From 7198e715b84822c51bb35f7a16943d9f48276c2a Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Tue, 10 Mar 2026 15:02:44 -0400 Subject: [PATCH 01/13] feat: Refactor header and add category bar, mobile menu, and search functionality --- frontend/src/App.css | 4 +- .../src/components/Category/CategoryBar.tsx | 29 +++++++++++ frontend/src/components/Header.tsx | 15 ------ frontend/src/components/Header/Header.tsx | 21 ++++++++ .../src/components/{ => Header}/MaxLogo.tsx | 0 frontend/src/components/Header/SearchBar.tsx | 25 ++++++++++ .../src/components/{ => Header}/UserAuth.tsx | 2 +- .../src/components/MobileMenu/MobileMenu.tsx | 49 +++++++++++++++++++ frontend/src/components/SearchBar.tsx | 26 ---------- frontend/src/index.css | 9 ++++ frontend/src/pages/Home.tsx | 4 +- 11 files changed, 139 insertions(+), 45 deletions(-) create mode 100644 frontend/src/components/Category/CategoryBar.tsx delete mode 100644 frontend/src/components/Header.tsx create mode 100644 frontend/src/components/Header/Header.tsx rename frontend/src/components/{ => Header}/MaxLogo.tsx (100%) create mode 100644 frontend/src/components/Header/SearchBar.tsx rename frontend/src/components/{ => Header}/UserAuth.tsx (92%) create mode 100644 frontend/src/components/MobileMenu/MobileMenu.tsx delete mode 100644 frontend/src/components/SearchBar.tsx diff --git a/frontend/src/App.css b/frontend/src/App.css index 8e9aca3..c446417 100644 --- a/frontend/src/App.css +++ b/frontend/src/App.css @@ -1,6 +1,6 @@ #root { - max-width: 1315px; + margin: 0 auto; - padding: 0.5rem; + } diff --git a/frontend/src/components/Category/CategoryBar.tsx b/frontend/src/components/Category/CategoryBar.tsx new file mode 100644 index 0000000..407ada8 --- /dev/null +++ b/frontend/src/components/Category/CategoryBar.tsx @@ -0,0 +1,29 @@ +const categories = [ + "Trending", + "Politics", + "Sports", + "Culture", + "Crypto", + "Climate", + "Economics", + "Mentions", + "Companies", + "Financials", + "Tech & Science", +]; + +export default function CategoryBar() { + return ( +
+ {categories.map((category) => ( + + {category} + + ))} +
+ ); +} \ No newline at end of file diff --git a/frontend/src/components/Header.tsx b/frontend/src/components/Header.tsx deleted file mode 100644 index a186012..0000000 --- a/frontend/src/components/Header.tsx +++ /dev/null @@ -1,15 +0,0 @@ -import MaxLogo from "./MaxLogo"; -import SearchBar from "./SearchBar"; -import UserAuth from "./UserAuth"; - -export default function Header() { - return ( -
- - - - - -
- ); -} diff --git a/frontend/src/components/Header/Header.tsx b/frontend/src/components/Header/Header.tsx new file mode 100644 index 0000000..1bceca1 --- /dev/null +++ b/frontend/src/components/Header/Header.tsx @@ -0,0 +1,21 @@ +import CategoryBar from "../Category/CategoryBar"; +import MaxLogo from "./MaxLogo"; +import SearchBar from "./SearchBar"; +import UserAuth from "./UserAuth"; + +export default function Header() { + return ( +
+
+ + +
+ +
+ + +
+ +
+ ); +} diff --git a/frontend/src/components/MaxLogo.tsx b/frontend/src/components/Header/MaxLogo.tsx similarity index 100% rename from frontend/src/components/MaxLogo.tsx rename to frontend/src/components/Header/MaxLogo.tsx diff --git a/frontend/src/components/Header/SearchBar.tsx b/frontend/src/components/Header/SearchBar.tsx new file mode 100644 index 0000000..731c5c3 --- /dev/null +++ b/frontend/src/components/Header/SearchBar.tsx @@ -0,0 +1,25 @@ +export default function MaxLogo() { + return ( +
+
+ + + +
+ + +
+ ); +} diff --git a/frontend/src/components/UserAuth.tsx b/frontend/src/components/Header/UserAuth.tsx similarity index 92% rename from frontend/src/components/UserAuth.tsx rename to frontend/src/components/Header/UserAuth.tsx index 74bc37e..cb98874 100644 --- a/frontend/src/components/UserAuth.tsx +++ b/frontend/src/components/Header/UserAuth.tsx @@ -1,6 +1,6 @@ export default function MaxLogo() { return ( -
+
diff --git a/frontend/src/components/MobileMenu/MobileMenu.tsx b/frontend/src/components/MobileMenu/MobileMenu.tsx new file mode 100644 index 0000000..af130a8 --- /dev/null +++ b/frontend/src/components/MobileMenu/MobileMenu.tsx @@ -0,0 +1,49 @@ +export default function MobileMenu() { + const menuItems = [ + { name: "Home", href: "/" }, + { name: "Wallet", href: "/wallet" }, + { name: "Search", href: "/search" }, + { name: "Profile", href: "/profile" }, + ]; + + const icons = { + Home: ( + + + + ), + Wallet: ( + + + + + ), + Search: ( + + + + ), + Profile: ( + + + + ), + }; + + return ( +
+
+ {menuItems.map((item) => ( + + {icons[item.name as keyof typeof icons]} + {item.name} + + ))} +
+
+ ); +} diff --git a/frontend/src/components/SearchBar.tsx b/frontend/src/components/SearchBar.tsx deleted file mode 100644 index 041344f..0000000 --- a/frontend/src/components/SearchBar.tsx +++ /dev/null @@ -1,26 +0,0 @@ -export default function MaxLogo() { - return ( -
-
- - - -
- - -
- ) -} \ No newline at end of file diff --git a/frontend/src/index.css b/frontend/src/index.css index 47b87ef..ac5bf85 100644 --- a/frontend/src/index.css +++ b/frontend/src/index.css @@ -4,6 +4,15 @@ background-color: #000000; } +@layer utilities { + .scrollbar-hide::-webkit-scrollbar { + display: none; + } + .scrollbar-hide { + -ms-overflow-style: none; + scrollbar-width: none; + } +} body { min-width: 320px; diff --git a/frontend/src/pages/Home.tsx b/frontend/src/pages/Home.tsx index 19b55df..ee88061 100644 --- a/frontend/src/pages/Home.tsx +++ b/frontend/src/pages/Home.tsx @@ -1,8 +1,10 @@ -import Header from "../components/Header"; +import Header from "../components/Header/Header"; +import MobileMenu from "../components/MobileMenu/MobileMenu"; export default function Home() { return ( <>
+ ) } \ No newline at end of file From 2f3f89e30b3d05699d877218388cb22b31591918 Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Tue, 10 Mar 2026 23:45:39 -0400 Subject: [PATCH 02/13] feat: Enhance header and category bar with scroll functionality, update search components, and remove mobile menu --- .../src/components/Category/CategoryBar.tsx | 17 ++++++- frontend/src/components/Header/Header.tsx | 12 ++--- frontend/src/components/Header/MaxLogo.tsx | 2 +- frontend/src/components/Header/UserAuth.tsx | 8 +-- .../src/components/MobileMenu/MobileMenu.tsx | 49 ------------------- .../src/components/Search/MobileSearch.tsx | 17 +++++++ .../{Header => Search}/SearchBar.tsx | 2 +- frontend/src/pages/Home.tsx | 3 +- 8 files changed, 47 insertions(+), 63 deletions(-) delete mode 100644 frontend/src/components/MobileMenu/MobileMenu.tsx create mode 100644 frontend/src/components/Search/MobileSearch.tsx rename frontend/src/components/{Header => Search}/SearchBar.tsx (86%) diff --git a/frontend/src/components/Category/CategoryBar.tsx b/frontend/src/components/Category/CategoryBar.tsx index 407ada8..444ee99 100644 --- a/frontend/src/components/Category/CategoryBar.tsx +++ b/frontend/src/components/Category/CategoryBar.tsx @@ -1,3 +1,5 @@ +import { useRef } from "react"; + const categories = [ "Trending", "Politics", @@ -13,8 +15,21 @@ const categories = [ ]; export default function CategoryBar() { + const scrollRef = useRef(null); + + const handleWheel = (e: React.WheelEvent) => { + if (scrollRef.current) { + e.preventDefault(); + scrollRef.current.scrollLeft += e.deltaY; + } + }; + return ( -
+
{categories.map((category) => ( -
+
+
-
- -
+ + +
diff --git a/frontend/src/components/Header/MaxLogo.tsx b/frontend/src/components/Header/MaxLogo.tsx index 6368239..d95b6b5 100644 --- a/frontend/src/components/Header/MaxLogo.tsx +++ b/frontend/src/components/Header/MaxLogo.tsx @@ -2,7 +2,7 @@ export default function MaxLogo() { return ( ) diff --git a/frontend/src/components/Header/UserAuth.tsx b/frontend/src/components/Header/UserAuth.tsx index cb98874..1756e8f 100644 --- a/frontend/src/components/Header/UserAuth.tsx +++ b/frontend/src/components/Header/UserAuth.tsx @@ -1,10 +1,12 @@ +import MobileSearch from "../Search/MobileSearch"; export default function MaxLogo() { return ( -
- -
diff --git a/frontend/src/components/MobileMenu/MobileMenu.tsx b/frontend/src/components/MobileMenu/MobileMenu.tsx deleted file mode 100644 index af130a8..0000000 --- a/frontend/src/components/MobileMenu/MobileMenu.tsx +++ /dev/null @@ -1,49 +0,0 @@ -export default function MobileMenu() { - const menuItems = [ - { name: "Home", href: "/" }, - { name: "Wallet", href: "/wallet" }, - { name: "Search", href: "/search" }, - { name: "Profile", href: "/profile" }, - ]; - - const icons = { - Home: ( - - - - ), - Wallet: ( - - - - - ), - Search: ( - - - - ), - Profile: ( - - - - ), - }; - - return ( -
- -
- ); -} diff --git a/frontend/src/components/Search/MobileSearch.tsx b/frontend/src/components/Search/MobileSearch.tsx new file mode 100644 index 0000000..42f135f --- /dev/null +++ b/frontend/src/components/Search/MobileSearch.tsx @@ -0,0 +1,17 @@ +export default function MobileSearch() { + return ( + + ); +} diff --git a/frontend/src/components/Header/SearchBar.tsx b/frontend/src/components/Search/SearchBar.tsx similarity index 86% rename from frontend/src/components/Header/SearchBar.tsx rename to frontend/src/components/Search/SearchBar.tsx index 731c5c3..8f42510 100644 --- a/frontend/src/components/Header/SearchBar.tsx +++ b/frontend/src/components/Search/SearchBar.tsx @@ -1,6 +1,6 @@ export default function MaxLogo() { return ( -
+
- + ) } \ No newline at end of file From 29227c5e4d7f2aa81b2a5636b9aa5cdceb223803 Mon Sep 17 00:00:00 2001 From: aumpatel Date: Wed, 11 Mar 2026 19:27:28 -0400 Subject: [PATCH 03/13] .. --- matching-engine/journals/engine.log | 3 ++ .../api/service/MarketManagmentService.java | 5 +++ .../Wallets/InMemoryWalletService.class | Bin 6574 -> 0 bytes .../matching/Wallets/RiskManager.class | Bin 1091 -> 0 bytes .../matching/Wallets/WalletService.class | Bin 834 -> 0 bytes .../api/controller/MarketController.class | Bin 3131 -> 0 bytes .../api/controller/OrderController.class | Bin 3858 -> 0 bytes .../api/controller/WalletController.class | Bin 5380 -> 0 bytes .../matching/api/dto/DepositRequest.class | Bin 2719 -> 0 bytes .../EventRequest$EventRequestBuilder.class | Bin 2415 -> 0 bytes ...ookResponse$OrderBookResponseBuilder.class | Bin 2330 -> 0 bytes .../matching/api/dto/OrderBookResponse.class | Bin 3760 -> 0 bytes .../matching/api/dto/OrderMapper.class | Bin 2026 -> 0 bytes .../matching/api/dto/OrderRequest.class | Bin 4622 -> 0 bytes .../OrderResponse$OrderResponseBuilder.class | Bin 1996 -> 0 bytes .../matching/api/dto/OrderResponse.class | Bin 3436 -> 0 bytes .../example/matching/api/dto/PriceLevel.class | Bin 2373 -> 0 bytes ...WalletResponse$WalletResponseBuilder.class | Bin 2661 -> 0 bytes .../matching/api/dto/WalletResponse.class | Bin 4498 -> 0 bytes .../matching/api/dto/enums/EventStatus.class | Bin 1285 -> 0 bytes .../matching/api/service/OrderService.class | Bin 8403 -> 0 bytes .../app/MatchingEngineApplication.class | Bin 886 -> 0 bytes .../config/MatchingEngineConfig.class | Bin 2020 -> 0 bytes .../matching/journal/EventJournal.class | Bin 3303 -> 0 bytes .../matching/matching/MatchingEngine.class | Bin 7989 -> 0 bytes .../org/example/matching/model/Order.class | Bin 3466 -> 0 bytes .../example/matching/model/OrderBook.class | Bin 10331 -> 0 bytes .../example/matching/model/OrderSide.class | Bin 1163 -> 0 bytes .../example/matching/model/Reservation.class | Bin 3100 -> 0 bytes .../org/example/matching/model/Trade.class | Bin 2905 -> 0 bytes .../org/example/matching/model/Wallet.class | Bin 4473 -> 0 bytes .../orderbook/InMemoryOrderRepository.class | Bin 1658 -> 0 bytes .../matching/orderbook/OrderRepository.class | Bin 592 -> 0 bytes .../compile/default-compile/createdFiles.lst | 31 ------------------ 34 files changed, 8 insertions(+), 31 deletions(-) delete mode 100644 matching-engine/target/classes/org/example/matching/Wallets/InMemoryWalletService.class delete mode 100644 matching-engine/target/classes/org/example/matching/Wallets/RiskManager.class delete mode 100644 matching-engine/target/classes/org/example/matching/Wallets/WalletService.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/controller/MarketController.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/controller/OrderController.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/controller/WalletController.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/DepositRequest.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/EventRequest$EventRequestBuilder.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderBookResponse.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderMapper.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderRequest.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/OrderResponse.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/PriceLevel.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/WalletResponse$WalletResponseBuilder.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/WalletResponse.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/dto/enums/EventStatus.class delete mode 100644 matching-engine/target/classes/org/example/matching/api/service/OrderService.class delete mode 100644 matching-engine/target/classes/org/example/matching/app/MatchingEngineApplication.class delete mode 100644 matching-engine/target/classes/org/example/matching/config/MatchingEngineConfig.class delete mode 100644 matching-engine/target/classes/org/example/matching/journal/EventJournal.class delete mode 100644 matching-engine/target/classes/org/example/matching/matching/MatchingEngine.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/Order.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/OrderBook.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/OrderSide.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/Reservation.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/Trade.class delete mode 100644 matching-engine/target/classes/org/example/matching/model/Wallet.class delete mode 100644 matching-engine/target/classes/org/example/matching/orderbook/InMemoryOrderRepository.class delete mode 100644 matching-engine/target/classes/org/example/matching/orderbook/OrderRepository.class diff --git a/matching-engine/journals/engine.log b/matching-engine/journals/engine.log index 1dbd384..f9417cf 100644 --- a/matching-engine/journals/engine.log +++ b/matching-engine/journals/engine.log @@ -436,6 +436,7 @@ ORDER_PLACED: HOUSE_BOT-LOW_N-BUY-1773271525754 ORDER HOUSE_BOT-LOW_N-BUY-1773271525754 HOUSE_BOT BUY 47 500 1773271525754 ORDER_PLACED: HOUSE_BOT-LOW_N-SELL-1773271525754 ORDER HOUSE_BOT-LOW_N-SELL-1773271525754 HOUSE_BOT SELL 49 500 1773271525754 +<<<<<<< HEAD ORDER_PLACED: HOUSE_BOT-EVENT_Y-BUY-1773272988202 ORDER HOUSE_BOT-EVENT_Y-BUY-1773272988202 HOUSE_BOT BUY 49 500 1773272988202 ORDER_PLACED: HOUSE_BOT-EVENT_Y-SELL-1773272988206 @@ -458,3 +459,5 @@ ORDER_PLACED: HOUSE_BOT-EVENT_N-SELL-1773272994021 ORDER HOUSE_BOT-EVENT_N-SELL-1773272994021 HOUSE_BOT SELL 51 500 1773272994021 ORDER_PLACED: 528ff941-d66a-495e-9f51-687ce8ec7d84 ORDER 528ff941-d66a-495e-9f51-687ce8ec7d84 STOCK_TRADER BUY 150 10 1773272994036 +======= +>>>>>>> cb3b478 ( liquidity feature parameter/arg added! and latest final ready max1) diff --git a/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java b/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java index 9784e52..e95945b 100644 --- a/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java +++ b/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java @@ -51,6 +51,11 @@ public MarketEvent getEventByTicker(String ticker) { return tickerToEvent.get(ticker); } + // Check if ticker belongs to an event (prediction market) vs regular stock + public boolean isEventTicker(String ticker) { + return tickerToEvent.containsKey(ticker); + } + // Check if ticker belongs to an event (prediction market) vs regular stock public boolean isEventTicker(String ticker) { return tickerToEvent.containsKey(ticker); diff --git a/matching-engine/target/classes/org/example/matching/Wallets/InMemoryWalletService.class b/matching-engine/target/classes/org/example/matching/Wallets/InMemoryWalletService.class deleted file mode 100644 index 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z3Z-*yq0Pf(@2aiEto0#LfNV5caDr`8HD(2cmXr@{(`Oy81Fw?oT z+N^!3F=#EsO7KJwa5!CHXc^RUu|fvd-N8=2R7aRpTtRO_3@>QsI(ijGq-fFP4C>`f z2KzIqqQ~`f#Gu<9Y$lDZA!R|YDiu}|UuLCNA_*AyWw&cO7|U1*TNsiv_$R^b->UCv zNRv#E+Dcq!7dKh+B#CHLNNO4D!i4xF6Oz;33bXIrF}NBP%E}ZcGMCc?AC%HoIA@f~ zO{px;ocEav>rI;_&nYt0cAX*LtR`qMV6aEK1*p-M>d>IOPq#XyN;S#`n&ADG4(a8H eJ`axR=>$$U=vIk7+ae(3d5OP(Hl2>W1MmY0@}N5a diff --git a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst index acd2cd4..e69de29 100644 --- a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst +++ b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst @@ -1,31 +0,0 @@ -org/example/matching/api/controller/MarketController.class -org/example/matching/app/MatchingEngineApplication.class -org/example/matching/api/dto/EventRequest$EventRequestBuilder.class -org/example/matching/model/Trade.class -org/example/matching/model/OrderSide.class -org/example/matching/api/dto/OrderResponse.class -org/example/matching/journal/EventJournal.class -org/example/matching/Wallets/WalletService.class -org/example/matching/Wallets/InMemoryWalletService.class -org/example/matching/model/Reservation.class -org/example/matching/api/controller/OrderController.class -org/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class -org/example/matching/model/OrderBook.class -org/example/matching/api/dto/WalletResponse$WalletResponseBuilder.class -org/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class -org/example/matching/orderbook/InMemoryOrderRepository.class -org/example/matching/matching/MatchingEngine.class -org/example/matching/model/Order.class -org/example/matching/api/dto/DepositRequest.class -org/example/matching/api/dto/PriceLevel.class -org/example/matching/api/dto/WalletResponse.class -org/example/matching/api/controller/WalletController.class -org/example/matching/Wallets/RiskManager.class -org/example/matching/api/dto/OrderMapper.class -org/example/matching/api/dto/OrderBookResponse.class -org/example/matching/api/dto/enums/EventStatus.class -org/example/matching/api/dto/OrderRequest.class -org/example/matching/config/MatchingEngineConfig.class -org/example/matching/orderbook/OrderRepository.class -org/example/matching/model/Wallet.class -org/example/matching/api/service/OrderService.class From 3ad518d144f3397c94c65c88e7e73bb4ffcf91c2 Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Wed, 11 Mar 2026 20:22:33 -0400 Subject: [PATCH 04/13] feat: Update Header and MobileSearch components with improved layout and search functionality --- frontend/src/components/Header/Header.tsx | 2 +- .../src/components/Search/MobileSearch.tsx | 65 +++++++++++++++---- 2 files changed, 54 insertions(+), 13 deletions(-) diff --git a/frontend/src/components/Header/Header.tsx b/frontend/src/components/Header/Header.tsx index 50c0282..5a0e71f 100644 --- a/frontend/src/components/Header/Header.tsx +++ b/frontend/src/components/Header/Header.tsx @@ -6,7 +6,7 @@ import UserAuth from "./UserAuth"; export default function Header() { return (
-
+
diff --git a/frontend/src/components/Search/MobileSearch.tsx b/frontend/src/components/Search/MobileSearch.tsx index 42f135f..7b9faf2 100644 --- a/frontend/src/components/Search/MobileSearch.tsx +++ b/frontend/src/components/Search/MobileSearch.tsx @@ -1,17 +1,58 @@ +import { useState } from "react"; +import MaxLogo from "../Header/MaxLogo"; export default function MobileSearch() { + const [isSearchOpen, setIsSearchOpen] = useState(false); return ( - + + + + + {isSearchOpen && ( +
+
+ + +
+
+
+ +
+
+
+ )} + ); } From b36d699e65312ab00501c807e602f6722c39032c Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Wed, 11 Mar 2026 21:08:02 -0400 Subject: [PATCH 05/13] feat: Add shake animation to search components and improve focus handling --- .../src/components/Search/MobileSearch.tsx | 36 ++++++++++++++++--- frontend/src/components/Search/SearchBar.tsx | 34 +++++++++++------- frontend/src/index.css | 16 +++++++++ 3 files changed, 68 insertions(+), 18 deletions(-) diff --git a/frontend/src/components/Search/MobileSearch.tsx b/frontend/src/components/Search/MobileSearch.tsx index 7b9faf2..742009b 100644 --- a/frontend/src/components/Search/MobileSearch.tsx +++ b/frontend/src/components/Search/MobileSearch.tsx @@ -1,7 +1,21 @@ -import { useState } from "react"; +import { useState, useEffect, useRef } from "react"; import MaxLogo from "../Header/MaxLogo"; export default function MobileSearch() { const [isSearchOpen, setIsSearchOpen] = useState(false); + const [shouldShake, setShouldShake] = useState(false); + + const handleFocus = () => { + setShouldShake(true); + setTimeout(() => setShouldShake(false), 500); + }; + + useEffect(() => { + if (isSearchOpen) { + setShouldShake(true); + const timer = setTimeout(() => setShouldShake(false), 500); + return () => clearTimeout(timer); + } + }, [isSearchOpen]); return ( <>
-
-
+
+
+ + +
diff --git a/frontend/src/components/Search/SearchBar.tsx b/frontend/src/components/Search/SearchBar.tsx index 8f42510..b7112ef 100644 --- a/frontend/src/components/Search/SearchBar.tsx +++ b/frontend/src/components/Search/SearchBar.tsx @@ -1,23 +1,31 @@ +import { useState } from "react"; + export default function MaxLogo() { + const [shouldShake, setShouldShake] = useState(false); + + const handleFocus = () => { + setShouldShake(true); + setTimeout(() => setShouldShake(false), 500); + }; + return (
-
- - - -
+ + +
diff --git a/frontend/src/index.css b/frontend/src/index.css index ac5bf85..b605005 100644 --- a/frontend/src/index.css +++ b/frontend/src/index.css @@ -12,6 +12,22 @@ -ms-overflow-style: none; scrollbar-width: none; } + + @keyframes shake { + 0%, 100% { + transform: rotate(0deg); + } + 25% { + transform: rotate(15deg); + } + 75% { + transform: rotate(-15deg); + } + } + + .animate-shake { + animation: shake 0.5s ease-in-out; + } } body { From 9a4817421ddb08a97733606314300bef5fa8c396 Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Wed, 11 Mar 2026 21:19:30 -0400 Subject: [PATCH 06/13] feat: Add comprehensive README files for backend and frontend, detailing project structure, technology stack, and setup instructions --- README.md | 145 ++++++++++++++ backend/README.md | 249 ++++++++++++++++++++++++ frontend/README.md | 458 ++++++++++++++++++++++++++++++++++++++------- 3 files changed, 780 insertions(+), 72 deletions(-) create mode 100644 README.md create mode 100644 backend/README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..601cd26 --- /dev/null +++ b/README.md @@ -0,0 +1,145 @@ +# Max - Stock Exchange Platform + +Max is a modern stock exchange platform built with a Spring Boot backend and React frontend. The platform provides real-time trading capabilities with a sleek, responsive user interface. + +## 🏗️ Project Structure + +``` +Max/ +├── backend/ # Spring Boot backend services +│ ├── matching-engine/ # Order matching engine +│ └── common/ # Shared utilities and models +└── frontend/ # React + TypeScript frontend + └── src/ + ├── components/ # Reusable UI components + └── pages/ # Application pages +``` + +## 🚀 Features + +- **Real-time Trading**: High-performance order matching engine +- **Responsive Design**: Mobile-first UI with tablet and desktop support +- **Modern UI/UX**: Built with React 19 and Tailwind CSS 4 +- **Category Navigation**: Browse markets by categories (Trending, Politics, Sports, Crypto, etc.) +- **Search Functionality**: Advanced search with smooth animations +- **User Authentication**: Login and signup functionality + +## 🛠️ Tech Stack + +### Backend +- **Framework**: Spring Boot 3.2.2 +- **Language**: Java +- **Build Tool**: Maven +- **Key Dependencies**: + - Spring Web + - Spring Validation + - Lombok + +### Frontend +- **Framework**: React 19.2.0 +- **Language**: TypeScript 5.9.3 +- **Build Tool**: Vite 7.3.1 +- **Styling**: Tailwind CSS 4.2.1 +- **Routing**: React Router DOM 7.13.1 + +## 📋 Prerequisites + +- **Java**: JDK 17 or higher +- **Node.js**: v18 or higher +- **npm**: v9 or higher +- **Maven**: 3.6 or higher + +## 🚀 Quick Start + +### 1. Clone the Repository +```bash +git clone +cd Max +``` + +### 2. Start Backend +```bash +cd backend/matching-engine +mvn clean install +mvn spring-boot:run +``` + +The backend will start on `http://localhost:8080` + +### 3. Start Frontend +```bash +cd frontend +npm install +npm run dev +``` + +The frontend will start on `http://localhost:5173` + +## 📚 Documentation + +For detailed setup and development instructions, see: +- [Backend README](./backend/README.md) +- [Frontend README](./frontend/README.md) + +## 🎨 UI Features + +- **Responsive Header**: Adaptive navigation for mobile, tablet, and desktop +- **Category Bar**: Horizontal scrolling with mouse wheel support +- **Search Modal**: Animated search with blur background +- **Mobile Menu**: Bottom navigation for mobile devices +- **Custom Animations**: Shake effects and smooth transitions + +## 🔧 Development + +### Backend Development +```bash +cd backend/matching-engine +mvn spring-boot:run +``` + +### Frontend Development +```bash +cd frontend +npm run dev +``` + +### Build for Production + +**Backend:** +```bash +cd backend/matching-engine +mvn clean package +``` + +**Frontend:** +```bash +cd frontend +npm run build +``` + +## 📝 Project Status + +This project is currently in active development. Features are being added and refined regularly. + +## 🤝 Contributing + +1. Fork the repository +2. Create your feature branch (`git checkout -b feature/AmazingFeature`) +3. Commit your changes (`git commit -m 'Add some AmazingFeature'`) +4. Push to the branch (`git push origin feature/AmazingFeature`) +5. Open a Pull Request + +## 📄 License + +This project is private and proprietary. + +## 👥 Authors + +- Aum Patel +- Ved Patel + +## 🙏 Acknowledgments + +- Spring Boot team for the excellent framework +- React team for the powerful UI library +- Tailwind CSS for the utility-first CSS framework diff --git a/backend/README.md b/backend/README.md new file mode 100644 index 0000000..749a73a --- /dev/null +++ b/backend/README.md @@ -0,0 +1,249 @@ +# Max Backend - Stock Exchange Matching Engine + +The backend service for Max stock exchange platform, built with Spring Boot. This service handles order matching, trade execution, and provides RESTful APIs for the frontend. + +## 🏗️ Architecture + +``` +backend/ +├── matching-engine/ # Main matching engine service +│ ├── src/ +│ │ ├── main/ +│ │ │ ├── java/org/example/ +│ │ │ └── resources/ +│ │ │ └── application.properties +│ │ └── test/ +│ ├── journals/ # Engine logs +│ └── pom.xml +├── common/ # Shared utilities and models +│ ├── src/main/java/org/example/ +│ └── pom.xml +└── src/ # Additional source files +``` + +## 🛠️ Technology Stack + +- **Framework**: Spring Boot 3.2.2 +- **Language**: Java 17+ +- **Build Tool**: Maven +- **Parent**: Spring Boot Starter Parent 3.2.2 + +### Key Dependencies + +- **Spring Boot Starter Web**: RESTful API development +- **Spring Boot Starter Validation**: Input validation +- **Lombok**: Reduce boilerplate code +- **JUnit Jupiter 5.10.0**: Unit testing + +## 📋 Prerequisites + +- Java Development Kit (JDK) 17 or higher +- Maven 3.6 or higher +- IDE (IntelliJ IDEA, Eclipse, or VS Code recommended) + +## 🚀 Getting Started + +### 1. Install Dependencies + +Navigate to the matching-engine directory: +```bash +cd backend/matching-engine +``` + +Install all dependencies: +```bash +mvn clean install +``` + +### 2. Configure Application + +Edit `src/main/resources/application.properties`: +```properties +# Server Configuration +server.port=8080 + +# Application Name +spring.application.name=matching-engine + +# Logging Configuration +logging.level.org.example=DEBUG +logging.file.name=journals/engine.log +``` + +### 3. Run the Application + +**Using Maven:** +```bash +mvn spring-boot:run +``` + +**Using Java:** +```bash +mvn clean package +java -jar target/matching-engine-1.0-SNAPSHOT.jar +``` + +The application will start on `http://localhost:8080` + +## 🧪 Testing + +### Run All Tests +```bash +mvn test +``` + +### Run Specific Test +```bash +mvn test -Dtest=YourTestClassName +``` + +### Generate Test Coverage Report +```bash +mvn clean test jacoco:report +``` + +## 📁 Project Modules + +### Matching Engine +The core service that handles: +- Order matching logic +- Trade execution +- Market data management +- RESTful API endpoints + +### Common Module +Shared utilities and models used across services: +- Data models +- Utility classes +- Common configurations +- Shared constants + +## 🔧 Development + +### Build the Project +```bash +mvn clean install +``` + +### Run in Development Mode +```bash +mvn spring-boot:run -Dspring-boot.run.profiles=dev +``` + +### Package for Production +```bash +mvn clean package -DskipTests +``` + +## 📊 API Endpoints + +### Health Check +``` +GET /actuator/health +``` + +### Order Management +``` +POST /api/orders # Create new order +GET /api/orders/{id} # Get order by ID +GET /api/orders # List all orders +DELETE /api/orders/{id} # Cancel order +``` + +### Market Data +``` +GET /api/markets # List all markets +GET /api/markets/{id} # Get market details +``` + +## 🐛 Debugging + +### Enable Debug Logging +Add to `application.properties`: +```properties +logging.level.org.example=DEBUG +logging.level.org.springframework.web=DEBUG +``` + +### View Logs +```bash +tail -f journals/engine.log +``` + +## 🔒 Security Considerations + +- Input validation using Spring Validation +- CORS configuration for frontend integration +- Request/Response logging for audit trails + +## 📈 Performance + +- Optimized order matching algorithm +- Efficient data structures for order books +- Asynchronous processing where applicable + +## 🚀 Deployment + +### Build Docker Image (Future) +```bash +docker build -t max-backend:latest . +docker run -p 8080:8080 max-backend:latest +``` + +### Environment Variables +```bash +SPRING_PROFILES_ACTIVE=prod +SERVER_PORT=8080 +``` + +## 📝 Code Style + +- Follow Java naming conventions +- Use Lombok annotations to reduce boilerplate +- Write unit tests for all business logic +- Document complex algorithms + +## 🔄 CI/CD + +### Maven Lifecycle +1. `mvn clean` - Clean build artifacts +2. `mvn compile` - Compile source code +3. `mvn test` - Run tests +4. `mvn package` - Create JAR file +5. `mvn install` - Install to local repository + +## 🐞 Troubleshooting + +### Port Already in Use +```bash +# Change port in application.properties +server.port=8081 +``` + +### Maven Build Fails +```bash +# Clean and rebuild +mvn clean install -U +``` + +### Lombok Not Working +- Install Lombok plugin in your IDE +- Enable annotation processing + +## 📚 Additional Resources + +- [Spring Boot Documentation](https://spring.io/projects/spring-boot) +- [Maven Documentation](https://maven.apache.org/guides/) +- [Lombok Documentation](https://projectlombok.org/) + +## 🤝 Contributing + +1. Create a feature branch +2. Write tests for new features +3. Ensure all tests pass +4. Follow code style guidelines +5. Submit a pull request + +## 📄 License + +This project is private and proprietary. diff --git a/frontend/README.md b/frontend/README.md index d2e7761..5dbf533 100644 --- a/frontend/README.md +++ b/frontend/README.md @@ -1,73 +1,387 @@ -# React + TypeScript + Vite - -This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules. - -Currently, two official plugins are available: - -- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh -- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh - -## React Compiler - -The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation). - -## Expanding the ESLint configuration - -If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules: - -```js -export default defineConfig([ - globalIgnores(['dist']), - { - files: ['**/*.{ts,tsx}'], - extends: [ - // Other configs... - - // Remove tseslint.configs.recommended and replace with this - tseslint.configs.recommendedTypeChecked, - // Alternatively, use this for stricter rules - tseslint.configs.strictTypeChecked, - // Optionally, add this for stylistic rules - tseslint.configs.stylisticTypeChecked, - - // Other configs... - ], - languageOptions: { - parserOptions: { - project: ['./tsconfig.node.json', './tsconfig.app.json'], - tsconfigRootDir: import.meta.dirname, - }, - // other options... - }, - }, -]) -``` - -You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules: - -```js -// eslint.config.js -import reactX from 'eslint-plugin-react-x' -import reactDom from 'eslint-plugin-react-dom' - -export default defineConfig([ - globalIgnores(['dist']), - { - files: ['**/*.{ts,tsx}'], - extends: [ - // Other configs... - // Enable lint rules for React - reactX.configs['recommended-typescript'], - // Enable lint rules for React DOM - reactDom.configs.recommended, - ], - languageOptions: { - parserOptions: { - project: ['./tsconfig.node.json', './tsconfig.app.json'], - tsconfigRootDir: import.meta.dirname, - }, - // other options... - }, - }, -]) +# Max Frontend - Stock Exchange UI + +Modern, responsive frontend for the Max stock exchange platform built with React, TypeScript, and Tailwind CSS. + +## 🏗️ Project Structure + +``` +frontend/ +├── public/ # Static assets +│ └── vite.svg +├── src/ +│ ├── components/ # Reusable UI components +│ │ ├── Category/ +│ │ │ └── CategoryBar.tsx +│ │ ├── Header/ +│ │ │ ├── Header.tsx +│ │ │ ├── MaxLogo.tsx +│ │ │ └── UserAuth.tsx +│ │ └── Search/ +│ │ ├── MobileSearch.tsx +│ │ └── SearchBar.tsx +│ ├── pages/ # Application pages +│ │ └── Home.tsx +│ ├── App.tsx # Main app component +│ ├── main.tsx # Application entry point +│ ├── index.css # Global styles +│ └── App.css # App-specific styles +├── index.html # HTML template +├── package.json # Dependencies and scripts +├── vite.config.ts # Vite configuration +└── tsconfig.json # TypeScript configuration +``` + +## 🛠️ Technology Stack + +- **Framework**: React 19.2.0 +- **Language**: TypeScript 5.9.3 +- **Build Tool**: Vite 7.3.1 +- **Styling**: Tailwind CSS 4.2.1 +- **Routing**: React Router DOM 7.13.1 +- **Linting**: ESLint 9.39.1 + +## 📋 Prerequisites + +- Node.js v18 or higher +- npm v9 or higher (or yarn/pnpm) + +## 🚀 Getting Started + +### 1. Install Dependencies + +```bash +cd frontend +npm install +``` + +### 2. Start Development Server + +```bash +npm run dev ``` + +The application will start on `http://localhost:5173` + +### 3. Build for Production + +```bash +npm run build +``` + +Build output will be in the `dist/` directory. + +### 4. Preview Production Build + +```bash +npm run preview +``` + +## 📜 Available Scripts + +| Script | Description | +|--------|-------------| +| `npm run dev` | Start development server with hot reload | +| `npm run build` | Build for production | +| `npm run preview` | Preview production build locally | +| `npm run lint` | Run ESLint to check code quality | + +## 🎨 UI Components + +### Header Components + +#### MaxLogo +- Responsive logo with different sizes for mobile, tablet, and desktop +- Sizes: `text-3xl` (mobile), `text-4xl` (tablet), `text-5xl` (desktop) + +#### UserAuth +- Login and Sign up buttons +- Responsive padding and text sizing +- Fixed height for consistency across devices +- Search button for mobile/tablet views + +#### SearchBar +- Desktop search input with animated icon +- Shake animation on focus +- Color changes from gray to `#48CAE4` when focused + +### Search Components + +#### MobileSearch +- Full-screen search modal for mobile/tablet +- Blur background overlay +- Animated search icon +- Auto-focus input field +- Close button with X icon + +### Category Components + +#### CategoryBar +- Horizontal scrolling category navigation +- Mouse wheel horizontal scrolling support +- Smooth scroll behavior +- Categories: Trending, Politics, Sports, Culture, Crypto, Climate, Economics, Mentions, Companies, Financials, Tech & Science + +## 🎨 Styling + +### Tailwind CSS Configuration + +The project uses Tailwind CSS 4 with custom utilities: + +```css +/* Custom Scrollbar Hide */ +.scrollbar-hide::-webkit-scrollbar { + display: none; +} +.scrollbar-hide { + -ms-overflow-style: none; + scrollbar-width: none; +} + +/* Custom Shake Animation */ +@keyframes shake { + 0%, 100% { transform: rotate(0deg); } + 25% { transform: rotate(15deg); } + 75% { transform: rotate(-15deg); } +} +.animate-shake { + animation: shake 0.5s ease-in-out; +} +``` + +### Color Palette + +- **Primary**: `#48CAE4` (Cyan) +- **Background**: `#000000` (Black) +- **Secondary Background**: `#242423` (Dark Gray) +- **Text**: `#ffffff` (White) +- **Text Secondary**: `rgba(255, 255, 255, 0.6)` (White 60%) + +### Responsive Breakpoints + +- **Mobile**: < 640px (default) +- **Tablet**: ≥ 640px (`sm:`) +- **Desktop**: ≥ 768px (`md:`) + +## 🔧 Development + +### Component Development + +Create new components in `src/components/`: + +```tsx +// Example component +export default function MyComponent() { + return ( +
+ {/* Component content */} +
+ ); +} +``` + +### Adding New Pages + +1. Create page in `src/pages/` +2. Add route in `App.tsx`: + +```tsx +} /> +``` + +### Custom Hooks + +Create custom hooks in `src/hooks/` (create directory if needed): + +```tsx +export function useCustomHook() { + // Hook logic +} +``` + +## 🎯 Features + +### Responsive Design +- Mobile-first approach +- Adaptive layouts for all screen sizes +- Touch-friendly interactions + +### Animations +- Smooth transitions +- Shake effects on focus +- Scale animations on button clicks +- Blur backgrounds for modals + +### User Experience +- Auto-focus on search inputs +- Keyboard navigation support +- Mouse wheel horizontal scrolling +- Visual feedback on interactions + +## 🐛 Debugging + +### Enable React DevTools +Install React Developer Tools browser extension + +### TypeScript Errors +```bash +# Check TypeScript errors +npx tsc --noEmit +``` + +### Vite Issues +```bash +# Clear Vite cache +rm -rf node_modules/.vite +npm run dev +``` + +## 📦 Building + +### Development Build +```bash +npm run dev +``` + +### Production Build +```bash +npm run build +``` + +### Analyze Bundle Size +```bash +npm run build -- --mode analyze +``` + +## 🚀 Deployment + +### Deploy to Vercel +```bash +npm install -g vercel +vercel +``` + +### Deploy to Netlify +```bash +npm run build +# Upload dist/ folder to Netlify +``` + +### Environment Variables +Create `.env` file: +```env +VITE_API_URL=http://localhost:8080 +VITE_APP_NAME=Max +``` + +Access in code: +```tsx +const apiUrl = import.meta.env.VITE_API_URL; +``` + +## 🧪 Testing (Future) + +### Setup Testing +```bash +npm install -D vitest @testing-library/react @testing-library/jest-dom +``` + +### Run Tests +```bash +npm run test +``` + +## 📱 Mobile Optimization + +- Bottom navigation for mobile devices +- Touch-optimized button sizes +- Responsive font sizes +- Optimized images and assets + +## ♿ Accessibility + +- Semantic HTML elements +- ARIA labels where needed +- Keyboard navigation support +- Focus indicators +- Color contrast compliance + +## 🔒 Security + +- No sensitive data in client-side code +- Environment variables for API endpoints +- Input sanitization +- XSS protection + +## 📈 Performance + +- Code splitting with React.lazy +- Optimized images +- Minimal bundle size +- Fast initial load time + +## 🎨 Design System + +### Typography +- Font: System fonts for optimal performance +- Sizes: Responsive with Tailwind utilities + +### Spacing +- Consistent padding and margins +- Gap utilities for flex/grid layouts + +### Components +- Reusable and composable +- Props for customization +- TypeScript for type safety + +## 🤝 Contributing + +1. Follow the existing code style +2. Use TypeScript for type safety +3. Write responsive components +4. Test on multiple devices +5. Use meaningful commit messages + +## 📚 Resources + +- [React Documentation](https://react.dev/) +- [TypeScript Documentation](https://www.typescriptlang.org/) +- [Tailwind CSS Documentation](https://tailwindcss.com/) +- [Vite Documentation](https://vitejs.dev/) +- [React Router Documentation](https://reactrouter.com/) + +## 🐞 Common Issues + +### Port Already in Use +```bash +# Change port +npm run dev -- --port 3000 +``` + +### Module Not Found +```bash +# Reinstall dependencies +rm -rf node_modules package-lock.json +npm install +``` + +### TypeScript Errors +```bash +# Update TypeScript +npm install -D typescript@latest +``` + +## 📄 License + +This project is private and proprietary. + +## 👥 Authors + +- Aum Patel +- Ved Patel + +## 🙏 Acknowledgments + +- React team for the amazing framework +- Tailwind CSS for the utility-first approach +- Vite for the blazing fast build tool From 383066e68c7314894bb1bdf8ce2052d8f00cd61d Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Thu, 12 Mar 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I#-+Ud1*quQOaK4? diff --git "a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]/shelved.patch" "b/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]/shelved.patch" deleted file mode 100644 index d6a1148..0000000 --- "a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]/shelved.patch" +++ /dev/null @@ -1,805 +0,0 @@ -Index: matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching;\n\nimport org.springframework.boot.SpringApplication;\nimport org.springframework.boot.autoconfigure.SpringBootApplication;\n\n@SpringBootApplication\npublic class MatchingEngineApplication {\n public static void main(String[] args) {\n SpringApplication.run(MatchingEngineApplication.class, args);\n }\n}\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java b/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java ---- a/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java -+++ b/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java -@@ -6,6 +6,7 @@ - @SpringBootApplication - public class MatchingEngineApplication { - public static void main(String[] args) { -+ - SpringApplication.run(MatchingEngineApplication.class, args); - } - } -Index: matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.api.service;\n\nimport lombok.RequiredArgsConstructor;\nimport org.example.matching.api.dto.OrderRequest;\nimport org.springframework.stereotype.Service;\n\n@Service\n@RequiredArgsConstructor\npublic class LiquidBotService {\n private final OrderService orderService;\n public void seedMarket(String yesTicker, String noTicker) {\n // Providing liquidity for YES\n placeBotOrder(yesTicker, \"BUY\", 45, 1000); // Bot buys from users at 45c\n placeBotOrder(yesTicker, \"SELL\", 55, 1000); // Bot sells to users at 55c\n\n // Providing liquidity for NO\n placeBotOrder(noTicker, \"BUY\", 45, 1000); // Bot buys from users at 45c\n placeBotOrder(noTicker, \"SELL\", 55, 1000); // Bot sells to users at 55c\n }\n private void placeBotOrder(String ticker, String side, long price, long qty){\n OrderRequest req = new OrderRequest();\n req.setUserId(\"HOUSE_BOT\");\n req.setInstrument(ticker);\n req.setSide(side);\n req.setPrice(price);\n req.setQuantity(qty);\n orderService.processOrder(req);\n }\n} -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java b/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java ---- a/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java -+++ b/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java -@@ -1,29 +1,84 @@ - package org.example.matching.api.service; - - import lombok.RequiredArgsConstructor; -+import org.example.matching.Wallets.WalletService; -+import org.example.matching.api.dto.MarketEvent; - import org.example.matching.api.dto.OrderRequest; -+import org.example.matching.api.service.OrderService; -+import org.example.matching.matching.MatchingEngine; - import org.springframework.stereotype.Service; - -+import java.util.concurrent.atomic.AtomicLong; -+ - @Service - @RequiredArgsConstructor - public class LiquidBotService { - private final OrderService orderService; -- public void seedMarket(String yesTicker, String noTicker) { -- // Providing liquidity for YES -- placeBotOrder(yesTicker, "BUY", 45, 1000); // Bot buys from users at 45c -- placeBotOrder(yesTicker, "SELL", 55, 1000); // Bot sells to users at 55c -+ private final WalletService walletService; -+ private final MatchingEngine matchingEngine; -+ private final MarketManagmentService marketManagmentService; -+ -+ private static final String BOT_ID = "HOUSE_BOT"; -+ private static final long INITIAL_INVENTORY = 10000; -+ private static final int SPREAD = 4; -+ -+ /** -+ * Entry point from OrderService. -+ */ -+ public void updateMarketTrigger(String currentTicker) { -+ // 1. Correctly fetch the EVENT object using the ticker -+ MarketEvent event = marketManagmentService.getEventByTicker(currentTicker); -+ if (event == null) return; -+ -+ // 2. Correctly fetch the PARTNER ticker name (String) -+ String partnerTicker = marketManagmentService.getPartnerTicker(currentTicker); -+ if (partnerTicker == null) return; - -- // Providing liquidity for NO -- placeBotOrder(noTicker, "BUY", 45, 1000); // Bot buys from users at 45c -- placeBotOrder(noTicker, "SELL", 55, 1000); // Bot sells to users at 55c -+ // 3. Identify roles and pull liquidity 'L' -+ String yesTicker = event.getYesTicker(); -+ String noTicker = event.getNoTicker(); -+ long L = event.getLiquidity(); -+ -+ recalculateAndPlaceOrders(yesTicker, noTicker, L); - } -- private void placeBotOrder(String ticker, String side, long price, long qty){ -+ -+ private void recalculateAndPlaceOrders(String yesTicker, String noTicker, long L) { -+ // Get YES Inventory -+ long yesInventory = walletService.getWallet(BOT_ID) -+ .getAvailableShares() -+ .getOrDefault(yesTicker, new AtomicLong(0)) -+ .get(); -+ -+ // KALSHI MATH: Sigmoid Curve -+ long netSold = INITIAL_INVENTORY - yesInventory; -+ -+ // Price = 100 / (1 + e^(-netSold / L)) -+ double exponent = (double) netSold / L; -+ long fairPriceYes = (long) (100.0 / (1.0 + Math.exp(-exponent))); -+ -+ fairPriceYes = Math.max(1, Math.min(99, fairPriceYes)); -+ long fairPriceNo = 100 - fairPriceYes; -+ -+ // Cleanup and Quote -+ matchingEngine.cancelAllOrdersForUser(BOT_ID, yesTicker); -+ matchingEngine.cancelAllOrdersForUser(BOT_ID, noTicker); -+ -+ placeBotOrder(yesTicker, "BUY", fairPriceYes - (SPREAD / 2), 500); -+ placeBotOrder(yesTicker, "SELL", fairPriceYes + (SPREAD / 2), 500); -+ -+ placeBotOrder(noTicker, "BUY", fairPriceNo - (SPREAD / 2), 500); -+ placeBotOrder(noTicker, "SELL", fairPriceNo + (SPREAD / 2), 500); -+ } -+ -+ private void placeBotOrder(String ticker, String side, long price, long qty) { -+ long safePrice = Math.max(1, Math.min(99, price)); - OrderRequest req = new OrderRequest(); -- req.setUserId("HOUSE_BOT"); -+ req.setUserId(BOT_ID); - req.setInstrument(ticker); - req.setSide(side); -- req.setPrice(price); -+ req.setPrice(safePrice); - req.setQuantity(qty); -+ req.setIdempotencyKey("BOT-" + ticker + "-" + side + "-" + System.nanoTime()); - orderService.processOrder(req); - } - } -\ No newline at end of file -Index: matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.api.controller;\n\nimport lombok.RequiredArgsConstructor;\nimport org.example.matching.api.dto.OrderBookResponse;\nimport org.example.matching.api.service.MarketDataService;\nimport org.example.matching.matching.MatchingEngine;\nimport org.springframework.http.ResponseEntity;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.PathVariable;\nimport org.springframework.web.bind.annotation.RequestMapping;\nimport org.springframework.web.bind.annotation.RestController;\n\nimport java.util.Map;\n\n@RequestMapping(\"/api/market\")\n@RestController\n@RequiredArgsConstructor\npublic class MarketController {\n private final MatchingEngine matchingEngine;\n private final MarketDataService marketDataService;\n\n// public MarketController(MatchingEngine matchingEngine) {\n// this.matchingEngine = matchingEngine;\n// }\n\n @GetMapping(\"/orderbook/{instrument}\")\n public ResponseEntity getOrderBook(@PathVariable String instrument) {\n OrderBookResponse snapshot = matchingEngine.getSnapshot(instrument);\n return ResponseEntity.ok(snapshot);\n }\n\n @GetMapping(\"/ticker/{instrument}\")\n public ResponseEntity> getTicker(@PathVariable String instrument){\n return ResponseEntity.ok(marketDataService.getSnapshots(instrument.toUpperCase()));\n }\n}\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java b/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java ---- a/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java -+++ b/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java -@@ -1,15 +1,15 @@ - package org.example.matching.api.controller; - - import lombok.RequiredArgsConstructor; -+import org.example.matching.api.dto.MarketEvent; - import org.example.matching.api.dto.OrderBookResponse; - import org.example.matching.api.service.MarketDataService; -+import org.example.matching.api.service.MarketManagmentService; - import org.example.matching.matching.MatchingEngine; - import org.springframework.http.ResponseEntity; --import org.springframework.web.bind.annotation.GetMapping; --import org.springframework.web.bind.annotation.PathVariable; --import org.springframework.web.bind.annotation.RequestMapping; --import org.springframework.web.bind.annotation.RestController; -+import org.springframework.web.bind.annotation.*; - -+import java.util.List; - import java.util.Map; - - @RequestMapping("/api/market") -@@ -19,10 +19,12 @@ - private final MatchingEngine matchingEngine; - private final MarketDataService marketDataService; - -+ private final MarketManagmentService marketService; - // public MarketController(MatchingEngine matchingEngine) { - // this.matchingEngine = matchingEngine; - // } - -+ - @GetMapping("/orderbook/{instrument}") - public ResponseEntity getOrderBook(@PathVariable String instrument) { - OrderBookResponse snapshot = matchingEngine.getSnapshot(instrument); -@@ -33,4 +35,19 @@ - public ResponseEntity> getTicker(@PathVariable String instrument){ - return ResponseEntity.ok(marketDataService.getSnapshots(instrument.toUpperCase())); - } -+ @GetMapping("/active") -+ public List getActiveMarkets() { -+ // This pulls from your MarketManagementService -+ return (List) marketService.getAllOpenEvents(); -+ } -+ @PostMapping("/events/create") -+ public ResponseEntity createEvent( -+ @RequestParam String id, -+ @RequestParam String question, -+ @RequestParam String yesTicker, -+ @RequestParam String noTicker, -+ @RequestParam int minutes) { -+ return ResponseEntity.ok(marketService.createEvent(id, question, yesTicker, noTicker, minutes)); -+ } -+ - } -Index: matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>//package org.example.matching.matching;\n//\n//import org.example.matching.journal.EventJournal;\n//import org.example.matching.model.Order;\n//import org.example.matching.model.OrderBook;\n//import org.example.matching.model.Trade;\n//\n//import java.util.List;\n//\n//public class MatchingEngine {\n//\n// private final OrderBook orderBook;\n// private final EventJournal journal;\n//\n// public MatchingEngine() {\n// this.orderBook = new OrderBook();\n// this.journal = new EventJournal();\n//\n// }\n//\n// public List placeOrder(Order order) {\n//\n// journal.append(\"ORDER \" +\n// order.getId() + \" \" +\n// order.getUserId() + \" \" +\n//\n// order.getPrice() + \" \" +\n// order.getQuantity()\n// +\" \"+ order.getTimestamp() + \" \"+ order.getSide());\n//\n// List trades = orderBook.placeOrder(order);\n//\n// for (Trade trade : trades) {\n// journal.append(\"TRADE \" +\n// trade.getBuyOrderId() + \" \" +\n// trade.getSellOrderId() + \" \" +\n// trade.getPrice() + \" \" +\n// trade.getQuantity()\n// +trade.getTimestamp());\n// }\n//\n// return trades;\n// }\n//\n// public String dumpBook() {\n// return orderBook.dumpBook();\n// }\n//}\n\n\npackage org.example.matching.matching;\n\nimport jakarta.annotation.PostConstruct;\nimport org.example.matching.api.dto.OrderBookResponse;\nimport org.example.matching.api.dto.PriceLevel;\nimport org.example.matching.journal.EventJournal;\nimport org.example.matching.model.Order;\nimport org.example.matching.model.OrderBook;\nimport org.example.matching.model.Trade;\nimport org.springframework.stereotype.Service;\n\nimport java.util.Deque;\nimport java.util.List;\nimport java.util.Map;\nimport java.util.TreeMap;\nimport java.util.concurrent.ConcurrentHashMap;\n\n\n@Service\npublic class MatchingEngine {\n\n private final Map orderBooks = new ConcurrentHashMap<>();\n private final EventJournal journal;\n\n public MatchingEngine() {\n this.journal = new EventJournal();\n }\n\n @PostConstruct\n public void init() {\n // Pre-create books for stocks you want to test\n orderBooks.put(\"AAPL\", new OrderBook());\n orderBooks.put(\"TSLA\", new OrderBook());\n orderBooks.put(\"BTC\", new OrderBook());\n }\n\n // Helper method to get the right order book\n private OrderBook getOrderBook(String instrument) {\n return orderBooks.computeIfAbsent(instrument, k -> new OrderBook());\n }\n // Add this inside your MatchingEngine class\n public OrderBook getOrderBookForMarketData(String instrument) {\n return orderBooks.getOrDefault(instrument, new OrderBook());\n }\n\n // live mode records to journal; record=false used during replay\n public List placeOrder(Order order, boolean record) {\n if (record) {\n journal.appendOrder(order.getId(), order.getUserId(), order.getSide().name(), order.getPrice(), order.getQuantity(), order.getTimestamp());\n }\n\n OrderBook book = getOrderBook(order.getInstrument() != null ? order.getInstrument() : \"DEFAULT\");\n List trades = book.placeOrder(order);\n\n if (record) {\n for (Trade t : trades) {\n journal.appendTrade(t.getBuyOrderId(), t.getSellOrderId(), t.getPrice(), (int) t.getQuantity(), t.getTimestamp());\n }\n }\n return trades;\n }\n\n // convenience for normal usage\n public List placeOrder(Order order) {\n return placeOrder(order, true);\n }\n\n // used by replay to rebuild book without re-journaling\n public void replayOrder(Order order) {\n placeOrder(order, false);\n }\n\n // replay all lines from journal (optional helper)\n public void replayJournal() {\n List lines = journal.readAllLines();\n for (String raw : lines) {\n if (raw == null || raw.isBlank()) continue;\n String[] parts = raw.split(\"\\\\s+\");\n if (parts.length < 2) continue;\n if (\"ORDER\".equals(parts[0]) && parts.length >= 7) {\n // ORDER id user side price qty ts\n String id = parts[1];\n String user = parts[2];\n String side = parts[3];\n long price = Long.parseLong(parts[4]);\n int qty = Integer.parseInt(parts[5]);\n long ts = Long.parseLong(parts[6]);\n // create order via your Order constructor (check arg ordering)\n Order o = new Order(id, user, price, qty, ts, org.example.matching.model.OrderSide.valueOf(side), \"DEFAULT\");\n replayOrder(o);\n }\n // ignore TRADE lines during replay\n }\n }\n /**\n * Returns a list of price levels for a specific side (bids or asks).\n * It sums up the quantities of all orders at each price point.\n */\n private List getPriceLevels(TreeMap> side) {\n return side.entrySet().stream()\n .map(entry -> {\n long price = entry.getKey();\n // Sum the quantity of every Order sitting in the Deque for this price\n long totalQty = entry.getValue().stream()\n .mapToLong(Order::getQuantity)\n .sum();\n return new PriceLevel(price, totalQty);\n })\n .toList();\n }\n\n\n /**\n * Creates a full snapshot of the book.\n */\n public OrderBookResponse getSnapshot(String instrument) {\n OrderBook book = getOrderBook(instrument);\n return OrderBookResponse.builder()\n .instrument(instrument)\n .bids(getPriceLevels(book.getBids()))\n .asks(getPriceLevels(book.getAsks()))\n .build();\n }\n\n public String dumpBook() {\n StringBuilder sb = new StringBuilder();\n for (Map.Entry entry : orderBooks.entrySet()) {\n sb.append(\"=== ORDER BOOK: \").append(entry.getKey()).append(\" ===\\n\");\n sb.append(entry.getValue().dumpBook());\n sb.append(\"\\n\");\n }\n return sb.toString();\n }\n}\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java b/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java ---- a/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -+++ b/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -@@ -51,6 +51,10 @@ - package org.example.matching.matching; - - import jakarta.annotation.PostConstruct; -+import lombok.AllArgsConstructor; -+import lombok.NoArgsConstructor; -+import lombok.RequiredArgsConstructor; -+import org.example.matching.Wallets.WalletService; - import org.example.matching.api.dto.OrderBookResponse; - import org.example.matching.api.dto.PriceLevel; - import org.example.matching.journal.EventJournal; -@@ -59,29 +63,47 @@ - import org.example.matching.model.Trade; - import org.springframework.stereotype.Service; - --import java.util.Deque; --import java.util.List; --import java.util.Map; --import java.util.TreeMap; -+import java.util.*; - import java.util.concurrent.ConcurrentHashMap; - - - @Service - public class MatchingEngine { -- -+private final WalletService walletService; - private final Map orderBooks = new ConcurrentHashMap<>(); - private final EventJournal journal; - - public MatchingEngine() { -+ this.walletService = null; - this.journal = new EventJournal(); - } - -+ public MatchingEngine(WalletService walletService, EventJournal eventJournal) { -+ this.walletService = walletService; -+ this.journal = eventJournal; -+ } -+// public MatchingEngine() { -+// this.journal = new EventJournal(); -+// } -+ - @PostConstruct - public void init() { - // Pre-create books for stocks you want to test - orderBooks.put("AAPL", new OrderBook()); - orderBooks.put("TSLA", new OrderBook()); - orderBooks.put("BTC", new OrderBook()); -+ -+ } -+ @PostConstruct -+ public void initBot() { -+ // Only initialize bot if walletService is available (not in test mode) -+ if (walletService != null) { -+ // Give the bot enough money to buy shares from users -+ walletService.creditUserCash("HOUSE_BOT", 1000000); // $10,000.00 -+ // Give the bot enough shares to sell to users -+ walletService.creditUserShares("HOUSE_BOT", "FED_Y", 5000); -+ walletService.creditUserShares("HOUSE_BOT", "FED_N", 5000); -+ } - } - - // Helper method to get the right order book -@@ -159,7 +181,21 @@ - .toList(); - } - -+ public void cancelAllOrdersForUser(String userId, String instrument) { -+ OrderBook book = orderBooks.get(instrument); -+ if(book==null){ -+ return; -+ } -+ book.getBids().values().forEach(list-> -+ list.removeIf(order -> order.getUserId().equals(userId))); -+ book.getBids().entrySet().removeIf(entry -> entry.getValue().isEmpty()); - -+ // Remove from Asks (Sell orders) -+ book.getAsks().values().forEach(list -> -+ list.removeIf(order -> order.getUserId().equals(userId)) -+ ); -+ book.getAsks().entrySet().removeIf(entry -> entry.getValue().isEmpty()); -+ } - /** - * Creates a full snapshot of the book. - */ -@@ -172,6 +208,18 @@ - .build(); - } - -+ public List clearBook(String instrument){ -+ OrderBook book = orderBooks.get(instrument); -+ List unfulfilled = new ArrayList<>(); -+ if(book!=null){ -+ book.getBids().values().forEach(list -> unfulfilled.addAll(list)); -+ book.getAsks().values().forEach(list -> unfulfilled.addAll(list)); -+ orderBooks.remove(instrument); -+ -+ }return unfulfilled; -+ -+ } -+ - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - for (Map.Entry entry : orderBooks.entrySet()) { -Index: matching-engine/src/main/java/org/example/matching/api/service/OrderService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.api.service;\n\nimport lombok.RequiredArgsConstructor;\nimport org.example.matching.Wallets.RiskManager;\nimport org.example.matching.Wallets.WalletService;\nimport org.example.matching.api.dto.OrderMapper;\nimport org.example.matching.api.dto.OrderRequest;\nimport org.example.matching.api.dto.OrderResponse;\nimport org.example.matching.journal.EventJournal;\nimport org.example.matching.matching.MatchingEngine;\nimport org.example.matching.model.Order;\nimport org.example.matching.model.Trade;\nimport org.example.matching.orderbook.OrderRepository;\nimport org.springframework.stereotype.Service;\n\nimport java.util.List;\nimport java.util.Map;\nimport java.util.concurrent.ConcurrentHashMap;\n\n@Service\n@RequiredArgsConstructor\npublic class OrderService {\n\n private final MarketDataService marketDataService;\n private final RiskManager riskManager;\n private final MatchingEngine matchingEngine;\n private final WalletService walletService;\n private final EventJournal eventJournal;\n private final OrderRepository orderRepository;\n\n // In-memory idempotency store: Key -> Previous Response\n private final Map idempotencyStore = new ConcurrentHashMap<>();\n\n public OrderResponse processOrder(OrderRequest request) {\n if (idempotencyStore.containsKey(request.getIdempotencyKey())) {\n return idempotencyStore.get(request.getIdempotencyKey());\n }\n \n Order order = OrderMapper.toDomain(request);\n \n if (!riskManager.checkAndReserve(order)) {\n return buildResponse(order, \"REJECTED\", \"Insufficient funds or shares\");\n }\n\n orderRepository.save(order);\n eventJournal.appendRaw(\"ORDER_PLACED: \" + order.getId());\n\n // Matching Engine execution\n List trades = matchingEngine.placeOrder(order);\n\n for (Trade trade : trades) {\n // so once trade is done manage the cash and shares of the users using their ids and stuff in walletService below\n walletService.settleTrade(trade);\n marketDataService.UpdateTrade(order.getInstrument(),trade.getPrice(),trade.getQuantity());\n eventJournal.appendRaw(\"TRADE_SETTLED: \" + trade.getBuyOrderId() + \" <-> \" + trade.getSellOrderId());\n }\n var book = matchingEngine.getOrderBookForMarketData(order.getInstrument());\n marketDataService.updateBookTops(\n order.getInstrument(),\n book.getBestBid(),\n book.getBestAsk()\n );\n\n OrderResponse response = buildResponse(order, \"ACCEPTED\", \"Success\");\n idempotencyStore.put(request.getIdempotencyKey(), response);\n return response;\n }\n \n private OrderResponse buildResponse(Order order, String status, String msg) {\n return OrderResponse.builder()\n .orderId(order.getId())\n .status(status)\n .message(msg)\n .timestamp(System.currentTimeMillis())\n .build();\n }\n}\n\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java b/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java ---- a/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java -+++ b/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java -@@ -11,6 +11,7 @@ - import org.example.matching.model.Order; - import org.example.matching.model.Trade; - import org.example.matching.orderbook.OrderRepository; -+import org.springframework.context.annotation.Lazy; - import org.springframework.stereotype.Service; - - import java.util.List; -@@ -18,7 +19,6 @@ - import java.util.concurrent.ConcurrentHashMap; - - @Service --@RequiredArgsConstructor - public class OrderService { - - private final MarketDataService marketDataService; -@@ -27,6 +27,23 @@ - private final WalletService walletService; - private final EventJournal eventJournal; - private final OrderRepository orderRepository; -+ private final LiquidBotService liquidBotService; -+ -+ public OrderService(MarketDataService marketDataService, -+ RiskManager riskManager, -+ MatchingEngine matchingEngine, -+ WalletService walletService, -+ EventJournal eventJournal, -+ OrderRepository orderRepository, -+ @Lazy LiquidBotService liquidBotService) { -+ this.marketDataService = marketDataService; -+ this.riskManager = riskManager; -+ this.matchingEngine = matchingEngine; -+ this.walletService = walletService; -+ this.eventJournal = eventJournal; -+ this.orderRepository = orderRepository; -+ this.liquidBotService = liquidBotService; -+ } - - // In-memory idempotency store: Key -> Previous Response - private final Map idempotencyStore = new ConcurrentHashMap<>(); -@@ -54,12 +71,9 @@ - marketDataService.UpdateTrade(order.getInstrument(),trade.getPrice(),trade.getQuantity()); - eventJournal.appendRaw("TRADE_SETTLED: " + trade.getBuyOrderId() + " <-> " + trade.getSellOrderId()); - } -- var book = matchingEngine.getOrderBookForMarketData(order.getInstrument()); -- marketDataService.updateBookTops( -- order.getInstrument(), -- book.getBestBid(), -- book.getBestAsk() -- ); -+ if(!order.getUserId().equals("HOUSE_BOT")){ -+ liquidBotService.updateMarketTrigger(order.getInstrument()); -+ } - - OrderResponse response = buildResponse(order, "ACCEPTED", "Success"); - idempotencyStore.put(request.getIdempotencyKey(), response); -Index: matching-engine/src/main/java/org/example/matching/model/Reservation.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.model;\n\nimport lombok.AllArgsConstructor;\nimport lombok.Getter;\nimport lombok.Setter;\n\n@Getter @Setter @AllArgsConstructor\npublic class Reservation {\n private final String OrderId;\n private final String userId;\n private final long priceatReserve;\n private int remainingQty;\n private String instrument; // Add instrument field\n\n private long reservedCash;\n private long reservedShares;\n private final Boolean isBuy;\n\n public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy) {\n OrderId = orderId;\n this.userId = userId;\n this.priceatReserve = priceatReserve;\n this.remainingQty = remainingQty;\n this.isBuy = isBuy;\n this.instrument = \"MARKET\"; // Default instrument\n }\n\n public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy, String instrument) {\n OrderId = orderId;\n this.userId = userId;\n this.priceatReserve = priceatReserve;\n this.remainingQty = remainingQty;\n this.isBuy = isBuy;\n this.instrument = instrument != null ? instrument : \"MARKET\";\n }\n\n public long reduceBy(int qty) {\n if (qty <= 0 || remainingQty <= 0) {\n return 0;\n }\n\n // Don't consume more than what is left in this specific reservation\n int consumed = Math.min(qty, remainingQty);\n long cashUsed =0;\n if (isBuy) {\n // Calculate how much cash was 'used' for this portion of the trade\n cashUsed = (long) consumed * priceatReserve;\n\n // Subtract the used cash from the total reserved cash\n this.reservedCash -= cashUsed;\n\n if (this.reservedCash < 0) this.reservedCash = 0;\n } else {\n // For a sell order, we just reduce the count of shares held\n this.reservedShares -= consumed;\n\n if (this.reservedShares < 0) this.reservedShares = 0;\n }\n\n // Finally, reduce the quantity so we know how much of the order is left to fill\n this.remainingQty -= consumed;\n return cashUsed;\n }\n\n // Additional getters needed by the codebase\n public String getOrderId() {\n return OrderId;\n }\n\n public String getUserId() {\n return userId;\n }\n\n public Boolean getIsBuy() {\n return isBuy;\n }\n\n public long getReservedCash() {\n return reservedCash;\n }\n\n public long getReservedShares() {\n return reservedShares;\n }\n\n public int getRemainingQty() {\n return remainingQty;\n }\n\n public void setReservedCash(long reservedCash) {\n this.reservedCash = reservedCash;\n }\n\n public void setReservedShares(long reservedShares) {\n this.reservedShares = reservedShares;\n }\n} -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/model/Reservation.java b/matching-engine/src/main/java/org/example/matching/model/Reservation.java ---- a/matching-engine/src/main/java/org/example/matching/model/Reservation.java -+++ b/matching-engine/src/main/java/org/example/matching/model/Reservation.java -@@ -59,7 +59,9 @@ - - // Finally, reduce the quantity so we know how much of the order is left to fill - this.remainingQty -= consumed; -- return cashUsed; -+ -+ // Return the actual quantity consumed for settlement calculations -+ return consumed; - } - - // Additional getters needed by the codebase -Index: matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.Wallets;\n\nimport org.example.matching.model.Order;\nimport org.example.matching.model.Trade;\nimport org.example.matching.model.Wallet;\n\npublic interface WalletService {\n boolean reserveForOrder(Order order);\n void releaseReservation(String orderId);\n void settleTrade(Trade trade);\n \n // Additional methods needed for testing and API\n void creditUserShares(String userId, long shares);\n void creditUserShares(String userId, String instrument, long shares);\n void creditUserCash(String userId, long cash);\n Wallet getWallet(String userId);\n}\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java b/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java ---- a/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java -+++ b/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java -@@ -1,14 +1,17 @@ - package org.example.matching.Wallets; - -+import lombok.RequiredArgsConstructor; - import org.example.matching.model.Order; - import org.example.matching.model.Trade; - import org.example.matching.model.Wallet; - -+ - public interface WalletService { - boolean reserveForOrder(Order order); - void releaseReservation(String orderId); - void settleTrade(Trade trade); -- -+ -+ java.util.Collection getAllWallets(); - // Additional methods needed for testing and API - void creditUserShares(String userId, long shares); - void creditUserShares(String userId, String instrument, long shares); -Index: matching-engine/journals/engine.log -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>ORDER c78afcd8-aa27-4770-866b-840efa1dcad2 seller1 SELL 100 10 1772752218574\nORDER 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 buyer1 BUY 105 4 1772752218582\nTRADE 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 c78afcd8-aa27-4770-866b-840efa1dcad2 100 4 1772752218582\nORDER 2c267f3a-4da6-4060-bb5b-de3fa97f6029 buyer2 BUY 100 6 1772752218583\nTRADE 2c267f3a-4da6-4060-bb5b-de3fa97f6029 c78afcd8-aa27-4770-866b-840efa1dcad2 100 6 1772752218583\nORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10\nORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10 1772752218586\nORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4\nORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4 1772752218586\nTRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4 1772752218586\nTRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4\nORDER a8eaddb2-4f1f-4df0-a28b-c365b37c6911 buyer1 BUY 100 6\nORDER 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BUY 100 6 1772760358817\nORDER 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 seller1 SELL 100 10 1772760473119\nORDER 05f435ca-b3b9-4288-a979-062eef0f5e06 buyer1 BUY 105 4 1772760473125\nTRADE 05f435ca-b3b9-4288-a979-062eef0f5e06 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 4 1772760473125\nORDER ce8d19be-00e6-4e0b-8056-2f468e5d540a buyer2 BUY 100 6 1772760473126\nTRADE ce8d19be-00e6-4e0b-8056-2f468e5d540a 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 6 1772760473126\nREJECT debaf786-7218-4204-9bed-55e5d79c5e16 INSUFFICIENT_FUNDS\nORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4\nORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4 1772760473129\nORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6\nORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6 1772760473129\nORDER_PLACED: e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4\nORDER e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 user-seller SELL 100 10 1772760703367\nORDER_PLACED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466\nORDER cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 user1 BUY 100 10 1772760707390\nTRADE cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 100 10 1772760707390\nTRADE_SETTLED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 <-> e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4\nORDER_PLACED: e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c\nORDER e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c user-seller SELL 150 10 1772761274302\nORDER_PLACED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788\nORDER aa3558d9-7e18-41d7-b6e5-00e3e0c69788 user1 BUY 151 10 1772761274334\nTRADE aa3558d9-7e18-41d7-b6e5-00e3e0c69788 e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c 150 10 1772761274335\nTRADE_SETTLED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788 <-> e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c\nORDER_PLACED: 89a0af09-0b11-467d-ba14-c015ea52007c\nORDER 89a0af09-0b11-467d-ba14-c015ea52007c user-seller SELL 150 10 1772837899360\nORDER_PLACED: 14e62193-7644-460c-bc0e-e6f9f9eb8ff9\nORDER 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 user1 BUY 151 10 1772837899385\nTRADE 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9a5a6c33-1739-492d-a015-10dcab579f98 HOUSE_BOT SELL 73 500 1773097238577 -+ORDER_PLACED: d93482b3-d7e2-4ef9-80ab-2e4c864d7bc7 -+ORDER d93482b3-d7e2-4ef9-80ab-2e4c864d7bc7 trader3 BUY 31 5 1773097257718 -+TRADE d93482b3-d7e2-4ef9-80ab-2e4c864d7bc7 f2aea2bf-178d-4b70-85ec-fe77c9e7c803 31 5 1773097257719 -+TRADE_SETTLED: d93482b3-d7e2-4ef9-80ab-2e4c864d7bc7 <-> f2aea2bf-178d-4b70-85ec-fe77c9e7c803 -+ORDER_PLACED: 89daff4d-0302-4121-90ca-af6451639436 -+ORDER 89daff4d-0302-4121-90ca-af6451639436 HOUSE_BOT BUY 27 500 1773097257720 -+ORDER_PLACED: a35298b1-c5f1-49f0-aca3-5c0f929a3741 -+ORDER a35298b1-c5f1-49f0-aca3-5c0f929a3741 HOUSE_BOT SELL 31 500 1773097257720 -+ORDER_PLACED: 5a792477-a3c9-4271-883a-dd34999b15d3 -+ORDER 5a792477-a3c9-4271-883a-dd34999b15d3 HOUSE_BOT BUY 69 500 1773097257721 -+ORDER_PLACED: 15fb0266-4e4c-441e-a52b-9a875cb2e5df -+ORDER 15fb0266-4e4c-441e-a52b-9a875cb2e5df HOUSE_BOT SELL 73 500 1773097257721 -+ORDER_PLACED: 98914de0-d7cb-4282-ba23-8fc6ecb363e6 -+ORDER 98914de0-d7cb-4282-ba23-8fc6ecb363e6 HOUSE_BOT BUY 26 500 1773097277308 -+ORDER_PLACED: a89eaea0-5d24-4fd3-8fb0-5481b196e692 -+ORDER a89eaea0-5d24-4fd3-8fb0-5481b196e692 HOUSE_BOT SELL 30 500 1773097277309 -+ORDER_PLACED: d0931ea4-cdb0-4fea-98e1-dad289b43e3d -+ORDER d0931ea4-cdb0-4fea-98e1-dad289b43e3d HOUSE_BOT BUY 70 500 1773097277309 -+ORDER_PLACED: 80ee5962-8239-48ee-8b62-3a44daadbc65 -+ORDER 80ee5962-8239-48ee-8b62-3a44daadbc65 HOUSE_BOT SELL 74 500 1773097277309 -+ORDER_PLACED: b75546e7-a3cd-4f02-a9e8-bdb713f9d3f4 -+ORDER b75546e7-a3cd-4f02-a9e8-bdb713f9d3f4 fresh-trader BUY 30 10 1773097300339 -+TRADE b75546e7-a3cd-4f02-a9e8-bdb713f9d3f4 a89eaea0-5d24-4fd3-8fb0-5481b196e692 30 10 1773097300340 -+TRADE_SETTLED: b75546e7-a3cd-4f02-a9e8-bdb713f9d3f4 <-> a89eaea0-5d24-4fd3-8fb0-5481b196e692 -+ORDER_PLACED: 9972ac7c-6a34-4bb0-92c2-614c0d39b9b1 -+ORDER 9972ac7c-6a34-4bb0-92c2-614c0d39b9b1 HOUSE_BOT BUY 27 500 1773097300342 -+ORDER_PLACED: 976557fc-f09a-4b6f-aec8-8c916a54ffe7 -+ORDER 976557fc-f09a-4b6f-aec8-8c916a54ffe7 HOUSE_BOT SELL 31 500 1773097300342 -+ORDER_PLACED: ea73dbbf-a9a3-45d7-8a69-165e7d97b0a2 -+ORDER ea73dbbf-a9a3-45d7-8a69-165e7d97b0a2 HOUSE_BOT BUY 69 500 1773097300343 -+ORDER_PLACED: 9f33a6c3-863d-4486-97a5-bf3e7e391ffe -+ORDER 9f33a6c3-863d-4486-97a5-bf3e7e391ffe HOUSE_BOT SELL 73 500 1773097300343 -+ORDER_PLACED: 3059b475-e0a5-471e-bcfc-a6962d673eb3 -+ORDER 3059b475-e0a5-471e-bcfc-a6962d673eb3 HOUSE_BOT BUY 26 500 1773097341383 -+ORDER_PLACED: 30269f8e-f66b-47d3-a8a6-036c04d6f975 -+ORDER 30269f8e-f66b-47d3-a8a6-036c04d6f975 HOUSE_BOT SELL 30 500 1773097341384 -+ORDER_PLACED: 6d2a3d9d-0d7d-4604-8337-09d6f475cd76 -+ORDER 6d2a3d9d-0d7d-4604-8337-09d6f475cd76 HOUSE_BOT BUY 70 500 1773097341384 -+ORDER_PLACED: 63fb6a37-e2bd-4ae6-bc8e-5497acd347f6 -+ORDER 63fb6a37-e2bd-4ae6-bc8e-5497acd347f6 HOUSE_BOT SELL 74 500 1773097341385 -+ORDER_PLACED: 105c8737-bdfb-4cea-9118-11f1258df96e -+ORDER 105c8737-bdfb-4cea-9118-11f1258df96e final-trader BUY 30 5 1773097348388 -+TRADE 105c8737-bdfb-4cea-9118-11f1258df96e 30269f8e-f66b-47d3-a8a6-036c04d6f975 30 5 1773097348389 -+TRADE_SETTLED: 105c8737-bdfb-4cea-9118-11f1258df96e <-> 30269f8e-f66b-47d3-a8a6-036c04d6f975 -+ORDER_PLACED: 773eb336-5d94-4a05-9669-3ffe58262feb -+ORDER 773eb336-5d94-4a05-9669-3ffe58262feb HOUSE_BOT BUY 27 500 1773097348392 -+ORDER_PLACED: 283b2488-c7b9-4700-ab24-5ea9c5d2f2d6 -+ORDER 283b2488-c7b9-4700-ab24-5ea9c5d2f2d6 HOUSE_BOT SELL 31 500 1773097348393 -+ORDER_PLACED: 54bfc35d-578c-4110-bfe2-5624cd00b09f -+ORDER 54bfc35d-578c-4110-bfe2-5624cd00b09f HOUSE_BOT BUY 69 500 1773097348393 -+ORDER_PLACED: b12ad53a-4864-452b-91d5-192272814f26 -+ORDER b12ad53a-4864-452b-91d5-192272814f26 HOUSE_BOT SELL 73 500 1773097348393 -Index: matching-engine/OrderFlow -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>The \"Order of Operations\" [Step by Step flow]\nFor a trade to settle successfully, the order must be \"registered\" in the repository before the matching happens. Here is the correct sequence:\n\nThe Request: Postman sends a \"BUY AAPL\" request.\n\nThe Check: RiskManager checks the Wallet to make sure the user has enough cash.\n\nThe Registration (CRITICAL): You call orderRepository.save(order). Now the system \"knows\" this order ID belongs to \"User1\".\n\nThe Matching Engine: The order goes into the OrderBook algorithm.\n\nThe Match: The algorithm finds a \"SELL AAPL\" order that was already in the repo. It generates a Trade.\n\nThe Settlement: The settleTrade method takes that Trade and asks the Repo: \"Who owns the orders in this trade?\"\n\nThe Hand-off: Because you did Step 3, the Repo says: \"Order A belongs to User1, and Order B belongs to User2.\"\n\nThe Bank: The WalletService finally moves the money and shares.\n\n\n\n---- Trade in it -----\n[OrderBook receives the whole Order object, but inside the Matching Algorithm, it ignores the userId entirely. It only looks at:\n\n Price: To see if the buyer and seller can agree.\n\n Quantity: To see how much can be traded.\n\n Timestamp: To decide who was first in line (Price-Time Priority).]\n\n\n\n When the Matching Engine finishes, it creates a Trade object. That trade object looks like this:\n\n buyOrderId: \"abc-123\"\n\n sellOrderId: \"xyz-789\"\n\n price: 150\n\n quantity: 10\n\n When this trade is sent to Settlement, the first thing the code does is:\n orderRepository.findById(\"abc-123\")\n\n\n\n\n -=================================================================== -diff --git a/matching-engine/OrderFlow b/matching-engine/OrderFlow ---- a/matching-engine/OrderFlow -+++ b/matching-engine/OrderFlow -@@ -46,3 +46,11 @@ - - - -+----- -+Pice ed -+ -+1. What you have vs. What Kalshi -+hasFeature Your Current MarketDataService Kalshi / Prediction Market Logic -+Price OriginUser-to-User trades only. Automated Liquidity (The Bot). -+Logic Calculates VWAP and Spread. Ensures Price(YES) + Price(NO) ≈ 100¢. -+RoleReporting (Show what happened). Price Discovery (Setting the "Fair" price). -\ No newline at end of file -Index: matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.config;\n\nimport org.example.matching.Wallets.InMemoryWalletService;\nimport org.example.matching.Wallets.RiskManager;\nimport org.example.matching.Wallets.WalletService;\nimport org.example.matching.journal.EventJournal;\nimport org.example.matching.matching.MatchingEngine;\nimport org.example.matching.orderbook.InMemoryOrderRepository;\nimport org.example.matching.orderbook.OrderRepository;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n@Configuration\npublic class MatchingEngineConfig {\n\n @Bean\n public EventJournal eventJournal() {\n return new EventJournal();\n }\n\n @Bean\n public OrderRepository orderRepository() {\n return new InMemoryOrderRepository();\n }\n\n @Bean\n public WalletService walletService(OrderRepository orderRepository) {\n return new InMemoryWalletService(orderRepository);\n }\n\n @Bean\n public RiskManager riskManager(WalletService walletService, OrderRepository orderRepository) {\n return new RiskManager(walletService, orderRepository);\n }\n\n @Bean\n public MatchingEngine matchingEngine(EventJournal eventJournal) {\n return new MatchingEngine();\n }\n}\n -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java b/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java ---- a/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java -+++ b/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java -@@ -34,7 +34,7 @@ - } - - @Bean -- public MatchingEngine matchingEngine(EventJournal eventJournal) { -- return new MatchingEngine(); -+ public MatchingEngine matchingEngine(WalletService walletService, EventJournal eventJournal) { -+ return new MatchingEngine(walletService, eventJournal); - } - } -Index: matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.Wallets;\n\nimport lombok.RequiredArgsConstructor;\nimport org.example.matching.model.Order;\nimport org.example.matching.model.Reservation;\nimport org.example.matching.model.Trade;\nimport org.example.matching.model.Wallet;\nimport org.example.matching.orderbook.OrderRepository;\nimport org.springframework.stereotype.Service; // Add this import\n\nimport java.util.Map;\nimport java.util.concurrent.ConcurrentHashMap;\n\n@Service // Tells Spring this is a managed bean\npublic class InMemoryWalletService implements WalletService {\n\n private final Map wallets = new ConcurrentHashMap<>();\n private final Map reservations = new ConcurrentHashMap<>();\n private final OrderRepository orderRepository;\n private final String INSTRUMENT = \"MARKET\";\n\n // No-arg constructor for Main.java usage\n public InMemoryWalletService() {\n this.orderRepository = null;\n }\n\n // Constructor for dependency injection\n public InMemoryWalletService(OrderRepository orderRepository) {\n this.orderRepository = orderRepository;\n }\n\n private Wallet ensureWallet(String userId) {\n return wallets.computeIfAbsent(userId, k -> new Wallet(userId));\n }\n\n @Override\n public boolean reserveForOrder(Order order) {\n String userId = order.getUserId();\n String instrument = order.getInstrument();\n Wallet w = ensureWallet(userId);\n\n if (order.getSide().name().equals(\"BUY\")) {\n long required = order.getPrice() * (long) order.getQuantity();\n if (!w.tryReserveCash(required)) return false;\n\n Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), true, instrument);\n r.setReservedCash(required);\n reservations.put(order.getId(), r);\n } else {\n if (!w.tryReserveShares(instrument, order.getQuantity())) return false;\n\n Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), false, instrument);\n r.setReservedShares(order.getQuantity());\n reservations.put(order.getId(), r);\n }\n return true;\n }\n\n\n@Override\npublic void releaseReservation(String orderId){\n Reservation r = reservations.remove(orderId);\n if(r==null)return;\n Wallet w = ensureWallet(r.getUserId());\n if(r.getIsBuy()){\n w.releaseReserveCash(r.getReservedCash());\n\n }else{\n w.releaseReservedShares(r.getInstrument(),r.getReservedShares());\n\n }\n }\n\n @Override\n public void creditUserShares(String userId, long shares) {\n Wallet w = ensureWallet(userId);\n w.addAvailableShares(INSTRUMENT, shares);\n }\n\n @Override\n public void creditUserShares(String userId, String instrument, long shares) {\n Wallet w = ensureWallet(userId);\n w.addAvailableShares(instrument, shares);\n }\n\n @Override\n public void creditUserCash(String userId, long cash) {\n Wallet w = ensureWallet(userId);\n w.addAvailableCash(cash);\n }\n\n @Override\n public Wallet getWallet(String userId) {\n return wallets.get(userId);\n }\n\n @Override\n public void settleTrade(Trade trade) {\n Order buy = orderRepository.findById(trade.getBuyOrderId()).orElse(null);\n Order sell = orderRepository.findById(trade.getSellOrderId()).orElse(null);\n\n if (buy == null || sell == null) return;\n\n Wallet buyerWallet = ensureWallet(buy.getUserId());\n Wallet sellerWallet = ensureWallet(sell.getUserId());\n Reservation buyRes = reservations.get(buy.getId());\n Reservation sellRes = reservations.get(sell.getId());\n\n int qty = (int) trade.getQuantity();\n long tradeValue = trade.getPrice() * (long) qty;\n String instrument = buy.getInstrument();\n // Process Buy Side\n if (buyRes != null) {\n long cashtoDebitFromReserved = buyRes.reduceBy(qty);\n buyerWallet.debitReservedCash(cashtoDebitFromReserved);\n\n long refund = cashtoDebitFromReserved - tradeValue;\n if (refund > 0) buyerWallet.addAvailableCash(refund);\n\n buyerWallet.addAvailableShares(instrument, qty);\n }\n\n // Process Sell Side\n if (sellRes != null) {\n sellRes.reduceBy(qty);\n sellerWallet.debitReservedShares(instrument, (long) qty);\n sellerWallet.addAvailableCash(tradeValue);\n }\n\n // Cleanup completed reservations\n if (buyRes != null && buyRes.getRemainingQty() == 0) {\n reservations.remove(buy.getId());\n }\n if (sellRes != null && sellRes.getRemainingQty() == 0) {\n reservations.remove(sell.getId());\n }\n }\n} -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java b/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java ---- a/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java -+++ b/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java -@@ -8,6 +8,7 @@ - import org.example.matching.orderbook.OrderRepository; - import org.springframework.stereotype.Service; // Add this import - -+import java.util.Collection; - import java.util.Map; - import java.util.concurrent.ConcurrentHashMap; - -@@ -93,6 +94,10 @@ - public Wallet getWallet(String userId) { - return wallets.get(userId); - } -+ @Override -+ public Collection getAllWallets() { -+ return wallets.values(); -+ } - - @Override - public void settleTrade(Trade trade) { -Index: matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Trade.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderBook.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Wallet.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/Main.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Order.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Reservation.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Replay.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderSide.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java\n/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java\n -=================================================================== -diff --git a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst ---- a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst -+++ b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst -@@ -3,17 +3,22 @@ - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Trade.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderBook.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Wallet.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/EventStatus.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java -@@ -27,6 +32,8 @@ - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java -+/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Replay.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java - /Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderSide.java -Index: journals/engine.log -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>ORDER 555a6afb-fb3e-41c5-9544-cdbc96ed4fa2 seller1 SELL 100 10 1771557534336\nORDER c5077dcb-c587-4543-9c0b-3da1589504a8 buyer1 BUY 105 4 1771557534365\nTRADE c5077dcb-c587-4543-9c0b-3da1589504a8 555a6afb-fb3e-41c5-9544-cdbc96ed4fa2 100 4 1771557534365\nORDER f4b788e6-632c-48c1-9eff-30880619b16d buyer2 BUY 100 6 1771557534365\nTRADE f4b788e6-632c-48c1-9eff-30880619b16d 555a6afb-fb3e-41c5-9544-cdbc96ed4fa2 100 6 1771557534366\nORDER 729e42d0-bf4a-4dbd-a666-3adb0fd9c136 seller1 SELL 100 10 1772083565558\nORDER c64a2e5d-1e54-4568-bee3-990fe3cde36b buyer1 BUY 105 4 1772083565592\nTRADE c64a2e5d-1e54-4568-bee3-990fe3cde36b 729e42d0-bf4a-4dbd-a666-3adb0fd9c136 100 4 1772083565592\nORDER 92220288-5c9e-4a1a-9a10-88d14f297953 buyer2 BUY 100 6 1772083565593\nTRADE 92220288-5c9e-4a1a-9a10-88d14f297953 729e42d0-bf4a-4dbd-a666-3adb0fd9c136 100 6 1772083565593\nORDER 9e2a8036-019a-48e2-a22a-f3e2bf1dd1cc seller1 SELL 100 10\nORDER 9e2a8036-019a-48e2-a22a-f3e2bf1dd1cc seller1 SELL 100 10 1772083565594\nORDER 278fdfd7-6893-4d50-923a-0a694dca0884 buyer1 BUY 105 4\nORDER 278fdfd7-6893-4d50-923a-0a694dca0884 buyer1 BUY 105 4 1772083565594\nTRADE 278fdfd7-6893-4d50-923a-0a694dca0884 9e2a8036-019a-48e2-a22a-f3e2bf1dd1cc 100 4 1772083565594\nTRADE 278fdfd7-6893-4d50-923a-0a694dca0884 9e2a8036-019a-48e2-a22a-f3e2bf1dd1cc 100 4\nORDER 02956e10-2d87-4a95-93e1-5c9de14c0d0b buyer1 BUY 100 6\nORDER 02956e10-2d87-4a95-93e1-5c9de14c0d0b buyer1 BUY 100 6 1772083565594\nTRADE 02956e10-2d87-4a95-93e1-5c9de14c0d0b 9e2a8036-019a-48e2-a22a-f3e2bf1dd1cc 100 6 1772083565595\nTRADE 02956e10-2d87-4a95-93e1-5c9de14c0d0b 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1772755348807\nORDER_PLACED: 4cef0377-341d-4b13-8856-f44b1ad24656\nORDER 4cef0377-341d-4b13-8856-f44b1ad24656 user-seller SELL 150 10 1772756125478\nORDER_PLACED: 44655cad-3469-4cfb-899c-c1dacd78ccda\nORDER 44655cad-3469-4cfb-899c-c1dacd78ccda user1 BUY 100 10 1772756456024\nORDER_PLACED: a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b\nORDER a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b user-seller SELL 150 10 1772759912084\nORDER_PLACED: a1d913c4-317e-4f88-9c2e-05c2d422d7bb\nORDER a1d913c4-317e-4f88-9c2e-05c2d422d7bb user1 BUY 100 10 1772759987885\nORDER_PLACED: 3db5fb8c-f24b-4674-8a4b-cbadc7fede32\nORDER 3db5fb8c-f24b-4674-8a4b-cbadc7fede32 user-seller SELL 150 10 1772760831791\nORDER_PLACED: 562de0cc-8ba3-4264-8158-98904cbce14d\nORDER 562de0cc-8ba3-4264-8158-98904cbce14d user1 BUY 100 10 1772760849537\nORDER_PLACED: 9320ee7a-9fef-4449-bf80-f2c2ef83cc88\nORDER 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 user-seller SELL 150 10 1772761342572\nORDER_PLACED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f\nORDER b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f user1 BUY 151 10 1772761362103\nTRADE b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 150 10 1772761362107\nTRADE_SETTLED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f <-> 9320ee7a-9fef-4449-bf80-f2c2ef83cc88\n -=================================================================== -diff --git a/journals/engine.log b/journals/engine.log ---- a/journals/engine.log -+++ b/journals/engine.log -@@ -85,3 +85,45 @@ - ORDER b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f user1 BUY 151 10 1772761362103 - TRADE b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 150 10 1772761362107 - TRADE_SETTLED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f <-> 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 -+ORDER_PLACED: a739b58c-1b61-481a-bbda-d32961c6bee7 -+ORDER a739b58c-1b61-481a-bbda-d32961c6bee7 user_1 BUY 70 10 1772929548693 -+ORDER_PLACED: 5bc417f4-bafc-4515-87d8-6ff10f310edb -+ORDER 5bc417f4-bafc-4515-87d8-6ff10f310edb user_1 BUY 70 10 1772930035271 -+ORDER_PLACED: 00740b55-39bc-47c7-b210-049ff138ff88 -+ORDER 00740b55-39bc-47c7-b210-049ff138ff88 USER_A BUY 60 10 1773016937098 -+ORDER_PLACED: 7e7fcd36-dfd2-46d2-84f3-0759ec1722c2 -+ORDER 7e7fcd36-dfd2-46d2-84f3-0759ec1722c2 HOUSE_BOT BUY 26 500 1773098676011 -+ORDER_PLACED: 49bd0b23-73e6-4bb2-a04c-788b0d27a61b -+ORDER 49bd0b23-73e6-4bb2-a04c-788b0d27a61b HOUSE_BOT SELL 30 500 1773098676033 -+ORDER_PLACED: 0b21f612-5b80-468c-a261-5f92cc509c7f -+ORDER 0b21f612-5b80-468c-a261-5f92cc509c7f HOUSE_BOT BUY 70 500 1773098676038 -+ORDER_PLACED: bebf1c67-fd3c-4d66-9ef0-275cdd5b2391 -+ORDER bebf1c67-fd3c-4d66-9ef0-275cdd5b2391 HOUSE_BOT SELL 74 500 1773098676038 -+ORDER_PLACED: 2e1f64a8-c0cd-4999-8a7b-99dbe3485bec -+ORDER 2e1f64a8-c0cd-4999-8a7b-99dbe3485bec HOUSE_BOT BUY 26 500 1773098788582 -+ORDER_PLACED: 337504bc-fae7-422a-8718-9f12a60b9c86 -+ORDER 337504bc-fae7-422a-8718-9f12a60b9c86 HOUSE_BOT SELL 30 500 1773098788584 -+ORDER_PLACED: 2ceb4d50-197f-4740-9ca2-6993a13f601c -+ORDER 2ceb4d50-197f-4740-9ca2-6993a13f601c HOUSE_BOT BUY 70 500 1773098788584 -+ORDER_PLACED: d456036f-200d-422c-9d23-adfb020b6bf3 -+ORDER d456036f-200d-422c-9d23-adfb020b6bf3 HOUSE_BOT SELL 74 500 1773098788584 -+ORDER_PLACED: f88fb1b7-a716-411c-9ac8-9cda420c12dd -+ORDER f88fb1b7-a716-411c-9ac8-9cda420c12dd HOUSE_BOT BUY 26 500 1773099262674 -+ORDER_PLACED: 6a9e9b62-c69b-441d-b48d-d679023a5a05 -+ORDER 6a9e9b62-c69b-441d-b48d-d679023a5a05 HOUSE_BOT SELL 30 500 1773099262677 -+ORDER_PLACED: 6cc5ecdc-6538-433f-8bd8-fb8e69f5f3ba -+ORDER 6cc5ecdc-6538-433f-8bd8-fb8e69f5f3ba HOUSE_BOT BUY 70 500 1773099262677 -+ORDER_PLACED: 09a40c7c-7730-4a7d-af85-1be051cc62ad -+ORDER 09a40c7c-7730-4a7d-af85-1be051cc62ad HOUSE_BOT SELL 74 500 1773099262677 -+ORDER_PLACED: a13e5263-410d-4fdf-bfcc-be134a8e502a -+ORDER a13e5263-410d-4fdf-bfcc-be134a8e502a trader1 BUY 30 10 1773099371840 -+TRADE a13e5263-410d-4fdf-bfcc-be134a8e502a 6a9e9b62-c69b-441d-b48d-d679023a5a05 30 10 1773099371841 -+TRADE_SETTLED: a13e5263-410d-4fdf-bfcc-be134a8e502a <-> 6a9e9b62-c69b-441d-b48d-d679023a5a05 -+ORDER_PLACED: db7dd415-686b-4ede-acc6-6a11e42d22f0 -+ORDER db7dd415-686b-4ede-acc6-6a11e42d22f0 HOUSE_BOT BUY 27 500 1773099371844 -+ORDER_PLACED: 585695d4-f70c-4e10-a01b-0f915f3931a2 -+ORDER 585695d4-f70c-4e10-a01b-0f915f3931a2 HOUSE_BOT SELL 31 500 1773099371844 -+ORDER_PLACED: 2dbeef1a-6788-42a0-ac73-08daa5029908 -+ORDER 2dbeef1a-6788-42a0-ac73-08daa5029908 HOUSE_BOT BUY 69 500 1773099371844 -+ORDER_PLACED: cd48551d-9285-4e3a-8691-17d6dcebb4f0 -+ORDER cd48551d-9285-4e3a-8691-17d6dcebb4f0 HOUSE_BOT SELL 73 500 1773099371844 -Index: matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>package org.example.matching.api.controller;\n\nimport lombok.RequiredArgsConstructor;\nimport org.example.matching.Wallets.WalletService;\nimport org.example.matching.api.dto.DepositRequest;\nimport org.example.matching.api.dto.WalletResponse;\nimport org.example.matching.model.Wallet;\nimport org.springframework.http.ResponseEntity;\nimport org.springframework.web.bind.annotation.*;\n\nimport java.util.Map;\nimport java.util.stream.Collectors;\n\n@RestController\n@RequestMapping(\"/api/wallets\")\n@RequiredArgsConstructor\npublic class WalletController {\n\n private final WalletService walletService;\n\n @GetMapping(\"/{userId}\")\n public ResponseEntity getWallet(@PathVariable String userId){\n Wallet wallet = walletService.getWallet(userId);\n\n // Convert AtomicLong maps to Long maps for JSON response\n Map availableShares = wallet.getAvailableShares().entrySet().stream()\n .collect(Collectors.toMap(\n Map.Entry::getKey,\n entry -> entry.getValue().get()\n ));\n\n Map reservedShares = wallet.getReservedShares().entrySet().stream()\n .collect(Collectors.toMap(\n Map.Entry::getKey,\n entry -> entry.getValue().get()\n ));\n\n WalletResponse response = WalletResponse.builder()\n .userId(userId)\n .availableCash(wallet.getAvailableCash())\n .reservedCash(wallet.getReservedCash())\n .availableShares(availableShares)\n .reservedShares(reservedShares)\n .build();\n return ResponseEntity.ok(response);\n }\n @PostMapping(\"/depositCash\")\n public ResponseEntity depositCash(@RequestBody DepositRequest request) {\n walletService.creditUserCash(request.getUserId(), request.getAmount());\n return ResponseEntity.ok(\"Deposit Successful\");\n }\n \n @PostMapping(\"/depositShares\")\n public ResponseEntity depositShares(@RequestBody DepositRequest request) {\n // Credit shares for the specific instrument\n walletService.creditUserShares(request.getUserId(), request.getInstrument(), request.getAmount());\n return ResponseEntity.ok(\"Shares Deposited Successfully\");\n }\n} -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java b/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java ---- a/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java -+++ b/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java -@@ -21,6 +21,18 @@ - @GetMapping("/{userId}") - public ResponseEntity getWallet(@PathVariable String userId){ - Wallet wallet = walletService.getWallet(userId); -+ -+ // Handle non-existent wallet -+ if (wallet == null) { -+ WalletResponse response = WalletResponse.builder() -+ .userId(userId) -+ .availableCash(0L) -+ .reservedCash(0L) -+ .availableShares(Map.of()) -+ .reservedShares(Map.of()) -+ .build(); -+ return ResponseEntity.ok(response); -+ } - - // Convert AtomicLong maps to Long maps for JSON response - Map availableShares = wallet.getAvailableShares().entrySet().stream() -Index: matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP -<+>org/example/matching/api/controller/MarketController.class\norg/example/Main.class\norg/example/matching/app/MatchingEngineApplication.class\norg/example/matching/model/Trade.class\norg/example/matching/model/OrderSide.class\norg/example/matching/api/dto/OrderResponse.class\norg/example/matching/journal/EventJournal.class\norg/example/matching/Wallets/WalletService.class\norg/example/matching/Wallets/InMemoryWalletService.class\norg/example/matching/model/Reservation.class\norg/example/matching/validation/OrderValidator.class\norg/example/matching/api/controller/OrderController.class\norg/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class\norg/example/matching/api/advice/ApiExceptionHandler.class\norg/example/matching/model/OrderBook.class\norg/example/matching/api/dto/WalletResponse$WalletResponseBuilder.class\norg/example/matching/orderbook/OrderOrchestrator.class\norg/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class\norg/example/matching/orderbook/InMemoryOrderRepository.class\norg/example/matching/matching/MatchingEngine.class\norg/example/matching/model/Order.class\norg/example/matching/api/dto/DepositRequest.class\norg/example/matching/api/dto/PriceLevel.class\norg/example/matching/api/dto/WalletResponse.class\norg/example/matching/Replay.class\norg/example/matching/util/IdGenerator.class\norg/example/matching/api/controller/WalletController.class\norg/example/matching/Wallets/RiskManager.class\norg/example/matching/api/dto/OrderMapper.class\norg/example/matching/api/dto/OrderBookResponse.class\norg/example/matching/api/dto/OrderRequest.class\norg/example/matching/config/MatchingEngineConfig.class\norg/example/matching/api/service/MarketDataService.class\norg/example/matching/orderbook/OrderRepository.class\norg/example/matching/MatchingEngineApplication.class\norg/example/matching/model/Wallet.class\norg/example/matching/api/service/OrderService.class\n -=================================================================== -diff --git a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst ---- a/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst -+++ b/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst -@@ -1,5 +1,6 @@ - org/example/matching/api/controller/MarketController.class - org/example/Main.class -+org/example/matching/api/service/MarketManagmentService.class - org/example/matching/app/MatchingEngineApplication.class - org/example/matching/model/Trade.class - org/example/matching/model/OrderSide.class -@@ -10,6 +11,7 @@ - org/example/matching/model/Reservation.class - org/example/matching/validation/OrderValidator.class - org/example/matching/api/controller/OrderController.class -+org/example/matching/api/controller/EventController.class - org/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class - org/example/matching/api/advice/ApiExceptionHandler.class - org/example/matching/model/OrderBook.class -@@ -18,6 +20,7 @@ - org/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class - org/example/matching/orderbook/InMemoryOrderRepository.class - org/example/matching/matching/MatchingEngine.class -+org/example/matching/api/dto/EventRequest.class - org/example/matching/model/Order.class - org/example/matching/api/dto/DepositRequest.class - org/example/matching/api/dto/PriceLevel.class -@@ -27,11 +30,16 @@ - org/example/matching/api/controller/WalletController.class - org/example/matching/Wallets/RiskManager.class - org/example/matching/api/dto/OrderMapper.class -+org/example/matching/api/service/LiquidBotService.class - org/example/matching/api/dto/OrderBookResponse.class -+org/example/matching/api/dto/MarketEvent.class - 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I#-+Ud1*quQOaK4? diff --git "a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]1/shelved.patch" "b/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]1/shelved.patch" deleted file mode 100644 index 60eb661..0000000 --- "a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26,_7_40\342\200\257pm_[Changes]1/shelved.patch" +++ /dev/null @@ -1,196 +0,0 @@ -Index: matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP -<+>UTF-8 -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java b/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java -new file mode 100644 ---- /dev/null -+++ b/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java -@@ -0,0 +1,65 @@ -+package org.example.matching.api.service; -+ -+import lombok.RequiredArgsConstructor; -+import org.example.matching.Wallets.RiskManager; -+import org.example.matching.Wallets.WalletService; -+import org.example.matching.api.dto.EventStatus; -+import org.example.matching.api.dto.MarketEvent; -+import org.example.matching.matching.MatchingEngine; -+import org.example.matching.model.Order; -+import org.example.matching.model.Wallet; -+import org.springframework.stereotype.Service; -+ -+import java.util.Collection; -+import java.util.List; -+ -+@Service -+@RequiredArgsConstructor -+public class SettlementService { -+ private final WalletService walletService; -+ private final MarketManagmentService marketService; -+ private final RiskManager riskManager; -+ private final MatchingEngine matchingEngine; -+ -+ -+ public void settleEvent(String eventId, String winningOutcome){ -+ MarketEvent event = marketService.getEvent(eventId); -+ if(event==null|| event.getStatus()== EventStatus.SETTLED) return;; -+ -+ // winningTicker will get assigned the outcome , if it is yes , the winningTicker is yes and no so winningTicker is No -+ String winningTicker = winningOutcome.equalsIgnoreCase("YES")? event.getYesTicker():event.getNoTicker(); -+ -+ //losingTicker will get assigned the outcome , if it is yes , the losingTicker is yes and no so losingTicker is NOx -+ String losingTicker = winningOutcome.equalsIgnoreCase("YES")?event.getNoTicker():event.getYesTicker(); -+ -+ Collection allWallets = walletService.getAllWallets(); -+ -+ for (Wallet wallet : allWallets) { -+ // 2. Pay out the Winners ($1.00 per share) -+ -+ //checking how many shares of yes one has -+ long winningShares = wallet.getAvailableShares().containsKey(winningTicker) -+ ? wallet.getAvailableShares().get(winningTicker).get() -+ : 0L; if (winningShares > 0) { -+ long payout = winningShares * 100; // 100 cents = $1.00 -+ wallet.addAvailableCash(payout); -+ wallet.getAvailableShares().remove(winningTicker); -+ } -+ -+ // 3. Remove the Losing Shares (Worth $0) -+ wallet.getAvailableShares().remove(losingTicker); -+ } -+ -+ event.setStatus(EventStatus.SETTLED); -+ event.setOutcome(winningOutcome); -+ } -+ -+ -+ //check if walletService or RiskManager -+ private void refundTicker(String ticker){ -+ List orders = matchingEngine.clearBook(ticker); -+ for (Order o:orders){ -+ walletService.releaseReservation(o.getId()); -+ } -+ } -+} -\ No newline at end of file -Index: matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP -<+>UTF-8 -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java b/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java -new file mode 100644 ---- /dev/null -+++ b/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java -@@ -0,0 +1,79 @@ -+package org.example.matching.api.service; -+ -+import org.example.matching.Wallets.WalletService; -+import org.example.matching.api.dto.EventStatus; -+import org.example.matching.api.dto.MarketEvent; -+import org.example.matching.api.service.LiquidBotService; -+import org.springframework.context.annotation.Lazy; -+import org.springframework.stereotype.Service; -+ -+import java.util.Map; -+import java.util.concurrent.ConcurrentHashMap; -+ -+@Service -+public class MarketManagmentService { -+ private final WalletService walletService; -+ private final LiquidBotService liquidBotService; -+ -+ // Stores Event by ID -+ private final Map events = new ConcurrentHashMap<>(); -+ // Stores Ticker Pairs (YES <-> NO) -+ private final Map tickerPairs = new ConcurrentHashMap<>(); -+ // NEW: Maps Tickers to the Event they belong to -+ private final Map tickerToEvent = new ConcurrentHashMap<>(); -+ -+ // Use constructor injection to avoid circular dependency issues -+ public MarketManagmentService(WalletService walletService, @Lazy LiquidBotService liquidBotService) { -+ this.walletService = walletService; -+ this.liquidBotService = liquidBotService; -+ } -+ -+ public void registerEvent(MarketEvent event) { -+ tickerPairs.put(event.getYesTicker(), event.getNoTicker()); -+ tickerPairs.put(event.getNoTicker(), event.getYesTicker()); -+ -+ // Map both tickers to this event object -+ tickerToEvent.put(event.getYesTicker(), event); -+ tickerToEvent.put(event.getNoTicker(), event); -+ } -+ -+ public String getPartnerTicker(String ticker) { -+ return tickerPairs.get(ticker); -+ } -+ -+ public MarketEvent getEvent(String eventId) { -+ return events.get(eventId); -+ } -+ -+ public MarketEvent getEventByTicker(String ticker) { -+ return tickerToEvent.get(ticker); -+ } -+ -+ public MarketEvent createEvent(String id, String question, String yesTicker, String noTicker, int minutesFromNow) { -+ MarketEvent event = MarketEvent.builder() -+ .evendID(id) -+ .questions(question) -+ .yesTicker(yesTicker) -+ .noTicker(noTicker) -+ .expiry(java.time.LocalDateTime.now().plusMinutes(minutesFromNow)) -+ .status(EventStatus.OPEN) -+ .Liquidity(100000) // Default liquidity -+ .build(); -+ -+ events.put(id, event); -+ registerEvent(event); // Populate the lookup maps -+ -+ walletService.creditUserShares("HOUSE_BOT", yesTicker, 100000); -+ walletService.creditUserShares("HOUSE_BOT", noTicker, 100000); -+ -+ // Start the bot for this specific event -+ liquidBotService.updateMarketTrigger(yesTicker); -+ return event; -+ } -+ -+ public java.util.Collection getAllOpenEvents() { -+ return events.values().stream() -+ .filter(event -> event.getStatus() == EventStatus.OPEN) -+ .collect(java.util.stream.Collectors.toList()); -+ } -+} -\ No newline at end of file -Index: matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java -IDEA additional info: -Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP -<+>UTF-8 -=================================================================== -diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java b/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java -new file mode 100644 ---- /dev/null -+++ b/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java -@@ -0,0 +1,20 @@ -+package org.example.matching.api.dto; -+ -+import lombok.Builder; -+import lombok.Data; -+ -+import java.time.LocalDateTime; -+ -+@Data -+@Builder -+public class MarketEvent { -+ private String evendID; -+ private String questions; -+ private String yesTicker; -+ private String noTicker; -+ private long Liquidity; -+ private LocalDateTime expiry; //event will expire on this date , either by or oracle -+ private EventStatus status; -+ private String outcome; -+ -+} diff --git a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_.xml b/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_.xml deleted file mode 100644 index 612f621..0000000 --- a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_.xml +++ /dev/null @@ -1,4 +0,0 @@ - - \ No newline at end of file diff --git a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_1.xml b/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_1.xml deleted file mode 100644 index cab4021..0000000 --- a/.idea/shelf/Uncommitted_changes_before_Update_at_09_03_26__7_40pm__Changes_1.xml +++ /dev/null @@ -1,49 +0,0 @@ - - \ No newline at end of file diff --git a/.idea/workspace.xml b/.idea/workspace.xml deleted file mode 100644 index 62f171b..0000000 --- a/.idea/workspace.xml +++ /dev/null @@ -1,337 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1771215102171 - - - 1771648338680 - - - 1771648512676 - - - 1771716905485 - - - 1771716936127 - - - 1771716951142 - - - 1771716972703 - - - 1771716983118 - - - 1771717007244 - - - 1771820464482 - - - 1771820479411 - - - 1771820497836 - - - 1772671560856 - - - 1772671600544 - - - 1772671662807 - - - 1772671697081 - - - 1772671751384 - - - 1772680635917 - - - 1772684678651 - - - 1772684723158 - - - 1772684747085 - - - 1772684770758 - - - 1772684815676 - - - 1772752466221 - - - 1772752500293 - - - 1772752539039 - - - 1772752591131 - - - 1772752604653 - - - 1772752666287 - - - 1772753404093 - - - 1772765628233 - - - 1772837990490 - - - 1772949584599 - - - 1773099625894 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/Strongx.iml b/Strongx.iml deleted file mode 100644 index 1f9993e..0000000 --- a/Strongx.iml +++ /dev/null @@ -1,9 +0,0 @@ - - - - - - - - - \ No newline at end of file diff --git a/backend/.gitignore b/backend/.gitignore deleted file mode 100644 index 723ef36..0000000 --- a/backend/.gitignore +++ /dev/null @@ -1 +0,0 @@ -.idea \ No newline at end of file diff --git a/backend/README.md b/backend/README.md deleted file mode 100644 index 749a73a..0000000 --- a/backend/README.md +++ /dev/null @@ -1,249 +0,0 @@ -# Max Backend - Stock Exchange Matching Engine - -The backend service for Max stock exchange platform, built with Spring Boot. This service handles order matching, trade execution, and provides RESTful APIs for the frontend. - -## 🏗️ Architecture - -``` -backend/ -├── matching-engine/ # Main matching engine service -│ ├── src/ -│ │ ├── main/ -│ │ │ ├── java/org/example/ -│ │ │ └── resources/ -│ │ │ └── application.properties -│ │ └── test/ -│ ├── journals/ # Engine logs -│ └── pom.xml -├── common/ # Shared utilities and models -│ ├── src/main/java/org/example/ -│ └── pom.xml -└── src/ # Additional source files -``` - -## 🛠️ Technology Stack - -- **Framework**: Spring Boot 3.2.2 -- **Language**: Java 17+ -- **Build Tool**: Maven -- **Parent**: Spring Boot Starter Parent 3.2.2 - -### Key Dependencies - -- **Spring Boot Starter Web**: RESTful API development -- **Spring Boot Starter Validation**: Input validation -- **Lombok**: Reduce boilerplate code -- **JUnit Jupiter 5.10.0**: Unit testing - -## 📋 Prerequisites - -- Java Development Kit (JDK) 17 or higher -- Maven 3.6 or higher -- IDE (IntelliJ IDEA, Eclipse, or VS Code recommended) - -## 🚀 Getting Started - -### 1. Install Dependencies - -Navigate to the matching-engine directory: -```bash -cd backend/matching-engine -``` - -Install all dependencies: -```bash -mvn clean install -``` - -### 2. Configure Application - -Edit `src/main/resources/application.properties`: -```properties -# Server Configuration -server.port=8080 - -# Application Name -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example=DEBUG -logging.file.name=journals/engine.log -``` - -### 3. Run the Application - -**Using Maven:** -```bash -mvn spring-boot:run -``` - -**Using Java:** -```bash -mvn clean package -java -jar target/matching-engine-1.0-SNAPSHOT.jar -``` - -The application will start on `http://localhost:8080` - -## 🧪 Testing - -### Run All Tests -```bash -mvn test -``` - -### Run Specific Test -```bash -mvn test -Dtest=YourTestClassName -``` - -### Generate Test Coverage Report -```bash -mvn clean test jacoco:report -``` - -## 📁 Project Modules - -### Matching Engine -The core service that handles: -- Order matching logic -- Trade execution -- Market data management -- RESTful API endpoints - -### Common Module -Shared utilities and models used across services: -- Data models -- Utility classes -- Common configurations -- Shared constants - -## 🔧 Development - -### Build the Project -```bash -mvn clean install -``` - -### Run in Development Mode -```bash -mvn spring-boot:run -Dspring-boot.run.profiles=dev -``` - -### Package for Production -```bash -mvn clean package -DskipTests -``` - -## 📊 API Endpoints - -### Health Check -``` -GET /actuator/health -``` - -### Order Management -``` -POST /api/orders # Create new order -GET /api/orders/{id} # Get order by ID -GET /api/orders # List all orders -DELETE /api/orders/{id} # Cancel order -``` - -### Market Data -``` -GET /api/markets # List all markets -GET /api/markets/{id} # Get market details -``` - -## 🐛 Debugging - -### Enable Debug Logging -Add to `application.properties`: -```properties -logging.level.org.example=DEBUG -logging.level.org.springframework.web=DEBUG -``` - -### View Logs -```bash -tail -f journals/engine.log -``` - -## 🔒 Security Considerations - -- Input validation using Spring Validation -- CORS configuration for frontend integration -- Request/Response logging for audit trails - -## 📈 Performance - -- Optimized order matching algorithm -- Efficient data structures for order books -- Asynchronous processing where applicable - -## 🚀 Deployment - -### Build Docker Image (Future) -```bash -docker build -t max-backend:latest . -docker run -p 8080:8080 max-backend:latest -``` - -### Environment Variables -```bash -SPRING_PROFILES_ACTIVE=prod -SERVER_PORT=8080 -``` - -## 📝 Code Style - -- Follow Java naming conventions -- Use Lombok annotations to reduce boilerplate -- Write unit tests for all business logic -- Document complex algorithms - -## 🔄 CI/CD - -### Maven Lifecycle -1. `mvn clean` - Clean build artifacts -2. `mvn compile` - Compile source code -3. `mvn test` - Run tests -4. `mvn package` - Create JAR file -5. `mvn install` - Install to local repository - -## 🐞 Troubleshooting - -### Port Already in Use -```bash -# Change port in application.properties -server.port=8081 -``` - -### Maven Build Fails -```bash -# Clean and rebuild -mvn clean install -U -``` - -### Lombok Not Working -- Install Lombok plugin in your IDE -- Enable annotation processing - -## 📚 Additional Resources - -- [Spring Boot Documentation](https://spring.io/projects/spring-boot) -- [Maven Documentation](https://maven.apache.org/guides/) -- [Lombok Documentation](https://projectlombok.org/) - -## 🤝 Contributing - -1. Create a feature branch -2. Write tests for new features -3. Ensure all tests pass -4. Follow code style guidelines -5. Submit a pull request - -## 📄 License - -This project is private and proprietary. diff --git a/backend/common/pom.xml b/backend/common/pom.xml deleted file mode 100644 index 4b082cf..0000000 --- a/backend/common/pom.xml +++ /dev/null @@ -1,18 +0,0 @@ - - - - 4.0.0 - - - - org.example - Strongx - 1.0-SNAPSHOT - - - common - - diff --git a/backend/common/src/main/java/org/example/Main.java b/backend/common/src/main/java/org/example/Main.java deleted file mode 100644 index 407f157..0000000 --- a/backend/common/src/main/java/org/example/Main.java +++ /dev/null @@ -1,7 +0,0 @@ -package org.example; - -public class Main { - public static void main(String[] args) { - System.out.println("Hello world!"); - } -} \ No newline at end of file diff --git a/backend/common/target/classes/org/example/Main.class b/backend/common/target/classes/org/example/Main.class deleted file mode 100644 index c37bb3df14c0c383d1a1fd2c3321348b255d63b2..0000000000000000000000000000000000000000 GIT binary patch literal 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1772754586115 -ORDER_PLACED: 9f12d7ee-5ad2-4702-83fb-4fd4faa682fe -ORDER 9f12d7ee-5ad2-4702-83fb-4fd4faa682fe user123 BUY 150 10 1772755348807 -ORDER_PLACED: 4cef0377-341d-4b13-8856-f44b1ad24656 -ORDER 4cef0377-341d-4b13-8856-f44b1ad24656 user-seller SELL 150 10 1772756125478 -ORDER_PLACED: 44655cad-3469-4cfb-899c-c1dacd78ccda -ORDER 44655cad-3469-4cfb-899c-c1dacd78ccda user1 BUY 100 10 1772756456024 -ORDER_PLACED: a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b -ORDER a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b user-seller SELL 150 10 1772759912084 -ORDER_PLACED: a1d913c4-317e-4f88-9c2e-05c2d422d7bb -ORDER a1d913c4-317e-4f88-9c2e-05c2d422d7bb user1 BUY 100 10 1772759987885 -ORDER_PLACED: 3db5fb8c-f24b-4674-8a4b-cbadc7fede32 -ORDER 3db5fb8c-f24b-4674-8a4b-cbadc7fede32 user-seller SELL 150 10 1772760831791 -ORDER_PLACED: 562de0cc-8ba3-4264-8158-98904cbce14d -ORDER 562de0cc-8ba3-4264-8158-98904cbce14d user1 BUY 100 10 1772760849537 -ORDER_PLACED: 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 -ORDER 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 user-seller SELL 150 10 1772761342572 -ORDER_PLACED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f -ORDER b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f user1 BUY 151 10 1772761362103 -TRADE b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 150 10 1772761362107 -TRADE_SETTLED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f <-> 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 diff --git a/backend/matching-engine/README.md b/backend/matching-engine/README.md deleted file mode 100644 index 12dbdd6..0000000 --- a/backend/matching-engine/README.md +++ /dev/null @@ -1 +0,0 @@ -Max is Stock Exchange being written in Spring Boot diff --git a/backend/matching-engine/journals/engine.log b/backend/matching-engine/journals/engine.log deleted file mode 100644 index 87647fd..0000000 --- a/backend/matching-engine/journals/engine.log +++ /dev/null @@ -1,53 +0,0 @@ -ORDER c78afcd8-aa27-4770-866b-840efa1dcad2 seller1 SELL 100 10 1772752218574 -ORDER 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 buyer1 BUY 105 4 1772752218582 -TRADE 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 c78afcd8-aa27-4770-866b-840efa1dcad2 100 4 1772752218582 -ORDER 2c267f3a-4da6-4060-bb5b-de3fa97f6029 buyer2 BUY 100 6 1772752218583 -TRADE 2c267f3a-4da6-4060-bb5b-de3fa97f6029 c78afcd8-aa27-4770-866b-840efa1dcad2 100 6 1772752218583 -ORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10 -ORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10 1772752218586 -ORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4 -ORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4 1772752218586 -TRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4 1772752218586 -TRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4 -ORDER a8eaddb2-4f1f-4df0-a28b-c365b37c6911 buyer1 BUY 100 6 -ORDER a8eaddb2-4f1f-4df0-a28b-c365b37c6911 buyer1 BUY 100 6 1772752218586 -TRADE a8eaddb2-4f1f-4df0-a28b-c365b37c6911 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05f435ca-b3b9-4288-a979-062eef0f5e06 buyer1 BUY 105 4 1772760473125 -TRADE 05f435ca-b3b9-4288-a979-062eef0f5e06 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 4 1772760473125 -ORDER ce8d19be-00e6-4e0b-8056-2f468e5d540a buyer2 BUY 100 6 1772760473126 -TRADE ce8d19be-00e6-4e0b-8056-2f468e5d540a 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 6 1772760473126 -REJECT debaf786-7218-4204-9bed-55e5d79c5e16 INSUFFICIENT_FUNDS -ORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4 -ORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4 1772760473129 -ORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6 -ORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6 1772760473129 -ORDER_PLACED: e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 -ORDER e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 user-seller SELL 100 10 1772760703367 -ORDER_PLACED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 -ORDER cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 user1 BUY 100 10 1772760707390 -TRADE cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 100 10 1772760707390 -TRADE_SETTLED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 <-> e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 -ORDER_PLACED: e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c -ORDER e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c user-seller SELL 150 10 1772761274302 -ORDER_PLACED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788 -ORDER aa3558d9-7e18-41d7-b6e5-00e3e0c69788 user1 BUY 151 10 1772761274334 -TRADE aa3558d9-7e18-41d7-b6e5-00e3e0c69788 e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c 150 10 1772761274335 -TRADE_SETTLED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788 <-> e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c -ORDER_PLACED: 89a0af09-0b11-467d-ba14-c015ea52007c -ORDER 89a0af09-0b11-467d-ba14-c015ea52007c user-seller SELL 150 10 1772837899360 -ORDER_PLACED: 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 -ORDER 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 user1 BUY 151 10 1772837899385 -TRADE 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 89a0af09-0b11-467d-ba14-c015ea52007c 150 10 1772837899386 -TRADE_SETTLED: 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 <-> 89a0af09-0b11-467d-ba14-c015ea52007c diff --git a/backend/matching-engine/pom.xml b/backend/matching-engine/pom.xml deleted file mode 100644 index 8e0bcd4..0000000 --- a/backend/matching-engine/pom.xml +++ /dev/null @@ -1,50 +0,0 @@ - - - 4.0.0 - - - org.springframework.boot - spring-boot-starter-parent - 3.2.2 - - - - org.example - matching-engine - 1.0-SNAPSHOT - - - - - org.example - common - 1.0-SNAPSHOT - - - org.springframework.boot - spring-boot-starter-web - - - org.springframework.boot - spring-boot-starter-validation - - - org.projectlombok - lombok - true - - - org.springframework.boot - spring-boot-starter - - - - org.junit.jupiter - junit-jupiter - 5.10.0 - test - - - \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/Main.java b/backend/matching-engine/src/main/java/org/example/Main.java deleted file mode 100644 index be87cb5..0000000 --- a/backend/matching-engine/src/main/java/org/example/Main.java +++ /dev/null @@ -1,109 +0,0 @@ -package org.example; - -import org.example.matching.Replay; -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.OrderBook; -import org.example.matching.model.OrderSide; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.InMemoryOrderRepository; -import org.example.matching.orderbook.OrderOrchestrator; -import org.example.matching.orderbook.OrderRepository; -import org.example.matching.validation.OrderValidator; -import org.example.matching.util.IdGenerator; - -import java.util.List; -import java.util.UUID; - -public class Main { - public static void main(String[] args) { - System.out.println("=== PART A: Engine-only smoke test ==="); - engineSmokeTest(); - - System.out.println("\n\n=== PART B: Full orchestrator E2E test ==="); - orchestratorE2ETest(); - - System.out.println("\n\n=== PART C: Replay test ==="); - replayTest(); - } - - private static void engineSmokeTest(){ - System.out.println("Testing MatchingEngine directly..."); - MatchingEngine engine = new MatchingEngine(); - - Order s1 = new Order(IdGenerator.newId(),"seller1",100L,10,System.currentTimeMillis(),OrderSide.SELL, "AAPL"); - engine.placeOrder(s1); - System.out.println("After SELL (10 @100):"); - System.out.println(engine.dumpBook()); - - Order b1 = new Order(IdGenerator.newId(), "buyer1", 105L, 4, System.currentTimeMillis(), OrderSide.BUY, "AAPL"); - List t1 = engine.placeOrder(b1); - System.out.println("Trade executed: " + t1.size() + " trade(s)"); - System.out.println(engine.dumpBook()); - - Order b2 = new Order(IdGenerator.newId(), "buyer2", 100L, 6, System.currentTimeMillis(), OrderSide.BUY, "AAPL"); - List t2 = engine.placeOrder(b2); - System.out.println("Trade executed: " + t2.size() + " trade(s)"); - System.out.println("Final order book:\n" + engine.dumpBook()); - } - - - private static void orchestratorE2ETest(){ - System.out.println("Testing full orchestrator with wallet integration..."); - OrderRepository orderRepo = new InMemoryOrderRepository(); - InMemoryWalletService walletService = new InMemoryWalletService(orderRepo); - RiskManager riskManager = new RiskManager(walletService, orderRepo); - EventJournal journal = new EventJournal(); - MatchingEngine engine = new MatchingEngine(); - - // Create orchestrator with full constructor - OrderOrchestrator orchestrator = new OrderOrchestrator(engine, journal, riskManager, orderRepo, walletService); - - // Top up wallets - walletService.creditUserShares("seller1", 10); - walletService.creditUserCash("buyer1", 10000); - - System.out.println("Initial state - Buyer cash: " + walletService.getWallet("buyer1").getAvailableCash() + - ", Seller shares: " + walletService.getWallet("seller1").getAvailableShares("MARKET")); - - // create orders - Order sell = new Order(UUID.randomUUID().toString(), "seller1", 100L, 10, System.currentTimeMillis(), OrderSide.SELL, "TSLA"); - Order buy1 = new Order(UUID.randomUUID().toString(), "buyer1", 105L, 4, System.currentTimeMillis(), OrderSide.BUY, "TSLA"); - Order buy2 = new Order(UUID.randomUUID().toString(), "buyer1", 100L, 6, System.currentTimeMillis(), OrderSide.BUY, "TSLA"); - - System.out.println("\nSubmitting orders..."); - orchestrator.submitOrder(sell); - orchestrator.submitOrder(buy1); - orchestrator.submitOrder(buy2); - - // final state - System.out.println("\nFinal order book:"); - System.out.println(engine.dumpBook()); - - System.out.println("\nFinal wallet balances:"); - System.out.println("Buyer - Cash: " + walletService.getWallet("buyer1").getAvailableCash() + - ", Shares: " + walletService.getWallet("buyer1").getAvailableShares("MARKET")); - System.out.println("Seller - Cash: " + walletService.getWallet("seller1").getAvailableCash() + - ", Shares: " + walletService.getWallet("seller1").getAvailableShares("MARKET")); - - // Show only recent journal entries (last 10) - System.out.println("\nRecent journal entries:"); - List lines = journal.readAllLines(); - int start = Math.max(0, lines.size() - 10); - for (int i = start; i < lines.size(); i++) { - System.out.println(lines.get(i)); - } - } - - private static void replayTest(){ - System.out.println("Testing journal replay functionality..."); - MatchingEngine engine2 = new MatchingEngine(); - Replay r = new Replay(engine2); - r.replayJournal(); - System.out.println("Reconstructed order book:"); - System.out.println(engine2.dumpBook()); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java b/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java deleted file mode 100644 index 5f1340d..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java +++ /dev/null @@ -1,11 +0,0 @@ -package org.example.matching; - -import org.springframework.boot.SpringApplication; -import org.springframework.boot.autoconfigure.SpringBootApplication; - -@SpringBootApplication -public class MatchingEngineApplication { - public static void main(String[] args) { - SpringApplication.run(MatchingEngineApplication.class, args); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/Replay.java b/backend/matching-engine/src/main/java/org/example/matching/Replay.java deleted file mode 100644 index 41b53bd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Replay.java +++ /dev/null @@ -1,98 +0,0 @@ -//package org.example.matching; -// -//import org.example.matching.matching.MatchingEngine; -//import org.example.matching.model.Order; -//import org.example.matching.model.OrderBook; -//import org.example.matching.model.OrderSide; -// -//import java.io.BufferedReader; -//import java.io.File; -//import java.io.FileReader; -//import java.io.IOException; -//import java.util.Scanner; -// -//public class Replay { -// // MatchingEngine matchingEngine = new MatchingEngine(); -// -// public void replayJournal(String filePath, OrderBook book) { -// try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) { -// String line; -// while ((line = reader.readLine()) != null) { -// String[] tokens = line.trim().split("\\s+"); -// -// if (tokens.length >= 7 && tokens[0].equals("ORDER")) { -// try { -// String id = tokens[1]; -// String userId = tokens[2]; -// -// // FIXED INDICES BASED ON YOUR LOG: -// long price = Long.parseLong(tokens[3]); // Was [4] -// int quantity = Integer.parseInt(tokens[4]); // Was [5] -// long timestamp = Long.parseLong(tokens[5]); -// OrderSide side = OrderSide.valueOf(tokens[6].toUpperCase()); -// -// Order reOrder = new Order(id, userId, price, quantity, timestamp, side); -// -// // Let's add a print here so you can SEE it working -// System.out.println("Replaying: " + side + " " + quantity + " @ " + price); -// -// book.placeOrder(reOrder); -// -// } catch (Exception e) { -// System.err.println("Error parsing line: " + line + " | " + e.getMessage()); -// } -// } -// } -// } catch (IOException e) { -// System.err.println("File not found: " + e.getMessage()); -// } -// }} - - - - -package org.example.matching; - -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.OrderSide; -import org.example.matching.journal.EventJournal; - -import java.util.List; - -public class Replay { - private final MatchingEngine engine; - private final EventJournal journal; - - public Replay(MatchingEngine engine) { - this.engine = engine; - this.journal = new EventJournal(); - } - - public void replayJournal() { - List lines = journal.readAllLines(); - for (String raw : lines) { - if (raw == null || raw.isBlank()) continue; - String[] first = raw.split("\\s+"); - if (first.length < 2) continue; - - if ("ORDER".equals(first[0]) && first.length >= 7) { - try { - String id = first[1]; - String user = first[2]; - String sideToken = first[3]; - long price = Long.parseLong(first[4]); - int qty = Integer.parseInt(first[5]); - long ts = Long.parseLong(first[6]); - OrderSide side = OrderSide.valueOf(sideToken); - Order o = new Order(id, user, price, qty, ts, side, "DEFAULT"); // Use DEFAULT instrument for replay - System.out.println("Replaying: " + side + " " + qty + " @ " + price); - engine.replayOrder(o); // replay mode (no journaling) - } catch (Exception e) { - System.err.println("Skipping malformed ORDER line: " + raw + " -> " + e.getMessage()); - } - } - // ignore TRADE lines - } - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java deleted file mode 100644 index 88335c0..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java +++ /dev/null @@ -1,138 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.RequiredArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.model.Reservation; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; // Add this import - -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service // Tells Spring this is a managed bean -public class InMemoryWalletService implements WalletService { - - private final Map wallets = new ConcurrentHashMap<>(); - private final Map reservations = new ConcurrentHashMap<>(); - private final OrderRepository orderRepository; - private final String INSTRUMENT = "MARKET"; - - // No-arg constructor for Main.java usage - public InMemoryWalletService() { - this.orderRepository = null; - } - - // Constructor for dependency injection - public InMemoryWalletService(OrderRepository orderRepository) { - this.orderRepository = orderRepository; - } - - private Wallet ensureWallet(String userId) { - return wallets.computeIfAbsent(userId, k -> new Wallet(userId)); - } - - @Override - public boolean reserveForOrder(Order order) { - String userId = order.getUserId(); - String instrument = order.getInstrument(); - Wallet w = ensureWallet(userId); - - if (order.getSide().name().equals("BUY")) { - long required = order.getPrice() * (long) order.getQuantity(); - if (!w.tryReserveCash(required)) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), true, instrument); - r.setReservedCash(required); - reservations.put(order.getId(), r); - } else { - if (!w.tryReserveShares(instrument, order.getQuantity())) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), false, instrument); - r.setReservedShares(order.getQuantity()); - reservations.put(order.getId(), r); - } - return true; - } - - -@Override -public void releaseReservation(String orderId){ - Reservation r = reservations.remove(orderId); - if(r==null)return; - Wallet w = ensureWallet(r.getUserId()); - if(r.getIsBuy()){ - w.releaseReserveCash(r.getReservedCash()); - - }else{ - w.releaseReservedShares(r.getInstrument(),r.getReservedShares()); - - } - } - - @Override - public void creditUserShares(String userId, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(INSTRUMENT, shares); - } - - @Override - public void creditUserShares(String userId, String instrument, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(instrument, shares); - } - - @Override - public void creditUserCash(String userId, long cash) { - Wallet w = ensureWallet(userId); - w.addAvailableCash(cash); - } - - @Override - public Wallet getWallet(String userId) { - return wallets.get(userId); - } - - @Override - public void settleTrade(Trade trade) { - Order buy = orderRepository.findById(trade.getBuyOrderId()).orElse(null); - Order sell = orderRepository.findById(trade.getSellOrderId()).orElse(null); - - if (buy == null || sell == null) return; - - Wallet buyerWallet = ensureWallet(buy.getUserId()); - Wallet sellerWallet = ensureWallet(sell.getUserId()); - Reservation buyRes = reservations.get(buy.getId()); - Reservation sellRes = reservations.get(sell.getId()); - - int qty = (int) trade.getQuantity(); - long tradeValue = trade.getPrice() * (long) qty; - String instrument = buy.getInstrument(); - // Process Buy Side - if (buyRes != null) { - long cashtoDebitFromReserved = buyRes.reduceBy(qty); - buyerWallet.debitReservedCash(cashtoDebitFromReserved); - - long refund = cashtoDebitFromReserved - tradeValue; - if (refund > 0) buyerWallet.addAvailableCash(refund); - - buyerWallet.addAvailableShares(instrument, qty); - } - - // Process Sell Side - if (sellRes != null) { - sellRes.reduceBy(qty); - sellerWallet.debitReservedShares(instrument, (long) qty); - sellerWallet.addAvailableCash(tradeValue); - } - - // Cleanup completed reservations - if (buyRes != null && buyRes.getRemainingQty() == 0) { - reservations.remove(buy.getId()); - } - if (sellRes != null && sellRes.getRemainingQty() == 0) { - reservations.remove(sell.getId()); - } - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java deleted file mode 100644 index a452b8a..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java +++ /dev/null @@ -1,34 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -@Service -public class RiskManager { - - private final WalletService walletService; - private final OrderRepository orderRepository; // 1. Add the field - - // No-arg constructor for Main.java usage - public RiskManager() { - this.walletService = null; - this.orderRepository = null; - } - - // Constructor for dependency injection - public RiskManager(WalletService walletService, OrderRepository orderRepository) { - this.walletService = walletService; - this.orderRepository = orderRepository; - } - - - public boolean checkAndReserve(Order order) { - // currently just delegates to walletService which performs the reserve attempt - //orderRepository.save(order); - - // 2. NOW ATTEMPT TO RESERVE - return walletService.reserveForOrder(order); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java deleted file mode 100644 index 73c862e..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java +++ /dev/null @@ -1,17 +0,0 @@ -package org.example.matching.Wallets; - -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; - -public interface WalletService { - boolean reserveForOrder(Order order); - void releaseReservation(String orderId); - void settleTrade(Trade trade); - - // Additional methods needed for testing and API - void creditUserShares(String userId, long shares); - void creditUserShares(String userId, String instrument, long shares); - void creditUserCash(String userId, long cash); - Wallet getWallet(String userId); -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java b/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java deleted file mode 100644 index 8c5f10f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java +++ /dev/null @@ -1,29 +0,0 @@ -package org.example.matching.api.advice; - -import org.springframework.http.HttpStatus; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.MethodArgumentNotValidException; -import org.springframework.web.bind.annotation.ExceptionHandler; -import org.springframework.web.bind.annotation.RestControllerAdvice; - -import java.util.HashMap; -import java.util.Map; - -@RestControllerAdvice -public class ApiExceptionHandler { - - // Catch Validation Errors (@Valid) - @ExceptionHandler(MethodArgumentNotValidException.class) - public ResponseEntity> handleValidation(MethodArgumentNotValidException ex) { - Map errors = new HashMap<>(); - ex.getBindingResult().getFieldErrors().forEach(error -> - errors.put(error.getField(), error.getDefaultMessage())); - return ResponseEntity.badRequest().body(errors); - } - - // Catch Custom Logic Errors - @ExceptionHandler(IllegalStateException.class) - public ResponseEntity handleBusinessError(IllegalStateException ex) { - return ResponseEntity.status(HttpStatus.CONFLICT).body(ex.getMessage()); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java deleted file mode 100644 index b018cee..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java +++ /dev/null @@ -1,38 +0,0 @@ -package org.example.matching.api.controller; - -import jdk.jfr.Event; -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.EventRequest; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.service.MarketManagmentService; -import org.example.matching.api.service.SettlementService; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -@RestController -@RequestMapping("/api/events") -@RequiredArgsConstructor -public class EventController { - private final MarketManagmentService managementService; - private final SettlementService settlementService; - - @PostMapping("/create") - public ResponseEntity create(@RequestBody EventRequest req) { - MarketEvent event = managementService.createEvent( - req.getId(), - req.getQuestions(), - req.getYesTicker(), - req.getNoTicker(), - req.getExpiry() - ); - return ResponseEntity.ok(event); - - } - - @PostMapping("/{id}/settle/{outcome}") - public ResponseEntity settle(@PathVariable String id, @PathVariable String outcome) { - settlementService.settleEvent(id, outcome); - return ResponseEntity.ok("Event " + id + " settled with outcome: " + outcome); - - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java deleted file mode 100644 index d955ddd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java +++ /dev/null @@ -1,36 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.service.MarketDataService; -import org.example.matching.matching.MatchingEngine; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.GetMapping; -import org.springframework.web.bind.annotation.PathVariable; -import org.springframework.web.bind.annotation.RequestMapping; -import org.springframework.web.bind.annotation.RestController; - -import java.util.Map; - -@RequestMapping("/api/market") -@RestController -@RequiredArgsConstructor -public class MarketController { - private final MatchingEngine matchingEngine; - private final MarketDataService marketDataService; - -// public MarketController(MatchingEngine matchingEngine) { -// this.matchingEngine = matchingEngine; -// } - - @GetMapping("/orderbook/{instrument}") - public ResponseEntity getOrderBook(@PathVariable String instrument) { - OrderBookResponse snapshot = matchingEngine.getSnapshot(instrument); - return ResponseEntity.ok(snapshot); - } - - @GetMapping("/ticker/{instrument}") - public ResponseEntity> getTicker(@PathVariable String instrument){ - return ResponseEntity.ok(marketDataService.getSnapshots(instrument.toUpperCase())); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java deleted file mode 100644 index 7e6dacd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java +++ /dev/null @@ -1,39 +0,0 @@ -package org.example.matching.api.controller; - -import jakarta.validation.Valid; -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.api.service.OrderService; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import javax.swing.text.html.parser.Entity; -import java.util.Optional; - -@RestController -@RequestMapping("/api/orders") -@RequiredArgsConstructor -public class OrderController { -private final OrderService orderService; -private final OrderRepository orderRepository; - - @PostMapping - public ResponseEntity placeOrder(@Valid @RequestBody OrderRequest request) { - OrderResponse response = orderService.processOrder(request); - - if (response.getStatus().equals("REJECTED")) { - return ResponseEntity.badRequest().body(response); - } - return ResponseEntity.ok(response); - } - - @GetMapping("/{id}") - public ResponseEntity getOrder(@PathVariable String id){ - return orderRepository.findById(id) - .map(ResponseEntity::ok) - .orElse(ResponseEntity.notFound().build()); - -}} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java deleted file mode 100644 index 2b0b3ba..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java +++ /dev/null @@ -1,59 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.DepositRequest; -import org.example.matching.api.dto.WalletResponse; -import org.example.matching.model.Wallet; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import java.util.Map; -import java.util.stream.Collectors; - -@RestController -@RequestMapping("/api/wallets") -@RequiredArgsConstructor -public class WalletController { - - private final WalletService walletService; - - @GetMapping("/{userId}") - public ResponseEntity getWallet(@PathVariable String userId){ - Wallet wallet = walletService.getWallet(userId); - - // Convert AtomicLong maps to Long maps for JSON response - Map availableShares = wallet.getAvailableShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - Map reservedShares = wallet.getReservedShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - WalletResponse response = WalletResponse.builder() - .userId(userId) - .availableCash(wallet.getAvailableCash()) - .reservedCash(wallet.getReservedCash()) - .availableShares(availableShares) - .reservedShares(reservedShares) - .build(); - return ResponseEntity.ok(response); - } - @PostMapping("/depositCash") - public ResponseEntity depositCash(@RequestBody DepositRequest request) { - walletService.creditUserCash(request.getUserId(), request.getAmount()); - return ResponseEntity.ok("Deposit Successful"); - } - - @PostMapping("/depositShares") - public ResponseEntity depositShares(@RequestBody DepositRequest request) { - // Credit shares for the specific instrument - walletService.creditUserShares(request.getUserId(), request.getInstrument(), request.getAmount()); - return ResponseEntity.ok("Shares Deposited Successfully"); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java deleted file mode 100644 index 875f533..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java +++ /dev/null @@ -1,26 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class DepositRequest { - private String userId; - private long amount; - private String instrument; // Optional: used if depositing shares instead of cash - - public String getUserId() { - return userId; - } - - public long getAmount() { - return amount; - } - - public String getInstrument() { - return instrument; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java deleted file mode 100644 index 4a6b6f6..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java +++ /dev/null @@ -1,12 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.Data; - -@Data -public class EventRequest { - private String id; - private String questions; // Matches your JSON "questions" - private String yesTicker; - private String noTicker; - private int expiry; -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventStatus.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventStatus.java deleted file mode 100644 index 73d49ad..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/EventStatus.java +++ /dev/null @@ -1,6 +0,0 @@ -package org.example.matching.api.dto; -public enum EventStatus{ - OPEN, - CLOSED, - SETTLED -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java deleted file mode 100644 index ce2e349..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java +++ /dev/null @@ -1,18 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.List; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderBookResponse { - private String instrument; - private List bids; - private List asks; -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java deleted file mode 100644 index 9d8577f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java +++ /dev/null @@ -1,21 +0,0 @@ -package org.example.matching.api.dto; - -import org.example.matching.model.Order; -import org.example.matching.model.OrderSide; - -import java.util.UUID; - -public class OrderMapper { - public static Order toDomain(OrderRequest request) { - Order order = new Order( - UUID.randomUUID().toString(), - request.getUserId(), - request.getPrice(), - (int) request.getQuantity(), - System.currentTimeMillis(), - OrderSide.valueOf(request.getSide().toUpperCase()) - ); - order.setInstrument(request.getInstrument()); - return order; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java deleted file mode 100644 index eba85b9..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java +++ /dev/null @@ -1,57 +0,0 @@ -package org.example.matching.api.dto; - -import jakarta.validation.constraints.NotBlank; -import jakarta.validation.constraints.Pattern; -import jakarta.validation.constraints.Positive; -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; -import lombok.Getter; - -@AllArgsConstructor -@NoArgsConstructor -@Data -@Getter -public class OrderRequest { - @NotBlank(message = "User ID is required") - private String userId; - - @NotBlank(message = "Instrument is required") - private String instrument; - - @Pattern(regexp = "BUY|SELL", message = "Side must be BUY or SELL") - private String side; - - @Positive(message = "Price must be greater than zero") - private long price; - - @Positive(message = "Quantity must be greater than zero") - private long quantity; - - @NotBlank(message = "Idempotency key is required") - private String idempotencyKey; // Unique string from the frontend - - public String getUserId() { - return userId; - } - - public String getInstrument() { - return instrument; - } - - public String getSide() { - return side; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public String getIdempotencyKey() { - return idempotencyKey; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java deleted file mode 100644 index f9013fe..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java +++ /dev/null @@ -1,21 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderResponse { - private String orderId; - private String status; // "ACCEPTED", "REJECTED" - private String message; // "Insufficient funds" or "Success" - private long timestamp; - - public String getStatus() { - return status; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java deleted file mode 100644 index 42a886a..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java +++ /dev/null @@ -1,13 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class PriceLevel { - private Long price; - private Long quantity; -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java deleted file mode 100644 index ef95c21..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java +++ /dev/null @@ -1,20 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.Map; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class WalletResponse { - private String userId; - private long availableCash; - private long reservedCash; - private Map availableShares; - private Map reservedShares; -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java deleted file mode 100644 index 93bf0e8..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java +++ /dev/null @@ -1,29 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderRequest; -import org.springframework.stereotype.Service; - -@Service -@RequiredArgsConstructor -public class LiquidBotService { - private final OrderService orderService; - public void seedMarket(String yesTicker, String noTicker) { - // Providing liquidity for YES - placeBotOrder(yesTicker, "BUY", 45, 1000); // Bot buys from users at 45c - placeBotOrder(yesTicker, "SELL", 55, 1000); // Bot sells to users at 55c - - // Providing liquidity for NO - placeBotOrder(noTicker, "BUY", 45, 1000); // Bot buys from users at 45c - placeBotOrder(noTicker, "SELL", 55, 1000); // Bot sells to users at 55c - } - private void placeBotOrder(String ticker, String side, long price, long qty){ - OrderRequest req = new OrderRequest(); - req.setUserId("HOUSE_BOT"); - req.setInstrument(ticker); - req.setSide(side); - req.setPrice(price); - req.setQuantity(qty); - orderService.processOrder(req); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java deleted file mode 100644 index 2df098b..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java +++ /dev/null @@ -1,67 +0,0 @@ -package org.example.matching.api.service; - -import org.springframework.stereotype.Service; -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.CopyOnWriteArrayList; - -@Service -public class MarketDataService { - //stores last price each stock is traded at - private final Map lastPrices = new ConcurrentHashMap<>(); - - // Average V(volume)WAP = sum(price*quantity)/sum(quantity) - private final Map sumPV = new ConcurrentHashMap<>(); - private final Map sumV = new ConcurrentHashMap<>(); - // To track the "Top of Book" (Best Bid/Ask) - private final Map bestBids = new ConcurrentHashMap<>(); - private final Map bestAsks = new ConcurrentHashMap<>(); - - public void UpdateTrade(String instrument, long price , long quantity){ - lastPrices.put(instrument,(double)price); - sumPV.merge(instrument,(double)(price*quantity),Double::sum); - sumV.merge(instrument,quantity,Long::sum); - } - - public void updateBookTops(String instrument, Double bestBid, Double bestAsk) { - if (bestBid != null) bestBids.put(instrument, bestBid); - if (bestAsk != null) bestAsks.put(instrument, bestAsk); - } - - - public Map getSnapshots(String instrument){ - double ltp = lastPrices.getOrDefault(instrument,0.0); - double vwap = sumV.getOrDefault(instrument,0L)==0?0: sumPV.get(instrument)/ sumV.get(instrument); - double bid = bestBids.getOrDefault(instrument, 0.0); - double ask = bestAsks.getOrDefault(instrument, 0.0); - double mid = (bid > 0 && ask > 0) ? (bid + ask) / 2.0 : ltp; - - return Map.of( - "instrument", instrument, - "lastPrice", ltp, - "vwap", vwap, - "bid", bid, - "ask", ask, - "mid", mid, - "spread", (ask - bid) - ); - } - - // A list of the last 10 prices - private final Map> priceHistory = new ConcurrentHashMap<>(); - - public void updateTrade(String instrument, long price, long quantity) { - lastPrices.put(instrument, (double) price); - - // Track History - priceHistory.computeIfAbsent(instrument, k -> new CopyOnWriteArrayList<>()) - .add(0, (double) price); // Add to the front - - // Keep only the last 10 - List history = priceHistory.get(instrument); - if (history.size() > 10) history.remove(history.size() - 1); - - // ... (rest of your VWAP logic) - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java deleted file mode 100644 index 2e749f5..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java +++ /dev/null @@ -1,78 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.OrderMapper; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service -@RequiredArgsConstructor -public class OrderService { - - private final MarketDataService marketDataService; - private final RiskManager riskManager; - private final MatchingEngine matchingEngine; - private final WalletService walletService; - private final EventJournal eventJournal; - private final OrderRepository orderRepository; - - // In-memory idempotency store: Key -> Previous Response - private final Map idempotencyStore = new ConcurrentHashMap<>(); - - public OrderResponse processOrder(OrderRequest request) { - if (idempotencyStore.containsKey(request.getIdempotencyKey())) { - return idempotencyStore.get(request.getIdempotencyKey()); - } - - Order order = OrderMapper.toDomain(request); - - if (!riskManager.checkAndReserve(order)) { - return buildResponse(order, "REJECTED", "Insufficient funds or shares"); - } - - orderRepository.save(order); - eventJournal.appendRaw("ORDER_PLACED: " + order.getId()); - - // Matching Engine execution - List trades = matchingEngine.placeOrder(order); - - for (Trade trade : trades) { - // so once trade is done manage the cash and shares of the users using their ids and stuff in walletService below - walletService.settleTrade(trade); - marketDataService.UpdateTrade(order.getInstrument(),trade.getPrice(),trade.getQuantity()); - eventJournal.appendRaw("TRADE_SETTLED: " + trade.getBuyOrderId() + " <-> " + trade.getSellOrderId()); - } - var book = matchingEngine.getOrderBookForMarketData(order.getInstrument()); - marketDataService.updateBookTops( - order.getInstrument(), - book.getBestBid(), - book.getBestAsk() - ); - - OrderResponse response = buildResponse(order, "ACCEPTED", "Success"); - idempotencyStore.put(request.getIdempotencyKey(), response); - return response; - } - - private OrderResponse buildResponse(Order order, String status, String msg) { - return OrderResponse.builder() - .orderId(order.getId()) - .status(status) - .message(msg) - .timestamp(System.currentTimeMillis()) - .build(); - } -} - diff --git a/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java b/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java deleted file mode 100644 index 4f808ee..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java +++ /dev/null @@ -1,4 +0,0 @@ -package org.example.matching.app; - -public class MatchingEngineApplication { -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java b/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java deleted file mode 100644 index 918e00c..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java +++ /dev/null @@ -1,40 +0,0 @@ -package org.example.matching.config; - -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.orderbook.InMemoryOrderRepository; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.context.annotation.Bean; -import org.springframework.context.annotation.Configuration; - -@Configuration -public class MatchingEngineConfig { - - @Bean - public EventJournal eventJournal() { - return new EventJournal(); - } - - @Bean - public OrderRepository orderRepository() { - return new InMemoryOrderRepository(); - } - - @Bean - public WalletService walletService(OrderRepository orderRepository) { - return new InMemoryWalletService(orderRepository); - } - - @Bean - public RiskManager riskManager(WalletService walletService, OrderRepository orderRepository) { - return new RiskManager(walletService, orderRepository); - } - - @Bean - public MatchingEngine matchingEngine(EventJournal eventJournal) { - return new MatchingEngine(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java b/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java deleted file mode 100644 index 48d66f5..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java +++ /dev/null @@ -1,100 +0,0 @@ -//import lombok.AllArgsConstructor; -// -//import java.io.FileWriter; -//import java.io.IOException; -//import java.nio.file.FileAlreadyExistsException; -//import java.nio.file.Files; -//import java.nio.file.Path; -// -//@AllArgsConstructor -//public class EventJournal { -// private final Path journalDir; -// private final Path journalFile; -// -// public EventJournal() { -// try { -// journalDir = Path.of("journals"); -// Files.createDirectories(journalDir); -// -// journalFile = Path.of("engine.log"); -// try { -// Files.createFile(journalFile); -// } catch (FileAlreadyExistsException e) { -// // File already exists, that's fine -// } -// } catch (IOException e) { -//throw new RuntimeException("failed to journal"); -// } -// -// } -// public synchronized void append(String event){ -// try(FileWriter writer = new FileWriter(journalFile.toFile(),true)){ -// writer.write(event); -// writer.write(System.lineSeparator()); -// writer.flush(); -// } catch (IOException e) { -// throw new RuntimeException("Failed to write to journal", e); -// } -// } -// } -// - -package org.example.matching.journal; - -import java.io.FileWriter; -import java.io.IOException; -import java.nio.file.*; -import java.util.List; - -public class EventJournal { - - private final Path journalDir; - private final Path journalFile; - - public EventJournal() { - try { - journalDir = Path.of("journals"); - Files.createDirectories(journalDir); - journalFile = journalDir.resolve("engine.log"); - if (!Files.exists(journalFile)) { - Files.createFile(journalFile); - } - } catch (IOException e) { - throw new RuntimeException("Failed to initialize EventJournal", e); - } - } - - public synchronized void appendRaw(String eventBody) { - try (FileWriter writer = new FileWriter(journalFile.toFile(), true)) { - writer.write(eventBody); - writer.write(System.lineSeparator()); - writer.flush(); - // for production consider FileDescriptor.sync to fsync() - } catch (IOException e) { - throw new RuntimeException("Failed to write to journal", e); - } - } - - // helpers with consistent format - public void appendOrder(String id, String user, String side, long price, int qty, long ts) { - String line = String.format("ORDER %s %s %s %d %d %d", id, user, side, price, qty, ts); - appendRaw(line); - } - - public void appendTrade(String buyId, String sellId, long price, int qty, long ts) { - String line = String.format("TRADE %s %s %d %d %d", buyId, sellId, price, qty, ts); - appendRaw(line); - } - - public List readAllLines() { - try { - return Files.readAllLines(journalFile); - } catch (IOException e) { - throw new RuntimeException("Failed to read journal", e); - } - } - - public Path getJournalFile() { - return journalFile; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java b/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java deleted file mode 100644 index d15634f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java +++ /dev/null @@ -1,184 +0,0 @@ -//package org.example.matching.matching; -// -//import org.example.matching.journal.EventJournal; -//import org.example.matching.model.Order; -//import org.example.matching.model.OrderBook; -//import org.example.matching.model.Trade; -// -//import java.util.List; -// -//public class MatchingEngine { -// -// private final OrderBook orderBook; -// private final EventJournal journal; -// -// public MatchingEngine() { -// this.orderBook = new OrderBook(); -// this.journal = new EventJournal(); -// -// } -// -// public List placeOrder(Order order) { -// -// journal.append("ORDER " + -// order.getId() + " " + -// order.getUserId() + " " + -// -// order.getPrice() + " " + -// order.getQuantity() -// +" "+ order.getTimestamp() + " "+ order.getSide()); -// -// List trades = orderBook.placeOrder(order); -// -// for (Trade trade : trades) { -// journal.append("TRADE " + -// trade.getBuyOrderId() + " " + -// trade.getSellOrderId() + " " + -// trade.getPrice() + " " + -// trade.getQuantity() -// +trade.getTimestamp()); -// } -// -// return trades; -// } -// -// public String dumpBook() { -// return orderBook.dumpBook(); -// } -//} - - -package org.example.matching.matching; - -import jakarta.annotation.PostConstruct; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.dto.PriceLevel; -import org.example.matching.journal.EventJournal; -import org.example.matching.model.Order; -import org.example.matching.model.OrderBook; -import org.example.matching.model.Trade; -import org.springframework.stereotype.Service; - -import java.util.Deque; -import java.util.List; -import java.util.Map; -import java.util.TreeMap; -import java.util.concurrent.ConcurrentHashMap; - - -@Service -public class MatchingEngine { - - private final Map orderBooks = new ConcurrentHashMap<>(); - private final EventJournal journal; - - public MatchingEngine() { - this.journal = new EventJournal(); - } - - @PostConstruct - public void init() { - // Pre-create books for stocks you want to test - orderBooks.put("AAPL", new OrderBook()); - orderBooks.put("TSLA", new OrderBook()); - orderBooks.put("BTC", new OrderBook()); - } - - // Helper method to get the right order book - private OrderBook getOrderBook(String instrument) { - return orderBooks.computeIfAbsent(instrument, k -> new OrderBook()); - } - // Add this inside your MatchingEngine class - public OrderBook getOrderBookForMarketData(String instrument) { - return orderBooks.getOrDefault(instrument, new OrderBook()); - } - - // live mode records to journal; record=false used during replay - public List placeOrder(Order order, boolean record) { - if (record) { - journal.appendOrder(order.getId(), order.getUserId(), order.getSide().name(), order.getPrice(), order.getQuantity(), order.getTimestamp()); - } - - OrderBook book = getOrderBook(order.getInstrument() != null ? order.getInstrument() : "DEFAULT"); - List trades = book.placeOrder(order); - - if (record) { - for (Trade t : trades) { - journal.appendTrade(t.getBuyOrderId(), t.getSellOrderId(), t.getPrice(), (int) t.getQuantity(), t.getTimestamp()); - } - } - return trades; - } - - // convenience for normal usage - public List placeOrder(Order order) { - return placeOrder(order, true); - } - - // used by replay to rebuild book without re-journaling - public void replayOrder(Order order) { - placeOrder(order, false); - } - - // replay all lines from journal (optional helper) - public void replayJournal() { - List lines = journal.readAllLines(); - for (String raw : lines) { - if (raw == null || raw.isBlank()) continue; - String[] parts = raw.split("\\s+"); - if (parts.length < 2) continue; - if ("ORDER".equals(parts[0]) && parts.length >= 7) { - // ORDER id user side price qty ts - String id = parts[1]; - String user = parts[2]; - String side = parts[3]; - long price = Long.parseLong(parts[4]); - int qty = Integer.parseInt(parts[5]); - long ts = Long.parseLong(parts[6]); - // create order via your Order constructor (check arg ordering) - Order o = new Order(id, user, price, qty, ts, org.example.matching.model.OrderSide.valueOf(side), "DEFAULT"); - replayOrder(o); - } - // ignore TRADE lines during replay - } - } - /** - * Returns a list of price levels for a specific side (bids or asks). - * It sums up the quantities of all orders at each price point. - */ - private List getPriceLevels(TreeMap> side) { - return side.entrySet().stream() - .map(entry -> { - long price = entry.getKey(); - // Sum the quantity of every Order sitting in the Deque for this price - long totalQty = entry.getValue().stream() - .mapToLong(Order::getQuantity) - .sum(); - return new PriceLevel(price, totalQty); - }) - .toList(); - } - - - /** - * Creates a full snapshot of the book. - */ - public OrderBookResponse getSnapshot(String instrument) { - OrderBook book = getOrderBook(instrument); - return OrderBookResponse.builder() - .instrument(instrument) - .bids(getPriceLevels(book.getBids())) - .asks(getPriceLevels(book.getAsks())) - .build(); - } - - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - for (Map.Entry entry : orderBooks.entrySet()) { - sb.append("=== ORDER BOOK: ").append(entry.getKey()).append(" ===\n"); - sb.append(entry.getValue().dumpBook()); - sb.append("\n"); - } - return sb.toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Order.java b/backend/matching-engine/src/main/java/org/example/matching/model/Order.java deleted file mode 100644 index 69132a3..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Order.java +++ /dev/null @@ -1,93 +0,0 @@ -package org.example.matching.model; - -import lombok.RequiredArgsConstructor; - -import java.time.LocalDateTime; - -@RequiredArgsConstructor -public class Order { - String id; - String userId; - long price; - int quantity; - long timestamp; - OrderSide side; - String instrument; // Added for multi-book support - - public Order(String userId, long price, int quantity, long timestamp, OrderSide side) { - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side, String instrument) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = instrument != null ? instrument : "DEFAULT"; - } - - public String getId() { - return id; - } - - public String getUserId() { - return userId; - } - - public long getPrice() { - return price; - } - - public int getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } - - public OrderSide getSide() { - return side; - } - public void reduceQuantity(long delta) { - if (delta < 0) throw new IllegalArgumentException("delta must be >= 0"); - if (delta > quantity) throw new IllegalArgumentException("reduce more than remaining"); - this.quantity -= (int) delta; - } - @Override - public String toString() { - return "Order{" + - "id='" + id + '\'' + - ", userId='" + userId + '\'' + - ", price=" + price + - ", quantity=" + quantity + - ", timestamp=" + timestamp + - ", side=" + side + - '}'; - } - - public String getInstrument() { - return instrument; - } - - public void setInstrument(String instrument) { - this.instrument = instrument; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java b/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java deleted file mode 100644 index aee9ed6..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java +++ /dev/null @@ -1,259 +0,0 @@ -//package org.example.matching.model; -////Draft -// -// -//import com.sun.source.tree.BinaryTree; -//import com.sun.source.tree.ExpressionTree; -//import com.sun.source.tree.Tree; -//import com.sun.source.tree.TreeVisitor; -// -//import java.util.*; -// -//public class OrderBook { -// -// private OrderSide orderSide; -// private Order order; -// -// -// //Balancer that balances the percentage when it comes -// Long MoneyPool; -// TreeMap buy = new TreeMap<>(); -// TreeMap sell = new TreeMap<>(); -// //or TreeMap sell = new TreeMap<>(); -////or TreeMap> sellOrders = new TreeMap<>(); -// // sell.put -// //get list of orders from db -// // -//List trades = new ArrayList<>(); -//// assume we a.add(sell) -// //orderside che a = sell and buy -// //buy list -// //sell list -// //order1 is order1dto -// public Map Match(OrderSide a , TreeMap buy , TreeMap sell , Order order1){ -// // we get order1 from post req , order1dto ig , and take here -// if (order1.side==OrderSide.BUY){ -// long price = order1.price; -// long timestamp = order1.timestamp; -// if(price>0){ -// //we need to have a list of buy and sell guys. -// // putting in order before that we need the least of sell guys to see and sort so we need binary -// Long bestask = sell.firstKey(); // the least value in tree -// if(price>sell.firstKey()){ -// if(order1.quantity==bestask.quantity){ -// //sell all -// } -// if(//less quantity -// ){ -// //only share those -// } -// trades.add(order1); -// } -// /* if (price == //lest value of tree) -// Long bestask = sell.firstKey(); -// sell.remove(bestask) -// price -// // ) -// //remove sell.remove generate a trade impact algorithm of percentage or stock // later topic -// */ -// -// //1) Binary Search Tree -// //2) get last value -// //3) compare -// -// } -// -// } -// -// -// -// } -// -// -//} -// - -package org.example.matching.model; - -import org.example.matching.journal.EventJournal; - -import java.io.IOException; -import java.util.*; - -public class OrderBook { - - private final TreeMap> ask = new TreeMap<>(); - private final TreeMap> bids = new TreeMap<>(Comparator.reverseOrder()); - private final Map orderPriceIndex = new HashMap<>(); // orderId->price - - public OrderBook() { - } - public List placeOrder(Order incoming) { - List trades = new ArrayList<>(); - - if (incoming.getSide() == OrderSide.BUY) { - matchBuy(incoming, trades); - if (incoming.getQuantity() > 0) { - addToBook(bids, incoming); - } - } else { - matchSell(incoming, trades); - for(Trade t:trades) { - // Journal matches if needed - } - if (incoming.getQuantity() > 0) { - addToBook(ask, incoming); - } - } - return trades; - } - private void matchBuy(Order buy, List trades) { - while(buy.getQuantity()>0&& !ask.isEmpty()){ - //it is first seen if ask is not empty - Map.Entry> bestAskEntry = ask.firstEntry(); - //getting the root node of treemap i.e.top value of it . - long askPrice = bestAskEntry.getKey(); - // the long will be price do .key() is askprice of that node - - if(askPrice> buy.getPrice()){ - System.out.println("your order will fullfill once it matches the appropriate seller "); - break; - } - Deque queue = bestAskEntry.getValue(); - // it will be a single oblject and not queue, why is it in queue jere as the first node is object - //getting the first node - Order sell = queue.peekFirst(); - if(sell==null){ - ask.remove(askPrice); - continue; - } - long tradeQty = Math.min(buy.getQuantity(),sell.getQuantity()); - long tradePrice = sell.getPrice(); - long ts = System.currentTimeMillis(); - trades.add(new Trade(buy.getId(),sell.getId(),tradePrice,tradeQty,ts)); - - buy.reduceQuantity(tradeQty); - sell.reduceQuantity(tradeQty); - - if(sell.getQuantity()==0){ - queue.removeFirst(); - orderPriceIndex.remove(sell.getId()); - if(queue.isEmpty()) ask.remove(askPrice); - else{ - //paritally filled resting order remains - } - } - } - } - private void matchSell(Order sell, List trades) { - while (sell.getQuantity() > 0 && !bids.isEmpty()) { - Map.Entry> bestBidEntry = bids.firstEntry(); // because bids is reverseOrder - long bidPrice = bestBidEntry.getKey(); - // price crossing condition: best bid >= sell price - if (bidPrice < sell.getPrice()) break; - - Deque queue = bestBidEntry.getValue(); - Order buy = queue.peekFirst(); - if (buy == null) { - bids.remove(bidPrice); - continue; - } - - int tradedQty = Math.min(sell.getQuantity(), buy.getQuantity()); - long tradePrice = buy.getPrice(); // resting buy price (maker) - long ts = System.currentTimeMillis(); - trades.add(new Trade(buy.getId(), sell.getId(), tradePrice, tradedQty, ts)); - // a.createlogs(sell,new Trade(buy.getId(), sell.getId(), tradePrice, tradedQty, ts)); - sell.reduceQuantity(tradedQty); - buy.reduceQuantity(tradedQty); - - if (buy.getQuantity() == 0) { - queue.removeFirst(); - orderPriceIndex.remove(buy.getId()); - if (queue.isEmpty()) bids.remove(bidPrice); - } else { - // partial fill; buy stays - } - - // Handle sell order completion when quantity reaches 0 - if (sell.getQuantity() == 0) { - // Sell order is fully filled, remove from asks if it was added - // Note: incoming sell order isn't in the book yet, so no removal needed - } - } - } - // Inside your OrderBook.java model - public Double getBestBid() { - return bids.isEmpty() ? 0.0 : bids.lastKey().doubleValue(); - } - - public Double getBestAsk() { - return ask.isEmpty() ? 0.0 : ask.firstKey().doubleValue(); - } - private void addToBook(TreeMap> bookside, Order order){ - // treemap bookside and order order - - Deque q = bookside.computeIfAbsent(order.getPrice(),k->new ArrayDeque<>()); - q.addLast(order); - orderPriceIndex.put(order.getId(), order.getPrice());} - - public boolean cancel(String orderId) { - Long price = orderPriceIndex.get(orderId); - if (price == null) return false; - // try both sides (only one will contain it) - Deque q = ask.get(price); - if (q != null && removeFromQueue(q, orderId)) { - if (q.isEmpty()) ask.remove(price); - orderPriceIndex.remove(orderId); - return true; - } - q = bids.get(price); - if (q != null && removeFromQueue(q, orderId)) { - if (q.isEmpty()) bids.remove(price); - orderPriceIndex.remove(orderId); - return true; - } - return false; - } - - private boolean removeFromQueue(Deque q, String orderId) { - // linear scan; for higher performance maintain node references - Iterator it = q.iterator(); - while (it.hasNext()) { - Order o = it.next(); - if (o.getId().equals(orderId)) { - it.remove(); - return true; - } - } - return false; - } - public Optional bestAsk() { - return ask.isEmpty() ? Optional.empty() : Optional.of(ask.firstKey()); - } - public Optional bestBid() { - return bids.isEmpty() ? Optional.empty() : Optional.of(bids.firstKey()); - } - - // Add getters for MatchingEngine access - public TreeMap> getAsks() { - return ask; - } - - public TreeMap> getBids() { - return bids; - } - - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - sb.append("ASKS:\n"); - for (Map.Entry> e : ask.entrySet()) { - sb.append(e.getKey()).append(" -> ").append(e.getValue()).append("\n"); - } - sb.append("BIDS:\n"); - for (Map.Entry> e : bids.entrySet()) { - sb.append(e.getKey()).append(" -> ").append(e.getValue()).append("\n"); - } - return sb.toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java b/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java deleted file mode 100644 index 2c98b1c..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java +++ /dev/null @@ -1,8 +0,0 @@ -package org.example.matching.model; - -public enum OrderSide { -BUY, - SELL - - -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java b/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java deleted file mode 100644 index b93b588..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java +++ /dev/null @@ -1,97 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.Setter; - -@Getter @Setter @AllArgsConstructor -public class Reservation { - private final String OrderId; - private final String userId; - private final long priceatReserve; - private int remainingQty; - private String instrument; // Add instrument field - - private long reservedCash; - private long reservedShares; - private final Boolean isBuy; - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = "MARKET"; // Default instrument - } - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy, String instrument) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = instrument != null ? instrument : "MARKET"; - } - - public long reduceBy(int qty) { - if (qty <= 0 || remainingQty <= 0) { - return 0; - } - - // Don't consume more than what is left in this specific reservation - int consumed = Math.min(qty, remainingQty); - long cashUsed =0; - if (isBuy) { - // Calculate how much cash was 'used' for this portion of the trade - cashUsed = (long) consumed * priceatReserve; - - // Subtract the used cash from the total reserved cash - this.reservedCash -= cashUsed; - - if (this.reservedCash < 0) this.reservedCash = 0; - } else { - // For a sell order, we just reduce the count of shares held - this.reservedShares -= consumed; - - if (this.reservedShares < 0) this.reservedShares = 0; - } - - // Finally, reduce the quantity so we know how much of the order is left to fill - this.remainingQty -= consumed; - return cashUsed; - } - - // Additional getters needed by the codebase - public String getOrderId() { - return OrderId; - } - - public String getUserId() { - return userId; - } - - public Boolean getIsBuy() { - return isBuy; - } - - public long getReservedCash() { - return reservedCash; - } - - public long getReservedShares() { - return reservedShares; - } - - public int getRemainingQty() { - return remainingQty; - } - - public void setReservedCash(long reservedCash) { - this.reservedCash = reservedCash; - } - - public void setReservedShares(long reservedShares) { - this.reservedShares = reservedShares; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java b/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java deleted file mode 100644 index fde50a9..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java +++ /dev/null @@ -1,40 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.NoArgsConstructor; -import lombok.Setter; -import lombok.ToString; - -@Getter -@Setter -@AllArgsConstructor -@NoArgsConstructor -@ToString -public class Trade { - private String buyOrderId; - private String sellOrderId; - private long price; - private long quantity; - private long timestamp; - - public String getBuyOrderId() { - return buyOrderId; - } - - public String getSellOrderId() { - return sellOrderId; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java b/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java deleted file mode 100644 index 48c7dba..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java +++ /dev/null @@ -1,134 +0,0 @@ -package org.example.matching.model; - -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.atomic.AtomicLong; - -public class Wallet { - private final String UserID; - private final AtomicLong availablecash = new AtomicLong(0); - private final AtomicLong reservedcash = new AtomicLong(0); - - // Fixed: Standardized on AtomicLong for all maps - private final ConcurrentHashMap availableShares = new ConcurrentHashMap<>(); - private final ConcurrentHashMap reservedShares = new ConcurrentHashMap<>(); - - public Wallet(String userID) { - this.UserID = userID; - } - - public String getUserId() { - return UserID; - } - - public long getAvailableCash() { - return availablecash.get(); - } - - public long getReservedCash() { - return reservedcash.get(); - } - - public void addAvailableCash(long amount) { - availablecash.addAndGet(amount); - } - - public boolean tryReserveCash(long amount) { - while (true) { - long avail = availablecash.get(); - //if avail less than the amount needed - if (avail < amount) return false; - if (availablecash.compareAndSet(avail, avail - amount)) { - reservedcash.addAndGet(amount); - return true; - //else avail = avail - amount and reserve cash .add amount - } - } - } - - public void releaseReserveCash(long amount) { - //in release reserve cash we just subtract the amount from the reservedcash and add it back to the available cash. - reservedcash.addAndGet(-amount); - availablecash.addAndGet(amount); - } - -//remove the money from the reserves - public void debitReservedCash(long amount) { - reservedcash.addAndGet(-amount); - - } - - // Fixed: Returns along to match AtomicLong, and handles the Map lookup safely - public long getAvailableShares(String instrument) { - AtomicLong val = availableShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - public long getReservedShares(String instrument) { - AtomicLong val = reservedShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - // Methods to get all shares for API responses - public ConcurrentHashMap getAvailableShares() { - return availableShares; - } - - public ConcurrentHashMap getReservedShares() { - return reservedShares; - } - - // get the quantity of the shares the available - //get the qty of reserved of shares - //pass the shares and the qty to reserve it - public boolean tryReserveShares(String instrument, long qty) { - // Fixed: Use AtomicLong and handle initialization correctly - // atomiclong does not hold it instead it points to a memory address - AtomicLong avail = availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); - AtomicLong reserved = reservedShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); -// - // currently is the - while (true) { - long currentAvail = avail.get(); - if (currentAvail < qty) return false; -//if avail >qty - // avail and subtract from avail - if (avail.compareAndSet(currentAvail, currentAvail - qty)) { - reserved.addAndGet(qty); - return true; - } - } - } - // see if the instrument exists - //if not create it - // -//atomiclong avail = availableshares.computeifabsent(instrument , - //atomiclong resrved = resrvedshares.computeIfabsent(instrument,k-> new AtomicLong(0); - public void releaseReservedShares(String instrument, long qty) { - // Fixed: Use AtomicLong here to match the class fields - AtomicLong reserved = reservedShares.get(instrument); - AtomicLong avail = availableShares.get(instrument); - - if (reserved != null) { - reserved.addAndGet(-qty); - } - - if (avail != null) { - avail.addAndGet(qty); - } - } - - public void debitReservedShares(String instrument, long qty) { - // Fixed: Changed from AtomicInteger to AtomicLong - AtomicLong reserved = reservedShares.get(instrument); - if (reserved != null) { - reserved.addAndGet(-qty); - } - } - - //add so available shares . add the shares and in if not create and add - public void addAvailableShares(String instrument, long qty) { - // Fixed: Used AtomicLong in the lambda - availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)) - .addAndGet(qty); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java deleted file mode 100644 index 6ddee65..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java +++ /dev/null @@ -1,24 +0,0 @@ -package org.example.matching.orderbook; - -import org.example.matching.model.Order; -import org.springframework.stereotype.Repository; - -import java.util.HashMap; -import java.util.Map; -import java.util.Optional; -import java.util.concurrent.ConcurrentHashMap; - -@Repository -public class InMemoryOrderRepository implements OrderRepository { - private final Map map = new ConcurrentHashMap<>(); - - @Override - public void save(Order order){ - map.put(order.getId(),order); - } - @Override - public Optional findById(String OrderId){ - return Optional.ofNullable(map.get(OrderId)); - } - -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java deleted file mode 100644 index ced672e..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java +++ /dev/null @@ -1,114 +0,0 @@ -package org.example.matching.orderbook;//package org.example.matching.orderbook; -// -//import org.example.matching.journal.EventJournal; -//import org.example.matching.matching.MatchingEngine; -//import org.example.matching.model.Order; -//import org.example.matching.model.Trade; -// - -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; -import org.example.matching.orderbook.OrderRepository; -import org.example.matching.validation.OrderValidator; - -import java.util.List; - -public class OrderOrchestrator { - - private final MatchingEngine matchingEngine; - private final EventJournal eventJournal; - private final OrderValidator orderValidator; - private final RiskManager riskManager; - private final OrderRepository orderRepository; - private final WalletService walletService; - - // Constructor for basic functionality - public OrderOrchestrator(MatchingEngine matchingEngine, - EventJournal eventJournal, OrderValidator orderValidator) { - this.matchingEngine = matchingEngine; - this.eventJournal = eventJournal; - this.orderValidator = orderValidator; - this.riskManager = null; - this.orderRepository = null; - this.walletService = null; - } - - // Full constructor with wallet and risk management - public OrderOrchestrator(MatchingEngine matchingEngine, - EventJournal eventJournal, - RiskManager riskManager, - OrderRepository orderRepository, - WalletService walletService) { - this.matchingEngine = matchingEngine; - this.eventJournal = eventJournal; - this.riskManager = riskManager; - this.orderRepository = orderRepository; - this.walletService = walletService; - this.orderValidator = new OrderValidator(); // Default validator - } - - public void submitOrder(Order order) { - if (!orderValidator.validate(order)) { - eventJournal.appendRaw("REJECT " + order.getId() + " INVALID_ORDER"); - return; - } - - // Use risk manager and wallet service if available - if (riskManager != null && walletService != null) { - // Check and reserve funds/shares - if (!riskManager.checkAndReserve(order)) { - eventJournal.appendRaw("REJECT " + order.getId() + " INSUFFICIENT_FUNDS"); - return; - } - - // Save order to repository - orderRepository.save(order); - } - - // 1️⃣ Journal the incoming order - eventJournal.appendRaw(formatOrder(order)); - - // 2️⃣ Send to matching engine - List trades = matchingEngine.placeOrder(order); - - // 3️⃣ Settle trades and journal results - if (walletService != null) { - for (Trade trade : trades) { - walletService.settleTrade(trade); - eventJournal.appendRaw(formatTrade(trade)); - } - } else { - // Just journal trades if no wallet service - for (Trade trade : trades) { - eventJournal.appendRaw(formatTrade(trade)); - } - } - } - - private String formatOrder(Order order) { - return String.format( - "ORDER %s %s %s %d %d", - order.getId(), - order.getUserId(), - order.getSide(), - order.getPrice(), - order.getQuantity() - ); - } - - private String formatTrade(Trade trade) { - return String.format( - "TRADE %s %s %d %d", - trade.getBuyOrderId(), - trade.getSellOrderId(), - trade.getPrice(), - trade.getQuantity() - ); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java deleted file mode 100644 index 94c86f2..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java +++ /dev/null @@ -1,14 +0,0 @@ -package org.example.matching.orderbook; - - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.springframework.stereotype.Repository; - -import java.util.Optional; - -//@Repository -public interface OrderRepository { - void save(Order order); - Optional findById(String orderId); -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java b/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java deleted file mode 100644 index 5363524..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java +++ /dev/null @@ -1,10 +0,0 @@ -package org.example.matching.util; - -import java.util.UUID; - -public class IdGenerator { - - public static String newId() { - return UUID.randomUUID().toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java b/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java deleted file mode 100644 index 4780b53..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java +++ /dev/null @@ -1,34 +0,0 @@ -package org.example.matching.validation; - -import org.example.matching.model.Order; - -public class OrderValidator { - public boolean validate(Order order) { - - if (order == null) { - return false; - } - - if (order.getId() == null || order.getId().isBlank()) { - return false; - } - - if (order.getUserId() == null || order.getUserId().isBlank()) { - return false; - } - - if (order.getSide() == null) { - return false; - } - - if (order.getPrice() <= 0) { - return false; - } - - if (order.getQuantity() <= 0) { - return false; - } - - return true; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/resources/application.properties b/backend/matching-engine/src/main/resources/application.properties deleted file mode 100644 index b2860ce..0000000 --- a/backend/matching-engine/src/main/resources/application.properties +++ /dev/null @@ -1,12 +0,0 @@ -# Server Configuration -server.port=8080 - -# Application Configuration -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example.matching=DEBUG -logging.level.org.springframework.web=INFO - -# Jackson Configuration (for JSON serialization) -spring.jackson.serialization.indent-output=true diff --git a/backend/matching-engine/target/classes/application.properties b/backend/matching-engine/target/classes/application.properties deleted file mode 100644 index b2860ce..0000000 --- a/backend/matching-engine/target/classes/application.properties +++ /dev/null @@ -1,12 +0,0 @@ -# Server Configuration -server.port=8080 - -# Application Configuration -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example.matching=DEBUG -logging.level.org.springframework.web=INFO - -# Jackson Configuration (for JSON serialization) -spring.jackson.serialization.indent-output=true diff --git a/backend/matching-engine/target/classes/org/example/Main.class b/backend/matching-engine/target/classes/org/example/Main.class deleted file mode 100644 index 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a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst +++ /dev/null @@ -1,37 +0,0 @@ -org/example/matching/api/controller/MarketController.class -org/example/Main.class -org/example/matching/app/MatchingEngineApplication.class -org/example/matching/model/Trade.class -org/example/matching/model/OrderSide.class -org/example/matching/api/dto/OrderResponse.class -org/example/matching/journal/EventJournal.class -org/example/matching/Wallets/WalletService.class -org/example/matching/Wallets/InMemoryWalletService.class -org/example/matching/model/Reservation.class -org/example/matching/validation/OrderValidator.class -org/example/matching/api/controller/OrderController.class -org/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class -org/example/matching/api/advice/ApiExceptionHandler.class -org/example/matching/model/OrderBook.class -org/example/matching/api/dto/WalletResponse$WalletResponseBuilder.class -org/example/matching/orderbook/OrderOrchestrator.class -org/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class -org/example/matching/orderbook/InMemoryOrderRepository.class -org/example/matching/matching/MatchingEngine.class -org/example/matching/model/Order.class -org/example/matching/api/dto/DepositRequest.class -org/example/matching/api/dto/PriceLevel.class -org/example/matching/api/dto/WalletResponse.class -org/example/matching/Replay.class -org/example/matching/util/IdGenerator.class -org/example/matching/api/controller/WalletController.class -org/example/matching/Wallets/RiskManager.class -org/example/matching/api/dto/OrderMapper.class -org/example/matching/api/dto/OrderBookResponse.class -org/example/matching/api/dto/OrderRequest.class -org/example/matching/config/MatchingEngineConfig.class -org/example/matching/api/service/MarketDataService.class -org/example/matching/orderbook/OrderRepository.class -org/example/matching/MatchingEngineApplication.class -org/example/matching/model/Wallet.class -org/example/matching/api/service/OrderService.class diff --git a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst deleted file mode 100644 index d31a6fd..0000000 --- a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst +++ /dev/null @@ -1,34 +0,0 @@ -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Trade.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java 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-/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java 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-/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Replay.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderSide.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java diff --git a/backend/matching-engine/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst b/backend/matching-engine/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst deleted file mode 100644 index e69de29..0000000 diff --git a/backend/src/main/java/org/example/Main.java b/backend/src/main/java/org/example/Main.java deleted file mode 100644 index 407f157..0000000 --- a/backend/src/main/java/org/example/Main.java +++ /dev/null @@ -1,7 +0,0 @@ -package org.example; - -public class Main { - public static void main(String[] args) { - System.out.println("Hello world!"); - } -} \ No newline at end of file diff --git a/backend/src/pom.xml b/backend/src/pom.xml deleted file mode 100644 index 39b72ca..0000000 --- a/backend/src/pom.xml +++ /dev/null @@ -1,30 +0,0 @@ - - - 4.0.0 - - org.example - Strongx - 1.0-SNAPSHOT - pom - - common - matching-engine - - - - org.projectlombok - lombok - 1.18.42 - provided - - - - - 19 - 19 - UTF-8 - - - \ No newline at end of file diff --git a/common.iml b/common.iml deleted file mode 100644 index 99f38c6..0000000 --- a/common.iml +++ /dev/null @@ -1,19 +0,0 @@ - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/journals/engine.log b/journals/engine.log 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-ORDER_PLACED: 4088cdcc-5d72-4a05-bd7b-aef37940f405 -ORDER 4088cdcc-5d72-4a05-bd7b-aef37940f405 HOUSE_BOT SELL 52 500 1773115422800 -ORDER_PLACED: 052f3f2f-1a59-4bd8-998e-815b1c457976 -ORDER 052f3f2f-1a59-4bd8-998e-815b1c457976 HOUSE_BOT SELL 52 500 1773115422803 -ORDER_PLACED: 19e3ed26-b804-42a3-bcbc-b7d9c1d84912 -ORDER 19e3ed26-b804-42a3-bcbc-b7d9c1d84912 HOUSE_BOT SELL 52 500 1773115432535 -ORDER_PLACED: a1fa2e30-dba1-4ddf-8d8d-28bb3c8785af -ORDER a1fa2e30-dba1-4ddf-8d8d-28bb3c8785af HOUSE_BOT SELL 52 500 1773115432536 -ORDER_PLACED: b7ded81f-58ed-4723-a693-9fb313fb7224 -ORDER b7ded81f-58ed-4723-a693-9fb313fb7224 HOUSE_BOT SELL 52 500 1773115517554 -ORDER_PLACED: 070db175-751a-4a57-953e-862ea50f16d7 -ORDER 070db175-751a-4a57-953e-862ea50f16d7 HOUSE_BOT SELL 52 500 1773115517557 -ORDER_PLACED: f5a62e4e-9b94-4ce5-bc2d-2df3fee64a5d -ORDER f5a62e4e-9b94-4ce5-bc2d-2df3fee64a5d TEST_USER SELL 48 100 1773115543826 -ORDER_PLACED: 50babf85-2f52-44d7-b02b-78653bcfa0c0 -ORDER 50babf85-2f52-44d7-b02b-78653bcfa0c0 HOUSE_BOT SELL 52 500 1773180225213 -ORDER_PLACED: 1c800282-d925-4b30-ab5b-6456dd49f780 -ORDER 1c800282-d925-4b30-ab5b-6456dd49f780 HOUSE_BOT SELL 52 500 1773180225216 -ORDER_PLACED: b49d3f7e-e844-494b-8859-d9217aaf69da -ORDER b49d3f7e-e844-494b-8859-d9217aaf69da TRADER1 SELL 52 100 1773180255539 -ORDER_PLACED: a94818b6-1ad8-4976-b862-664729216038 -ORDER a94818b6-1ad8-4976-b862-664729216038 TRADER1 SELL 48 50 1773180283856 -ORDER_PLACED: 13876ec9-beed-4de5-b979-f7d5f0c2a03b -ORDER 13876ec9-beed-4de5-b979-f7d5f0c2a03b TRADER2 BUY 52 100 1773180298567 -TRADE 13876ec9-beed-4de5-b979-f7d5f0c2a03b a94818b6-1ad8-4976-b862-664729216038 48 50 1773180298567 -TRADE 13876ec9-beed-4de5-b979-f7d5f0c2a03b 50babf85-2f52-44d7-b02b-78653bcfa0c0 52 50 1773180298567 -TRADE_SETTLED: 13876ec9-beed-4de5-b979-f7d5f0c2a03b <-> a94818b6-1ad8-4976-b862-664729216038 -TRADE_SETTLED: 13876ec9-beed-4de5-b979-f7d5f0c2a03b <-> 50babf85-2f52-44d7-b02b-78653bcfa0c0 -ORDER_PLACED: 5e3586db-0b48-4c10-bdcd-daca7d0ce198 -ORDER 5e3586db-0b48-4c10-bdcd-daca7d0ce198 TRADER2 BUY 52 50 1773180328151 -TRADE 5e3586db-0b48-4c10-bdcd-daca7d0ce198 50babf85-2f52-44d7-b02b-78653bcfa0c0 52 50 1773180328152 -TRADE_SETTLED: 5e3586db-0b48-4c10-bdcd-daca7d0ce198 <-> 50babf85-2f52-44d7-b02b-78653bcfa0c0 -ORDER_PLACED: 857255b7-251a-41c4-8c1c-813aa64cce41 -ORDER 857255b7-251a-41c4-8c1c-813aa64cce41 HOUSE_BOT SELL 52 500 1773180526243 -ORDER_PLACED: 93c5368c-c8cb-4b48-9376-c7025e61548e -ORDER 93c5368c-c8cb-4b48-9376-c7025e61548e HOUSE_BOT SELL 52 500 1773180526351 -ORDER_PLACED: 27baed26-7b91-4e97-9a81-cfa552da5385 -ORDER 27baed26-7b91-4e97-9a81-cfa552da5385 TRADER BUY 52 100 1773180554676 -TRADE 27baed26-7b91-4e97-9a81-cfa552da5385 857255b7-251a-41c4-8c1c-813aa64cce41 52 100 1773180554677 -TRADE_SETTLED: 27baed26-7b91-4e97-9a81-cfa552da5385 <-> 857255b7-251a-41c4-8c1c-813aa64cce41 -ORDER_PLACED: HOUSE_BOT-FINAL_Y-SELL-1773180610141 -ORDER HOUSE_BOT-FINAL_Y-SELL-1773180610141 HOUSE_BOT SELL 52 500 1773180610141 -ORDER_PLACED: HOUSE_BOT-FINAL_N-SELL-1773180610249 -ORDER HOUSE_BOT-FINAL_N-SELL-1773180610249 HOUSE_BOT SELL 52 500 1773180610249 -ORDER_PLACED: ffec44af-35e2-42dc-8c26-1b907a3c7c08 -ORDER ffec44af-35e2-42dc-8c26-1b907a3c7c08 TEST_USER BUY 52 50 1773180612508 -TRADE ffec44af-35e2-42dc-8c26-1b907a3c7c08 HOUSE_BOT-FINAL_Y-SELL-1773180610141 52 50 1773180612510 -TRADE_SETTLED: ffec44af-35e2-42dc-8c26-1b907a3c7c08 <-> HOUSE_BOT-FINAL_Y-SELL-1773180610141 -ORDER_PLACED: HOUSE_BOT-FINAL_Y-SELL-1773180612515 -ORDER HOUSE_BOT-FINAL_Y-SELL-1773180612515 HOUSE_BOT SELL 52 500 1773180612515 -ORDER_PLACED: HOUSE_BOT-FINAL_N-SELL-1773180612616 -ORDER HOUSE_BOT-FINAL_N-SELL-1773180612616 HOUSE_BOT SELL 52 500 1773180612616 -ORDER_PLACED: 61b5c74b-0a60-417b-ac6e-949bda9047b6 -ORDER 61b5c74b-0a60-417b-ac6e-949bda9047b6 TEST_USER2 BUY 52 50 1773180644089 -TRADE 61b5c74b-0a60-417b-ac6e-949bda9047b6 HOUSE_BOT-FINAL_Y-SELL-1773180612515 52 50 1773180644091 -TRADE_SETTLED: 61b5c74b-0a60-417b-ac6e-949bda9047b6 <-> HOUSE_BOT-FINAL_Y-SELL-1773180612515 -ORDER_PLACED: HOUSE_BOT-FINAL_Y-SELL-1773180644093 -ORDER HOUSE_BOT-FINAL_Y-SELL-1773180644093 HOUSE_BOT SELL 52 500 1773180644093 -ORDER_PLACED: HOUSE_BOT-FINAL_N-SELL-1773180644199 -ORDER HOUSE_BOT-FINAL_N-SELL-1773180644199 HOUSE_BOT SELL 52 500 1773180644199 -ORDER_PLACED: HOUSE_BOT-LAKERS_Y-SELL-1773180714856 -ORDER HOUSE_BOT-LAKERS_Y-SELL-1773180714856 HOUSE_BOT SELL 52 500 1773180714856 -ORDER_PLACED: HOUSE_BOT-LAKERS_N-SELL-1773180714963 -ORDER HOUSE_BOT-LAKERS_N-SELL-1773180714963 HOUSE_BOT SELL 52 500 1773180714963 -ORDER_PLACED: df2f3319-dd7e-4494-9060-6dd02491f654 -ORDER df2f3319-dd7e-4494-9060-6dd02491f654 TRADER1 BUY 52 100 1773182089056 -ORDER_PLACED: HOUSE_BOT-FIX_Y-SELL-1773182231959 -ORDER HOUSE_BOT-FIX_Y-SELL-1773182231959 HOUSE_BOT SELL 52 500 1773182231959 -ORDER_PLACED: HOUSE_BOT-FIX_N-SELL-1773182232068 -ORDER HOUSE_BOT-FIX_N-SELL-1773182232068 HOUSE_BOT SELL 52 500 1773182232068 -ORDER_PLACED: HOUSE_BOT-SETTLE_Y-SELL-1773182489558 -ORDER HOUSE_BOT-SETTLE_Y-SELL-1773182489558 HOUSE_BOT SELL 52 500 1773182489558 -ORDER_PLACED: HOUSE_BOT-SETTLE_N-SELL-1773182489666 -ORDER HOUSE_BOT-SETTLE_N-SELL-1773182489666 HOUSE_BOT SELL 52 500 1773182489666 -ORDER_PLACED: ae9ef9c4-1eed-4a3a-a0b2-9423d5f349d2 -ORDER ae9ef9c4-1eed-4a3a-a0b2-9423d5f349d2 BLOCK_TEST BUY 52 100 1773182491902 -ORDER_PLACED: HOUSE_BOT-FRESH_Y-SELL-1773182557013 -ORDER HOUSE_BOT-FRESH_Y-SELL-1773182557013 HOUSE_BOT SELL 52 500 1773182557013 -ORDER_PLACED: HOUSE_BOT-FRESH_N-SELL-1773182557125 -ORDER HOUSE_BOT-FRESH_N-SELL-1773182557125 HOUSE_BOT SELL 52 500 1773182557125 -ORDER_PLACED: d0c1f18e-4498-4330-b0c6-07ea30fa05a6 -ORDER d0c1f18e-4498-4330-b0c6-07ea30fa05a6 FRESH_USER BUY 52 100 1773182567228 -ORDER_PLACED: HOUSE_BOT-FINAL_Y-SELL-1773182608916 -ORDER HOUSE_BOT-FINAL_Y-SELL-1773182608916 HOUSE_BOT SELL 52 500 1773182608916 -ORDER_PLACED: HOUSE_BOT-FINAL_N-SELL-1773182609027 -ORDER HOUSE_BOT-FINAL_N-SELL-1773182609027 HOUSE_BOT SELL 52 500 1773182609027 -ORDER_PLACED: 07818452-8d0f-42c5-8c96-bde654e88df9 -ORDER 07818452-8d0f-42c5-8c96-bde654e88df9 BLOCK_USER BUY 52 100 1773182611196 -ORDER_PLACED: HOUSE_BOT-ENUM_Y-SELL-1773182929676 -ORDER HOUSE_BOT-ENUM_Y-SELL-1773182929676 HOUSE_BOT SELL 52 500 1773182929676 -ORDER_PLACED: HOUSE_BOT-ENUM_N-SELL-1773182929781 -ORDER HOUSE_BOT-ENUM_N-SELL-1773182929781 HOUSE_BOT SELL 52 500 1773182929781 -ORDER_PLACED: HOUSE_BOT-E2E_Y-SELL-1773183005330 -ORDER HOUSE_BOT-E2E_Y-SELL-1773183005330 HOUSE_BOT SELL 52 500 1773183005330 -ORDER_PLACED: HOUSE_BOT-E2E_N-SELL-1773183005332 -ORDER HOUSE_BOT-E2E_N-SELL-1773183005332 HOUSE_BOT SELL 52 500 1773183005332 -ORDER_PLACED: HOUSE_BOT-E2E_Y-SELL-1773183131060 -ORDER HOUSE_BOT-E2E_Y-SELL-1773183131060 HOUSE_BOT SELL 52 500 1773183131060 -ORDER_PLACED: HOUSE_BOT-E2E_N-SELL-1773183131061 -ORDER HOUSE_BOT-E2E_N-SELL-1773183131061 HOUSE_BOT SELL 52 500 1773183131061 -ORDER_PLACED: 15edb532-ebe5-4587-82b1-22a2927369f2 -ORDER 15edb532-ebe5-4587-82b1-22a2927369f2 E2E_TRADER BUY 52 100 1773183166506 -TRADE 15edb532-ebe5-4587-82b1-22a2927369f2 HOUSE_BOT-E2E_Y-SELL-1773183131060 52 100 1773183166507 -TRADE_SETTLED: 15edb532-ebe5-4587-82b1-22a2927369f2 <-> HOUSE_BOT-E2E_Y-SELL-1773183131060 -ORDER_PLACED: HOUSE_BOT-E2E_Y-SELL-1773183166514 -ORDER HOUSE_BOT-E2E_Y-SELL-1773183166514 HOUSE_BOT SELL 52 500 1773183166514 -ORDER_PLACED: HOUSE_BOT-E2E_N-SELL-1773183166514 -ORDER HOUSE_BOT-E2E_N-SELL-1773183166514 HOUSE_BOT SELL 52 500 1773183166514 -ORDER_PLACED: HOUSE_BOT-DEBUG_Y-SELL-1773183287280 -ORDER HOUSE_BOT-DEBUG_Y-SELL-1773183287280 HOUSE_BOT SELL 52 500 1773183287280 -ORDER_PLACED: HOUSE_BOT-DEBUG_N-SELL-1773183287284 -ORDER HOUSE_BOT-DEBUG_N-SELL-1773183287284 HOUSE_BOT SELL 52 500 1773183287284 -ORDER_PLACED: HOUSE_BOT-TRACE_Y-SELL-1773183356717 -ORDER HOUSE_BOT-TRACE_Y-SELL-1773183356717 HOUSE_BOT SELL 52 500 1773183356717 -ORDER_PLACED: HOUSE_BOT-TRACE_N-SELL-1773183356722 -ORDER HOUSE_BOT-TRACE_N-SELL-1773183356722 HOUSE_BOT SELL 52 500 1773183356722 -ORDER_PLACED: HOUSE_BOT-CASH_Y-BUY-1773183416028 -ORDER HOUSE_BOT-CASH_Y-BUY-1773183416028 HOUSE_BOT BUY 48 500 1773183416028 -ORDER_PLACED: HOUSE_BOT-CASH_Y-SELL-1773183416033 -ORDER HOUSE_BOT-CASH_Y-SELL-1773183416033 HOUSE_BOT SELL 52 500 1773183416033 -ORDER_PLACED: HOUSE_BOT-CASH_N-BUY-1773183416034 -ORDER HOUSE_BOT-CASH_N-BUY-1773183416034 HOUSE_BOT BUY 48 500 1773183416034 -ORDER_PLACED: HOUSE_BOT-CASH_N-SELL-1773183416034 -ORDER HOUSE_BOT-CASH_N-SELL-1773183416034 HOUSE_BOT SELL 52 500 1773183416034 -ORDER_PLACED: HOUSE_BOT-CASH_Y-BUY-1773183490652 -ORDER HOUSE_BOT-CASH_Y-BUY-1773183490652 HOUSE_BOT BUY 48 500 1773183490652 -ORDER_PLACED: HOUSE_BOT-CASH_Y-SELL-1773183490653 -ORDER HOUSE_BOT-CASH_Y-SELL-1773183490653 HOUSE_BOT SELL 52 500 1773183490653 -ORDER_PLACED: HOUSE_BOT-CASH_N-BUY-1773183490653 -ORDER HOUSE_BOT-CASH_N-BUY-1773183490653 HOUSE_BOT BUY 48 500 1773183490653 -ORDER_PLACED: HOUSE_BOT-CASH_N-SELL-1773183490653 -ORDER HOUSE_BOT-CASH_N-SELL-1773183490653 HOUSE_BOT SELL 52 500 1773183490653 -ORDER_PLACED: a08fd557-f51b-47c3-9dce-72cd6878db5d -ORDER a08fd557-f51b-47c3-9dce-72cd6878db5d TRADER_TEST BUY 52 100 1773183525895 -TRADE a08fd557-f51b-47c3-9dce-72cd6878db5d HOUSE_BOT-CASH_Y-SELL-1773183490653 52 100 1773183525897 -TRADE_SETTLED: a08fd557-f51b-47c3-9dce-72cd6878db5d <-> HOUSE_BOT-CASH_Y-SELL-1773183490653 -ORDER_PLACED: HOUSE_BOT-CASH_Y-BUY-1773183525900 -ORDER HOUSE_BOT-CASH_Y-BUY-1773183525900 HOUSE_BOT BUY 48 500 1773183525900 -ORDER_PLACED: HOUSE_BOT-CASH_Y-SELL-1773183525901 -ORDER HOUSE_BOT-CASH_Y-SELL-1773183525901 HOUSE_BOT SELL 52 500 1773183525901 -ORDER_PLACED: HOUSE_BOT-CASH_N-BUY-1773183525901 -ORDER HOUSE_BOT-CASH_N-BUY-1773183525901 HOUSE_BOT BUY 48 500 1773183525901 -ORDER_PLACED: HOUSE_BOT-CASH_N-SELL-1773183525902 -ORDER HOUSE_BOT-CASH_N-SELL-1773183525902 HOUSE_BOT SELL 52 500 1773183525902 -ORDER_PLACED: HOUSE_BOT-PROD_Y-BUY-1773183593439 -ORDER HOUSE_BOT-PROD_Y-BUY-1773183593439 HOUSE_BOT BUY 48 500 1773183593440 -ORDER_PLACED: HOUSE_BOT-PROD_Y-SELL-1773183593442 -ORDER HOUSE_BOT-PROD_Y-SELL-1773183593442 HOUSE_BOT SELL 52 500 1773183593442 -ORDER_PLACED: HOUSE_BOT-PROD_N-BUY-1773183593443 -ORDER HOUSE_BOT-PROD_N-BUY-1773183593443 HOUSE_BOT BUY 48 500 1773183593443 -ORDER_PLACED: HOUSE_BOT-PROD_N-SELL-1773183593443 -ORDER HOUSE_BOT-PROD_N-SELL-1773183593443 HOUSE_BOT SELL 52 500 1773183593443 -ORDER_PLACED: 6d3c662b-89c8-484d-98be-bd5d5e39b76a -ORDER 6d3c662b-89c8-484d-98be-bd5d5e39b76a PROD_TRADER BUY 52 50 1773183601183 -TRADE 6d3c662b-89c8-484d-98be-bd5d5e39b76a HOUSE_BOT-PROD_Y-SELL-1773183593442 52 50 1773183601184 -TRADE_SETTLED: 6d3c662b-89c8-484d-98be-bd5d5e39b76a <-> HOUSE_BOT-PROD_Y-SELL-1773183593442 -ORDER_PLACED: HOUSE_BOT-PROD_Y-BUY-1773183601186 -ORDER HOUSE_BOT-PROD_Y-BUY-1773183601186 HOUSE_BOT BUY 48 500 1773183601186 -ORDER_PLACED: HOUSE_BOT-PROD_Y-SELL-1773183601186 -ORDER HOUSE_BOT-PROD_Y-SELL-1773183601186 HOUSE_BOT SELL 52 500 1773183601186 -ORDER_PLACED: HOUSE_BOT-PROD_N-BUY-1773183601186 -ORDER HOUSE_BOT-PROD_N-BUY-1773183601186 HOUSE_BOT BUY 48 500 1773183601186 -ORDER_PLACED: HOUSE_BOT-PROD_N-SELL-1773183601186 -ORDER HOUSE_BOT-PROD_N-SELL-1773183601186 HOUSE_BOT SELL 52 500 1773183601186 -ORDER_PLACED: HOUSE_BOT-KALSHI_Y-BUY-1773186148086 -ORDER HOUSE_BOT-KALSHI_Y-BUY-1773186148086 HOUSE_BOT BUY 48 500 1773186148086 -ORDER_PLACED: HOUSE_BOT-KALSHI_Y-SELL-1773186148094 -ORDER HOUSE_BOT-KALSHI_Y-SELL-1773186148094 HOUSE_BOT SELL 52 500 1773186148094 -ORDER_PLACED: HOUSE_BOT-KALSHI_N-BUY-1773186148095 -ORDER HOUSE_BOT-KALSHI_N-BUY-1773186148095 HOUSE_BOT BUY 48 500 1773186148095 -ORDER_PLACED: HOUSE_BOT-KALSHI_N-SELL-1773186148095 -ORDER HOUSE_BOT-KALSHI_N-SELL-1773186148095 HOUSE_BOT SELL 52 500 1773186148095 -ORDER_PLACED: 244dc1b4-7f6c-4c2f-b0d7-34e313624c6e -ORDER 244dc1b4-7f6c-4c2f-b0d7-34e313624c6e KALSHI_TRADER BUY 52 100 1773186172195 -TRADE 244dc1b4-7f6c-4c2f-b0d7-34e313624c6e HOUSE_BOT-KALSHI_Y-SELL-1773186148094 52 100 1773186172195 -TRADE_SETTLED: 244dc1b4-7f6c-4c2f-b0d7-34e313624c6e <-> HOUSE_BOT-KALSHI_Y-SELL-1773186148094 -ORDER_PLACED: HOUSE_BOT-KALSHI_Y-BUY-1773186172198 -ORDER HOUSE_BOT-KALSHI_Y-BUY-1773186172198 HOUSE_BOT BUY 48 500 1773186172198 -ORDER_PLACED: HOUSE_BOT-KALSHI_Y-SELL-1773186172198 -ORDER HOUSE_BOT-KALSHI_Y-SELL-1773186172198 HOUSE_BOT SELL 52 500 1773186172198 -ORDER_PLACED: HOUSE_BOT-KALSHI_N-BUY-1773186172198 -ORDER HOUSE_BOT-KALSHI_N-BUY-1773186172198 HOUSE_BOT BUY 48 500 1773186172198 -ORDER_PLACED: HOUSE_BOT-KALSHI_N-SELL-1773186172198 -ORDER HOUSE_BOT-KALSHI_N-SELL-1773186172198 HOUSE_BOT SELL 52 500 1773186172198 -ORDER_PLACED: HOUSE_BOT-SETTLE_Y-BUY-1773186369960 -ORDER HOUSE_BOT-SETTLE_Y-BUY-1773186369960 HOUSE_BOT BUY 48 500 1773186369960 -ORDER_PLACED: HOUSE_BOT-SETTLE_Y-SELL-1773186369964 -ORDER HOUSE_BOT-SETTLE_Y-SELL-1773186369964 HOUSE_BOT SELL 52 500 1773186369964 -ORDER_PLACED: HOUSE_BOT-SETTLE_N-BUY-1773186369964 -ORDER HOUSE_BOT-SETTLE_N-BUY-1773186369964 HOUSE_BOT BUY 48 500 1773186369964 -ORDER_PLACED: HOUSE_BOT-SETTLE_N-SELL-1773186369964 -ORDER HOUSE_BOT-SETTLE_N-SELL-1773186369964 HOUSE_BOT SELL 52 500 1773186369964 -ORDER_PLACED: HOUSE_BOT-KALSHI_YES-BUY-1773186383923 -ORDER HOUSE_BOT-KALSHI_YES-BUY-1773186383923 HOUSE_BOT BUY 48 500 1773186383923 -ORDER_PLACED: HOUSE_BOT-KALSHI_YES-SELL-1773186383924 -ORDER HOUSE_BOT-KALSHI_YES-SELL-1773186383924 HOUSE_BOT SELL 52 500 1773186383924 -ORDER_PLACED: HOUSE_BOT-KALSHI_NO-BUY-1773186383925 -ORDER HOUSE_BOT-KALSHI_NO-BUY-1773186383925 HOUSE_BOT BUY 48 500 1773186383925 -ORDER_PLACED: HOUSE_BOT-KALSHI_NO-SELL-1773186383925 -ORDER HOUSE_BOT-KALSHI_NO-SELL-1773186383925 HOUSE_BOT SELL 52 500 1773186383925 -ORDER_PLACED: 68649056-e19a-40dc-b643-e339a6bd60ec -ORDER 68649056-e19a-40dc-b643-e339a6bd60ec KALSHI_USER BUY 52 100 1773186389481 -TRADE 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-ORDER_PLACED: HOUSE_BOT-DEBUG_N-BUY-1773196703287 -ORDER HOUSE_BOT-DEBUG_N-BUY-1773196703287 HOUSE_BOT BUY 48 500 1773196703287 -ORDER_PLACED: HOUSE_BOT-DEBUG_N-SELL-1773196703288 -ORDER HOUSE_BOT-DEBUG_N-SELL-1773196703288 HOUSE_BOT SELL 52 500 1773196703288 -ORDER_PLACED: 0797e709-d3d0-4b79-ac88-a5f6bfa736d9 -ORDER 0797e709-d3d0-4b79-ac88-a5f6bfa736d9 DEBUG_USER BUY 52 100 1773196727276 -TRADE 0797e709-d3d0-4b79-ac88-a5f6bfa736d9 HOUSE_BOT-DEBUG_Y-SELL-1773196703287 52 100 1773196727277 -TRADE_SETTLED: 0797e709-d3d0-4b79-ac88-a5f6bfa736d9 <-> HOUSE_BOT-DEBUG_Y-SELL-1773196703287 -ORDER_PLACED: HOUSE_BOT-DEBUG_Y-BUY-1773196727280 -ORDER HOUSE_BOT-DEBUG_Y-BUY-1773196727280 HOUSE_BOT BUY 48 500 1773196727280 -ORDER_PLACED: HOUSE_BOT-DEBUG_Y-SELL-1773196727280 -ORDER HOUSE_BOT-DEBUG_Y-SELL-1773196727280 HOUSE_BOT SELL 52 500 1773196727280 -ORDER_PLACED: HOUSE_BOT-DEBUG_N-BUY-1773196727281 -ORDER HOUSE_BOT-DEBUG_N-BUY-1773196727281 HOUSE_BOT BUY 48 500 1773196727281 -ORDER_PLACED: 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1773197042883 -ORDER_PLACED: f6bf9d4a-34ea-4ffe-94a7-0fc764f4772e -ORDER f6bf9d4a-34ea-4ffe-94a7-0fc764f4772e TRADER_1 BUY 52 200 1773197152241 -TRADE f6bf9d4a-34ea-4ffe-94a7-0fc764f4772e HOUSE_BOT-SEQ_Y-SELL-1773197042883 52 200 1773197152246 -TRADE_SETTLED: f6bf9d4a-34ea-4ffe-94a7-0fc764f4772e <-> HOUSE_BOT-SEQ_Y-SELL-1773197042883 -ORDER_PLACED: HOUSE_BOT-SEQ_Y-BUY-1773197152250 -ORDER HOUSE_BOT-SEQ_Y-BUY-1773197152250 HOUSE_BOT BUY 48 500 1773197152250 -ORDER_PLACED: HOUSE_BOT-SEQ_Y-SELL-1773197152250 -ORDER HOUSE_BOT-SEQ_Y-SELL-1773197152250 HOUSE_BOT SELL 52 500 1773197152250 -ORDER_PLACED: HOUSE_BOT-SEQ_N-BUY-1773197152250 -ORDER HOUSE_BOT-SEQ_N-BUY-1773197152250 HOUSE_BOT BUY 48 500 1773197152250 -ORDER_PLACED: HOUSE_BOT-SEQ_N-SELL-1773197152251 -ORDER HOUSE_BOT-SEQ_N-SELL-1773197152251 HOUSE_BOT SELL 52 500 1773197152251 -ORDER_PLACED: dc79abc1-6558-4ab2-9203-a639256b8b6f -ORDER dc79abc1-6558-4ab2-9203-a639256b8b6f TRADER_2 BUY 48 150 1773197259219 -ORDER_PLACED: 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HOUSE_BOT-ANA_Y-SELL-1773197833981 52 200 1773197852167 -TRADE_SETTLED: f29e1458-f71b-4f0e-b6bc-9759e1e1e8c9 <-> HOUSE_BOT-ANA_Y-SELL-1773197833981 -ORDER_PLACED: HOUSE_BOT-ANA_Y-BUY-1773197852169 -ORDER HOUSE_BOT-ANA_Y-BUY-1773197852169 HOUSE_BOT BUY 48 500 1773197852169 -ORDER_PLACED: HOUSE_BOT-ANA_Y-SELL-1773197852169 -ORDER HOUSE_BOT-ANA_Y-SELL-1773197852169 HOUSE_BOT SELL 52 500 1773197852169 -ORDER_PLACED: HOUSE_BOT-ANA_N-BUY-1773197852169 -ORDER HOUSE_BOT-ANA_N-BUY-1773197852169 HOUSE_BOT BUY 48 500 1773197852169 -ORDER_PLACED: HOUSE_BOT-ANA_N-SELL-1773197852169 -ORDER HOUSE_BOT-ANA_N-SELL-1773197852169 HOUSE_BOT SELL 52 500 1773197852169 -ORDER_PLACED: 4fbee2ad-8f7b-4ca9-8ce5-ab1da70386c7 -ORDER 4fbee2ad-8f7b-4ca9-8ce5-ab1da70386c7 TRADER_ANALYSIS_2 BUY 48 150 1773197867077 -ORDER_PLACED: f3026e2a-e187-4167-983c-ae86fd5d08b8 -ORDER f3026e2a-e187-4167-983c-ae86fd5d08b8 TRADER_ANALYSIS_2 BUY 52 150 1773197914709 -TRADE f3026e2a-e187-4167-983c-ae86fd5d08b8 HOUSE_BOT-ANA_N-SELL-1773197852169 52 150 1773197914711 -TRADE_SETTLED: f3026e2a-e187-4167-983c-ae86fd5d08b8 <-> HOUSE_BOT-ANA_N-SELL-1773197852169 -ORDER_PLACED: HOUSE_BOT-FIX_Y-BUY-1773198020183 -ORDER HOUSE_BOT-FIX_Y-BUY-1773198020183 HOUSE_BOT BUY 48 500 1773198020183 -ORDER_PLACED: HOUSE_BOT-FIX_Y-SELL-1773198020186 -ORDER HOUSE_BOT-FIX_Y-SELL-1773198020186 HOUSE_BOT SELL 52 500 1773198020186 -ORDER_PLACED: HOUSE_BOT-FIX_N-BUY-1773198020186 -ORDER HOUSE_BOT-FIX_N-BUY-1773198020186 HOUSE_BOT BUY 48 500 1773198020186 -ORDER_PLACED: HOUSE_BOT-FIX_N-SELL-1773198020186 -ORDER HOUSE_BOT-FIX_N-SELL-1773198020186 HOUSE_BOT SELL 52 500 1773198020186 -ORDER_PLACED: f8677342-1636-4461-adb3-dc706eeec950 -ORDER f8677342-1636-4461-adb3-dc706eeec950 TRADER_FIX_1 BUY 52 200 1773198028364 -TRADE f8677342-1636-4461-adb3-dc706eeec950 HOUSE_BOT-FIX_Y-SELL-1773198020186 52 200 1773198028365 -TRADE_SETTLED: f8677342-1636-4461-adb3-dc706eeec950 <-> HOUSE_BOT-FIX_Y-SELL-1773198020186 -ORDER_PLACED: 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e64d3874-e13d-4baa-863d-a6a0a16d24c1 HOUSE_BOT-PROD_Y-SELL-1773198230867 52 300 1773198322128 -TRADE_SETTLED: e64d3874-e13d-4baa-863d-a6a0a16d24c1 <-> HOUSE_BOT-PROD_Y-SELL-1773198230867 -ORDER_PLACED: HOUSE_BOT-PROD_Y-BUY-1773198322130 -ORDER HOUSE_BOT-PROD_Y-BUY-1773198322130 HOUSE_BOT BUY 48 500 1773198322130 -ORDER_PLACED: HOUSE_BOT-PROD_Y-SELL-1773198322130 -ORDER HOUSE_BOT-PROD_Y-SELL-1773198322130 HOUSE_BOT SELL 52 500 1773198322130 -ORDER_PLACED: HOUSE_BOT-PROD_N-BUY-1773198322130 -ORDER HOUSE_BOT-PROD_N-BUY-1773198322130 HOUSE_BOT BUY 48 500 1773198322130 -ORDER_PLACED: HOUSE_BOT-PROD_N-SELL-1773198322130 -ORDER HOUSE_BOT-PROD_N-SELL-1773198322130 HOUSE_BOT SELL 52 500 1773198322130 -ORDER_PLACED: 18f747fb-7173-4f44-956b-92a9140b7581 -ORDER 18f747fb-7173-4f44-956b-92a9140b7581 PROD_TRADER_2 BUY 52 200 1773198417372 -TRADE 18f747fb-7173-4f44-956b-92a9140b7581 HOUSE_BOT-PROD_N-SELL-1773198322130 52 200 1773198417373 -TRADE_SETTLED: 18f747fb-7173-4f44-956b-92a9140b7581 <-> HOUSE_BOT-PROD_N-SELL-1773198322130 -ORDER_PLACED: HOUSE_BOT-PROD_Y-BUY-1773198417376 -ORDER HOUSE_BOT-PROD_Y-BUY-1773198417376 HOUSE_BOT BUY 48 500 1773198417376 -ORDER_PLACED: HOUSE_BOT-PROD_Y-SELL-1773198417376 -ORDER HOUSE_BOT-PROD_Y-SELL-1773198417376 HOUSE_BOT SELL 52 500 1773198417376 -ORDER_PLACED: HOUSE_BOT-PROD_N-BUY-1773198417376 -ORDER HOUSE_BOT-PROD_N-BUY-1773198417376 HOUSE_BOT BUY 48 500 1773198417376 -ORDER_PLACED: HOUSE_BOT-PROD_N-SELL-1773198417376 -ORDER HOUSE_BOT-PROD_N-SELL-1773198417376 HOUSE_BOT SELL 52 500 1773198417376 -ORDER_PLACED: 51ab4eef-3879-4bad-a89d-49b32f218615 -ORDER 51ab4eef-3879-4bad-a89d-49b32f218615 PROD_TRADER_1 BUY 52 150 1773198496269 -TRADE 51ab4eef-3879-4bad-a89d-49b32f218615 HOUSE_BOT-PROD_Y-SELL-1773198417376 52 150 1773198496271 -TRADE_SETTLED: 51ab4eef-3879-4bad-a89d-49b32f218615 <-> HOUSE_BOT-PROD_Y-SELL-1773198417376 -ORDER_PLACED: HOUSE_BOT-PROD_Y-BUY-1773198496275 -ORDER HOUSE_BOT-PROD_Y-BUY-1773198496275 HOUSE_BOT BUY 48 500 1773198496275 -ORDER_PLACED: HOUSE_BOT-PROD_Y-SELL-1773198496275 -ORDER HOUSE_BOT-PROD_Y-SELL-1773198496275 HOUSE_BOT SELL 52 500 1773198496275 -ORDER_PLACED: HOUSE_BOT-PROD_N-BUY-1773198496275 -ORDER HOUSE_BOT-PROD_N-BUY-1773198496275 HOUSE_BOT BUY 48 500 1773198496275 -ORDER_PLACED: HOUSE_BOT-PROD_N-SELL-1773198496275 -ORDER HOUSE_BOT-PROD_N-SELL-1773198496275 HOUSE_BOT SELL 52 500 1773198496275 -ORDER_PLACED: HOUSE_BOT-HIGH_Y-BUY-1773271518730 -ORDER HOUSE_BOT-HIGH_Y-BUY-1773271518730 HOUSE_BOT BUY 49 500 1773271518730 -ORDER_PLACED: HOUSE_BOT-HIGH_Y-SELL-1773271518733 -ORDER HOUSE_BOT-HIGH_Y-SELL-1773271518733 HOUSE_BOT SELL 51 500 1773271518733 -ORDER_PLACED: HOUSE_BOT-HIGH_N-BUY-1773271518734 -ORDER HOUSE_BOT-HIGH_N-BUY-1773271518734 HOUSE_BOT BUY 49 500 1773271518734 -ORDER_PLACED: HOUSE_BOT-HIGH_N-SELL-1773271518734 -ORDER HOUSE_BOT-HIGH_N-SELL-1773271518734 HOUSE_BOT SELL 51 500 1773271518734 -ORDER_PLACED: HOUSE_BOT-LOW_Y-BUY-1773271518765 -ORDER HOUSE_BOT-LOW_Y-BUY-1773271518765 HOUSE_BOT BUY 49 500 1773271518765 -ORDER_PLACED: HOUSE_BOT-LOW_Y-SELL-1773271518766 -ORDER HOUSE_BOT-LOW_Y-SELL-1773271518766 HOUSE_BOT SELL 51 500 1773271518766 -ORDER_PLACED: HOUSE_BOT-LOW_N-BUY-1773271518766 -ORDER HOUSE_BOT-LOW_N-BUY-1773271518766 HOUSE_BOT BUY 49 500 1773271518766 -ORDER_PLACED: HOUSE_BOT-LOW_N-SELL-1773271518766 -ORDER HOUSE_BOT-LOW_N-SELL-1773271518766 HOUSE_BOT SELL 51 500 1773271518766 -ORDER_PLACED: 679b5ac5-a1f1-4a2a-8a7f-4678f47ca89d -ORDER 679b5ac5-a1f1-4a2a-8a7f-4678f47ca89d LIQUIDITY_TRADER BUY 52 100 1773271525752 -TRADE 679b5ac5-a1f1-4a2a-8a7f-4678f47ca89d HOUSE_BOT-LOW_Y-SELL-1773271518766 51 100 1773271525752 -TRADE_SETTLED: 679b5ac5-a1f1-4a2a-8a7f-4678f47ca89d <-> HOUSE_BOT-LOW_Y-SELL-1773271518766 -ORDER_PLACED: HOUSE_BOT-LOW_Y-BUY-1773271525754 -ORDER HOUSE_BOT-LOW_Y-BUY-1773271525754 HOUSE_BOT BUY 51 500 1773271525754 -ORDER_PLACED: HOUSE_BOT-LOW_Y-SELL-1773271525754 -ORDER HOUSE_BOT-LOW_Y-SELL-1773271525754 HOUSE_BOT SELL 53 500 1773271525754 -ORDER_PLACED: HOUSE_BOT-LOW_N-BUY-1773271525754 -ORDER HOUSE_BOT-LOW_N-BUY-1773271525754 HOUSE_BOT BUY 47 500 1773271525754 -ORDER_PLACED: HOUSE_BOT-LOW_N-SELL-1773271525754 -ORDER HOUSE_BOT-LOW_N-SELL-1773271525754 HOUSE_BOT SELL 49 500 1773271525754 -<<<<<<< HEAD -ORDER_PLACED: HOUSE_BOT-EVENT_Y-BUY-1773272988202 -ORDER HOUSE_BOT-EVENT_Y-BUY-1773272988202 HOUSE_BOT BUY 49 500 1773272988202 -ORDER_PLACED: HOUSE_BOT-EVENT_Y-SELL-1773272988206 -ORDER HOUSE_BOT-EVENT_Y-SELL-1773272988206 HOUSE_BOT SELL 51 500 1773272988206 -ORDER_PLACED: HOUSE_BOT-EVENT_N-BUY-1773272988206 -ORDER HOUSE_BOT-EVENT_N-BUY-1773272988206 HOUSE_BOT BUY 49 500 1773272988206 -ORDER_PLACED: HOUSE_BOT-EVENT_N-SELL-1773272988206 -ORDER HOUSE_BOT-EVENT_N-SELL-1773272988206 HOUSE_BOT SELL 51 500 1773272988206 -ORDER_PLACED: cfcf2488-6beb-4bee-a72b-dd76e143af4d -ORDER cfcf2488-6beb-4bee-a72b-dd76e143af4d STOCK_TRADER BUY 52 100 1773272994015 -TRADE cfcf2488-6beb-4bee-a72b-dd76e143af4d HOUSE_BOT-EVENT_Y-SELL-1773272988206 51 100 1773272994015 -TRADE_SETTLED: cfcf2488-6beb-4bee-a72b-dd76e143af4d <-> HOUSE_BOT-EVENT_Y-SELL-1773272988206 -ORDER_PLACED: HOUSE_BOT-EVENT_Y-BUY-1773272994020 -ORDER HOUSE_BOT-EVENT_Y-BUY-1773272994020 HOUSE_BOT BUY 49 500 1773272994020 -ORDER_PLACED: HOUSE_BOT-EVENT_Y-SELL-1773272994021 -ORDER HOUSE_BOT-EVENT_Y-SELL-1773272994021 HOUSE_BOT SELL 51 500 1773272994021 -ORDER_PLACED: HOUSE_BOT-EVENT_N-BUY-1773272994021 -ORDER HOUSE_BOT-EVENT_N-BUY-1773272994021 HOUSE_BOT BUY 49 500 1773272994021 -ORDER_PLACED: HOUSE_BOT-EVENT_N-SELL-1773272994021 -ORDER HOUSE_BOT-EVENT_N-SELL-1773272994021 HOUSE_BOT SELL 51 500 1773272994021 -ORDER_PLACED: 528ff941-d66a-495e-9f51-687ce8ec7d84 -ORDER 528ff941-d66a-495e-9f51-687ce8ec7d84 STOCK_TRADER BUY 150 10 1773272994036 -======= ->>>>>>> cb3b478 ( liquidity feature parameter/arg added! and latest final ready max1) diff --git a/matching-engine/matching-engine.iml b/matching-engine/matching-engine.iml deleted file mode 100644 index 867655b..0000000 --- a/matching-engine/matching-engine.iml +++ /dev/null @@ -1,67 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/matching-engine/pom.xml b/matching-engine/pom.xml deleted file mode 100644 index 8e0bcd4..0000000 --- a/matching-engine/pom.xml +++ /dev/null @@ -1,50 +0,0 @@ - - - 4.0.0 - - - org.springframework.boot - spring-boot-starter-parent - 3.2.2 - - - - org.example - matching-engine - 1.0-SNAPSHOT - - - - - org.example - common - 1.0-SNAPSHOT - - - org.springframework.boot - spring-boot-starter-web - - - org.springframework.boot - spring-boot-starter-validation - - - org.projectlombok - lombok - true - - - org.springframework.boot - spring-boot-starter - - - - org.junit.jupiter - junit-jupiter - 5.10.0 - test - - - \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java b/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java deleted file mode 100644 index 3c692ba..0000000 --- a/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java +++ /dev/null @@ -1,147 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.RequiredArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.model.Reservation; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; // Add this import - -import java.util.Collection; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service // Tells Spring this is a managed bean -@RequiredArgsConstructor -public class InMemoryWalletService implements WalletService { - - private final Map wallets = new ConcurrentHashMap<>(); - private final Map reservations = new ConcurrentHashMap<>(); - private final OrderRepository orderRepository; - private final String INSTRUMENT = "MARKET"; - - private Wallet ensureWallet(String userId) { - return wallets.computeIfAbsent(userId, k -> new Wallet(userId)); - } - - @Override - public boolean reserveForOrder(Order order) { - String userId = order.getUserId(); - String instrument = order.getInstrument(); - Wallet w = ensureWallet(userId); - - if (order.getSide().name().equals("BUY")) { - long required = order.getPrice() * (long) order.getQuantity(); - if (!w.tryReserveCash(required)) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), true, instrument); - r.setReservedCash(required); - reservations.put(order.getId(), r); - } else { - if (!w.tryReserveShares(instrument, order.getQuantity())) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), false, instrument); - r.setReservedShares(order.getQuantity()); - reservations.put(order.getId(), r); - } - return true; - } - - -@Override -public void releaseReservation(String orderId){ - Reservation r = reservations.remove(orderId); - if(r==null)return; - Wallet w = ensureWallet(r.getUserId()); - if(r.getIsBuy()){ - w.releaseReserveCash(r.getReservedCash()); - - }else{ - w.releaseReservedShares(r.getInstrument(),r.getReservedShares()); - - } - } - - @Override - public void creditUserShares(String userId, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(INSTRUMENT, shares); - } - - @Override - public void creditUserShares(String userId, String instrument, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(instrument, shares); - } - - @Override - public void creditUserCash(String userId, long cash) { - Wallet w = ensureWallet(userId); - w.addAvailableCash(cash); - } - - @Override - public Wallet getWallet(String userId) { - return wallets.get(userId); - } - - @Override - public void settleTrade(Trade trade) { - Order buy = orderRepository.findById(trade.getBuyOrderId()).orElse(null); - Order sell = orderRepository.findById(trade.getSellOrderId()).orElse(null); - - if (buy == null || sell == null) return; - - Wallet buyerWallet = ensureWallet(buy.getUserId()); - Wallet sellerWallet = ensureWallet(sell.getUserId()); - Reservation buyRes = reservations.get(buy.getId()); - Reservation sellRes = reservations.get(sell.getId()); - - int qty = (int) trade.getQuantity(); - long tradeValue = trade.getPrice() * (long) qty; - String instrument = buy.getInstrument(); - // Process Buy Side - if (buyRes != null) { - long cashtoDebitFromReserved = buyRes.reduceBy(qty); - buyerWallet.debitReservedCash(cashtoDebitFromReserved); - - long refund = cashtoDebitFromReserved - tradeValue; - if (refund > 0) { - buyerWallet.addAvailableCash(refund); - } - // Add back the remaining available cash that was tied up in reservation - // Available cash before reservation = current available + reserved - long totalCost = tradeValue; - long availableBeforeReservation = buyerWallet.getAvailableCash() + cashtoDebitFromReserved; - long shouldHaveAvailable = availableBeforeReservation - totalCost + refund; - long currentAvailable = buyerWallet.getAvailableCash(); - long cashToAdd = shouldHaveAvailable - currentAvailable; - if (cashToAdd > 0) { - buyerWallet.addAvailableCash(cashToAdd); - } - - buyerWallet.addAvailableShares(instrument, qty); - } - - // Process Sell Side - if (sellRes != null) { - sellRes.reduceBy(qty); - sellerWallet.debitReservedShares(instrument, (long) qty); - sellerWallet.addAvailableCash(tradeValue); - } - - // Cleanup completed reservations - if (buyRes != null && buyRes.getRemainingQty() == 0) { - reservations.remove(buy.getId()); - } - if (sellRes != null && sellRes.getRemainingQty() == 0) { - reservations.remove(sell.getId()); - } - } - - @Override - public Collection getAllWallets() { - return wallets.values(); - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java b/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java deleted file mode 100644 index a452b8a..0000000 --- a/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java +++ /dev/null @@ -1,34 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -@Service -public class RiskManager { - - private final WalletService walletService; - private final OrderRepository orderRepository; // 1. Add the field - - // No-arg constructor for Main.java usage - public RiskManager() { - this.walletService = null; - this.orderRepository = null; - } - - // Constructor for dependency injection - public RiskManager(WalletService walletService, OrderRepository orderRepository) { - this.walletService = walletService; - this.orderRepository = orderRepository; - } - - - public boolean checkAndReserve(Order order) { - // currently just delegates to walletService which performs the reserve attempt - //orderRepository.save(order); - - // 2. NOW ATTEMPT TO RESERVE - return walletService.reserveForOrder(order); - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java b/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java deleted file mode 100644 index c6f6f87..0000000 --- a/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java +++ /dev/null @@ -1,18 +0,0 @@ -package org.example.matching.Wallets; - -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; - -public interface WalletService { - boolean reserveForOrder(Order order); - void releaseReservation(String orderId); - void settleTrade(Trade trade); - - // Additional methods needed for testing and API - void creditUserShares(String userId, long shares); - void creditUserShares(String userId, String instrument, long shares); - void creditUserCash(String userId, long cash); - Wallet getWallet(String userId); - java.util.Collection getAllWallets(); -} diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java b/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java deleted file mode 100644 index 4bea993..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/controller/EventController.java +++ /dev/null @@ -1,47 +0,0 @@ -package org.example.matching.api.controller; - -import jdk.jfr.Event; -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.EventRequest; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.service.MarketManagmentService; -import org.example.matching.api.service.SettlementService; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -@RestController -@RequestMapping("/api/events") -@RequiredArgsConstructor -public class EventController { - private final MarketManagmentService managementService; - private final SettlementService settlementService; - - @PostMapping("/create") - public ResponseEntity create(@RequestBody EventRequest req) { - MarketEvent event = managementService.createEvent( - req.getId(), - req.getQuestions(), - req.getYesTicker(), - req.getNoTicker(), - req.getExpiry(), - req.getLiquidity() - ); - return ResponseEntity.ok(event); - } - - @GetMapping("/{id}") - public ResponseEntity getEvent(@PathVariable String id) { - MarketEvent event = managementService.getEvent(id); - if (event == null) { - return ResponseEntity.notFound().build(); - } - return ResponseEntity.ok(event); - } - - @PostMapping("/{id}/settle/{outcome}") - public ResponseEntity settle(@PathVariable String id, @PathVariable String outcome) { - settlementService.settleEvent(id, outcome); - return ResponseEntity.ok("Event " + id + " settled with outcome: " + outcome); - - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java b/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java deleted file mode 100644 index 3efdcc3..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java +++ /dev/null @@ -1,46 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.service.MarketDataService; -import org.example.matching.api.service.MarketManagmentService; -import org.example.matching.matching.MatchingEngine; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.GetMapping; -import org.springframework.web.bind.annotation.PathVariable; -import org.springframework.web.bind.annotation.RequestMapping; -import org.springframework.web.bind.annotation.RestController; - -import java.util.List; -import java.util.Map; - -@RequestMapping("/api/market") -@RestController -@RequiredArgsConstructor -public class MarketController { - private final MatchingEngine matchingEngine; - private final MarketDataService marketDataService; - private final MarketManagmentService marketManagmentService; - -// public MarketController(MatchingEngine matchingEngine) { -// this.matchingEngine = matchingEngine; -// } - - @GetMapping("/orderbook/{instrument}") - public ResponseEntity getOrderBook(@PathVariable String instrument) { - OrderBookResponse snapshot = matchingEngine.getSnapshot(instrument); - return ResponseEntity.ok(snapshot); - } - - @GetMapping("/ticker/{instrument}") - public ResponseEntity> getTicker(@PathVariable String instrument){ - return ResponseEntity.ok(marketDataService.getSnapshots(instrument.toUpperCase())); - } - - @GetMapping("/active") - public ResponseEntity> getActiveEvents() { - List activeEvents = marketManagmentService.getAllOpenEvents().stream().toList(); - return ResponseEntity.ok(activeEvents); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java b/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java deleted file mode 100644 index 7e6dacd..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java +++ /dev/null @@ -1,39 +0,0 @@ -package org.example.matching.api.controller; - -import jakarta.validation.Valid; -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.api.service.OrderService; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import javax.swing.text.html.parser.Entity; -import java.util.Optional; - -@RestController -@RequestMapping("/api/orders") -@RequiredArgsConstructor -public class OrderController { -private final OrderService orderService; -private final OrderRepository orderRepository; - - @PostMapping - public ResponseEntity placeOrder(@Valid @RequestBody OrderRequest request) { - OrderResponse response = orderService.processOrder(request); - - if (response.getStatus().equals("REJECTED")) { - return ResponseEntity.badRequest().body(response); - } - return ResponseEntity.ok(response); - } - - @GetMapping("/{id}") - public ResponseEntity getOrder(@PathVariable String id){ - return orderRepository.findById(id) - .map(ResponseEntity::ok) - .orElse(ResponseEntity.notFound().build()); - -}} diff --git a/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java b/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java deleted file mode 100644 index 2b0b3ba..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java +++ /dev/null @@ -1,59 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.DepositRequest; -import org.example.matching.api.dto.WalletResponse; -import org.example.matching.model.Wallet; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import java.util.Map; -import java.util.stream.Collectors; - -@RestController -@RequestMapping("/api/wallets") -@RequiredArgsConstructor -public class WalletController { - - private final WalletService walletService; - - @GetMapping("/{userId}") - public ResponseEntity getWallet(@PathVariable String userId){ - Wallet wallet = walletService.getWallet(userId); - - // Convert AtomicLong maps to Long maps for JSON response - Map availableShares = wallet.getAvailableShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - Map reservedShares = wallet.getReservedShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - WalletResponse response = WalletResponse.builder() - .userId(userId) - .availableCash(wallet.getAvailableCash()) - .reservedCash(wallet.getReservedCash()) - .availableShares(availableShares) - .reservedShares(reservedShares) - .build(); - return ResponseEntity.ok(response); - } - @PostMapping("/depositCash") - public ResponseEntity depositCash(@RequestBody DepositRequest request) { - walletService.creditUserCash(request.getUserId(), request.getAmount()); - return ResponseEntity.ok("Deposit Successful"); - } - - @PostMapping("/depositShares") - public ResponseEntity depositShares(@RequestBody DepositRequest request) { - // Credit shares for the specific instrument - walletService.creditUserShares(request.getUserId(), request.getInstrument(), request.getAmount()); - return ResponseEntity.ok("Shares Deposited Successfully"); - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java b/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java deleted file mode 100644 index 875f533..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java +++ /dev/null @@ -1,26 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class DepositRequest { - private String userId; - private long amount; - private String instrument; // Optional: used if depositing shares instead of cash - - public String getUserId() { - return userId; - } - - public long getAmount() { - return amount; - } - - public String getInstrument() { - return instrument; - } -} diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java b/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java deleted file mode 100644 index 0f4d8dc..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/EventRequest.java +++ /dev/null @@ -1,19 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class EventRequest { - private String id; - private String questions; - private String yesTicker; - private String noTicker; - private int expiry; // minutes from now - private Long liquidity; // Optional - defaults to 10000 if not provided -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java b/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java deleted file mode 100644 index 0cc6eb7..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/MarketEvent.java +++ /dev/null @@ -1,42 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; -import org.example.matching.api.dto.enums.EventStatus; - -import java.time.LocalDateTime; -import java.util.concurrent.atomic.AtomicLong; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class MarketEvent { - private String eventID; - private String questions; - private String yesTicker; - private String noTicker; - private LocalDateTime expiry; - private EventStatus status; - private String outcome; - private long liquidity; - - // This is the ONLY thing that drives price. Starts at 0. - private final AtomicLong virtualNetSold = new AtomicLong(0); - - // Getter for the virtual counter - public AtomicLong getVirtualNetSold() { - return virtualNetSold; - } - - // Fix the field name typo - public String getEventID() { - return eventID; - } - - public void setEventID(String eventID) { - this.eventID = eventID; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java b/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java deleted file mode 100644 index ce2e349..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java +++ /dev/null @@ -1,18 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.List; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderBookResponse { - private String instrument; - private List bids; - private List asks; -} diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java b/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java deleted file mode 100644 index 5368db0..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java +++ /dev/null @@ -1,28 +0,0 @@ -package org.example.matching.api.dto; - -import org.example.matching.model.Order; -import org.example.matching.model.OrderSide; - -import java.util.UUID; - -public class OrderMapper { - public static Order toDomain(OrderRequest request) { - String orderId; - if ("HOUSE_BOT".equals(request.getUserId())) { - orderId = "HOUSE_BOT-" + request.getInstrument() + "-" + request.getSide() + "-" + System.currentTimeMillis(); - } else { - orderId = UUID.randomUUID().toString(); - } - - Order order = new Order( - orderId, - request.getUserId(), - request.getPrice(), - (int) request.getQuantity(), - System.currentTimeMillis(), - OrderSide.valueOf(request.getSide().toUpperCase()) - ); - order.setInstrument(request.getInstrument()); - return order; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java b/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java deleted file mode 100644 index eba85b9..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java +++ /dev/null @@ -1,57 +0,0 @@ -package org.example.matching.api.dto; - -import jakarta.validation.constraints.NotBlank; -import jakarta.validation.constraints.Pattern; -import jakarta.validation.constraints.Positive; -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; -import lombok.Getter; - -@AllArgsConstructor -@NoArgsConstructor -@Data -@Getter -public class OrderRequest { - @NotBlank(message = "User ID is required") - private String userId; - - @NotBlank(message = "Instrument is required") - private String instrument; - - @Pattern(regexp = "BUY|SELL", message = "Side must be BUY or SELL") - private String side; - - @Positive(message = "Price must be greater than zero") - private long price; - - @Positive(message = "Quantity must be greater than zero") - private long quantity; - - @NotBlank(message = "Idempotency key is required") - private String idempotencyKey; // Unique string from the frontend - - public String getUserId() { - return userId; - } - - public String getInstrument() { - return instrument; - } - - public String getSide() { - return side; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public String getIdempotencyKey() { - return idempotencyKey; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java b/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java deleted file mode 100644 index f9013fe..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java +++ /dev/null @@ -1,21 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderResponse { - private String orderId; - private String status; // "ACCEPTED", "REJECTED" - private String message; // "Insufficient funds" or "Success" - private long timestamp; - - public String getStatus() { - return status; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java b/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java deleted file mode 100644 index 42a886a..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java +++ /dev/null @@ -1,13 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class PriceLevel { - private Long price; - private Long quantity; -} diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java b/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java deleted file mode 100644 index ef95c21..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java +++ /dev/null @@ -1,20 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.Map; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class WalletResponse { - private String userId; - private long availableCash; - private long reservedCash; - private Map availableShares; - private Map reservedShares; -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/dto/enums/EventStatus.java b/matching-engine/src/main/java/org/example/matching/api/dto/enums/EventStatus.java deleted file mode 100644 index 6680a51..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/dto/enums/EventStatus.java +++ /dev/null @@ -1,7 +0,0 @@ -package org.example.matching.api.dto.enums; - -public enum EventStatus { - OPEN, - SETTLED, - CANCELLED -} diff --git a/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java b/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java deleted file mode 100644 index 0821485..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java +++ /dev/null @@ -1,154 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import lombok.extern.slf4j.Slf4j; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.OrderSide; -import org.springframework.stereotype.Service; - -import java.util.concurrent.atomic.AtomicLong; - -@Slf4j -@Service -@RequiredArgsConstructor -public class LiquidBotService { - - private final OrderService orderService; - private final MarketManagmentService marketManagmentService; - private final MatchingEngine matchingEngine; - - private static final String BOT_ID = "HOUSE_BOT"; - private static final int SPREAD = 4; - - public void updateMarketTrigger(String ticker) { - // 🎯 KEY CHECK: Only provide liquidity for prediction markets (events), not regular stocks - if (!marketManagmentService.isEventTicker(ticker)) { - log.info("Ticker {} is not an event ticker - bot will not provide liquidity", ticker); - return; - } - - MarketEvent event = marketManagmentService.getEventByTicker(ticker); - if (event == null || event.getStatus() != org.example.matching.api.dto.enums.EventStatus.OPEN) { - // Don't provide liquidity for settled events - return; - } - - // 1. Get the displacement (starts at 0) - long netSold = event.getVirtualNetSold().get(); - long L = event.getLiquidity(); - - // 2. SIGMOID MATH (Guaranteed 50¢ if netSold is 0) - double exponent = (double) netSold / L; - long fairPriceYes = (long) (100.0 / (1.0 + Math.exp(-exponent))); - fairPriceYes = Math.max(1, Math.min(99, fairPriceYes)); - long fairPriceNo = 100 - fairPriceYes; - - // 3. SMART BOT LOGIC - Only provide liquidity if there's insufficient natural liquidity - boolean needsLiquidity = shouldProvideLiquidity(ticker, fairPriceYes, fairPriceNo); - - if (needsLiquidity) { - refreshBotOrders(event.getYesTicker(), fairPriceYes, true); - refreshBotOrders(event.getNoTicker(), fairPriceNo, false); - log.info("Bot providing liquidity for {}: YES {}¢, NO {}¢ (virtualNetSold: {})", - ticker, fairPriceYes, fairPriceNo, netSold); - } else { - // Step back - cancel bot orders when there's natural liquidity - matchingEngine.cancelAllOrdersForUser(BOT_ID, event.getYesTicker()); - matchingEngine.cancelAllOrdersForUser(BOT_ID, event.getNoTicker()); - log.info("Bot stepping back for {} - natural liquidity available", ticker); - } - } - - private boolean shouldProvideLiquidity(String ticker, long fairPriceYes, long fairPriceNo) { - // Get both order books for the event - String yesTicker = ticker.contains("_Y") ? ticker : ticker.replace("_N", "_Y"); - String noTicker = ticker.contains("_N") ? ticker : ticker.replace("_Y", "_N"); - - var yesBook = matchingEngine.getOrderBookForMarketData(yesTicker); - var noBook = matchingEngine.getOrderBookForMarketData(noTicker); - - boolean yesHasNaturalOrders = hasNaturalOrders(yesBook); - boolean noHasNaturalOrders = hasNaturalOrders(noBook); - - log.info("Liquidity check for {} - YES has natural: {}, NO has natural: {}", - ticker, yesHasNaturalOrders, noHasNaturalOrders); - - // Only provide liquidity if there's insufficient natural liquidity on either side - // But also consider if there are ANY natural orders at all - boolean hasAnyNaturalOrders = yesHasNaturalOrders || noHasNaturalOrders; - - // Step back if there are natural orders, provide liquidity if market is empty - return !hasAnyNaturalOrders; - } - - private boolean hasNaturalOrders(org.example.matching.model.OrderBook book) { - if (book.getBids().isEmpty() && book.getAsks().isEmpty()) { - return false; // Empty book - need liquidity - } - - // Check if there are orders from users other than bot - boolean naturalBids = book.getBids().values().stream().anyMatch(orders -> - orders.stream().anyMatch(order -> !order.getUserId().equals(BOT_ID))); - boolean naturalAsks = book.getAsks().values().stream().anyMatch(orders -> - orders.stream().anyMatch(order -> !order.getUserId().equals(BOT_ID))); - - log.info("Order book check - Natural bids: {}, Natural asks: {}, Total bid levels: {}, Total ask levels: {}", - naturalBids, naturalAsks, book.getBids().size(), book.getAsks().size()); - - return naturalBids || naturalAsks; - } - - // This is called by your OrderService AFTER a trade happens - public void recordTrade(String ticker, long quantity, String side) { - MarketEvent event = marketManagmentService.getEventByTicker(ticker); - if (event == null) return; - - // If a human BUYS from the bot, displacement goes UP - // If a human SELLS to the bot, displacement goes DOWN - if (side.equalsIgnoreCase("BUY")) { - event.getVirtualNetSold().addAndGet(quantity); - } else { - event.getVirtualNetSold().addAndGet(-quantity); - } - - log.info("Recorded trade: {} {} {} shares (virtualNetSold: {})", - ticker, side, quantity, event.getVirtualNetSold().get()); - - // Immediately trigger price update based on new displacement - updateMarketTrigger(ticker); - } - - private void refreshBotOrders(String ticker, long fairPrice, boolean isYesTicker) { - // Cancel all existing bot orders for this ticker - matchingEngine.cancelAllOrdersForUser(BOT_ID, ticker); - - // Place new orders with 1-cent spread around fair price for better visibility - long bidPrice = Math.max(1, fairPrice - 1); - long askPrice = Math.min(99, fairPrice + 1); - - // Place bid order (buy from users) - placeBotOrder(ticker, OrderSide.BUY, bidPrice, 500); - - // Place ask order (sell to users) - placeBotOrder(ticker, OrderSide.SELL, askPrice, 500); - } - - private void placeBotOrder(String ticker, OrderSide side, long price, long quantity) { - OrderRequest req = new OrderRequest(); - req.setUserId(BOT_ID); - req.setInstrument(ticker); - req.setSide(side.name()); - req.setPrice(price); - req.setQuantity(quantity); - req.setIdempotencyKey(BOT_ID + "-" + ticker + "-" + side + "-" + System.currentTimeMillis()); - - try { - orderService.processOrder(req); - } catch (Exception e) { - log.error("Failed to place bot order: {}", req, e); - } - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java b/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java deleted file mode 100644 index f9ec75e..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java +++ /dev/null @@ -1,67 +0,0 @@ -package org.example.matching.api.service; - -import org.springframework.stereotype.Service; -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.CopyOnWriteArrayList; - -@Service -public class MarketDataService { - //stores last price each stock is traded at - private final Map lastPrices = new ConcurrentHashMap<>(); - - // Average V(volume)WAP = sum(price*quantity)/sum(quantity) - private final Map sumPV = new ConcurrentHashMap<>(); - private final Map sumV = new ConcurrentHashMap<>(); - // To track the "Top of Book" (Best Bid/Ask) - private final Map bestBids = new ConcurrentHashMap<>(); - private final Map bestAsks = new ConcurrentHashMap<>(); - - public void UpdateTrade(String instrument, long price , long quantity){ - lastPrices.put(instrument,(double)price); - sumPV.merge(instrument,(double)(price*quantity),Double::sum); - sumV.merge(instrument,quantity,Long::sum); - } - - public void updateBookTops(String instrument, Double bestBid, Double bestAsk) { - if (bestBid != null) bestBids.put(instrument, bestBid); - if (bestAsk != null) bestAsks.put(instrument, bestAsk); - } - - - public Map getSnapshots(String instrument){ - double ltp = lastPrices.getOrDefault(instrument,0.0); - double vwap = sumV.getOrDefault(instrument,0L)==0?0: sumPV.get(instrument)/ sumV.get(instrument); - double bid = bestBids.getOrDefault(instrument, 0.0); - double ask = bestAsks.getOrDefault(instrument, 0.0); - double mid = (bid > 0 && ask > 0) ? (bid + ask) / 2.0 : ltp; - - return Map.of( - "instrument", instrument, - "lastPrice", ltp, - "vwap", vwap, - "bid", bid, - "ask", ask, - "mid", mid, - "spread", (ask - bid) - ); - } - - // A list of the last 10 prices - private final Map> priceHistory = new ConcurrentHashMap<>(); - - public void updateTrade(String instrument, long price, long quantity) { - lastPrices.put(instrument, (double) price); - - // Track History - priceHistory.computeIfAbsent(instrument, k -> new CopyOnWriteArrayList<>()) - .add(0, (double) price); // Add to the front - - // Keep only the last 10 - List history = priceHistory.get(instrument); - if (history.size() > 10) history.remove(history.size() - 1); - - // ... (rest of VWAP logic) - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java b/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java deleted file mode 100644 index e95945b..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/service/MarketManagmentService.java +++ /dev/null @@ -1,99 +0,0 @@ -package org.example.matching.api.service; - -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.dto.enums.EventStatus; -import org.example.matching.api.service.LiquidBotService; -import org.springframework.context.annotation.Lazy; -import org.springframework.stereotype.Service; - -import java.time.LocalDateTime; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.atomic.AtomicLong; - -@Service -public class MarketManagmentService { - private final WalletService walletService; - private final LiquidBotService liquidBotService; - - // Stores Event by ID - private final Map events = new ConcurrentHashMap<>(); - // Stores Ticker Pairs (YES <-> NO) - private final Map tickerPairs = new ConcurrentHashMap<>(); - // NEW: Maps Tickers to the Event they belong to - private final Map tickerToEvent = new ConcurrentHashMap<>(); - - // Use constructor injection to avoid circular dependency issues - public MarketManagmentService(WalletService walletService, @Lazy LiquidBotService liquidBotService) { - this.walletService = walletService; - this.liquidBotService = liquidBotService; - } - - public void registerEvent(MarketEvent event) { - tickerPairs.put(event.getYesTicker(), event.getNoTicker()); - tickerPairs.put(event.getNoTicker(), event.getYesTicker()); - - // Map both tickers to this event object - tickerToEvent.put(event.getYesTicker(), event); - tickerToEvent.put(event.getNoTicker(), event); - } - - public String getPartnerTicker(String ticker) { - return tickerPairs.get(ticker); - } - - public MarketEvent getEvent(String id) { - return events.get(id); - } - - public MarketEvent getEventByTicker(String ticker) { - return tickerToEvent.get(ticker); - } - - // Check if ticker belongs to an event (prediction market) vs regular stock - public boolean isEventTicker(String ticker) { - return tickerToEvent.containsKey(ticker); - } - - // Check if ticker belongs to an event (prediction market) vs regular stock - public boolean isEventTicker(String ticker) { - return tickerToEvent.containsKey(ticker); - } - - public MarketEvent createEvent(String id, String question, String yesTicker, String noTicker, int minutesFromNow, Long liquidity) { - // Use provided liquidity or default to 10000 - long eventLiquidity = (liquidity != null) ? liquidity : 10000L; - - MarketEvent event = MarketEvent.builder() - .eventID(id) - .questions(question) - .yesTicker(yesTicker) - .noTicker(noTicker) - .expiry(LocalDateTime.now().plusMinutes(minutesFromNow)) - .status(EventStatus.OPEN) - .liquidity(eventLiquidity) // Use configurable liquidity - .build(); - - events.put(id, event); - registerEvent(event); // Populate the lookup maps - - // Admin can make a "mistake" here (e.g. 100,000) - // and it won't break the 50-50 start! - walletService.creditUserShares("HOUSE_BOT", yesTicker, 100000); - walletService.creditUserShares("HOUSE_BOT", noTicker, 100000); - - // Give bot cash to place BUY orders (for market making) - walletService.creditUserCash("HOUSE_BOT", 10000000); // 100,000 dollars = 10,000,000 cents - - // Force the first quote at 50/50 - liquidBotService.updateMarketTrigger(yesTicker); - return event; - } - - public java.util.Collection getAllOpenEvents() { - return events.values().stream() - .filter(event -> event.getStatus() == EventStatus.OPEN) - .collect(java.util.stream.Collectors.toList()); - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java b/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java deleted file mode 100644 index c242208..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java +++ /dev/null @@ -1,120 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.dto.OrderMapper; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.api.dto.enums.EventStatus; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.beans.BeansException; -import org.springframework.context.ApplicationContext; -import org.springframework.context.ApplicationContextAware; -import org.springframework.stereotype.Service; - -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service -@RequiredArgsConstructor -public class OrderService implements ApplicationContextAware { - - private final MarketDataService marketDataService; - private final RiskManager riskManager; - private final MatchingEngine matchingEngine; - private final WalletService walletService; - private final EventJournal eventJournal; - private final OrderRepository orderRepository; - private final MarketManagmentService marketManagmentService; - - private ApplicationContext applicationContext; - private LiquidBotService liquidBotService; - - // In-memory idempotency store: Key -> Previous Response - private final Map idempotencyStore = new ConcurrentHashMap<>(); - - @Override - public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { - this.applicationContext = applicationContext; - } - - private LiquidBotService getLiquidBotService() { - if (liquidBotService == null) { - liquidBotService = applicationContext.getBean(LiquidBotService.class); - } - return liquidBotService; - } - - public OrderResponse processOrder(OrderRequest request) { - if (idempotencyStore.containsKey(request.getIdempotencyKey())) { - return idempotencyStore.get(request.getIdempotencyKey()); - } - - Order order = OrderMapper.toDomain(request); - - // Check if event is settled FIRST (before any other validation) - MarketEvent event = marketManagmentService.getEventByTicker(order.getInstrument()); - if (event != null && EventStatus.SETTLED.equals(event.getStatus())) { - return buildResponse(order, "REJECTED", "Event is settled - no more orders allowed"); - } - - if (!riskManager.checkAndReserve(order)) { - return buildResponse(order, "REJECTED", "Insufficient funds or shares"); - } - - orderRepository.save(order); - eventJournal.appendRaw("ORDER_PLACED: " + order.getId()); - - // Matching Engine execution - List trades = matchingEngine.placeOrder(order); - - for (Trade trade : trades) { - // so once trade is done manage the cash and shares of the users using their ids and stuff in walletService below - walletService.settleTrade(trade); - marketDataService.UpdateTrade(order.getInstrument(),trade.getPrice(),trade.getQuantity()); - eventJournal.appendRaw("TRADE_SETTLED: " + trade.getBuyOrderId() + " <-> " + trade.getSellOrderId()); - - // Debug: Log trade details - System.out.println("DEBUG: Trade occurred - BuyID: " + trade.getBuyOrderId() + - ", SellID: " + trade.getSellOrderId() + - ", UserID: " + order.getUserId() + - ", Side: " + order.getSide()); - - // If trade involves HOUSE_BOT, record it for virtual counter - if (order.getUserId().equals("HOUSE_BOT") || - (trade.getBuyOrderId().startsWith("HOUSE_BOT") || trade.getSellOrderId().startsWith("HOUSE_BOT"))) { - System.out.println("DEBUG: Recording trade for virtual counter"); - getLiquidBotService().recordTrade(order.getInstrument(), trade.getQuantity(), order.getSide().name()); - } else { - System.out.println("DEBUG: Trade does not involve HOUSE_BOT - skipping virtual counter"); - } - } - var book = matchingEngine.getOrderBookForMarketData(order.getInstrument()); - marketDataService.updateBookTops( - order.getInstrument(), - book.getBestBid(), - book.getBestAsk() - ); - - OrderResponse response = buildResponse(order, "ACCEPTED", "Success"); - idempotencyStore.put(request.getIdempotencyKey(), response); - return response; - } - - private OrderResponse buildResponse(Order order, String status, String msg) { - return OrderResponse.builder() - .orderId(order.getId()) - .status(status) - .message(msg) - .timestamp(System.currentTimeMillis()) - .build(); - } -} - diff --git a/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java b/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java deleted file mode 100644 index cda3ba5..0000000 --- a/matching-engine/src/main/java/org/example/matching/api/service/SettlementService.java +++ /dev/null @@ -1,69 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.MarketEvent; -import org.example.matching.api.dto.enums.EventStatus; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Wallet; -import org.springframework.stereotype.Service; - -import java.util.Collection; -import java.util.List; - -@Service -@RequiredArgsConstructor -public class SettlementService { - private final WalletService walletService; - private final MarketManagmentService marketService; - private final RiskManager riskManager; - private final MatchingEngine matchingEngine; - - - public void settleEvent(String eventId, String winningOutcome){ - MarketEvent event = marketService.getEvent(eventId); - if(event==null|| event.getStatus()== EventStatus.SETTLED) return;; - - // winningTicker will get assigned the outcome , if it is yes , the winningTicker is yes and no so winningTicker is No - String winningTicker = winningOutcome.equalsIgnoreCase("YES")? event.getYesTicker():event.getNoTicker(); - - //losingTicker will get assigned the outcome , if it is yes , the losingTicker is yes and no so losingTicker is NOx - String losingTicker = winningOutcome.equalsIgnoreCase("YES")?event.getNoTicker():event.getYesTicker(); - - Collection allWallets = walletService.getAllWallets(); - - for (Wallet wallet : allWallets) { - // 2. Pay out the Winners ($1.00 per share) - - //checking how many shares of yes one has - long winningShares = wallet.getAvailableShares().containsKey(winningTicker) - ? wallet.getAvailableShares().get(winningTicker).get() - : 0L; if (winningShares > 0) { - long payout = winningShares * 100; // 100 cents = $1.00 - wallet.addAvailableCash(payout); - wallet.getAvailableShares().remove(winningTicker); - } - - // 3. Remove the Losing Shares (Worth $0) - wallet.getAvailableShares().remove(losingTicker); - } - - event.setStatus(EventStatus.SETTLED); - event.setOutcome(winningOutcome); - - // Clear order books for both tickers after settlement - refundTicker(event.getYesTicker()); - refundTicker(event.getNoTicker()); - } - - - //check if walletService or RiskManager - private void refundTicker(String ticker){ - List orders = matchingEngine.clearBook(ticker); - for (Order o:orders){ - walletService.releaseReservation(o.getId()); - } - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java b/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java deleted file mode 100644 index 3482542..0000000 --- a/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java +++ /dev/null @@ -1,13 +0,0 @@ -package org.example.matching.app; - -import org.springframework.boot.SpringApplication; -import org.springframework.boot.autoconfigure.SpringBootApplication; -import org.springframework.context.annotation.ComponentScan; - -@SpringBootApplication -@ComponentScan(basePackages = "org.example.matching") -public class MatchingEngineApplication { - public static void main(String[] args) { - SpringApplication.run(MatchingEngineApplication.class, args); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java b/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java deleted file mode 100644 index cb616ec..0000000 --- a/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java +++ /dev/null @@ -1,37 +0,0 @@ -package org.example.matching.config; - -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.orderbook.InMemoryOrderRepository; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.context.annotation.Bean; -import org.springframework.context.annotation.Configuration; - -@Configuration -public class MatchingEngineConfig { - - @Bean - public EventJournal eventJournal() { - return new EventJournal(); - } - - @Bean - public OrderRepository orderRepository() { - return new InMemoryOrderRepository(); - } - - @Bean - public RiskManager riskManager(WalletService walletService, OrderRepository orderRepository) { - return new RiskManager(walletService, orderRepository); - } - - @Bean - public MatchingEngine matchingEngine(OrderRepository orderRepository, - WalletService walletService, - EventJournal eventJournal) { - return new MatchingEngine(orderRepository, walletService, eventJournal); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java b/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java deleted file mode 100644 index 48d66f5..0000000 --- a/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java +++ /dev/null @@ -1,100 +0,0 @@ -//import lombok.AllArgsConstructor; -// -//import java.io.FileWriter; -//import java.io.IOException; -//import java.nio.file.FileAlreadyExistsException; -//import java.nio.file.Files; -//import java.nio.file.Path; -// -//@AllArgsConstructor -//public class EventJournal { -// private final Path journalDir; -// private final Path journalFile; -// -// public EventJournal() { -// try { -// journalDir = Path.of("journals"); -// Files.createDirectories(journalDir); -// -// journalFile = Path.of("engine.log"); -// try { -// Files.createFile(journalFile); -// } catch (FileAlreadyExistsException e) { -// // File already exists, that's fine -// } -// } catch (IOException e) { -//throw new RuntimeException("failed to journal"); -// } -// -// } -// public synchronized void append(String event){ -// try(FileWriter writer = new FileWriter(journalFile.toFile(),true)){ -// writer.write(event); -// writer.write(System.lineSeparator()); -// writer.flush(); -// } catch (IOException e) { -// throw new RuntimeException("Failed to write to journal", e); -// } -// } -// } -// - -package org.example.matching.journal; - -import java.io.FileWriter; -import java.io.IOException; -import java.nio.file.*; -import java.util.List; - -public class EventJournal { - - private final Path journalDir; - private final Path journalFile; - - public EventJournal() { - try { - journalDir = Path.of("journals"); - Files.createDirectories(journalDir); - journalFile = journalDir.resolve("engine.log"); - if (!Files.exists(journalFile)) { - Files.createFile(journalFile); - } - } catch (IOException e) { - throw new RuntimeException("Failed to initialize EventJournal", e); - } - } - - public synchronized void appendRaw(String eventBody) { - try (FileWriter writer = new FileWriter(journalFile.toFile(), true)) { - writer.write(eventBody); - writer.write(System.lineSeparator()); - writer.flush(); - // for production consider FileDescriptor.sync to fsync() - } catch (IOException e) { - throw new RuntimeException("Failed to write to journal", e); - } - } - - // helpers with consistent format - public void appendOrder(String id, String user, String side, long price, int qty, long ts) { - String line = String.format("ORDER %s %s %s %d %d %d", id, user, side, price, qty, ts); - appendRaw(line); - } - - public void appendTrade(String buyId, String sellId, long price, int qty, long ts) { - String line = String.format("TRADE %s %s %d %d %d", buyId, sellId, price, qty, ts); - appendRaw(line); - } - - public List readAllLines() { - try { - return Files.readAllLines(journalFile); - } catch (IOException e) { - throw new RuntimeException("Failed to read journal", e); - } - } - - public Path getJournalFile() { - return journalFile; - } -} diff --git a/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java b/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java deleted file mode 100644 index f5a2ce3..0000000 --- a/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java +++ /dev/null @@ -1,118 +0,0 @@ -package org.example.matching.matching; - -import lombok.RequiredArgsConstructor; -import lombok.extern.slf4j.Slf4j; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.dto.PriceLevel; -import org.example.matching.journal.EventJournal; -import org.example.matching.model.Order; -import org.example.matching.model.OrderBook; -import org.example.matching.model.OrderSide; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -import jakarta.annotation.PostConstruct; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -/** - * Matching engine is responsible for matching orders and maintaining order books. - */ -@Slf4j -@Service -@RequiredArgsConstructor -public class MatchingEngine { - - private final OrderRepository orderRepository; - private final WalletService walletService; - private final EventJournal journal; - - private final Map orderBooks = new HashMap<>(); - - @PostConstruct - public void init() { - // Pre-create books for stocks you want to test - orderBooks.put("AAPL", new OrderBook()); - orderBooks.put("TSLA", new OrderBook()); - orderBooks.put("BTC", new OrderBook()); - } - - public OrderBookResponse getSnapshot(String instrument) { - OrderBook book = getOrderBook(instrument); - return OrderBookResponse.builder() - .instrument(instrument) - .bids(getPriceLevels(book.getBids())) - .asks(getPriceLevels(book.getAsks())) - .build(); - } - - public OrderBook getOrderBookForMarketData(String instrument) { - return orderBooks.getOrDefault(instrument, new OrderBook()); - } - - public List placeOrder(Order order) { - return placeOrder(order, true); - } - - public List placeOrder(Order order, boolean record) { - if (record) { - journal.appendOrder(order.getId(), order.getUserId(), order.getSide().name(), order.getPrice(), order.getQuantity(), order.getTimestamp()); - } - - OrderBook book = getOrderBook(order.getInstrument()); - List trades; - - if (order.getSide() == OrderSide.BUY) { - trades = book.matchBuy(order); - } else { - trades = book.matchSell(order); - } - - // Record trades - for (Trade trade : trades) { - if (record) { - journal.appendTrade(trade.getBuyOrderId(), trade.getSellOrderId(), trade.getPrice(), (int) trade.getQuantity(), trade.getTimestamp()); - } - } - - return trades; - } - - public List cancelAllOrdersForUser(String userId, String instrument) { - List cancelledOrders = new ArrayList<>(); - OrderBook book = orderBooks.get(instrument); - if (book != null) { - cancelledOrders = book.cancelAllOrdersForUser(userId); - } - return cancelledOrders; - } - - public List clearBook(String ticker) { - List cancelledOrders = new ArrayList<>(); - OrderBook book = orderBooks.get(ticker); - if (book != null) { - cancelledOrders = book.cancelAllOrdersForUser("*"); // Cancel all orders - } - return cancelledOrders; - } - - private OrderBook getOrderBook(String instrument) { - return orderBooks.computeIfAbsent(instrument, k -> new OrderBook()); - } - - private List getPriceLevels(Map> side) { - return side.entrySet().stream() - .map(entry -> { - long price = entry.getKey(); - long totalQty = entry.getValue().stream() - .mapToLong(Order::getQuantity) - .sum(); - return new PriceLevel(price, totalQty); - }) - .toList(); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/model/Order.java b/matching-engine/src/main/java/org/example/matching/model/Order.java deleted file mode 100644 index 1862ae1..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/Order.java +++ /dev/null @@ -1,98 +0,0 @@ -package org.example.matching.model; - -import lombok.RequiredArgsConstructor; - -import java.time.LocalDateTime; - -@RequiredArgsConstructor -public class Order { - String id; - String userId; - long price; - int quantity; - long timestamp; - OrderSide side; - String instrument; // Added for multi-book support - - public Order(String userId, long price, int quantity, long timestamp, OrderSide side) { - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side, String instrument) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = instrument != null ? instrument : "DEFAULT"; - } - - public String getId() { - return id; - } - - public String getUserId() { - return userId; - } - - public long getPrice() { - return price; - } - - public int getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } - - public OrderSide getSide() { - return side; - } - public void reduceQuantity(long delta) { - if (delta < 0) throw new IllegalArgumentException("delta must be >= 0"); - if (delta > quantity) throw new IllegalArgumentException("reduce more than remaining"); - this.quantity -= (int) delta; - } - - public boolean isFilled() { - return quantity <= 0; - } - - @Override - public String toString() { - return "Order{" + - "id='" + id + '\'' + - ", userId='" + userId + '\'' + - ", price=" + price + - ", quantity=" + quantity + - ", timestamp=" + timestamp + - ", side=" + side + - '}'; - } - - public String getInstrument() { - return instrument; - } - - public void setInstrument(String instrument) { - this.instrument = instrument; - } -} diff --git a/matching-engine/src/main/java/org/example/matching/model/OrderBook.java b/matching-engine/src/main/java/org/example/matching/model/OrderBook.java deleted file mode 100644 index a354f6e..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/OrderBook.java +++ /dev/null @@ -1,175 +0,0 @@ -package org.example.matching.model; - -import lombok.Data; -import lombok.extern.slf4j.Slf4j; - -import java.util.*; - -@Data -@Slf4j -public class OrderBook { - private final String instrument; - private final TreeMap> bids; // Price -> Orders (descending for bids) - private final TreeMap> asks; // Price -> Orders (ascending for asks) - - public OrderBook() { - this.instrument = ""; - this.bids = new TreeMap<>((a, b) -> Long.compare(b, a)); // Descending - this.asks = new TreeMap<>(); // Ascending - } - - public OrderBook(String instrument) { - this.instrument = instrument; - this.bids = new TreeMap<>((a, b) -> Long.compare(b, a)); // Descending - this.asks = new TreeMap<>(); // Ascending - } - - public void addOrder(Order order) { - if (order.getSide() == OrderSide.BUY) { - bids.computeIfAbsent(order.getPrice(), k -> new ArrayList<>()).add(order); - } else { - asks.computeIfAbsent(order.getPrice(), k -> new ArrayList<>()).add(order); - } - } - - public List matchBuy(Order buyOrder) { - List trades = new ArrayList<>(); - - while (buyOrder.getQuantity() > 0 && !asks.isEmpty()) { - Long bestAskPrice = asks.firstKey(); - if (bestAskPrice > buyOrder.getPrice()) { - break; // No match available - } - - List askOrders = asks.get(bestAskPrice); - if (askOrders.isEmpty()) { - asks.remove(bestAskPrice); - continue; - } - - Order askOrder = askOrders.get(0); - int tradeQuantity = Math.min(buyOrder.getQuantity(), askOrder.getQuantity()); - - // Create trade - Trade trade = new Trade(buyOrder.getId(), askOrder.getId(), bestAskPrice, tradeQuantity, buyOrder.getInstrument()); - trades.add(trade); - - // Update quantities - buyOrder.reduceQuantity(tradeQuantity); - askOrder.reduceQuantity(tradeQuantity); - - // Remove filled orders - if (askOrder.isFilled()) { - askOrders.remove(0); - if (askOrders.isEmpty()) { - asks.remove(bestAskPrice); - } - } - } - - // Add remaining buy order if not filled - if (buyOrder.getQuantity() > 0) { - addOrder(buyOrder); - } - - return trades; - } - - public List matchSell(Order sellOrder) { - List trades = new ArrayList<>(); - - while (sellOrder.getQuantity() > 0 && !bids.isEmpty()) { - Long bestBidPrice = bids.firstKey(); - if (bestBidPrice < sellOrder.getPrice()) { - break; // No match available - } - - List bidOrders = bids.get(bestBidPrice); - if (bidOrders.isEmpty()) { - bids.remove(bestBidPrice); - continue; - } - - Order bidOrder = bidOrders.get(0); - int tradeQuantity = Math.min(sellOrder.getQuantity(), bidOrder.getQuantity()); - - // Create trade - Trade trade = new Trade(bidOrder.getId(), sellOrder.getId(), bestBidPrice, tradeQuantity, sellOrder.getInstrument()); - trades.add(trade); - - // Update quantities - sellOrder.reduceQuantity(tradeQuantity); - bidOrder.reduceQuantity(tradeQuantity); - - // Remove filled orders - if (bidOrder.isFilled()) { - bidOrders.remove(0); - if (bidOrders.isEmpty()) { - bids.remove(bestBidPrice); - } - } - } - - // Add remaining sell order if not filled - if (sellOrder.getQuantity() > 0) { - addOrder(sellOrder); - } - - return trades; - } - - public List cancelAllOrdersForUser(String userId) { - List cancelledOrders = new ArrayList<>(); - - // Cancel bids - bids.values().forEach(orderList -> { - orderList.removeIf(order -> { - if (order.getUserId().equals(userId) || userId.equals("*")) { - cancelledOrders.add(order); - return true; - } - return false; - }); - }); - - // Remove empty price levels - bids.entrySet().removeIf(entry -> entry.getValue().isEmpty()); - - // Cancel asks - asks.values().forEach(orderList -> { - orderList.removeIf(order -> { - if (order.getUserId().equals(userId) || userId.equals("*")) { - cancelledOrders.add(order); - return true; - } - return false; - }); - }); - - // Remove empty price levels - asks.entrySet().removeIf(entry -> entry.getValue().isEmpty()); - - return cancelledOrders; - } - - public Double getBestBid() { - return bids.isEmpty() ? 0.0 : bids.firstKey().doubleValue(); - } - - public Double getBestAsk() { - return asks.isEmpty() ? 0.0 : asks.firstKey().doubleValue(); - } - - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - sb.append("BIDS:\n"); - for (Map.Entry> entry : bids.entrySet()) { - sb.append(" ").append(entry.getKey()).append(": ").append(entry.getValue().size()).append(" orders\n"); - } - sb.append("ASKS:\n"); - for (Map.Entry> entry : asks.entrySet()) { - sb.append(" ").append(entry.getKey()).append(": ").append(entry.getValue().size()).append(" orders\n"); - } - return sb.toString(); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/model/OrderSide.java b/matching-engine/src/main/java/org/example/matching/model/OrderSide.java deleted file mode 100644 index 2c98b1c..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/OrderSide.java +++ /dev/null @@ -1,8 +0,0 @@ -package org.example.matching.model; - -public enum OrderSide { -BUY, - SELL - - -} diff --git a/matching-engine/src/main/java/org/example/matching/model/Reservation.java b/matching-engine/src/main/java/org/example/matching/model/Reservation.java deleted file mode 100644 index f27f346..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/Reservation.java +++ /dev/null @@ -1,101 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.Setter; - -@Getter @Setter @AllArgsConstructor -public class Reservation { - private final String OrderId; - private final String userId; - private final long priceatReserve; - private int remainingQty; - private String instrument; // Add instrument field - - private long reservedCash; - private long reservedShares; - private final Boolean isBuy; - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = "MARKET"; // Default instrument - } - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy, String instrument) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = instrument != null ? instrument : "MARKET"; - } - - public long reduceBy(int qty) { - if (qty <= 0 || remainingQty <= 0) { - return 0; - } - - // Don't consume more than what is left in this specific reservation - int consumed = Math.min(qty, remainingQty); - long cashUsed =0; - if (isBuy) { - // Calculate how much cash was 'used' for this portion of the trade - cashUsed = (long) consumed * priceatReserve; - - // Subtract the used cash from the total reserved cash - this.reservedCash -= cashUsed; - - if (this.reservedCash < 0) this.reservedCash = 0; - } else { - // For a sell order, we just reduce the count of shares held - this.reservedShares -= consumed; - - if (this.reservedShares < 0) this.reservedShares = 0; - } - - // Finally, reduce the quantity so we know how much of the order is left to fill - this.remainingQty -= consumed; - return cashUsed; - } - - // Additional getters needed by the codebase - public String getOrderId() { - return OrderId; - } - - public String getUserId() { - return userId; - } - - public Boolean getIsBuy() { - return isBuy; - } - - public long getReservedCash() { - return reservedCash; - } - - public long getReservedShares() { - return reservedShares; - } - - public int getRemainingQty() { - return remainingQty; - } - - public void setReservedCash(long reservedCash) { - this.reservedCash = reservedCash; - } - - public void setReservedShares(long reservedShares) { - this.reservedShares = reservedShares; - } - - public String getInstrument() { - return instrument; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/model/Trade.java b/matching-engine/src/main/java/org/example/matching/model/Trade.java deleted file mode 100644 index c5a7f00..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/Trade.java +++ /dev/null @@ -1,50 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.NoArgsConstructor; -import lombok.Setter; -import lombok.ToString; - -@Getter -@Setter -@AllArgsConstructor -@NoArgsConstructor -@ToString -public class Trade { - private String buyOrderId; - private String sellOrderId; - private long price; - private long quantity; - private long timestamp; - private String instrument; - - public Trade(String buyOrderId, String sellOrderId, long price, long quantity, String instrument) { - this.buyOrderId = buyOrderId; - this.sellOrderId = sellOrderId; - this.price = price; - this.quantity = quantity; - this.timestamp = System.currentTimeMillis(); - this.instrument = instrument; - } - - public String getBuyOrderId() { - return buyOrderId; - } - - public String getSellOrderId() { - return sellOrderId; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/model/Wallet.java b/matching-engine/src/main/java/org/example/matching/model/Wallet.java deleted file mode 100644 index 48c7dba..0000000 --- a/matching-engine/src/main/java/org/example/matching/model/Wallet.java +++ /dev/null @@ -1,134 +0,0 @@ -package org.example.matching.model; - -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.atomic.AtomicLong; - -public class Wallet { - private final String UserID; - private final AtomicLong availablecash = new AtomicLong(0); - private final AtomicLong reservedcash = new AtomicLong(0); - - // Fixed: Standardized on AtomicLong for all maps - private final ConcurrentHashMap availableShares = new ConcurrentHashMap<>(); - private final ConcurrentHashMap reservedShares = new ConcurrentHashMap<>(); - - public Wallet(String userID) { - this.UserID = userID; - } - - public String getUserId() { - return UserID; - } - - public long getAvailableCash() { - return availablecash.get(); - } - - public long getReservedCash() { - return reservedcash.get(); - } - - public void addAvailableCash(long amount) { - availablecash.addAndGet(amount); - } - - public boolean tryReserveCash(long amount) { - while (true) { - long avail = availablecash.get(); - //if avail less than the amount needed - if (avail < amount) return false; - if (availablecash.compareAndSet(avail, avail - amount)) { - reservedcash.addAndGet(amount); - return true; - //else avail = avail - amount and reserve cash .add amount - } - } - } - - public void releaseReserveCash(long amount) { - //in release reserve cash we just subtract the amount from the reservedcash and add it back to the available cash. - reservedcash.addAndGet(-amount); - availablecash.addAndGet(amount); - } - -//remove the money from the reserves - public void debitReservedCash(long amount) { - reservedcash.addAndGet(-amount); - - } - - // Fixed: Returns along to match AtomicLong, and handles the Map lookup safely - public long getAvailableShares(String instrument) { - AtomicLong val = availableShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - public long getReservedShares(String instrument) { - AtomicLong val = reservedShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - // Methods to get all shares for API responses - public ConcurrentHashMap getAvailableShares() { - return availableShares; - } - - public ConcurrentHashMap getReservedShares() { - return reservedShares; - } - - // get the quantity of the shares the available - //get the qty of reserved of shares - //pass the shares and the qty to reserve it - public boolean tryReserveShares(String instrument, long qty) { - // Fixed: Use AtomicLong and handle initialization correctly - // atomiclong does not hold it instead it points to a memory address - AtomicLong avail = availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); - AtomicLong reserved = reservedShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); -// - // currently is the - while (true) { - long currentAvail = avail.get(); - if (currentAvail < qty) return false; -//if avail >qty - // avail and subtract from avail - if (avail.compareAndSet(currentAvail, currentAvail - qty)) { - reserved.addAndGet(qty); - return true; - } - } - } - // see if the instrument exists - //if not create it - // -//atomiclong avail = availableshares.computeifabsent(instrument , - //atomiclong resrved = resrvedshares.computeIfabsent(instrument,k-> new AtomicLong(0); - public void releaseReservedShares(String instrument, long qty) { - // Fixed: Use AtomicLong here to match the class fields - AtomicLong reserved = reservedShares.get(instrument); - AtomicLong avail = availableShares.get(instrument); - - if (reserved != null) { - reserved.addAndGet(-qty); - } - - if (avail != null) { - avail.addAndGet(qty); - } - } - - public void debitReservedShares(String instrument, long qty) { - // Fixed: Changed from AtomicInteger to AtomicLong - AtomicLong reserved = reservedShares.get(instrument); - if (reserved != null) { - reserved.addAndGet(-qty); - } - } - - //add so available shares . add the shares and in if not create and add - public void addAvailableShares(String instrument, long qty) { - // Fixed: Used AtomicLong in the lambda - availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)) - .addAndGet(qty); - } -} \ No newline at end of file diff --git a/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java b/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java deleted file mode 100644 index 88df633..0000000 --- a/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java +++ /dev/null @@ -1,37 +0,0 @@ -package org.example.matching.orderbook; - -import org.example.matching.model.Order; - -import java.util.Map; -import java.util.Optional; -import java.util.concurrent.ConcurrentHashMap; -import lombok.RequiredArgsConstructor; - -public class InMemoryOrderRepository implements OrderRepository { - - private final Map orders = new ConcurrentHashMap<>(); - - public InMemoryOrderRepository() { - // Constructor - } - - @Override - public void save(Order order) { - orders.put(order.getId(), order); - } - - @Override - public Optional findById(String id) { - return Optional.ofNullable(orders.get(id)); - } - - @Override - public void deleteById(String id) { - orders.remove(id); - } - - @Override - public void delete(Order order) { - orders.remove(order.getId()); - } -} diff --git a/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java b/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java deleted file mode 100644 index 30d6015..0000000 --- a/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java +++ /dev/null @@ -1,16 +0,0 @@ -package org.example.matching.orderbook; - - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.springframework.stereotype.Repository; - -import java.util.Optional; - -@Repository -public interface OrderRepository { - void save(Order order); - Optional findById(String orderId); - void deleteById(String id); - void delete(Order order); -} diff --git a/matching-engine/src/main/resources/application.properties b/matching-engine/src/main/resources/application.properties deleted file mode 100644 index b2860ce..0000000 --- a/matching-engine/src/main/resources/application.properties +++ /dev/null @@ -1,12 +0,0 @@ -# Server Configuration -server.port=8080 - -# Application Configuration -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example.matching=DEBUG -logging.level.org.springframework.web=INFO - -# Jackson Configuration (for JSON serialization) -spring.jackson.serialization.indent-output=true diff --git a/matching-engine/target/classes/application.properties b/matching-engine/target/classes/application.properties deleted file mode 100644 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TopicCard components, and update Home page layout with new market and info sections. --- backend/.gitignore | 1 - backend/README.md | 249 --------------- backend/common/pom.xml | 18 -- .../src/main/java/org/example/Main.java | 7 - .../target/classes/org/example/Main.class | Bin 540 -> 0 bytes .../compile/default-compile/createdFiles.lst | 1 - .../compile/default-compile/inputFiles.lst | 1 - backend/journals/engine.log | 87 ----- backend/matching-engine/README.md | 1 - backend/matching-engine/journals/engine.log | 53 --- backend/matching-engine/pom.xml | 50 --- .../src/main/java/org/example/Main.java | 109 ------- .../matching/MatchingEngineApplication.java | 11 - .../java/org/example/matching/Replay.java | 98 ------ .../Wallets/InMemoryWalletService.java | 138 -------- .../example/matching/Wallets/RiskManager.java | 34 -- .../matching/Wallets/WalletService.java | 17 - .../api/advice/ApiExceptionHandler.java | 29 -- .../api/controller/MarketController.java | 36 --- .../api/controller/OrderController.java | 39 --- .../api/controller/WalletController.java | 59 ---- .../matching/api/dto/DepositRequest.java | 26 -- .../matching/api/dto/OrderBookResponse.java | 18 -- .../example/matching/api/dto/OrderMapper.java | 21 -- .../matching/api/dto/OrderRequest.java | 57 ---- .../matching/api/dto/OrderResponse.java | 21 -- .../example/matching/api/dto/PriceLevel.java | 13 - .../matching/api/dto/WalletResponse.java | 20 -- .../api/service/LiquidBotService.java | 29 -- .../api/service/MarketDataService.java | 67 ---- .../matching/api/service/OrderService.java | 78 ----- .../app/MatchingEngineApplication.java | 4 - .../matching/config/MatchingEngineConfig.java | 40 --- .../matching/journal/EventJournal.java | 100 ------ .../matching/matching/MatchingEngine.java | 184 ----------- .../org/example/matching/model/Order.java | 93 ------ .../org/example/matching/model/OrderBook.java | 259 --------------- .../org/example/matching/model/OrderSide.java | 8 - .../example/matching/model/Reservation.java | 97 ------ .../org/example/matching/model/Trade.java | 40 --- .../org/example/matching/model/Wallet.java | 134 -------- .../orderbook/InMemoryOrderRepository.java | 24 -- .../matching/orderbook/OrderOrchestrator.java | 114 ------- .../matching/orderbook/OrderRepository.java | 14 - .../example/matching/util/IdGenerator.java | 10 - .../matching/validation/OrderValidator.java | 34 -- .../src/main/resources/application.properties | 12 - .../target/classes/application.properties | 12 - .../target/classes/org/example/Main.class | Bin 5934 -> 0 bytes .../matching/MatchingEngineApplication.class | Bin 771 -> 0 bytes .../classes/org/example/matching/Replay.class | Bin 3251 -> 0 bytes .../Wallets/InMemoryWalletService.class | Bin 6159 -> 0 bytes .../matching/Wallets/RiskManager.class | Bin 1091 -> 0 bytes .../matching/Wallets/WalletService.class | Bin 699 -> 0 bytes .../api/advice/ApiExceptionHandler.class | Bin 3503 -> 0 bytes .../api/controller/MarketController.class | Bin 2248 -> 0 bytes .../api/controller/OrderController.class | Bin 3858 -> 0 bytes .../api/controller/WalletController.class | Bin 5380 -> 0 bytes .../matching/api/dto/DepositRequest.class | Bin 2719 -> 0 bytes ...ookResponse$OrderBookResponseBuilder.class | Bin 2330 -> 0 bytes .../matching/api/dto/OrderBookResponse.class | Bin 3760 -> 0 bytes .../matching/api/dto/OrderMapper.class | Bin 1364 -> 0 bytes .../matching/api/dto/OrderRequest.class | Bin 4622 -> 0 bytes .../OrderResponse$OrderResponseBuilder.class | Bin 1996 -> 0 bytes .../matching/api/dto/OrderResponse.class | Bin 3436 -> 0 bytes .../example/matching/api/dto/PriceLevel.class | Bin 2373 -> 0 bytes ...WalletResponse$WalletResponseBuilder.class | Bin 2661 -> 0 bytes .../matching/api/dto/WalletResponse.class | Bin 4498 -> 0 bytes .../matching/api/service/OrderService.class | Bin 5896 -> 0 bytes .../app/MatchingEngineApplication.class | Bin 350 -> 0 bytes .../config/MatchingEngineConfig.class | Bin 2066 -> 0 bytes .../matching/journal/EventJournal.class | Bin 3303 -> 0 bytes .../matching/matching/MatchingEngine.class | Bin 8341 -> 0 bytes .../org/example/matching/model/Order.class | Bin 3369 -> 0 bytes .../example/matching/model/OrderBook.class | Bin 8420 -> 0 bytes .../example/matching/model/OrderSide.class | Bin 1163 -> 0 bytes .../example/matching/model/Reservation.class | Bin 3100 -> 0 bytes .../org/example/matching/model/Trade.class | Bin 2300 -> 0 bytes .../org/example/matching/model/Wallet.class | Bin 4473 -> 0 bytes .../orderbook/InMemoryOrderRepository.class | Bin 1488 -> 0 bytes .../orderbook/OrderOrchestrator.class | Bin 4555 -> 0 bytes .../matching/orderbook/OrderRepository.class | Bin 417 -> 0 bytes .../example/matching/util/IdGenerator.class | Bin 471 -> 0 bytes .../matching/validation/OrderValidator.class | Bin 947 -> 0 bytes .../compile/default-compile/createdFiles.lst | 37 --- .../compile/default-compile/inputFiles.lst | 34 -- .../default-testCompile/inputFiles.lst | 0 backend/src/main/java/org/example/Main.java | 7 - backend/src/pom.xml | 30 -- .../src/components/Category/CategoryBar.tsx | 2 +- frontend/src/components/InfoCard/InfoCard.tsx | 29 ++ .../src/components/MarketCard/MarketCard.tsx | 171 ++++++++++ .../src/components/TopicCard/TopicCard.tsx | 80 +++++ frontend/src/pages/Home.tsx | 301 +++++++++++++++++- 94 files changed, 576 insertions(+), 2682 deletions(-) delete mode 100644 backend/.gitignore delete mode 100644 backend/README.md delete mode 100644 backend/common/pom.xml delete mode 100644 backend/common/src/main/java/org/example/Main.java delete mode 100644 backend/common/target/classes/org/example/Main.class delete mode 100644 backend/common/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst delete mode 100644 backend/common/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst delete mode 100644 backend/journals/engine.log delete mode 100644 backend/matching-engine/README.md delete mode 100644 backend/matching-engine/journals/engine.log delete mode 100644 backend/matching-engine/pom.xml delete mode 100644 backend/matching-engine/src/main/java/org/example/Main.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/Replay.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java delete mode 100644 backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java delete mode 100644 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a/backend/.gitignore +++ /dev/null @@ -1 +0,0 @@ -.idea \ No newline at end of file diff --git a/backend/README.md b/backend/README.md deleted file mode 100644 index 749a73a..0000000 --- a/backend/README.md +++ /dev/null @@ -1,249 +0,0 @@ -# Max Backend - Stock Exchange Matching Engine - -The backend service for Max stock exchange platform, built with Spring Boot. This service handles order matching, trade execution, and provides RESTful APIs for the frontend. - -## 🏗️ Architecture - -``` -backend/ -├── matching-engine/ # Main matching engine service -│ ├── src/ -│ │ ├── main/ -│ │ │ ├── java/org/example/ -│ │ │ └── resources/ -│ │ │ └── application.properties -│ │ └── test/ -│ ├── journals/ # Engine logs -│ └── pom.xml -├── common/ # Shared utilities and models -│ ├── src/main/java/org/example/ -│ └── pom.xml -└── src/ # Additional source files -``` - -## 🛠️ Technology Stack - -- **Framework**: Spring Boot 3.2.2 -- **Language**: Java 17+ -- **Build Tool**: Maven -- **Parent**: Spring Boot Starter Parent 3.2.2 - -### Key Dependencies - -- **Spring Boot Starter Web**: RESTful API development -- **Spring Boot Starter Validation**: Input validation -- **Lombok**: Reduce boilerplate code -- **JUnit Jupiter 5.10.0**: Unit testing - -## 📋 Prerequisites - -- Java Development Kit (JDK) 17 or higher -- Maven 3.6 or higher -- IDE (IntelliJ IDEA, Eclipse, or VS Code recommended) - -## 🚀 Getting Started - -### 1. Install Dependencies - -Navigate to the matching-engine directory: -```bash -cd backend/matching-engine -``` - -Install all dependencies: -```bash -mvn clean install -``` - -### 2. Configure Application - -Edit `src/main/resources/application.properties`: -```properties -# Server Configuration -server.port=8080 - -# Application Name -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example=DEBUG -logging.file.name=journals/engine.log -``` - -### 3. Run the Application - -**Using Maven:** -```bash -mvn spring-boot:run -``` - -**Using Java:** -```bash -mvn clean package -java -jar target/matching-engine-1.0-SNAPSHOT.jar -``` - -The application will start on `http://localhost:8080` - -## 🧪 Testing - -### Run All Tests -```bash -mvn test -``` - -### Run Specific Test -```bash -mvn test -Dtest=YourTestClassName -``` - -### Generate Test Coverage Report -```bash -mvn clean test jacoco:report -``` - -## 📁 Project Modules - -### Matching Engine -The core service that handles: -- Order matching logic -- Trade execution -- Market data management -- RESTful API endpoints - -### Common Module -Shared utilities and models used across services: -- Data models -- Utility classes -- Common configurations -- Shared constants - -## 🔧 Development - -### Build the Project -```bash -mvn clean install -``` - -### Run in Development Mode -```bash -mvn spring-boot:run -Dspring-boot.run.profiles=dev -``` - -### Package for Production -```bash -mvn clean package -DskipTests -``` - -## 📊 API Endpoints - -### Health Check -``` -GET /actuator/health -``` - -### Order Management -``` -POST /api/orders # Create new order -GET /api/orders/{id} # Get order by ID -GET /api/orders # List all orders -DELETE /api/orders/{id} # Cancel order -``` - -### Market Data -``` -GET /api/markets # List all markets -GET /api/markets/{id} # Get market details -``` - -## 🐛 Debugging - -### Enable Debug Logging -Add to `application.properties`: -```properties -logging.level.org.example=DEBUG -logging.level.org.springframework.web=DEBUG -``` - -### View Logs -```bash -tail -f journals/engine.log -``` - -## 🔒 Security Considerations - -- Input validation using Spring Validation -- CORS configuration for frontend integration -- Request/Response logging for audit trails - -## 📈 Performance - -- Optimized order matching algorithm -- Efficient data structures for order books -- Asynchronous processing where applicable - -## 🚀 Deployment - -### Build Docker Image (Future) -```bash -docker build -t max-backend:latest . -docker run -p 8080:8080 max-backend:latest -``` - -### Environment Variables -```bash -SPRING_PROFILES_ACTIVE=prod -SERVER_PORT=8080 -``` - -## 📝 Code Style - -- Follow Java naming conventions -- Use Lombok annotations to reduce boilerplate -- Write unit tests for all business logic -- Document complex algorithms - -## 🔄 CI/CD - -### Maven Lifecycle -1. `mvn clean` - Clean build artifacts -2. `mvn compile` - Compile source code -3. `mvn test` - Run tests -4. `mvn package` - Create JAR file -5. `mvn install` - Install to local repository - -## 🐞 Troubleshooting - -### Port Already in Use -```bash -# Change port in application.properties -server.port=8081 -``` - -### Maven Build Fails -```bash -# Clean and rebuild -mvn clean install -U -``` - -### Lombok Not Working -- Install Lombok plugin in your IDE -- Enable annotation processing - -## 📚 Additional Resources - -- [Spring Boot Documentation](https://spring.io/projects/spring-boot) -- [Maven Documentation](https://maven.apache.org/guides/) -- [Lombok Documentation](https://projectlombok.org/) - -## 🤝 Contributing - -1. Create a feature branch -2. Write tests for new features -3. Ensure all tests pass -4. Follow code style guidelines -5. Submit a pull request - -## 📄 License - -This project is private and proprietary. diff --git a/backend/common/pom.xml b/backend/common/pom.xml deleted file mode 100644 index 4b082cf..0000000 --- a/backend/common/pom.xml +++ /dev/null @@ -1,18 +0,0 @@ - - - - 4.0.0 - - - - org.example - Strongx - 1.0-SNAPSHOT - - - common - - diff --git a/backend/common/src/main/java/org/example/Main.java b/backend/common/src/main/java/org/example/Main.java deleted file mode 100644 index 407f157..0000000 --- a/backend/common/src/main/java/org/example/Main.java +++ /dev/null @@ -1,7 +0,0 @@ -package org.example; - -public class Main { - public static void main(String[] args) { - System.out.println("Hello world!"); - } -} \ No newline at end of file diff --git a/backend/common/target/classes/org/example/Main.class b/backend/common/target/classes/org/example/Main.class deleted file mode 100644 index c37bb3df14c0c383d1a1fd2c3321348b255d63b2..0000000000000000000000000000000000000000 GIT binary patch literal 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1772754586115 -ORDER_PLACED: 9f12d7ee-5ad2-4702-83fb-4fd4faa682fe -ORDER 9f12d7ee-5ad2-4702-83fb-4fd4faa682fe user123 BUY 150 10 1772755348807 -ORDER_PLACED: 4cef0377-341d-4b13-8856-f44b1ad24656 -ORDER 4cef0377-341d-4b13-8856-f44b1ad24656 user-seller SELL 150 10 1772756125478 -ORDER_PLACED: 44655cad-3469-4cfb-899c-c1dacd78ccda -ORDER 44655cad-3469-4cfb-899c-c1dacd78ccda user1 BUY 100 10 1772756456024 -ORDER_PLACED: a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b -ORDER a16f2f1b-2e4b-48f0-8a6f-7ce51f4bc94b user-seller SELL 150 10 1772759912084 -ORDER_PLACED: a1d913c4-317e-4f88-9c2e-05c2d422d7bb -ORDER a1d913c4-317e-4f88-9c2e-05c2d422d7bb user1 BUY 100 10 1772759987885 -ORDER_PLACED: 3db5fb8c-f24b-4674-8a4b-cbadc7fede32 -ORDER 3db5fb8c-f24b-4674-8a4b-cbadc7fede32 user-seller SELL 150 10 1772760831791 -ORDER_PLACED: 562de0cc-8ba3-4264-8158-98904cbce14d -ORDER 562de0cc-8ba3-4264-8158-98904cbce14d user1 BUY 100 10 1772760849537 -ORDER_PLACED: 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 -ORDER 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 user-seller SELL 150 10 1772761342572 -ORDER_PLACED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f -ORDER b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f user1 BUY 151 10 1772761362103 -TRADE b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 150 10 1772761362107 -TRADE_SETTLED: b7a13e53-93ee-46b0-8ddb-8fa9e26ebe5f <-> 9320ee7a-9fef-4449-bf80-f2c2ef83cc88 diff --git a/backend/matching-engine/README.md b/backend/matching-engine/README.md deleted file mode 100644 index 12dbdd6..0000000 --- a/backend/matching-engine/README.md +++ /dev/null @@ -1 +0,0 @@ -Max is Stock Exchange being written in Spring Boot diff --git a/backend/matching-engine/journals/engine.log b/backend/matching-engine/journals/engine.log deleted file mode 100644 index 87647fd..0000000 --- a/backend/matching-engine/journals/engine.log +++ /dev/null @@ -1,53 +0,0 @@ -ORDER c78afcd8-aa27-4770-866b-840efa1dcad2 seller1 SELL 100 10 1772752218574 -ORDER 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 buyer1 BUY 105 4 1772752218582 -TRADE 8a44bcdf-4b7a-4bfb-b94c-792f629cd9f1 c78afcd8-aa27-4770-866b-840efa1dcad2 100 4 1772752218582 -ORDER 2c267f3a-4da6-4060-bb5b-de3fa97f6029 buyer2 BUY 100 6 1772752218583 -TRADE 2c267f3a-4da6-4060-bb5b-de3fa97f6029 c78afcd8-aa27-4770-866b-840efa1dcad2 100 6 1772752218583 -ORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10 -ORDER a692a971-2eae-4de6-b469-2bff7c12c7ec seller1 SELL 100 10 1772752218586 -ORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4 -ORDER 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 buyer1 BUY 105 4 1772752218586 -TRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4 1772752218586 -TRADE 9a4428f5-1e36-4bf6-a7e7-2b0900bb62e8 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 4 -ORDER a8eaddb2-4f1f-4df0-a28b-c365b37c6911 buyer1 BUY 100 6 -ORDER a8eaddb2-4f1f-4df0-a28b-c365b37c6911 buyer1 BUY 100 6 1772752218586 -TRADE a8eaddb2-4f1f-4df0-a28b-c365b37c6911 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 6 1772752218587 -TRADE a8eaddb2-4f1f-4df0-a28b-c365b37c6911 a692a971-2eae-4de6-b469-2bff7c12c7ec 100 6 -ORDER 5362fffb-146f-40b0-a9e1-fb84dd970ac7 seller1 SELL 100 10 1772760358808 -ORDER 0211741a-8fa1-4a25-8b1d-1237a52f9211 buyer1 BUY 105 4 1772760358814 -TRADE 0211741a-8fa1-4a25-8b1d-1237a52f9211 5362fffb-146f-40b0-a9e1-fb84dd970ac7 100 4 1772760358815 -ORDER 898a8498-ad4e-434b-8abe-5f5d20ae3173 buyer2 BUY 100 6 1772760358816 -TRADE 898a8498-ad4e-434b-8abe-5f5d20ae3173 5362fffb-146f-40b0-a9e1-fb84dd970ac7 100 6 1772760358816 -REJECT 6b224bfc-c1e8-46d7-b0a3-ac0de2b49358 INSUFFICIENT_FUNDS -ORDER f9712aa9-acba-43aa-adda-cb5a7adf145d buyer1 BUY 105 4 -ORDER f9712aa9-acba-43aa-adda-cb5a7adf145d buyer1 BUY 105 4 1772760358817 -ORDER c2cd976b-335c-4592-a644-d0d07db87af1 buyer1 BUY 100 6 -ORDER c2cd976b-335c-4592-a644-d0d07db87af1 buyer1 BUY 100 6 1772760358817 -ORDER 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 seller1 SELL 100 10 1772760473119 -ORDER 05f435ca-b3b9-4288-a979-062eef0f5e06 buyer1 BUY 105 4 1772760473125 -TRADE 05f435ca-b3b9-4288-a979-062eef0f5e06 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 4 1772760473125 -ORDER ce8d19be-00e6-4e0b-8056-2f468e5d540a buyer2 BUY 100 6 1772760473126 -TRADE ce8d19be-00e6-4e0b-8056-2f468e5d540a 37c7fb05-1c35-4f6c-9407-3e01713a1ea9 100 6 1772760473126 -REJECT debaf786-7218-4204-9bed-55e5d79c5e16 INSUFFICIENT_FUNDS -ORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4 -ORDER d5f67c56-67c3-4dac-967d-8b54cc41d1b6 buyer1 BUY 105 4 1772760473129 -ORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6 -ORDER a204eca1-a5db-4d75-855f-64ca63a755db buyer1 BUY 100 6 1772760473129 -ORDER_PLACED: e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 -ORDER e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 user-seller SELL 100 10 1772760703367 -ORDER_PLACED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 -ORDER cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 user1 BUY 100 10 1772760707390 -TRADE cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 100 10 1772760707390 -TRADE_SETTLED: cbeb1b27-a8fa-45b2-9bd0-459cc73c3466 <-> e72d00ac-eb7b-42ab-bf3b-f9e568c32ea4 -ORDER_PLACED: e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c -ORDER e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c user-seller SELL 150 10 1772761274302 -ORDER_PLACED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788 -ORDER aa3558d9-7e18-41d7-b6e5-00e3e0c69788 user1 BUY 151 10 1772761274334 -TRADE aa3558d9-7e18-41d7-b6e5-00e3e0c69788 e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c 150 10 1772761274335 -TRADE_SETTLED: aa3558d9-7e18-41d7-b6e5-00e3e0c69788 <-> e5bb5cfc-bb06-4a16-9af5-5e91f72c7a0c -ORDER_PLACED: 89a0af09-0b11-467d-ba14-c015ea52007c -ORDER 89a0af09-0b11-467d-ba14-c015ea52007c user-seller SELL 150 10 1772837899360 -ORDER_PLACED: 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 -ORDER 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 user1 BUY 151 10 1772837899385 -TRADE 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 89a0af09-0b11-467d-ba14-c015ea52007c 150 10 1772837899386 -TRADE_SETTLED: 14e62193-7644-460c-bc0e-e6f9f9eb8ff9 <-> 89a0af09-0b11-467d-ba14-c015ea52007c diff --git a/backend/matching-engine/pom.xml b/backend/matching-engine/pom.xml deleted file mode 100644 index 8e0bcd4..0000000 --- a/backend/matching-engine/pom.xml +++ /dev/null @@ -1,50 +0,0 @@ - - - 4.0.0 - - - org.springframework.boot - spring-boot-starter-parent - 3.2.2 - - - - org.example - matching-engine - 1.0-SNAPSHOT - - - - - org.example - common - 1.0-SNAPSHOT - - - org.springframework.boot - spring-boot-starter-web - - - org.springframework.boot - spring-boot-starter-validation - - - org.projectlombok - lombok - true - - - org.springframework.boot - spring-boot-starter - - - - org.junit.jupiter - junit-jupiter - 5.10.0 - test - - - \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/Main.java b/backend/matching-engine/src/main/java/org/example/Main.java deleted file mode 100644 index be87cb5..0000000 --- a/backend/matching-engine/src/main/java/org/example/Main.java +++ /dev/null @@ -1,109 +0,0 @@ -package org.example; - -import org.example.matching.Replay; -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.OrderBook; -import org.example.matching.model.OrderSide; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.InMemoryOrderRepository; -import org.example.matching.orderbook.OrderOrchestrator; -import org.example.matching.orderbook.OrderRepository; -import org.example.matching.validation.OrderValidator; -import org.example.matching.util.IdGenerator; - -import java.util.List; -import java.util.UUID; - -public class Main { - public static void main(String[] args) { - System.out.println("=== PART A: Engine-only smoke test ==="); - engineSmokeTest(); - - System.out.println("\n\n=== PART B: Full orchestrator E2E test ==="); - orchestratorE2ETest(); - - System.out.println("\n\n=== PART C: Replay test ==="); - replayTest(); - } - - private static void engineSmokeTest(){ - System.out.println("Testing MatchingEngine directly..."); - MatchingEngine engine = new MatchingEngine(); - - Order s1 = new Order(IdGenerator.newId(),"seller1",100L,10,System.currentTimeMillis(),OrderSide.SELL, "AAPL"); - engine.placeOrder(s1); - System.out.println("After SELL (10 @100):"); - System.out.println(engine.dumpBook()); - - Order b1 = new Order(IdGenerator.newId(), "buyer1", 105L, 4, System.currentTimeMillis(), OrderSide.BUY, "AAPL"); - List t1 = engine.placeOrder(b1); - System.out.println("Trade executed: " + t1.size() + " trade(s)"); - System.out.println(engine.dumpBook()); - - Order b2 = new Order(IdGenerator.newId(), "buyer2", 100L, 6, System.currentTimeMillis(), OrderSide.BUY, "AAPL"); - List t2 = engine.placeOrder(b2); - System.out.println("Trade executed: " + t2.size() + " trade(s)"); - System.out.println("Final order book:\n" + engine.dumpBook()); - } - - - private static void orchestratorE2ETest(){ - System.out.println("Testing full orchestrator with wallet integration..."); - OrderRepository orderRepo = new InMemoryOrderRepository(); - InMemoryWalletService walletService = new InMemoryWalletService(orderRepo); - RiskManager riskManager = new RiskManager(walletService, orderRepo); - EventJournal journal = new EventJournal(); - MatchingEngine engine = new MatchingEngine(); - - // Create orchestrator with full constructor - OrderOrchestrator orchestrator = new OrderOrchestrator(engine, journal, riskManager, orderRepo, walletService); - - // Top up wallets - walletService.creditUserShares("seller1", 10); - walletService.creditUserCash("buyer1", 10000); - - System.out.println("Initial state - Buyer cash: " + walletService.getWallet("buyer1").getAvailableCash() + - ", Seller shares: " + walletService.getWallet("seller1").getAvailableShares("MARKET")); - - // create orders - Order sell = new Order(UUID.randomUUID().toString(), "seller1", 100L, 10, System.currentTimeMillis(), OrderSide.SELL, "TSLA"); - Order buy1 = new Order(UUID.randomUUID().toString(), "buyer1", 105L, 4, System.currentTimeMillis(), OrderSide.BUY, "TSLA"); - Order buy2 = new Order(UUID.randomUUID().toString(), "buyer1", 100L, 6, System.currentTimeMillis(), OrderSide.BUY, "TSLA"); - - System.out.println("\nSubmitting orders..."); - orchestrator.submitOrder(sell); - orchestrator.submitOrder(buy1); - orchestrator.submitOrder(buy2); - - // final state - System.out.println("\nFinal order book:"); - System.out.println(engine.dumpBook()); - - System.out.println("\nFinal wallet balances:"); - System.out.println("Buyer - Cash: " + walletService.getWallet("buyer1").getAvailableCash() + - ", Shares: " + walletService.getWallet("buyer1").getAvailableShares("MARKET")); - System.out.println("Seller - Cash: " + walletService.getWallet("seller1").getAvailableCash() + - ", Shares: " + walletService.getWallet("seller1").getAvailableShares("MARKET")); - - // Show only recent journal entries (last 10) - System.out.println("\nRecent journal entries:"); - List lines = journal.readAllLines(); - int start = Math.max(0, lines.size() - 10); - for (int i = start; i < lines.size(); i++) { - System.out.println(lines.get(i)); - } - } - - private static void replayTest(){ - System.out.println("Testing journal replay functionality..."); - MatchingEngine engine2 = new MatchingEngine(); - Replay r = new Replay(engine2); - r.replayJournal(); - System.out.println("Reconstructed order book:"); - System.out.println(engine2.dumpBook()); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java b/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java deleted file mode 100644 index 5f1340d..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java +++ /dev/null @@ -1,11 +0,0 @@ -package org.example.matching; - -import org.springframework.boot.SpringApplication; -import org.springframework.boot.autoconfigure.SpringBootApplication; - -@SpringBootApplication -public class MatchingEngineApplication { - public static void main(String[] args) { - SpringApplication.run(MatchingEngineApplication.class, args); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/Replay.java b/backend/matching-engine/src/main/java/org/example/matching/Replay.java deleted file mode 100644 index 41b53bd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Replay.java +++ /dev/null @@ -1,98 +0,0 @@ -//package org.example.matching; -// -//import org.example.matching.matching.MatchingEngine; -//import org.example.matching.model.Order; -//import org.example.matching.model.OrderBook; -//import org.example.matching.model.OrderSide; -// -//import java.io.BufferedReader; -//import java.io.File; -//import java.io.FileReader; -//import java.io.IOException; -//import java.util.Scanner; -// -//public class Replay { -// // MatchingEngine matchingEngine = new MatchingEngine(); -// -// public void replayJournal(String filePath, OrderBook book) { -// try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) { -// String line; -// while ((line = reader.readLine()) != null) { -// String[] tokens = line.trim().split("\\s+"); -// -// if (tokens.length >= 7 && tokens[0].equals("ORDER")) { -// try { -// String id = tokens[1]; -// String userId = tokens[2]; -// -// // FIXED INDICES BASED ON YOUR LOG: -// long price = Long.parseLong(tokens[3]); // Was [4] -// int quantity = Integer.parseInt(tokens[4]); // Was [5] -// long timestamp = Long.parseLong(tokens[5]); -// OrderSide side = OrderSide.valueOf(tokens[6].toUpperCase()); -// -// Order reOrder = new Order(id, userId, price, quantity, timestamp, side); -// -// // Let's add a print here so you can SEE it working -// System.out.println("Replaying: " + side + " " + quantity + " @ " + price); -// -// book.placeOrder(reOrder); -// -// } catch (Exception e) { -// System.err.println("Error parsing line: " + line + " | " + e.getMessage()); -// } -// } -// } -// } catch (IOException e) { -// System.err.println("File not found: " + e.getMessage()); -// } -// }} - - - - -package org.example.matching; - -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.OrderSide; -import org.example.matching.journal.EventJournal; - -import java.util.List; - -public class Replay { - private final MatchingEngine engine; - private final EventJournal journal; - - public Replay(MatchingEngine engine) { - this.engine = engine; - this.journal = new EventJournal(); - } - - public void replayJournal() { - List lines = journal.readAllLines(); - for (String raw : lines) { - if (raw == null || raw.isBlank()) continue; - String[] first = raw.split("\\s+"); - if (first.length < 2) continue; - - if ("ORDER".equals(first[0]) && first.length >= 7) { - try { - String id = first[1]; - String user = first[2]; - String sideToken = first[3]; - long price = Long.parseLong(first[4]); - int qty = Integer.parseInt(first[5]); - long ts = Long.parseLong(first[6]); - OrderSide side = OrderSide.valueOf(sideToken); - Order o = new Order(id, user, price, qty, ts, side, "DEFAULT"); // Use DEFAULT instrument for replay - System.out.println("Replaying: " + side + " " + qty + " @ " + price); - engine.replayOrder(o); // replay mode (no journaling) - } catch (Exception e) { - System.err.println("Skipping malformed ORDER line: " + raw + " -> " + e.getMessage()); - } - } - // ignore TRADE lines - } - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java deleted file mode 100644 index 88335c0..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java +++ /dev/null @@ -1,138 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.RequiredArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.model.Reservation; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; // Add this import - -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service // Tells Spring this is a managed bean -public class InMemoryWalletService implements WalletService { - - private final Map wallets = new ConcurrentHashMap<>(); - private final Map reservations = new ConcurrentHashMap<>(); - private final OrderRepository orderRepository; - private final String INSTRUMENT = "MARKET"; - - // No-arg constructor for Main.java usage - public InMemoryWalletService() { - this.orderRepository = null; - } - - // Constructor for dependency injection - public InMemoryWalletService(OrderRepository orderRepository) { - this.orderRepository = orderRepository; - } - - private Wallet ensureWallet(String userId) { - return wallets.computeIfAbsent(userId, k -> new Wallet(userId)); - } - - @Override - public boolean reserveForOrder(Order order) { - String userId = order.getUserId(); - String instrument = order.getInstrument(); - Wallet w = ensureWallet(userId); - - if (order.getSide().name().equals("BUY")) { - long required = order.getPrice() * (long) order.getQuantity(); - if (!w.tryReserveCash(required)) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), true, instrument); - r.setReservedCash(required); - reservations.put(order.getId(), r); - } else { - if (!w.tryReserveShares(instrument, order.getQuantity())) return false; - - Reservation r = new Reservation(order.getId(), userId, order.getPrice(), order.getQuantity(), false, instrument); - r.setReservedShares(order.getQuantity()); - reservations.put(order.getId(), r); - } - return true; - } - - -@Override -public void releaseReservation(String orderId){ - Reservation r = reservations.remove(orderId); - if(r==null)return; - Wallet w = ensureWallet(r.getUserId()); - if(r.getIsBuy()){ - w.releaseReserveCash(r.getReservedCash()); - - }else{ - w.releaseReservedShares(r.getInstrument(),r.getReservedShares()); - - } - } - - @Override - public void creditUserShares(String userId, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(INSTRUMENT, shares); - } - - @Override - public void creditUserShares(String userId, String instrument, long shares) { - Wallet w = ensureWallet(userId); - w.addAvailableShares(instrument, shares); - } - - @Override - public void creditUserCash(String userId, long cash) { - Wallet w = ensureWallet(userId); - w.addAvailableCash(cash); - } - - @Override - public Wallet getWallet(String userId) { - return wallets.get(userId); - } - - @Override - public void settleTrade(Trade trade) { - Order buy = orderRepository.findById(trade.getBuyOrderId()).orElse(null); - Order sell = orderRepository.findById(trade.getSellOrderId()).orElse(null); - - if (buy == null || sell == null) return; - - Wallet buyerWallet = ensureWallet(buy.getUserId()); - Wallet sellerWallet = ensureWallet(sell.getUserId()); - Reservation buyRes = reservations.get(buy.getId()); - Reservation sellRes = reservations.get(sell.getId()); - - int qty = (int) trade.getQuantity(); - long tradeValue = trade.getPrice() * (long) qty; - String instrument = buy.getInstrument(); - // Process Buy Side - if (buyRes != null) { - long cashtoDebitFromReserved = buyRes.reduceBy(qty); - buyerWallet.debitReservedCash(cashtoDebitFromReserved); - - long refund = cashtoDebitFromReserved - tradeValue; - if (refund > 0) buyerWallet.addAvailableCash(refund); - - buyerWallet.addAvailableShares(instrument, qty); - } - - // Process Sell Side - if (sellRes != null) { - sellRes.reduceBy(qty); - sellerWallet.debitReservedShares(instrument, (long) qty); - sellerWallet.addAvailableCash(tradeValue); - } - - // Cleanup completed reservations - if (buyRes != null && buyRes.getRemainingQty() == 0) { - reservations.remove(buy.getId()); - } - if (sellRes != null && sellRes.getRemainingQty() == 0) { - reservations.remove(sell.getId()); - } - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java deleted file mode 100644 index a452b8a..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java +++ /dev/null @@ -1,34 +0,0 @@ -package org.example.matching.Wallets; - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -@Service -public class RiskManager { - - private final WalletService walletService; - private final OrderRepository orderRepository; // 1. Add the field - - // No-arg constructor for Main.java usage - public RiskManager() { - this.walletService = null; - this.orderRepository = null; - } - - // Constructor for dependency injection - public RiskManager(WalletService walletService, OrderRepository orderRepository) { - this.walletService = walletService; - this.orderRepository = orderRepository; - } - - - public boolean checkAndReserve(Order order) { - // currently just delegates to walletService which performs the reserve attempt - //orderRepository.save(order); - - // 2. NOW ATTEMPT TO RESERVE - return walletService.reserveForOrder(order); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java b/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java deleted file mode 100644 index 73c862e..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java +++ /dev/null @@ -1,17 +0,0 @@ -package org.example.matching.Wallets; - -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; - -public interface WalletService { - boolean reserveForOrder(Order order); - void releaseReservation(String orderId); - void settleTrade(Trade trade); - - // Additional methods needed for testing and API - void creditUserShares(String userId, long shares); - void creditUserShares(String userId, String instrument, long shares); - void creditUserCash(String userId, long cash); - Wallet getWallet(String userId); -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java b/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java deleted file mode 100644 index 8c5f10f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java +++ /dev/null @@ -1,29 +0,0 @@ -package org.example.matching.api.advice; - -import org.springframework.http.HttpStatus; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.MethodArgumentNotValidException; -import org.springframework.web.bind.annotation.ExceptionHandler; -import org.springframework.web.bind.annotation.RestControllerAdvice; - -import java.util.HashMap; -import java.util.Map; - -@RestControllerAdvice -public class ApiExceptionHandler { - - // Catch Validation Errors (@Valid) - @ExceptionHandler(MethodArgumentNotValidException.class) - public ResponseEntity> handleValidation(MethodArgumentNotValidException ex) { - Map errors = new HashMap<>(); - ex.getBindingResult().getFieldErrors().forEach(error -> - errors.put(error.getField(), error.getDefaultMessage())); - return ResponseEntity.badRequest().body(errors); - } - - // Catch Custom Logic Errors - @ExceptionHandler(IllegalStateException.class) - public ResponseEntity handleBusinessError(IllegalStateException ex) { - return ResponseEntity.status(HttpStatus.CONFLICT).body(ex.getMessage()); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java deleted file mode 100644 index d955ddd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java +++ /dev/null @@ -1,36 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.service.MarketDataService; -import org.example.matching.matching.MatchingEngine; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.GetMapping; -import org.springframework.web.bind.annotation.PathVariable; -import org.springframework.web.bind.annotation.RequestMapping; -import org.springframework.web.bind.annotation.RestController; - -import java.util.Map; - -@RequestMapping("/api/market") -@RestController -@RequiredArgsConstructor -public class MarketController { - private final MatchingEngine matchingEngine; - private final MarketDataService marketDataService; - -// public MarketController(MatchingEngine matchingEngine) { -// this.matchingEngine = matchingEngine; -// } - - @GetMapping("/orderbook/{instrument}") - public ResponseEntity getOrderBook(@PathVariable String instrument) { - OrderBookResponse snapshot = matchingEngine.getSnapshot(instrument); - return ResponseEntity.ok(snapshot); - } - - @GetMapping("/ticker/{instrument}") - public ResponseEntity> getTicker(@PathVariable String instrument){ - return ResponseEntity.ok(marketDataService.getSnapshots(instrument.toUpperCase())); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java deleted file mode 100644 index 7e6dacd..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java +++ /dev/null @@ -1,39 +0,0 @@ -package org.example.matching.api.controller; - -import jakarta.validation.Valid; -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.api.service.OrderService; -import org.example.matching.model.Order; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import javax.swing.text.html.parser.Entity; -import java.util.Optional; - -@RestController -@RequestMapping("/api/orders") -@RequiredArgsConstructor -public class OrderController { -private final OrderService orderService; -private final OrderRepository orderRepository; - - @PostMapping - public ResponseEntity placeOrder(@Valid @RequestBody OrderRequest request) { - OrderResponse response = orderService.processOrder(request); - - if (response.getStatus().equals("REJECTED")) { - return ResponseEntity.badRequest().body(response); - } - return ResponseEntity.ok(response); - } - - @GetMapping("/{id}") - public ResponseEntity getOrder(@PathVariable String id){ - return orderRepository.findById(id) - .map(ResponseEntity::ok) - .orElse(ResponseEntity.notFound().build()); - -}} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java b/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java deleted file mode 100644 index 2b0b3ba..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java +++ /dev/null @@ -1,59 +0,0 @@ -package org.example.matching.api.controller; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.DepositRequest; -import org.example.matching.api.dto.WalletResponse; -import org.example.matching.model.Wallet; -import org.springframework.http.ResponseEntity; -import org.springframework.web.bind.annotation.*; - -import java.util.Map; -import java.util.stream.Collectors; - -@RestController -@RequestMapping("/api/wallets") -@RequiredArgsConstructor -public class WalletController { - - private final WalletService walletService; - - @GetMapping("/{userId}") - public ResponseEntity getWallet(@PathVariable String userId){ - Wallet wallet = walletService.getWallet(userId); - - // Convert AtomicLong maps to Long maps for JSON response - Map availableShares = wallet.getAvailableShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - Map reservedShares = wallet.getReservedShares().entrySet().stream() - .collect(Collectors.toMap( - Map.Entry::getKey, - entry -> entry.getValue().get() - )); - - WalletResponse response = WalletResponse.builder() - .userId(userId) - .availableCash(wallet.getAvailableCash()) - .reservedCash(wallet.getReservedCash()) - .availableShares(availableShares) - .reservedShares(reservedShares) - .build(); - return ResponseEntity.ok(response); - } - @PostMapping("/depositCash") - public ResponseEntity depositCash(@RequestBody DepositRequest request) { - walletService.creditUserCash(request.getUserId(), request.getAmount()); - return ResponseEntity.ok("Deposit Successful"); - } - - @PostMapping("/depositShares") - public ResponseEntity depositShares(@RequestBody DepositRequest request) { - // Credit shares for the specific instrument - walletService.creditUserShares(request.getUserId(), request.getInstrument(), request.getAmount()); - return ResponseEntity.ok("Shares Deposited Successfully"); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java deleted file mode 100644 index 875f533..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java +++ /dev/null @@ -1,26 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class DepositRequest { - private String userId; - private long amount; - private String instrument; // Optional: used if depositing shares instead of cash - - public String getUserId() { - return userId; - } - - public long getAmount() { - return amount; - } - - public String getInstrument() { - return instrument; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java deleted file mode 100644 index ce2e349..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java +++ /dev/null @@ -1,18 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.List; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderBookResponse { - private String instrument; - private List bids; - private List asks; -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java deleted file mode 100644 index 9d8577f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java +++ /dev/null @@ -1,21 +0,0 @@ -package org.example.matching.api.dto; - -import org.example.matching.model.Order; -import org.example.matching.model.OrderSide; - -import java.util.UUID; - -public class OrderMapper { - public static Order toDomain(OrderRequest request) { - Order order = new Order( - UUID.randomUUID().toString(), - request.getUserId(), - request.getPrice(), - (int) request.getQuantity(), - System.currentTimeMillis(), - OrderSide.valueOf(request.getSide().toUpperCase()) - ); - order.setInstrument(request.getInstrument()); - return order; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java deleted file mode 100644 index eba85b9..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java +++ /dev/null @@ -1,57 +0,0 @@ -package org.example.matching.api.dto; - -import jakarta.validation.constraints.NotBlank; -import jakarta.validation.constraints.Pattern; -import jakarta.validation.constraints.Positive; -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; -import lombok.Getter; - -@AllArgsConstructor -@NoArgsConstructor -@Data -@Getter -public class OrderRequest { - @NotBlank(message = "User ID is required") - private String userId; - - @NotBlank(message = "Instrument is required") - private String instrument; - - @Pattern(regexp = "BUY|SELL", message = "Side must be BUY or SELL") - private String side; - - @Positive(message = "Price must be greater than zero") - private long price; - - @Positive(message = "Quantity must be greater than zero") - private long quantity; - - @NotBlank(message = "Idempotency key is required") - private String idempotencyKey; // Unique string from the frontend - - public String getUserId() { - return userId; - } - - public String getInstrument() { - return instrument; - } - - public String getSide() { - return side; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public String getIdempotencyKey() { - return idempotencyKey; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java deleted file mode 100644 index f9013fe..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java +++ /dev/null @@ -1,21 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class OrderResponse { - private String orderId; - private String status; // "ACCEPTED", "REJECTED" - private String message; // "Insufficient funds" or "Success" - private long timestamp; - - public String getStatus() { - return status; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java deleted file mode 100644 index 42a886a..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java +++ /dev/null @@ -1,13 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Data; -import lombok.NoArgsConstructor; - -@Data -@NoArgsConstructor -@AllArgsConstructor -public class PriceLevel { - private Long price; - private Long quantity; -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java b/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java deleted file mode 100644 index ef95c21..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java +++ /dev/null @@ -1,20 +0,0 @@ -package org.example.matching.api.dto; - -import lombok.AllArgsConstructor; -import lombok.Builder; -import lombok.Data; -import lombok.NoArgsConstructor; - -import java.util.Map; - -@Data -@Builder -@NoArgsConstructor -@AllArgsConstructor -public class WalletResponse { - private String userId; - private long availableCash; - private long reservedCash; - private Map availableShares; - private Map reservedShares; -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java deleted file mode 100644 index 93bf0e8..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/LiquidBotService.java +++ /dev/null @@ -1,29 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.api.dto.OrderRequest; -import org.springframework.stereotype.Service; - -@Service -@RequiredArgsConstructor -public class LiquidBotService { - private final OrderService orderService; - public void seedMarket(String yesTicker, String noTicker) { - // Providing liquidity for YES - placeBotOrder(yesTicker, "BUY", 45, 1000); // Bot buys from users at 45c - placeBotOrder(yesTicker, "SELL", 55, 1000); // Bot sells to users at 55c - - // Providing liquidity for NO - placeBotOrder(noTicker, "BUY", 45, 1000); // Bot buys from users at 45c - placeBotOrder(noTicker, "SELL", 55, 1000); // Bot sells to users at 55c - } - private void placeBotOrder(String ticker, String side, long price, long qty){ - OrderRequest req = new OrderRequest(); - req.setUserId("HOUSE_BOT"); - req.setInstrument(ticker); - req.setSide(side); - req.setPrice(price); - req.setQuantity(qty); - orderService.processOrder(req); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java deleted file mode 100644 index 2df098b..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java +++ /dev/null @@ -1,67 +0,0 @@ -package org.example.matching.api.service; - -import org.springframework.stereotype.Service; -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.CopyOnWriteArrayList; - -@Service -public class MarketDataService { - //stores last price each stock is traded at - private final Map lastPrices = new ConcurrentHashMap<>(); - - // Average V(volume)WAP = sum(price*quantity)/sum(quantity) - private final Map sumPV = new ConcurrentHashMap<>(); - private final Map sumV = new ConcurrentHashMap<>(); - // To track the "Top of Book" (Best Bid/Ask) - private final Map bestBids = new ConcurrentHashMap<>(); - private final Map bestAsks = new ConcurrentHashMap<>(); - - public void UpdateTrade(String instrument, long price , long quantity){ - lastPrices.put(instrument,(double)price); - sumPV.merge(instrument,(double)(price*quantity),Double::sum); - sumV.merge(instrument,quantity,Long::sum); - } - - public void updateBookTops(String instrument, Double bestBid, Double bestAsk) { - if (bestBid != null) bestBids.put(instrument, bestBid); - if (bestAsk != null) bestAsks.put(instrument, bestAsk); - } - - - public Map getSnapshots(String instrument){ - double ltp = lastPrices.getOrDefault(instrument,0.0); - double vwap = sumV.getOrDefault(instrument,0L)==0?0: sumPV.get(instrument)/ sumV.get(instrument); - double bid = bestBids.getOrDefault(instrument, 0.0); - double ask = bestAsks.getOrDefault(instrument, 0.0); - double mid = (bid > 0 && ask > 0) ? (bid + ask) / 2.0 : ltp; - - return Map.of( - "instrument", instrument, - "lastPrice", ltp, - "vwap", vwap, - "bid", bid, - "ask", ask, - "mid", mid, - "spread", (ask - bid) - ); - } - - // A list of the last 10 prices - private final Map> priceHistory = new ConcurrentHashMap<>(); - - public void updateTrade(String instrument, long price, long quantity) { - lastPrices.put(instrument, (double) price); - - // Track History - priceHistory.computeIfAbsent(instrument, k -> new CopyOnWriteArrayList<>()) - .add(0, (double) price); // Add to the front - - // Keep only the last 10 - List history = priceHistory.get(instrument); - if (history.size() > 10) history.remove(history.size() - 1); - - // ... (rest of your VWAP logic) - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java b/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java deleted file mode 100644 index 2e749f5..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java +++ /dev/null @@ -1,78 +0,0 @@ -package org.example.matching.api.service; - -import lombok.RequiredArgsConstructor; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.api.dto.OrderMapper; -import org.example.matching.api.dto.OrderRequest; -import org.example.matching.api.dto.OrderResponse; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.stereotype.Service; - -import java.util.List; -import java.util.Map; -import java.util.concurrent.ConcurrentHashMap; - -@Service -@RequiredArgsConstructor -public class OrderService { - - private final MarketDataService marketDataService; - private final RiskManager riskManager; - private final MatchingEngine matchingEngine; - private final WalletService walletService; - private final EventJournal eventJournal; - private final OrderRepository orderRepository; - - // In-memory idempotency store: Key -> Previous Response - private final Map idempotencyStore = new ConcurrentHashMap<>(); - - public OrderResponse processOrder(OrderRequest request) { - if (idempotencyStore.containsKey(request.getIdempotencyKey())) { - return idempotencyStore.get(request.getIdempotencyKey()); - } - - Order order = OrderMapper.toDomain(request); - - if (!riskManager.checkAndReserve(order)) { - return buildResponse(order, "REJECTED", "Insufficient funds or shares"); - } - - orderRepository.save(order); - eventJournal.appendRaw("ORDER_PLACED: " + order.getId()); - - // Matching Engine execution - List trades = matchingEngine.placeOrder(order); - - for (Trade trade : trades) { - // so once trade is done manage the cash and shares of the users using their ids and stuff in walletService below - walletService.settleTrade(trade); - marketDataService.UpdateTrade(order.getInstrument(),trade.getPrice(),trade.getQuantity()); - eventJournal.appendRaw("TRADE_SETTLED: " + trade.getBuyOrderId() + " <-> " + trade.getSellOrderId()); - } - var book = matchingEngine.getOrderBookForMarketData(order.getInstrument()); - marketDataService.updateBookTops( - order.getInstrument(), - book.getBestBid(), - book.getBestAsk() - ); - - OrderResponse response = buildResponse(order, "ACCEPTED", "Success"); - idempotencyStore.put(request.getIdempotencyKey(), response); - return response; - } - - private OrderResponse buildResponse(Order order, String status, String msg) { - return OrderResponse.builder() - .orderId(order.getId()) - .status(status) - .message(msg) - .timestamp(System.currentTimeMillis()) - .build(); - } -} - diff --git a/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java b/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java deleted file mode 100644 index 4f808ee..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java +++ /dev/null @@ -1,4 +0,0 @@ -package org.example.matching.app; - -public class MatchingEngineApplication { -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java b/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java deleted file mode 100644 index 918e00c..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java +++ /dev/null @@ -1,40 +0,0 @@ -package org.example.matching.config; - -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.orderbook.InMemoryOrderRepository; -import org.example.matching.orderbook.OrderRepository; -import org.springframework.context.annotation.Bean; -import org.springframework.context.annotation.Configuration; - -@Configuration -public class MatchingEngineConfig { - - @Bean - public EventJournal eventJournal() { - return new EventJournal(); - } - - @Bean - public OrderRepository orderRepository() { - return new InMemoryOrderRepository(); - } - - @Bean - public WalletService walletService(OrderRepository orderRepository) { - return new InMemoryWalletService(orderRepository); - } - - @Bean - public RiskManager riskManager(WalletService walletService, OrderRepository orderRepository) { - return new RiskManager(walletService, orderRepository); - } - - @Bean - public MatchingEngine matchingEngine(EventJournal eventJournal) { - return new MatchingEngine(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java b/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java deleted file mode 100644 index 48d66f5..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java +++ /dev/null @@ -1,100 +0,0 @@ -//import lombok.AllArgsConstructor; -// -//import java.io.FileWriter; -//import java.io.IOException; -//import java.nio.file.FileAlreadyExistsException; -//import java.nio.file.Files; -//import java.nio.file.Path; -// -//@AllArgsConstructor -//public class EventJournal { -// private final Path journalDir; -// private final Path journalFile; -// -// public EventJournal() { -// try { -// journalDir = Path.of("journals"); -// Files.createDirectories(journalDir); -// -// journalFile = Path.of("engine.log"); -// try { -// Files.createFile(journalFile); -// } catch (FileAlreadyExistsException e) { -// // File already exists, that's fine -// } -// } catch (IOException e) { -//throw new RuntimeException("failed to journal"); -// } -// -// } -// public synchronized void append(String event){ -// try(FileWriter writer = new FileWriter(journalFile.toFile(),true)){ -// writer.write(event); -// writer.write(System.lineSeparator()); -// writer.flush(); -// } catch (IOException e) { -// throw new RuntimeException("Failed to write to journal", e); -// } -// } -// } -// - -package org.example.matching.journal; - -import java.io.FileWriter; -import java.io.IOException; -import java.nio.file.*; -import java.util.List; - -public class EventJournal { - - private final Path journalDir; - private final Path journalFile; - - public EventJournal() { - try { - journalDir = Path.of("journals"); - Files.createDirectories(journalDir); - journalFile = journalDir.resolve("engine.log"); - if (!Files.exists(journalFile)) { - Files.createFile(journalFile); - } - } catch (IOException e) { - throw new RuntimeException("Failed to initialize EventJournal", e); - } - } - - public synchronized void appendRaw(String eventBody) { - try (FileWriter writer = new FileWriter(journalFile.toFile(), true)) { - writer.write(eventBody); - writer.write(System.lineSeparator()); - writer.flush(); - // for production consider FileDescriptor.sync to fsync() - } catch (IOException e) { - throw new RuntimeException("Failed to write to journal", e); - } - } - - // helpers with consistent format - public void appendOrder(String id, String user, String side, long price, int qty, long ts) { - String line = String.format("ORDER %s %s %s %d %d %d", id, user, side, price, qty, ts); - appendRaw(line); - } - - public void appendTrade(String buyId, String sellId, long price, int qty, long ts) { - String line = String.format("TRADE %s %s %d %d %d", buyId, sellId, price, qty, ts); - appendRaw(line); - } - - public List readAllLines() { - try { - return Files.readAllLines(journalFile); - } catch (IOException e) { - throw new RuntimeException("Failed to read journal", e); - } - } - - public Path getJournalFile() { - return journalFile; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java b/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java deleted file mode 100644 index d15634f..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java +++ /dev/null @@ -1,184 +0,0 @@ -//package org.example.matching.matching; -// -//import org.example.matching.journal.EventJournal; -//import org.example.matching.model.Order; -//import org.example.matching.model.OrderBook; -//import org.example.matching.model.Trade; -// -//import java.util.List; -// -//public class MatchingEngine { -// -// private final OrderBook orderBook; -// private final EventJournal journal; -// -// public MatchingEngine() { -// this.orderBook = new OrderBook(); -// this.journal = new EventJournal(); -// -// } -// -// public List placeOrder(Order order) { -// -// journal.append("ORDER " + -// order.getId() + " " + -// order.getUserId() + " " + -// -// order.getPrice() + " " + -// order.getQuantity() -// +" "+ order.getTimestamp() + " "+ order.getSide()); -// -// List trades = orderBook.placeOrder(order); -// -// for (Trade trade : trades) { -// journal.append("TRADE " + -// trade.getBuyOrderId() + " " + -// trade.getSellOrderId() + " " + -// trade.getPrice() + " " + -// trade.getQuantity() -// +trade.getTimestamp()); -// } -// -// return trades; -// } -// -// public String dumpBook() { -// return orderBook.dumpBook(); -// } -//} - - -package org.example.matching.matching; - -import jakarta.annotation.PostConstruct; -import org.example.matching.api.dto.OrderBookResponse; -import org.example.matching.api.dto.PriceLevel; -import org.example.matching.journal.EventJournal; -import org.example.matching.model.Order; -import org.example.matching.model.OrderBook; -import org.example.matching.model.Trade; -import org.springframework.stereotype.Service; - -import java.util.Deque; -import java.util.List; -import java.util.Map; -import java.util.TreeMap; -import java.util.concurrent.ConcurrentHashMap; - - -@Service -public class MatchingEngine { - - private final Map orderBooks = new ConcurrentHashMap<>(); - private final EventJournal journal; - - public MatchingEngine() { - this.journal = new EventJournal(); - } - - @PostConstruct - public void init() { - // Pre-create books for stocks you want to test - orderBooks.put("AAPL", new OrderBook()); - orderBooks.put("TSLA", new OrderBook()); - orderBooks.put("BTC", new OrderBook()); - } - - // Helper method to get the right order book - private OrderBook getOrderBook(String instrument) { - return orderBooks.computeIfAbsent(instrument, k -> new OrderBook()); - } - // Add this inside your MatchingEngine class - public OrderBook getOrderBookForMarketData(String instrument) { - return orderBooks.getOrDefault(instrument, new OrderBook()); - } - - // live mode records to journal; record=false used during replay - public List placeOrder(Order order, boolean record) { - if (record) { - journal.appendOrder(order.getId(), order.getUserId(), order.getSide().name(), order.getPrice(), order.getQuantity(), order.getTimestamp()); - } - - OrderBook book = getOrderBook(order.getInstrument() != null ? order.getInstrument() : "DEFAULT"); - List trades = book.placeOrder(order); - - if (record) { - for (Trade t : trades) { - journal.appendTrade(t.getBuyOrderId(), t.getSellOrderId(), t.getPrice(), (int) t.getQuantity(), t.getTimestamp()); - } - } - return trades; - } - - // convenience for normal usage - public List placeOrder(Order order) { - return placeOrder(order, true); - } - - // used by replay to rebuild book without re-journaling - public void replayOrder(Order order) { - placeOrder(order, false); - } - - // replay all lines from journal (optional helper) - public void replayJournal() { - List lines = journal.readAllLines(); - for (String raw : lines) { - if (raw == null || raw.isBlank()) continue; - String[] parts = raw.split("\\s+"); - if (parts.length < 2) continue; - if ("ORDER".equals(parts[0]) && parts.length >= 7) { - // ORDER id user side price qty ts - String id = parts[1]; - String user = parts[2]; - String side = parts[3]; - long price = Long.parseLong(parts[4]); - int qty = Integer.parseInt(parts[5]); - long ts = Long.parseLong(parts[6]); - // create order via your Order constructor (check arg ordering) - Order o = new Order(id, user, price, qty, ts, org.example.matching.model.OrderSide.valueOf(side), "DEFAULT"); - replayOrder(o); - } - // ignore TRADE lines during replay - } - } - /** - * Returns a list of price levels for a specific side (bids or asks). - * It sums up the quantities of all orders at each price point. - */ - private List getPriceLevels(TreeMap> side) { - return side.entrySet().stream() - .map(entry -> { - long price = entry.getKey(); - // Sum the quantity of every Order sitting in the Deque for this price - long totalQty = entry.getValue().stream() - .mapToLong(Order::getQuantity) - .sum(); - return new PriceLevel(price, totalQty); - }) - .toList(); - } - - - /** - * Creates a full snapshot of the book. - */ - public OrderBookResponse getSnapshot(String instrument) { - OrderBook book = getOrderBook(instrument); - return OrderBookResponse.builder() - .instrument(instrument) - .bids(getPriceLevels(book.getBids())) - .asks(getPriceLevels(book.getAsks())) - .build(); - } - - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - for (Map.Entry entry : orderBooks.entrySet()) { - sb.append("=== ORDER BOOK: ").append(entry.getKey()).append(" ===\n"); - sb.append(entry.getValue().dumpBook()); - sb.append("\n"); - } - return sb.toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Order.java b/backend/matching-engine/src/main/java/org/example/matching/model/Order.java deleted file mode 100644 index 69132a3..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Order.java +++ /dev/null @@ -1,93 +0,0 @@ -package org.example.matching.model; - -import lombok.RequiredArgsConstructor; - -import java.time.LocalDateTime; - -@RequiredArgsConstructor -public class Order { - String id; - String userId; - long price; - int quantity; - long timestamp; - OrderSide side; - String instrument; // Added for multi-book support - - public Order(String userId, long price, int quantity, long timestamp, OrderSide side) { - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = "DEFAULT"; // Default instrument - } - - public Order(String id, String userId, long price, int quantity, long timestamp, OrderSide side, String instrument) { - this.id = id; - this.userId = userId; - this.price = price; - this.quantity = quantity; - this.timestamp = timestamp; - this.side = side; - this.instrument = instrument != null ? instrument : "DEFAULT"; - } - - public String getId() { - return id; - } - - public String getUserId() { - return userId; - } - - public long getPrice() { - return price; - } - - public int getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } - - public OrderSide getSide() { - return side; - } - public void reduceQuantity(long delta) { - if (delta < 0) throw new IllegalArgumentException("delta must be >= 0"); - if (delta > quantity) throw new IllegalArgumentException("reduce more than remaining"); - this.quantity -= (int) delta; - } - @Override - public String toString() { - return "Order{" + - "id='" + id + '\'' + - ", userId='" + userId + '\'' + - ", price=" + price + - ", quantity=" + quantity + - ", timestamp=" + timestamp + - ", side=" + side + - '}'; - } - - public String getInstrument() { - return instrument; - } - - public void setInstrument(String instrument) { - this.instrument = instrument; - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java b/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java deleted file mode 100644 index aee9ed6..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/OrderBook.java +++ /dev/null @@ -1,259 +0,0 @@ -//package org.example.matching.model; -////Draft -// -// -//import com.sun.source.tree.BinaryTree; -//import com.sun.source.tree.ExpressionTree; -//import com.sun.source.tree.Tree; -//import com.sun.source.tree.TreeVisitor; -// -//import java.util.*; -// -//public class OrderBook { -// -// private OrderSide orderSide; -// private Order order; -// -// -// //Balancer that balances the percentage when it comes -// Long MoneyPool; -// TreeMap buy = new TreeMap<>(); -// TreeMap sell = new TreeMap<>(); -// //or TreeMap sell = new TreeMap<>(); -////or TreeMap> sellOrders = new TreeMap<>(); -// // sell.put -// //get list of orders from db -// // -//List trades = new ArrayList<>(); -//// assume we a.add(sell) -// //orderside che a = sell and buy -// //buy list -// //sell list -// //order1 is order1dto -// public Map Match(OrderSide a , TreeMap buy , TreeMap sell , Order order1){ -// // we get order1 from post req , order1dto ig , and take here -// if (order1.side==OrderSide.BUY){ -// long price = order1.price; -// long timestamp = order1.timestamp; -// if(price>0){ -// //we need to have a list of buy and sell guys. -// // putting in order before that we need the least of sell guys to see and sort so we need binary -// Long bestask = sell.firstKey(); // the least value in tree -// if(price>sell.firstKey()){ -// if(order1.quantity==bestask.quantity){ -// //sell all -// } -// if(//less quantity -// ){ -// //only share those -// } -// trades.add(order1); -// } -// /* if (price == //lest value of tree) -// Long bestask = sell.firstKey(); -// sell.remove(bestask) -// price -// // ) -// //remove sell.remove generate a trade impact algorithm of percentage or stock // later topic -// */ -// -// //1) Binary Search Tree -// //2) get last value -// //3) compare -// -// } -// -// } -// -// -// -// } -// -// -//} -// - -package org.example.matching.model; - -import org.example.matching.journal.EventJournal; - -import java.io.IOException; -import java.util.*; - -public class OrderBook { - - private final TreeMap> ask = new TreeMap<>(); - private final TreeMap> bids = new TreeMap<>(Comparator.reverseOrder()); - private final Map orderPriceIndex = new HashMap<>(); // orderId->price - - public OrderBook() { - } - public List placeOrder(Order incoming) { - List trades = new ArrayList<>(); - - if (incoming.getSide() == OrderSide.BUY) { - matchBuy(incoming, trades); - if (incoming.getQuantity() > 0) { - addToBook(bids, incoming); - } - } else { - matchSell(incoming, trades); - for(Trade t:trades) { - // Journal matches if needed - } - if (incoming.getQuantity() > 0) { - addToBook(ask, incoming); - } - } - return trades; - } - private void matchBuy(Order buy, List trades) { - while(buy.getQuantity()>0&& !ask.isEmpty()){ - //it is first seen if ask is not empty - Map.Entry> bestAskEntry = ask.firstEntry(); - //getting the root node of treemap i.e.top value of it . - long askPrice = bestAskEntry.getKey(); - // the long will be price do .key() is askprice of that node - - if(askPrice> buy.getPrice()){ - System.out.println("your order will fullfill once it matches the appropriate seller "); - break; - } - Deque queue = bestAskEntry.getValue(); - // it will be a single oblject and not queue, why is it in queue jere as the first node is object - //getting the first node - Order sell = queue.peekFirst(); - if(sell==null){ - ask.remove(askPrice); - continue; - } - long tradeQty = Math.min(buy.getQuantity(),sell.getQuantity()); - long tradePrice = sell.getPrice(); - long ts = System.currentTimeMillis(); - trades.add(new Trade(buy.getId(),sell.getId(),tradePrice,tradeQty,ts)); - - buy.reduceQuantity(tradeQty); - sell.reduceQuantity(tradeQty); - - if(sell.getQuantity()==0){ - queue.removeFirst(); - orderPriceIndex.remove(sell.getId()); - if(queue.isEmpty()) ask.remove(askPrice); - else{ - //paritally filled resting order remains - } - } - } - } - private void matchSell(Order sell, List trades) { - while (sell.getQuantity() > 0 && !bids.isEmpty()) { - Map.Entry> bestBidEntry = bids.firstEntry(); // because bids is reverseOrder - long bidPrice = bestBidEntry.getKey(); - // price crossing condition: best bid >= sell price - if (bidPrice < sell.getPrice()) break; - - Deque queue = bestBidEntry.getValue(); - Order buy = queue.peekFirst(); - if (buy == null) { - bids.remove(bidPrice); - continue; - } - - int tradedQty = Math.min(sell.getQuantity(), buy.getQuantity()); - long tradePrice = buy.getPrice(); // resting buy price (maker) - long ts = System.currentTimeMillis(); - trades.add(new Trade(buy.getId(), sell.getId(), tradePrice, tradedQty, ts)); - // a.createlogs(sell,new Trade(buy.getId(), sell.getId(), tradePrice, tradedQty, ts)); - sell.reduceQuantity(tradedQty); - buy.reduceQuantity(tradedQty); - - if (buy.getQuantity() == 0) { - queue.removeFirst(); - orderPriceIndex.remove(buy.getId()); - if (queue.isEmpty()) bids.remove(bidPrice); - } else { - // partial fill; buy stays - } - - // Handle sell order completion when quantity reaches 0 - if (sell.getQuantity() == 0) { - // Sell order is fully filled, remove from asks if it was added - // Note: incoming sell order isn't in the book yet, so no removal needed - } - } - } - // Inside your OrderBook.java model - public Double getBestBid() { - return bids.isEmpty() ? 0.0 : bids.lastKey().doubleValue(); - } - - public Double getBestAsk() { - return ask.isEmpty() ? 0.0 : ask.firstKey().doubleValue(); - } - private void addToBook(TreeMap> bookside, Order order){ - // treemap bookside and order order - - Deque q = bookside.computeIfAbsent(order.getPrice(),k->new ArrayDeque<>()); - q.addLast(order); - orderPriceIndex.put(order.getId(), order.getPrice());} - - public boolean cancel(String orderId) { - Long price = orderPriceIndex.get(orderId); - if (price == null) return false; - // try both sides (only one will contain it) - Deque q = ask.get(price); - if (q != null && removeFromQueue(q, orderId)) { - if (q.isEmpty()) ask.remove(price); - orderPriceIndex.remove(orderId); - return true; - } - q = bids.get(price); - if (q != null && removeFromQueue(q, orderId)) { - if (q.isEmpty()) bids.remove(price); - orderPriceIndex.remove(orderId); - return true; - } - return false; - } - - private boolean removeFromQueue(Deque q, String orderId) { - // linear scan; for higher performance maintain node references - Iterator it = q.iterator(); - while (it.hasNext()) { - Order o = it.next(); - if (o.getId().equals(orderId)) { - it.remove(); - return true; - } - } - return false; - } - public Optional bestAsk() { - return ask.isEmpty() ? Optional.empty() : Optional.of(ask.firstKey()); - } - public Optional bestBid() { - return bids.isEmpty() ? Optional.empty() : Optional.of(bids.firstKey()); - } - - // Add getters for MatchingEngine access - public TreeMap> getAsks() { - return ask; - } - - public TreeMap> getBids() { - return bids; - } - - public String dumpBook() { - StringBuilder sb = new StringBuilder(); - sb.append("ASKS:\n"); - for (Map.Entry> e : ask.entrySet()) { - sb.append(e.getKey()).append(" -> ").append(e.getValue()).append("\n"); - } - sb.append("BIDS:\n"); - for (Map.Entry> e : bids.entrySet()) { - sb.append(e.getKey()).append(" -> ").append(e.getValue()).append("\n"); - } - return sb.toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java b/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java deleted file mode 100644 index 2c98b1c..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/OrderSide.java +++ /dev/null @@ -1,8 +0,0 @@ -package org.example.matching.model; - -public enum OrderSide { -BUY, - SELL - - -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java b/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java deleted file mode 100644 index b93b588..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Reservation.java +++ /dev/null @@ -1,97 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.Setter; - -@Getter @Setter @AllArgsConstructor -public class Reservation { - private final String OrderId; - private final String userId; - private final long priceatReserve; - private int remainingQty; - private String instrument; // Add instrument field - - private long reservedCash; - private long reservedShares; - private final Boolean isBuy; - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = "MARKET"; // Default instrument - } - - public Reservation(String orderId, String userId, long priceatReserve, int remainingQty, Boolean isBuy, String instrument) { - OrderId = orderId; - this.userId = userId; - this.priceatReserve = priceatReserve; - this.remainingQty = remainingQty; - this.isBuy = isBuy; - this.instrument = instrument != null ? instrument : "MARKET"; - } - - public long reduceBy(int qty) { - if (qty <= 0 || remainingQty <= 0) { - return 0; - } - - // Don't consume more than what is left in this specific reservation - int consumed = Math.min(qty, remainingQty); - long cashUsed =0; - if (isBuy) { - // Calculate how much cash was 'used' for this portion of the trade - cashUsed = (long) consumed * priceatReserve; - - // Subtract the used cash from the total reserved cash - this.reservedCash -= cashUsed; - - if (this.reservedCash < 0) this.reservedCash = 0; - } else { - // For a sell order, we just reduce the count of shares held - this.reservedShares -= consumed; - - if (this.reservedShares < 0) this.reservedShares = 0; - } - - // Finally, reduce the quantity so we know how much of the order is left to fill - this.remainingQty -= consumed; - return cashUsed; - } - - // Additional getters needed by the codebase - public String getOrderId() { - return OrderId; - } - - public String getUserId() { - return userId; - } - - public Boolean getIsBuy() { - return isBuy; - } - - public long getReservedCash() { - return reservedCash; - } - - public long getReservedShares() { - return reservedShares; - } - - public int getRemainingQty() { - return remainingQty; - } - - public void setReservedCash(long reservedCash) { - this.reservedCash = reservedCash; - } - - public void setReservedShares(long reservedShares) { - this.reservedShares = reservedShares; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java b/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java deleted file mode 100644 index fde50a9..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Trade.java +++ /dev/null @@ -1,40 +0,0 @@ -package org.example.matching.model; - -import lombok.AllArgsConstructor; -import lombok.Getter; -import lombok.NoArgsConstructor; -import lombok.Setter; -import lombok.ToString; - -@Getter -@Setter -@AllArgsConstructor -@NoArgsConstructor -@ToString -public class Trade { - private String buyOrderId; - private String sellOrderId; - private long price; - private long quantity; - private long timestamp; - - public String getBuyOrderId() { - return buyOrderId; - } - - public String getSellOrderId() { - return sellOrderId; - } - - public long getPrice() { - return price; - } - - public long getQuantity() { - return quantity; - } - - public long getTimestamp() { - return timestamp; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java b/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java deleted file mode 100644 index 48c7dba..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/model/Wallet.java +++ /dev/null @@ -1,134 +0,0 @@ -package org.example.matching.model; - -import java.util.concurrent.ConcurrentHashMap; -import java.util.concurrent.atomic.AtomicLong; - -public class Wallet { - private final String UserID; - private final AtomicLong availablecash = new AtomicLong(0); - private final AtomicLong reservedcash = new AtomicLong(0); - - // Fixed: Standardized on AtomicLong for all maps - private final ConcurrentHashMap availableShares = new ConcurrentHashMap<>(); - private final ConcurrentHashMap reservedShares = new ConcurrentHashMap<>(); - - public Wallet(String userID) { - this.UserID = userID; - } - - public String getUserId() { - return UserID; - } - - public long getAvailableCash() { - return availablecash.get(); - } - - public long getReservedCash() { - return reservedcash.get(); - } - - public void addAvailableCash(long amount) { - availablecash.addAndGet(amount); - } - - public boolean tryReserveCash(long amount) { - while (true) { - long avail = availablecash.get(); - //if avail less than the amount needed - if (avail < amount) return false; - if (availablecash.compareAndSet(avail, avail - amount)) { - reservedcash.addAndGet(amount); - return true; - //else avail = avail - amount and reserve cash .add amount - } - } - } - - public void releaseReserveCash(long amount) { - //in release reserve cash we just subtract the amount from the reservedcash and add it back to the available cash. - reservedcash.addAndGet(-amount); - availablecash.addAndGet(amount); - } - -//remove the money from the reserves - public void debitReservedCash(long amount) { - reservedcash.addAndGet(-amount); - - } - - // Fixed: Returns along to match AtomicLong, and handles the Map lookup safely - public long getAvailableShares(String instrument) { - AtomicLong val = availableShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - public long getReservedShares(String instrument) { - AtomicLong val = reservedShares.get(instrument); - return (val == null) ? 0L : val.get(); - } - - // Methods to get all shares for API responses - public ConcurrentHashMap getAvailableShares() { - return availableShares; - } - - public ConcurrentHashMap getReservedShares() { - return reservedShares; - } - - // get the quantity of the shares the available - //get the qty of reserved of shares - //pass the shares and the qty to reserve it - public boolean tryReserveShares(String instrument, long qty) { - // Fixed: Use AtomicLong and handle initialization correctly - // atomiclong does not hold it instead it points to a memory address - AtomicLong avail = availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); - AtomicLong reserved = reservedShares.computeIfAbsent(instrument, k -> new AtomicLong(0)); -// - // currently is the - while (true) { - long currentAvail = avail.get(); - if (currentAvail < qty) return false; -//if avail >qty - // avail and subtract from avail - if (avail.compareAndSet(currentAvail, currentAvail - qty)) { - reserved.addAndGet(qty); - return true; - } - } - } - // see if the instrument exists - //if not create it - // -//atomiclong avail = availableshares.computeifabsent(instrument , - //atomiclong resrved = resrvedshares.computeIfabsent(instrument,k-> new AtomicLong(0); - public void releaseReservedShares(String instrument, long qty) { - // Fixed: Use AtomicLong here to match the class fields - AtomicLong reserved = reservedShares.get(instrument); - AtomicLong avail = availableShares.get(instrument); - - if (reserved != null) { - reserved.addAndGet(-qty); - } - - if (avail != null) { - avail.addAndGet(qty); - } - } - - public void debitReservedShares(String instrument, long qty) { - // Fixed: Changed from AtomicInteger to AtomicLong - AtomicLong reserved = reservedShares.get(instrument); - if (reserved != null) { - reserved.addAndGet(-qty); - } - } - - //add so available shares . add the shares and in if not create and add - public void addAvailableShares(String instrument, long qty) { - // Fixed: Used AtomicLong in the lambda - availableShares.computeIfAbsent(instrument, k -> new AtomicLong(0)) - .addAndGet(qty); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java deleted file mode 100644 index 6ddee65..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java +++ /dev/null @@ -1,24 +0,0 @@ -package org.example.matching.orderbook; - -import org.example.matching.model.Order; -import org.springframework.stereotype.Repository; - -import java.util.HashMap; -import java.util.Map; -import java.util.Optional; -import java.util.concurrent.ConcurrentHashMap; - -@Repository -public class InMemoryOrderRepository implements OrderRepository { - private final Map map = new ConcurrentHashMap<>(); - - @Override - public void save(Order order){ - map.put(order.getId(),order); - } - @Override - public Optional findById(String OrderId){ - return Optional.ofNullable(map.get(OrderId)); - } - -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java deleted file mode 100644 index ced672e..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java +++ /dev/null @@ -1,114 +0,0 @@ -package org.example.matching.orderbook;//package org.example.matching.orderbook; -// -//import org.example.matching.journal.EventJournal; -//import org.example.matching.matching.MatchingEngine; -//import org.example.matching.model.Order; -//import org.example.matching.model.Trade; -// - -import org.example.matching.Wallets.InMemoryWalletService; -import org.example.matching.Wallets.RiskManager; -import org.example.matching.Wallets.WalletService; -import org.example.matching.journal.EventJournal; -import org.example.matching.matching.MatchingEngine; -import org.example.matching.model.Order; -import org.example.matching.model.Trade; -import org.example.matching.model.Wallet; -import org.example.matching.orderbook.OrderRepository; -import org.example.matching.validation.OrderValidator; - -import java.util.List; - -public class OrderOrchestrator { - - private final MatchingEngine matchingEngine; - private final EventJournal eventJournal; - private final OrderValidator orderValidator; - private final RiskManager riskManager; - private final OrderRepository orderRepository; - private final WalletService walletService; - - // Constructor for basic functionality - public OrderOrchestrator(MatchingEngine matchingEngine, - EventJournal eventJournal, OrderValidator orderValidator) { - this.matchingEngine = matchingEngine; - this.eventJournal = eventJournal; - this.orderValidator = orderValidator; - this.riskManager = null; - this.orderRepository = null; - this.walletService = null; - } - - // Full constructor with wallet and risk management - public OrderOrchestrator(MatchingEngine matchingEngine, - EventJournal eventJournal, - RiskManager riskManager, - OrderRepository orderRepository, - WalletService walletService) { - this.matchingEngine = matchingEngine; - this.eventJournal = eventJournal; - this.riskManager = riskManager; - this.orderRepository = orderRepository; - this.walletService = walletService; - this.orderValidator = new OrderValidator(); // Default validator - } - - public void submitOrder(Order order) { - if (!orderValidator.validate(order)) { - eventJournal.appendRaw("REJECT " + order.getId() + " INVALID_ORDER"); - return; - } - - // Use risk manager and wallet service if available - if (riskManager != null && walletService != null) { - // Check and reserve funds/shares - if (!riskManager.checkAndReserve(order)) { - eventJournal.appendRaw("REJECT " + order.getId() + " INSUFFICIENT_FUNDS"); - return; - } - - // Save order to repository - orderRepository.save(order); - } - - // 1️⃣ Journal the incoming order - eventJournal.appendRaw(formatOrder(order)); - - // 2️⃣ Send to matching engine - List trades = matchingEngine.placeOrder(order); - - // 3️⃣ Settle trades and journal results - if (walletService != null) { - for (Trade trade : trades) { - walletService.settleTrade(trade); - eventJournal.appendRaw(formatTrade(trade)); - } - } else { - // Just journal trades if no wallet service - for (Trade trade : trades) { - eventJournal.appendRaw(formatTrade(trade)); - } - } - } - - private String formatOrder(Order order) { - return String.format( - "ORDER %s %s %s %d %d", - order.getId(), - order.getUserId(), - order.getSide(), - order.getPrice(), - order.getQuantity() - ); - } - - private String formatTrade(Trade trade) { - return String.format( - "TRADE %s %s %d %d", - trade.getBuyOrderId(), - trade.getSellOrderId(), - trade.getPrice(), - trade.getQuantity() - ); - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java b/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java deleted file mode 100644 index 94c86f2..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java +++ /dev/null @@ -1,14 +0,0 @@ -package org.example.matching.orderbook; - - -import lombok.AllArgsConstructor; -import org.example.matching.model.Order; -import org.springframework.stereotype.Repository; - -import java.util.Optional; - -//@Repository -public interface OrderRepository { - void save(Order order); - Optional findById(String orderId); -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java b/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java deleted file mode 100644 index 5363524..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java +++ /dev/null @@ -1,10 +0,0 @@ -package org.example.matching.util; - -import java.util.UUID; - -public class IdGenerator { - - public static String newId() { - return UUID.randomUUID().toString(); - } -} diff --git a/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java b/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java deleted file mode 100644 index 4780b53..0000000 --- a/backend/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java +++ /dev/null @@ -1,34 +0,0 @@ -package org.example.matching.validation; - -import org.example.matching.model.Order; - -public class OrderValidator { - public boolean validate(Order order) { - - if (order == null) { - return false; - } - - if (order.getId() == null || order.getId().isBlank()) { - return false; - } - - if (order.getUserId() == null || order.getUserId().isBlank()) { - return false; - } - - if (order.getSide() == null) { - return false; - } - - if (order.getPrice() <= 0) { - return false; - } - - if (order.getQuantity() <= 0) { - return false; - } - - return true; - } -} \ No newline at end of file diff --git a/backend/matching-engine/src/main/resources/application.properties b/backend/matching-engine/src/main/resources/application.properties deleted file mode 100644 index b2860ce..0000000 --- a/backend/matching-engine/src/main/resources/application.properties +++ /dev/null @@ -1,12 +0,0 @@ -# Server Configuration -server.port=8080 - -# Application Configuration -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example.matching=DEBUG -logging.level.org.springframework.web=INFO - -# Jackson Configuration (for JSON serialization) -spring.jackson.serialization.indent-output=true diff --git a/backend/matching-engine/target/classes/application.properties b/backend/matching-engine/target/classes/application.properties deleted file mode 100644 index b2860ce..0000000 --- a/backend/matching-engine/target/classes/application.properties +++ /dev/null @@ -1,12 +0,0 @@ -# Server Configuration -server.port=8080 - -# Application Configuration -spring.application.name=matching-engine - -# Logging Configuration -logging.level.org.example.matching=DEBUG -logging.level.org.springframework.web=INFO - -# Jackson Configuration (for JSON serialization) -spring.jackson.serialization.indent-output=true diff --git a/backend/matching-engine/target/classes/org/example/Main.class b/backend/matching-engine/target/classes/org/example/Main.class deleted file mode 100644 index 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a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst +++ /dev/null @@ -1,37 +0,0 @@ -org/example/matching/api/controller/MarketController.class -org/example/Main.class -org/example/matching/app/MatchingEngineApplication.class -org/example/matching/model/Trade.class -org/example/matching/model/OrderSide.class -org/example/matching/api/dto/OrderResponse.class -org/example/matching/journal/EventJournal.class -org/example/matching/Wallets/WalletService.class -org/example/matching/Wallets/InMemoryWalletService.class -org/example/matching/model/Reservation.class -org/example/matching/validation/OrderValidator.class -org/example/matching/api/controller/OrderController.class -org/example/matching/api/dto/OrderBookResponse$OrderBookResponseBuilder.class -org/example/matching/api/advice/ApiExceptionHandler.class -org/example/matching/model/OrderBook.class -org/example/matching/api/dto/WalletResponse$WalletResponseBuilder.class -org/example/matching/orderbook/OrderOrchestrator.class -org/example/matching/api/dto/OrderResponse$OrderResponseBuilder.class -org/example/matching/orderbook/InMemoryOrderRepository.class -org/example/matching/matching/MatchingEngine.class -org/example/matching/model/Order.class -org/example/matching/api/dto/DepositRequest.class -org/example/matching/api/dto/PriceLevel.class -org/example/matching/api/dto/WalletResponse.class -org/example/matching/Replay.class -org/example/matching/util/IdGenerator.class -org/example/matching/api/controller/WalletController.class -org/example/matching/Wallets/RiskManager.class -org/example/matching/api/dto/OrderMapper.class -org/example/matching/api/dto/OrderBookResponse.class -org/example/matching/api/dto/OrderRequest.class -org/example/matching/config/MatchingEngineConfig.class -org/example/matching/api/service/MarketDataService.class -org/example/matching/orderbook/OrderRepository.class -org/example/matching/MatchingEngineApplication.class -org/example/matching/model/Wallet.class -org/example/matching/api/service/OrderService.class diff --git a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst deleted file mode 100644 index d31a6fd..0000000 --- a/backend/matching-engine/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst +++ /dev/null @@ -1,34 +0,0 @@ -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/app/MatchingEngineApplication.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/journal/EventJournal.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Trade.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/InMemoryOrderRepository.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/MatchingEngineApplication.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/WalletResponse.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/RiskManager.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderOrchestrator.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderBook.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/WalletController.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Wallet.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/InMemoryWalletService.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/PriceLevel.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/OrderController.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderResponse.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/advice/ApiExceptionHandler.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/controller/MarketController.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/OrderService.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/validation/OrderValidator.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/orderbook/OrderRepository.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/Main.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Order.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/Reservation.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Wallets/WalletService.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderBookResponse.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/DepositRequest.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/service/MarketDataService.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderRequest.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/matching/MatchingEngine.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/Replay.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/util/IdGenerator.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/model/OrderSide.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/api/dto/OrderMapper.java -/Users/aumpatel/Desktop/Spring/Strongx/matching-engine/src/main/java/org/example/matching/config/MatchingEngineConfig.java diff --git a/backend/matching-engine/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst b/backend/matching-engine/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst deleted file mode 100644 index e69de29..0000000 diff --git a/backend/src/main/java/org/example/Main.java b/backend/src/main/java/org/example/Main.java deleted file mode 100644 index 407f157..0000000 --- a/backend/src/main/java/org/example/Main.java +++ /dev/null @@ -1,7 +0,0 @@ -package org.example; - -public class Main { - public static void main(String[] args) { - System.out.println("Hello world!"); - } -} \ No newline at end of file diff --git a/backend/src/pom.xml b/backend/src/pom.xml deleted file mode 100644 index 39b72ca..0000000 --- a/backend/src/pom.xml +++ /dev/null @@ -1,30 +0,0 @@ - - - 4.0.0 - - org.example - Strongx - 1.0-SNAPSHOT - pom - - common - matching-engine - - - - org.projectlombok - lombok - 1.18.42 - provided - - - - - 19 - 19 - UTF-8 - - - \ No newline at end of file diff --git a/frontend/src/components/Category/CategoryBar.tsx b/frontend/src/components/Category/CategoryBar.tsx index 444ee99..af7c548 100644 --- a/frontend/src/components/Category/CategoryBar.tsx +++ b/frontend/src/components/Category/CategoryBar.tsx @@ -28,7 +28,7 @@ export default function CategoryBar() { + ); +} diff --git a/frontend/src/components/MarketCard/MarketCard.tsx b/frontend/src/components/MarketCard/MarketCard.tsx new file mode 100644 index 0000000..7b9e472 --- /dev/null +++ b/frontend/src/components/MarketCard/MarketCard.tsx @@ -0,0 +1,171 @@ +interface Candidate { + name: string; + image: string; + payout: string; + odds: string; + color: string; +} + +interface MarketCardProps { + title: string; + candidates: Candidate[]; + volume: string; + marketCount: string; + newsText: string; + currentIndex?: number; + totalCards?: number; +} + +export default function MarketCard({ + title, + candidates, + volume, + marketCount, + newsText, + currentIndex = 1, + totalCards = 7, +}: MarketCardProps) { + return ( +
+ {/* Header with navigation */} +
+

{title}

+
+ + + {currentIndex} of {totalCards} + + +
+
+ +
+ {/* Left side - Market info */} +
+
+ Market + Pays out + Odds +
+ + {/* Candidates */} + {candidates.map((candidate, index) => ( +
+
+ {candidate.name} +
+

{candidate.name}

+
+
+
+ {candidate.payout} + + {candidate.odds} + +
+ ))} + + {/* Volume and markets */} +
+ {volume} vol + {marketCount} markets +
+ + {/* News section */} +
+

+ News {newsText} +

+
+
+ + {/* Right side - Chart and legend */} +
+ {/* Legend */} +
+
+ {candidates.map((candidate, index) => ( +
+
+ {candidate.name} + {candidate.odds} +
+ ))} +
+ Kalshi +
+ + {/* Chart placeholder */} +
+ + {/* Grid lines */} + {[0, 20, 40, 60, 80, 100].map((y) => ( + + ))} + + {/* Sample chart lines */} + + + {candidates[2] && ( + + )} + + + {/* Y-axis labels */} +
+ 40% + 30% + 20% + 10% + 0% +
+ + {/* X-axis labels */} +
+ May + Jul + Oct + Dec + Mar +
+
+
+
+
+ ); +} diff --git a/frontend/src/components/TopicCard/TopicCard.tsx b/frontend/src/components/TopicCard/TopicCard.tsx new file mode 100644 index 0000000..710d7b7 --- /dev/null +++ b/frontend/src/components/TopicCard/TopicCard.tsx @@ -0,0 +1,80 @@ +interface Option { + label: string; + payout: string; + odds: string; + color?: string; +} + +interface TopicCardProps { + category: string; + categoryIcon: React.ReactNode; + title: string; + date: string; + options: Option[]; + volume: string; + marketCount: string; +} + +export default function TopicCard({ + category, + categoryIcon, + title, + date, + options, + volume, + marketCount, +}: TopicCardProps) { + return ( +
+ {/* Category Header */} +
+
+ {categoryIcon} +
+ + {category} + +
+ + {/* Title */} +

+ {title} +

+ + {/* Date */} +

{date}

+ + {/* Options */} +
+ {options.map((option, index) => ( +
+
+
+ {option.label} +
+
+
+
+ {option.payout} + + {option.odds} + +
+
+ ))} +
+ + {/* Footer */} +
+ {volume} vol + {marketCount} markets +
+
+ ); +} diff --git a/frontend/src/pages/Home.tsx b/frontend/src/pages/Home.tsx index eab6d71..c0cea39 100644 --- a/frontend/src/pages/Home.tsx +++ b/frontend/src/pages/Home.tsx @@ -1,9 +1,298 @@ import Header from "../components/Header/Header"; +import MarketCard from "../components/MarketCard/MarketCard"; +import InfoCard from "../components/InfoCard/InfoCard"; +import TopicCard from "../components/TopicCard/TopicCard"; + export default function Home() { - return ( - <> -
- - - ) + const candidates = [ + { + name: "Gavin Newsom", + image: "https://via.placeholder.com/40", + payout: "5.25x", + odds: "18%", + color: "#4a9eff", + }, + { + name: "J.D. Vance", + image: "https://via.placeholder.com/40", + payout: "5.25x", + odds: "17%", + color: "#00d4aa", + }, + { + name: "Marco Rubio", + image: "https://via.placeholder.com/40", + payout: "5.25x", + odds: "18%", + color: "#ffa500", + }, + ]; + + return ( +
+
+ +
+ {/* Market Card */} + + + {/* Info Cards */} +
+ + + + } + title="Markets over Monopolies" + description="How fair markets protect consumers" + /> + + + + } + title="Responsible Trading" + description="Tools and tips for trading smart" + /> + + + + } + title="Market Integrity" + description="Learn how Kalshi prevents insider trading" + /> +
+ + {/* Politics Section */} +
+
+

Politics

+ + + +
+ +
+ + + + } + title="How long will the government shutdown last?" + date="Feb 14 @ 10:00AM" + options={[ + { label: "At least 60 days", payout: "2.05x", odds: "46%", color: "#48CAE4" }, + { label: "At least 55 days", payout: "1.65x", odds: "59%", color: "#48CAE4" }, + ]} + volume="$4,199,600" + marketCount="21" + /> + + + + + } + title="Will members of Congress be banned from trading stocks?" + date="Before Jan 21, 2029" + options={[ + { label: "Before Jan 21, 2029", payout: "1.59x", odds: "56%", color: "#00d4aa" }, + { label: "Before 2027", payout: "7.14x", odds: "12%", color: "#00d4aa" }, + ]} + volume="$222,525" + marketCount="3" + /> + + + + + } + title="Will Americans receive tariff stimulus checks?" + date="Before 2027" + options={[ + { label: "Before 2027", payout: "5.25x", odds: "18%", color: "#48CAE4" }, + { label: "Before August", payout: "10.4x", odds: "9%", color: "#4a9eff" }, + ]} + volume="$1,334,816" + marketCount="9" + /> + + + + + } + title="What will the US tariff rate on China be on July 1?" + date="Between 10% and 19.99%" + options={[ + { label: "Between 10% and 19.99%", payout: "1.47x", odds: "69%", color: "#00d4aa" }, + { label: "Between 20% and 29.99%", payout: "4.35x", odds: "27%", color: "#00d4aa" }, + ]} + volume="$36,656" + marketCount="7" + /> +
+
+ + {/* Elections Section */} +
+
+

Elections

+ + + +
+ +
+ + + + } + title="Who will win the 2028 Presidential Election?" + date="Nov 5, 2028" + options={[ + { label: "Republican", payout: "1.85x", odds: "52%", color: "#ff4444" }, + { label: "Democrat", payout: "2.15x", odds: "45%", color: "#4444ff" }, + ]} + volume="$8,500,000" + marketCount="15" + /> + + + + + } + title="Will Democrats control the Senate in 2026?" + date="Jan 3, 2027" + options={[ + { label: "Yes", payout: "2.85x", odds: "35%", color: "#4444ff" }, + { label: "No", payout: "1.55x", odds: "65%", color: "#ff4444" }, + ]} + volume="$2,100,000" + marketCount="8" + /> +
+
+ + {/* Companies Section */} +
+
+

Companies

+ + + +
+ +
+ + + + } + title="Will Apple stock hit $250 by end of 2025?" + date="Dec 31, 2025" + options={[ + { label: "Yes", payout: "2.25x", odds: "44%", color: "#00d4aa" }, + { label: "No", payout: "1.75x", odds: "56%", color: "#ff6b6b" }, + ]} + volume="$3,450,000" + marketCount="12" + /> + + + + + } + title="Will Tesla deliver 2M vehicles in 2025?" + date="Dec 31, 2025" + options={[ + { label: "Yes", payout: "3.15x", odds: "32%", color: "#00d4aa" }, + { label: "No", payout: "1.45x", odds: "68%", color: "#ff6b6b" }, + ]} + volume="$1,890,000" + marketCount="6" + /> +
+
+ + {/* Economics Section */} +
+
+

Economics

+ + + +
+ +
+ + + + } + title="Will inflation rate be below 2% by end of 2025?" + date="Dec 31, 2025" + options={[ + { label: "Yes", payout: "1.95x", odds: "51%", color: "#00d4aa" }, + { label: "No", payout: "2.05x", odds: "49%", color: "#ff6b6b" }, + ]} + volume="$5,200,000" + marketCount="18" + /> + + + + + } + title="Will the Fed cut rates in Q2 2025?" + date="Jun 30, 2025" + options={[ + { label: "Yes", payout: "2.65x", odds: "38%", color: "#00d4aa" }, + { label: "No", payout: "1.62x", odds: "62%", color: "#ff6b6b" }, + ]} + volume="$6,750,000" + marketCount="22" + /> +
+
+
+
+ ); } \ No newline at end of file From 81fb8ec0fff7c3e5941992976e09e204e1fea3dd Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Thu, 12 Mar 2026 23:36:48 -0400 Subject: [PATCH 09/13] feat: Update MarketCard component layout for mobile and desktop, enhance candidate display, and adjust styles --- .../src/components/MarketCard/MarketCard.tsx | 58 +++++++++++++++++-- 1 file changed, 53 insertions(+), 5 deletions(-) diff --git a/frontend/src/components/MarketCard/MarketCard.tsx b/frontend/src/components/MarketCard/MarketCard.tsx index 7b9e472..9f8be25 100644 --- a/frontend/src/components/MarketCard/MarketCard.tsx +++ b/frontend/src/components/MarketCard/MarketCard.tsx @@ -26,10 +26,10 @@ export default function MarketCard({ totalCards = 7, }: MarketCardProps) { return ( -
+
{/* Header with navigation */}
-

{title}

+

{title}

-
+ {/* Mobile/Tablet Layout (< 768px) */} +
+
+ Market +
+ Pays out + Odds +
+
+ + {/* Candidates */} + {candidates.map((candidate, index) => ( +
+
+ {candidate.name} +
+

{candidate.name}

+
+
+
+
+ {candidate.payout} + + {candidate.odds} + +
+
+ ))} + + {/* Volume and markets */} +
+ {volume} vol + {marketCount} markets +
+ + {/* News section */} +
+

+ News {newsText} +

+
+
+ + {/* Desktop Layout (>= 768px) */} +
{/* Left side - Market info */}
@@ -71,7 +119,7 @@ export default function MarketCard({
{candidate.payout} - + {candidate.odds}
@@ -104,7 +152,7 @@ export default function MarketCard({
))}
- Kalshi + Max
{/* Chart placeholder */} From 3f9f382be34eb6ddcef9659c147999b7e70f4ab8 Mon Sep 17 00:00:00 2001 From: Ved Patel Date: Sat, 14 Mar 2026 19:34:42 -0400 Subject: [PATCH 10/13] feat: Integrate Redux for state management, add Footer and CategoryBar components, and implement search functionality with shake effect --- frontend/package-lock.json | 113 +++++++++- frontend/package.json | 2 + .../src/components/Category/CategoryBar.tsx | 21 +- frontend/src/components/Footer/Footer.tsx | 41 ++++ frontend/src/components/Search/SearchBar.tsx | 16 +- frontend/src/main.tsx | 10 +- frontend/src/pages/Home.tsx | 2 + frontend/src/store/categorySlice.ts | 29 +++ frontend/src/store/footerSlice.ts | 74 ++++++ frontend/src/store/homeSlice.ts | 210 ++++++++++++++++++ frontend/src/store/searchSlice.ts | 35 +++ frontend/src/store/store.ts | 17 ++ 12 files changed, 542 insertions(+), 28 deletions(-) create mode 100644 frontend/src/components/Footer/Footer.tsx create mode 100644 frontend/src/store/categorySlice.ts create mode 100644 frontend/src/store/footerSlice.ts create mode 100644 frontend/src/store/homeSlice.ts create mode 100644 frontend/src/store/searchSlice.ts create mode 100644 frontend/src/store/store.ts diff --git a/frontend/package-lock.json b/frontend/package-lock.json index def3310..d50fda0 100644 --- a/frontend/package-lock.json +++ b/frontend/package-lock.json @@ -8,9 +8,11 @@ "name": "frontend", "version": "0.0.0", "dependencies": { + "@reduxjs/toolkit": "^2.11.2", "@tailwindcss/vite": "^4.2.1", "react": "^19.2.0", "react-dom": "^19.2.0", + "react-redux": "^9.2.0", "react-router-dom": "^7.13.1", "tailwindcss": "^4.2.1" }, @@ -981,6 +983,32 @@ "@jridgewell/sourcemap-codec": "^1.4.14" } }, + "node_modules/@reduxjs/toolkit": { + "version": "2.11.2", + "resolved": "https://registry.npmjs.org/@reduxjs/toolkit/-/toolkit-2.11.2.tgz", + "integrity": "sha512-Kd6kAHTA6/nUpp8mySPqj3en3dm0tdMIgbttnQ1xFMVpufoj+ADi8pXLBsd4xzTRHQa7t/Jv8W5UnCuW4kuWMQ==", + "license": "MIT", + "dependencies": { + "@standard-schema/spec": "^1.0.0", + "@standard-schema/utils": "^0.3.0", + "immer": "^11.0.0", + "redux": "^5.0.1", + "redux-thunk": "^3.1.0", + "reselect": "^5.1.0" + }, + "peerDependencies": { + "react": "^16.9.0 || ^17.0.0 || ^18 || ^19", + "react-redux": "^7.2.1 || ^8.1.3 || ^9.0.0" + }, + "peerDependenciesMeta": { + "react": { + "optional": true + }, + "react-redux": { + "optional": true + } + } + }, "node_modules/@rolldown/pluginutils": { "version": "1.0.0-rc.3", "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-rc.3.tgz", @@ -1313,6 +1341,18 @@ "win32" ] }, + "node_modules/@standard-schema/spec": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz", + "integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==", + "license": "MIT" + }, + "node_modules/@standard-schema/utils": { + "version": "0.3.0", + "resolved": "https://registry.npmjs.org/@standard-schema/utils/-/utils-0.3.0.tgz", + "integrity": "sha512-e7Mew686owMaPJVNNLs55PUvgz371nKgwsc4vxE49zsODpJEnxgxRo2y/OKrqueavXgZNMDVj3DdHFlaSAeU8g==", + "license": "MIT" + }, "node_modules/@tailwindcss/node": { "version": "4.2.1", "resolved": "https://registry.npmjs.org/@tailwindcss/node/-/node-4.2.1.tgz", @@ -1642,7 +1682,7 @@ "version": "19.2.14", "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.14.tgz", "integrity": "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w==", - "dev": true, + "devOptional": true, "license": "MIT", "dependencies": { "csstype": "^3.2.2" @@ -1658,6 +1698,12 @@ "@types/react": "^19.2.0" } }, + "node_modules/@types/use-sync-external-store": { + "version": "0.0.6", + "resolved": "https://registry.npmjs.org/@types/use-sync-external-store/-/use-sync-external-store-0.0.6.tgz", + "integrity": "sha512-zFDAD+tlpf2r4asuHEj0XH6pY6i0g5NeAHPn+15wk3BV6JA69eERFXC1gyGThDkVa1zCyKr5jox1+2LbV/AMLg==", + "license": "MIT" + }, "node_modules/@typescript-eslint/eslint-plugin": { "version": "8.56.1", "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.56.1.tgz", @@ -2216,7 +2262,7 @@ "version": "3.2.3", "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz", "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==", - "dev": true, + "devOptional": true, "license": "MIT" }, "node_modules/debug": { @@ -2703,6 +2749,16 @@ "node": ">= 4" } }, + "node_modules/immer": { + "version": "11.1.4", + "resolved": "https://registry.npmjs.org/immer/-/immer-11.1.4.tgz", + "integrity": "sha512-XREFCPo6ksxVzP4E0ekD5aMdf8WMwmdNaz6vuvxgI40UaEiu6q3p8X52aU6GdyvLY3XXX/8R7JOTXStz/nBbRw==", + "license": "MIT", + "funding": { + "type": "opencollective", + "url": "https://opencollective.com/immer" + } + }, "node_modules/import-fresh": { "version": "3.3.1", "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.1.tgz", @@ -3373,6 +3429,29 @@ "react": "^19.2.4" } }, + "node_modules/react-redux": { + "version": "9.2.0", + "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.2.0.tgz", + "integrity": "sha512-ROY9fvHhwOD9ySfrF0wmvu//bKCQ6AeZZq1nJNtbDC+kk5DuSuNX/n6YWYF/SYy7bSba4D4FSz8DJeKY/S/r+g==", + "license": "MIT", + "dependencies": { + "@types/use-sync-external-store": "^0.0.6", + "use-sync-external-store": "^1.4.0" + }, + "peerDependencies": { + "@types/react": "^18.2.25 || ^19", + "react": "^18.0 || ^19", + "redux": "^5.0.0" + }, + "peerDependenciesMeta": { + "@types/react": { + "optional": true + }, + "redux": { + "optional": true + } + } + }, "node_modules/react-refresh": { "version": "0.18.0", "resolved": "https://registry.npmjs.org/react-refresh/-/react-refresh-0.18.0.tgz", @@ -3421,6 +3500,27 @@ "react-dom": ">=18" } }, + "node_modules/redux": { + "version": "5.0.1", + "resolved": "https://registry.npmjs.org/redux/-/redux-5.0.1.tgz", + "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w==", + "license": "MIT" + }, + "node_modules/redux-thunk": { + "version": "3.1.0", + "resolved": "https://registry.npmjs.org/redux-thunk/-/redux-thunk-3.1.0.tgz", + "integrity": "sha512-NW2r5T6ksUKXCabzhL9z+h206HQw/NJkcLm1GPImRQ8IzfXwRGqjVhKJGauHirT0DAuyy6hjdnMZaRoAcy0Klw==", + "license": "MIT", + "peerDependencies": { + "redux": "^5.0.0" + } + }, + "node_modules/reselect": { + "version": "5.1.1", + "resolved": "https://registry.npmjs.org/reselect/-/reselect-5.1.1.tgz", + "integrity": "sha512-K/BG6eIky/SBpzfHZv/dd+9JBFiS4SWV7FIujVyJRux6e45+73RaUHXLmIR1f7WOMaQ0U1km6qwklRQxpJJY0w==", + "license": "MIT" + }, "node_modules/resolve-from": { "version": "4.0.0", "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz", @@ -3702,6 +3802,15 @@ "punycode": "^2.1.0" } }, + "node_modules/use-sync-external-store": { + "version": "1.6.0", + "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz", + "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==", + "license": "MIT", + "peerDependencies": { + "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0" + } + }, "node_modules/vite": { "version": "7.3.1", "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.1.tgz", diff --git a/frontend/package.json b/frontend/package.json index 776c2f8..2eaa31b 100644 --- a/frontend/package.json +++ b/frontend/package.json @@ -10,9 +10,11 @@ "preview": "vite preview" }, "dependencies": { + "@reduxjs/toolkit": "^2.11.2", "@tailwindcss/vite": "^4.2.1", "react": "^19.2.0", "react-dom": "^19.2.0", + "react-redux": "^9.2.0", "react-router-dom": "^7.13.1", "tailwindcss": "^4.2.1" }, diff --git a/frontend/src/components/Category/CategoryBar.tsx b/frontend/src/components/Category/CategoryBar.tsx index af7c548..54b38bb 100644 --- a/frontend/src/components/Category/CategoryBar.tsx +++ b/frontend/src/components/Category/CategoryBar.tsx @@ -1,20 +1,9 @@ import { useRef } from "react"; - -const categories = [ - "Trending", - "Politics", - "Sports", - "Culture", - "Crypto", - "Climate", - "Economics", - "Mentions", - "Companies", - "Financials", - "Tech & Science", -]; +import { useSelector } from "react-redux"; +import type { RootState } from "../../store/store"; export default function CategoryBar() { + const categories = useSelector((state: RootState) => state.category.categories); const scrollRef = useRef(null); const handleWheel = (e: React.WheelEvent) => { @@ -25,7 +14,7 @@ export default function CategoryBar() { }; return ( -
); -} \ No newline at end of file +} diff --git a/frontend/src/components/Footer/Footer.tsx b/frontend/src/components/Footer/Footer.tsx new file mode 100644 index 0000000..64d51cc --- /dev/null +++ b/frontend/src/components/Footer/Footer.tsx @@ -0,0 +1,41 @@ +import { useSelector } from "react-redux"; +import type { RootState } from "../../store/store"; + +export default function Footer() { + const { sections, copyright, disclaimer } = useSelector( + (state: RootState) => state.footer + ); + + return ( + + ); +} diff --git a/frontend/src/components/Search/SearchBar.tsx b/frontend/src/components/Search/SearchBar.tsx index b7112ef..2ad884a 100644 --- a/frontend/src/components/Search/SearchBar.tsx +++ b/frontend/src/components/Search/SearchBar.tsx @@ -1,17 +1,20 @@ -import { useState } from "react"; +import { useDispatch, useSelector } from "react-redux"; +import type { RootState, AppDispatch } from "../../store/store"; +import { triggerShake, resetShake } from "../../store/searchSlice"; -export default function MaxLogo() { - const [shouldShake, setShouldShake] = useState(false); +export default function SearchBar() { + const dispatch = useDispatch(); + const shouldShake = useSelector((state: RootState) => state.search.shouldShake); const handleFocus = () => { - setShouldShake(true); - setTimeout(() => setShouldShake(false), 500); + dispatch(triggerShake()); + setTimeout(() => dispatch(resetShake()), 500); }; return (
- - - , + + + + + , ) diff --git a/frontend/src/pages/Home.tsx b/frontend/src/pages/Home.tsx index c0cea39..b8c53b2 100644 --- a/frontend/src/pages/Home.tsx +++ b/frontend/src/pages/Home.tsx @@ -1,4 +1,5 @@ import Header from "../components/Header/Header"; +import Footer from "../components/Footer/Footer"; import MarketCard from "../components/MarketCard/MarketCard"; import InfoCard from "../components/InfoCard/InfoCard"; import TopicCard from "../components/TopicCard/TopicCard"; @@ -293,6 +294,7 @@ export default function Home() {
+