feat(koyo): Support Kōyō Finance on polygon (#883)

src/apps/koyo/koyo.definition.ts

@@ -24,6 +24,7 @@ export const KOYO_DEFINITION = appDefinition({
   supportedNetworks: {
     [Network.AURORA_MAINNET]: [AppAction.VIEW],
     [Network.MOONRIVER_MAINNET]: [AppAction.VIEW],
+    [Network.POLYGON_MAINNET]: [AppAction.VIEW],
   },
 
   primaryColor: '#fff',

src/apps/koyo/koyo.module.ts

@@ -9,6 +9,8 @@ import { AuroraKoyoPoolTokenFetcher } from './aurora/koyo.pool.token-fetcher';
 import { KoyoAppDefinition, KOYO_DEFINITION } from './koyo.definition';
 import { MoonriverKoyoBalanceFetcher } from './moonriver/koyo.balance-fetcher';
 import { MoonriverKoyoPoolTokenFetcher } from './moonriver/koyo.pool.token-fetcher';
+import { PolygonKoyoBalanceFetcher } from './polygon/koyo.balance-fetcher';
+import { PolygonKoyoPoolTokenFetcher } from './polygon/koyo.pool.token-fetcher';
 
 @Register.AppModule({
   appId: KOYO_DEFINITION.id,
@@ -20,6 +22,8 @@ import { MoonriverKoyoPoolTokenFetcher } from './moonriver/koyo.pool.token-fetch
     AuroraKoyoBalanceFetcher,
     MoonriverKoyoPoolTokenFetcher,
     MoonriverKoyoBalanceFetcher,
+    PolygonKoyoBalanceFetcher,
+    PolygonKoyoPoolTokenFetcher,
     KoyoAppDefinition,
   ],
 })

src/apps/koyo/polygon/koyo.balance-fetcher.ts

@@ -0,0 +1,37 @@
+import { Inject } from '@nestjs/common';
+
+import { TokenBalanceHelper } from '~app-toolkit';
+import { Register } from '~app-toolkit/decorators';
+import { presentBalanceFetcherResponse } from '~app-toolkit/helpers/presentation/balance-fetcher-response.present';
+import { BalanceFetcher } from '~balance/balance-fetcher.interface';
+import { Network } from '~types/network.interface';
+
+import { KOYO_DEFINITION } from '../koyo.definition';
+
+const appId = KOYO_DEFINITION.id;
+const network = Network.POLYGON_MAINNET;
+
+@Register.BalanceFetcher(appId, network)
+export class PolygonKoyoBalanceFetcher implements BalanceFetcher {
+  constructor(@Inject(TokenBalanceHelper) private readonly tokenBalanceHelper: TokenBalanceHelper) {}
+
+  async getPoolBalances(address: string) {
+    return this.tokenBalanceHelper.getTokenBalances({
+      address,
+      network,
+      appId,
+      groupId: KOYO_DEFINITION.groups.pool.id,
+    });
+  }
+
+  async getBalances(address: string) {
+    const [poolBalances] = await Promise.all([this.getPoolBalances(address)]);
+
+    return presentBalanceFetcherResponse([
+      {
+        label: 'Pools',
+        assets: poolBalances,
+      },
+    ]);
+  }
+}

src/apps/koyo/polygon/koyo.pool.token-fetcher.ts

@@ -0,0 +1,35 @@
+import { Inject } from '@nestjs/common';
+
+import { Register } from '~app-toolkit/decorators';
+import { BalancerV2PoolTokensHelper } from '~apps/balancer-v2';
+import { BalancerV2TheGraphPoolTokenDataStrategy } from '~apps/balancer-v2/helpers/balancer-v2.the-graph.pool-token-address-strategy';
+import { PositionFetcher } from '~position/position-fetcher.interface';
+import { AppTokenPosition } from '~position/position.interface';
+import { Network } from '~types/network.interface';
+
+import { KOYO_DEFINITION } from '../koyo.definition';
+
+const appId = KOYO_DEFINITION.id;
+const groupId = KOYO_DEFINITION.groups.pool.id;
+const network = Network.POLYGON_MAINNET;
+
+@Register.TokenPositionFetcher({ appId, groupId, network })
+export class PolygonKoyoPoolTokenFetcher implements PositionFetcher<AppTokenPosition> {
+  constructor(
+    @Inject(BalancerV2PoolTokensHelper) private readonly poolTokensHelper: BalancerV2PoolTokensHelper,
+    @Inject(BalancerV2TheGraphPoolTokenDataStrategy)
+    private readonly theGraphPoolTokenDataStrategy: BalancerV2TheGraphPoolTokenDataStrategy,
+  ) {}
+
+  getPositions() {
+    return this.poolTokensHelper.getTokenMarketData({
+      network,
+      appId,
+      groupId,
+      vaultAddress: '0xACf8489ccb47DA2D7306d827bbEDe05bFA6fea1b',
+      resolvePoolTokenAddresses: this.theGraphPoolTokenDataStrategy.build({
+        subgraphUrl: 'https://api.thegraph.com/subgraphs/name/koyo-finance/exchange-subgraph-matic',
+      }),
+    });
+  }
+}