feat: add usage tracking for app and workerpool

schema.graphql

@@ -136,6 +136,8 @@ type App implements Ressource @entity {
   checksum: Bytes!
   mrenclave: Bytes!
   timestamp: BigInt! # last transfer
+  usageCount: BigInt!
+  lastUsageTimestamp: BigInt!
   usages: [Deal!]! @derivedFrom(field: "app")
   orders: [AppOrder!]! @derivedFrom(field: "app")
   transfers: [AppTransfer!]! @derivedFrom(field: "app")
@@ -161,6 +163,8 @@ type Workerpool implements Ressource @entity {
   workerStakeRatio: BigInt!
   schedulerRewardRatio: BigInt!
   timestamp: BigInt! # last transfer
+  usageCount: BigInt!
+  lastUsageTimestamp: BigInt!
   usages: [Deal!]! @derivedFrom(field: "workerpool")
   orders: [WorkerpoolOrder!]! @derivedFrom(field: "workerpool")
   events: [WorkerpoolEvent!]! @derivedFrom(field: "workerpool")

src/Modules/IexecPoco.ts

@@ -47,13 +47,15 @@ import {
     createContributionID,
     createEventID,
     fetchAccount,
+    fetchApp,
     fetchApporder,
     fetchContribution,
     fetchDatasetorder,
     fetchDeal,
     fetchProtocol,
     fetchRequestorder,
     fetchTask,
+    fetchWorkerpool,
     fetchWorkerpoolorder,
     logTransaction,
     toRLC,
@@ -148,6 +150,22 @@ export function handleOrdersMatched(event: OrdersMatchedEvent): void {
     requestorder.requester = viewedDeal.requester.toHex();
     requestorder.save();
 
+    // Update app usage statistics
+    let app = fetchApp(deal.app);
+    if (app != null) {
+        app.usageCount = app.usageCount.plus(deal.botSize);
+        app.lastUsageTimestamp = event.block.timestamp;
+        app.save();
+    }
+
+    // Update workerpool usage statistics
+    let workerpool = fetchWorkerpool(deal.workerpool);
+    if (workerpool != null) {
+        workerpool.usageCount = workerpool.usageCount.plus(deal.botSize);
+        workerpool.lastUsageTimestamp = event.block.timestamp;
+        workerpool.save();
+    }
+
     let orderMatchedEvent = new OrdersMatched(createEventID(event));
     orderMatchedEvent.transaction = logTransaction(event).id;
     orderMatchedEvent.timestamp = event.block.timestamp;

src/Registries/Appregistry.ts

@@ -47,6 +47,8 @@ export function handleTransferApp(ev: TransferEvent): void {
   app.checksum = contract.m_appChecksum();
   app.mrenclave = contract.m_appMREnclave();
   app.timestamp = ev.block.timestamp;
+  app.usageCount = BigInt.zero();
+  app.lastUsageTimestamp = BigInt.zero();
   app.save();
 
   let transfer = new AppTransfer(createEventID(ev));

src/Registries/Workerpoolregistry.ts

@@ -47,6 +47,8 @@ export function handleTransferWorkerpool(ev: TransferEvent): void {
   workerpool.workerStakeRatio = contract.m_workerStakeRatioPolicy();
   workerpool.schedulerRewardRatio = contract.m_schedulerRewardRatioPolicy();
   workerpool.timestamp = ev.block.timestamp;
+  workerpool.usageCount = BigInt.zero();
+  workerpool.lastUsageTimestamp = BigInt.zero();
   workerpool.save();
 
   let transfer = new WorkerpoolTransfer(createEventID(ev));

src/utils.ts

@@ -13,6 +13,7 @@ import {
 
 import {
     Account,
+    App,
     AppOrder,
     Bulk,
     BulkSlice,
@@ -23,6 +24,7 @@ import {
     RequestOrder,
     Task,
     Transaction,
+    Workerpool,
     WorkerpoolOrder,
 } from '../generated/schema';
 
@@ -72,6 +74,14 @@ export function fetchAccount(id: string): Account {
     return account as Account;
 }
 
+export function fetchApp(id: string): App | null {
+    return App.load(id);
+}
+
+export function fetchWorkerpool(id: string): Workerpool | null {
+    return Workerpool.load(id);
+}
+
 export function fetchDeal(id: string): Deal {
     let deal = Deal.load(id);
     if (deal == null) {

tests/unit/Modules/IexecPoco.test.ts

@@ -11,6 +11,7 @@ import {
     test,
 } from 'matchstick-as/assembly/index';
 import { OrdersMatched } from '../../../generated/Core/IexecInterfaceToken';
+import { App, Workerpool } from '../../../generated/schema';
 import { handleOrdersMatched } from '../../../src/Modules';
 import { toRLC } from '../../../src/utils';
 import { EventParamBuilder } from '../utils/EventParamBuilder';
@@ -52,6 +53,29 @@ describe('IexecPoco', () => {
     });
 
     test('Should handle OrdersMatched', () => {
+        // Create app and workerpool entities first (they should exist from registry)
+        let app = new App(appAddress.toHex());
+        app.owner = appOwner.toHex();
+        app.name = 'TestApp';
+        app.type = 'DOCKER';
+        app.multiaddr = mockBytes32('multiaddr');
+        app.checksum = mockBytes32('checksum');
+        app.mrenclave = mockBytes32('mrenclave');
+        app.timestamp = BigInt.zero();
+        app.usageCount = BigInt.zero();
+        app.lastUsageTimestamp = BigInt.zero();
+        app.save();
+
+        let workerpool = new Workerpool(workerpoolAddress.toHex());
+        workerpool.owner = workerpoolOwner.toHex();
+        workerpool.description = 'TestWorkerpool';
+        workerpool.workerStakeRatio = BigInt.fromI32(50);
+        workerpool.schedulerRewardRatio = BigInt.fromI32(10);
+        workerpool.timestamp = BigInt.zero();
+        workerpool.usageCount = BigInt.zero();
+        workerpool.lastUsageTimestamp = BigInt.zero();
+        workerpool.save();
+
         mockViewDeal(pocoAddress, dealId).returns([buildDefaultDeal()]);
         // Create the mock event
         let mockEvent = newTypedMockEventWithParams<OrdersMatched>(
@@ -115,6 +139,173 @@ describe('IexecPoco', () => {
         // Assert that a transaction was logged (if applicable)
         const transactionId = mockEvent.transaction.hash.toHex();
         assert.fieldEquals('Transaction', transactionId, 'id', transactionId);
+
+        // Assert that app usage statistics were updated
+        assert.fieldEquals('App', appAddress.toHex(), 'usageCount', botSize.toString());
+        assert.fieldEquals('App', appAddress.toHex(), 'lastUsageTimestamp', timestamp.toString());
+
+        // Assert that workerpool usage statistics were updated
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'usageCount',
+            botSize.toString(),
+        );
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'lastUsageTimestamp',
+            timestamp.toString(),
+        );
+    });
+
+    test('Should accumulate usage counts for multiple deals', () => {
+        const dealId1 = mockBytes32('dealId1');
+        const dealId2 = mockBytes32('dealId2');
+        const timestamp1 = BigInt.fromI32(123456789);
+        const timestamp2 = BigInt.fromI32(123456999);
+        const botSize1 = BigInt.fromI32(5);
+        const botSize2 = BigInt.fromI32(3);
+
+        // Create app and workerpool entities first (they should exist from registry)
+        let app = new App(appAddress.toHex());
+        app.owner = appOwner.toHex();
+        app.name = 'TestApp';
+        app.type = 'DOCKER';
+        app.multiaddr = mockBytes32('multiaddr');
+        app.checksum = mockBytes32('checksum');
+        app.mrenclave = mockBytes32('mrenclave');
+        app.timestamp = BigInt.zero();
+        app.usageCount = BigInt.zero();
+        app.lastUsageTimestamp = BigInt.zero();
+        app.save();
+
+        let workerpool = new Workerpool(workerpoolAddress.toHex());
+        workerpool.owner = workerpoolOwner.toHex();
+        workerpool.description = 'TestWorkerpool';
+        workerpool.workerStakeRatio = BigInt.fromI32(50);
+        workerpool.schedulerRewardRatio = BigInt.fromI32(10);
+        workerpool.timestamp = BigInt.zero();
+        workerpool.usageCount = BigInt.zero();
+        workerpool.lastUsageTimestamp = BigInt.zero();
+        workerpool.save();
+
+        // First deal
+        mockViewDeal(pocoAddress, dealId1).returns([
+            buildDeal(
+                appAddress,
+                appOwner,
+                appPrice,
+                datasetAddress,
+                datasetOwner,
+                datasetPrice,
+                workerpoolAddress,
+                workerpoolOwner,
+                workerpoolPrice,
+                trust,
+                category,
+                tag,
+                requester,
+                beneficiary,
+                callback,
+                params,
+                startTime,
+                botFirst,
+                botSize1,
+                workerStake,
+                schedulerRewardRatio,
+                sponsor,
+            ),
+        ]);
+
+        let mockEvent1 = newTypedMockEventWithParams<OrdersMatched>(
+            EventParamBuilder.init()
+                .bytes('dealid', dealId1)
+                .bytes('appHash', appHash)
+                .bytes('datasetHash', datasetHash)
+                .bytes('workerpoolHash', workerpoolHash)
+                .bytes('requestHash', requestHash)
+                .build(),
+        );
+        mockEvent1.block.timestamp = timestamp1;
+        mockEvent1.address = pocoAddress;
+
+        handleOrdersMatched(mockEvent1);
+
+        // Verify first deal usage
+        assert.fieldEquals('App', appAddress.toHex(), 'usageCount', botSize1.toString());
+        assert.fieldEquals('App', appAddress.toHex(), 'lastUsageTimestamp', timestamp1.toString());
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'usageCount',
+            botSize1.toString(),
+        );
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'lastUsageTimestamp',
+            timestamp1.toString(),
+        );
+
+        // Second deal
+        mockViewDeal(pocoAddress, dealId2).returns([
+            buildDeal(
+                appAddress,
+                appOwner,
+                appPrice,
+                datasetAddress,
+                datasetOwner,
+                datasetPrice,
+                workerpoolAddress,
+                workerpoolOwner,
+                workerpoolPrice,
+                trust,
+                category,
+                tag,
+                requester,
+                beneficiary,
+                callback,
+                params,
+                startTime,
+                botFirst,
+                botSize2,
+                workerStake,
+                schedulerRewardRatio,
+                sponsor,
+            ),
+        ]);
+
+        let mockEvent2 = newTypedMockEventWithParams<OrdersMatched>(
+            EventParamBuilder.init()
+                .bytes('dealid', dealId2)
+                .bytes('appHash', mockBytes32('appHash2'))
+                .bytes('datasetHash', mockBytes32('datasetHash2'))
+                .bytes('workerpoolHash', mockBytes32('workerpoolHash2'))
+                .bytes('requestHash', mockBytes32('requestHash2'))
+                .build(),
+        );
+        mockEvent2.block.timestamp = timestamp2;
+        mockEvent2.address = pocoAddress;
+
+        handleOrdersMatched(mockEvent2);
+
+        // Verify accumulated usage
+        const totalUsage = botSize1.plus(botSize2);
+        assert.fieldEquals('App', appAddress.toHex(), 'usageCount', totalUsage.toString());
+        assert.fieldEquals('App', appAddress.toHex(), 'lastUsageTimestamp', timestamp2.toString());
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'usageCount',
+            totalUsage.toString(),
+        );
+        assert.fieldEquals(
+            'Workerpool',
+            workerpoolAddress.toHex(),
+            'lastUsageTimestamp',
+            timestamp2.toString(),
+        );
     });
 
     test('Should handle OrdersMatched with bulk_cid when no dataset', () => {