Feat/sushi gnosis solution#130
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Add SushiSwapStampsRouter contract that swaps any Gnosis token → BZZ via SushiSwap V3 and atomically creates/tops up a Swarm stamp batch in a single transaction. Eliminates Relay dependency for same-chain swaps. - contracts/SushiSwapStampsRouter.sol: new router with single-hop, multi-hop (callback chaining), native xDAI support, and quote functions callable via eth_call - deploy/02_deploy_sushi_stamps_router.ts: deploy + auto-verify script (GnosisScan + Sourcify v2) - scripts/verify_router.ts, verify_registry.ts: standalone post-deploy verification scripts for both contracts - SushiQuotes.ts: frontend module for route discovery, quoting, and execution via the new router - constants.ts: add SUSHI_STAMPS_ROUTER_ADDRESS, SUSHI_FACTORY_ABI, SUSHI_STAMPS_ROUTER_ABI, GNOSIS_USDC_ADDRESS - SwapComponent.tsx: add Branch 2 (Gnosis + non-BZZ → SushiSwap); cross-chain traffic stays on Relay unchanged - hardhat.config.ts: enable viaIR and Sourcify v2 verification
The BZZ/USDC pool fee was hardcoded as 10000 (1%) which caused quoteSingleHop to revert because the Quoter looks up the pool via factory.getPool(tokenIn, BZZ, fee) — wrong fee = pool not found. - Read pool.fee() directly from the known pool address at runtime - Keep the pool address constant (BZZ_USDC_POOL_ADDRESS) but never assume the fee tier - Fall back to factory scan if the known address doesn't respond - Reorder FEE_TIERS to try 3000/500 before 10000 (more common tiers first) - Fix fee display: divide by 10000 not 100 (10000 bps = 1%, not 100%)
Two bugs in findSushiRoute broke non-BZZ Gnosis token routing: 1. ReferenceError: KNOWN_BZZ_POOLS reference was missed when renaming to bzzPoolCache in the previous commit — crashed immediately for any two-hop route (e.g. GBPe). 2. Case 3 (tokenIn → WXDAI → BZZ) used findWxdaiUsdcPool() for the tokenIn→WXDAI leg, which looked up a WXDAI/USDC pool instead of a tokenIn/WXDAI pool — completely wrong fee and path for any token that isn't USDC. - Replace findWxdaiUsdcPool() with generic findPoolBetween(tokenA, tokenB) that scans all fee tiers for any pair, with pair-keyed caching - Case 2: use findPoolBetween(tokenIn, USDC) + findDirectBzzPool(USDC) in parallel — both legs discovered correctly - Case 3: use findPoolBetween(tokenIn, WXDAI) + findDirectBzzPool(WXDAI) in parallel — both legs discovered correctly - Tokens like GBPe that route through WXDAI or USDC now work properly
The project tsconfig.json uses moduleResolution: bundler (Next.js), which ts-node can't handle, causing all `hardhat run scripts/*.ts` commands to fail with ERR_UNKNOWN_FILE_EXTENSION on Node 22. - Add tsconfig.hardhat.json with module: CommonJS / moduleResolution: node scoped to deploy/ and scripts/ only, leaving the Next.js tsconfig untouched - Set ts-node.project in package.json to point at the new tsconfig - Add npm scripts (verify:router, verify:registry, deploy:router) that set TS_NODE_PROJECT=tsconfig.hardhat.json automatically so plain `npm run verify:router` just works - Update script usage comments to show both the npm shortcut and the direct command with the required env var
- Filter Gnosis "from" tokens with findSushiRoute after LiFi balances; clear selection when nothing spendable remains. - Require V3 pool liquidity() > 0 in discovery so empty pools (e.g. COW/USDC) are not treated as routable; Quoter no longer reverts on those paths. - Add findSushiRoutes and try each candidate in getSushiQuote until a quote succeeds. - Export gnosisFromTokenCanReachBzz (BZZ direct or Sushi path to BZZ).
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Replaced the Relay bridge path for Gnosis-native swaps with a direct SushiSwap V3 integration. A new Solidity smart contract (SushiSwapStampsRouter) was written and deployed on Gnosis — it accepts any ERC-20 token (or native xDAI), swaps it to BZZ via SushiSwap V3, and atomically creates or tops up a Swarm postage stamp batch in a single transaction.