feat(teahouse): Add token-fetcher for Teahouse Vaults on Ethereum and…

… Optimism (#2455)

* feature (teahouse): add token-fetcher for Teahouse Vaults on Ethereum and Optimism

* feat(teahouse):Add token-fetcher for Teahouse Vaults on Ethereum and Optimism

---------

Co-authored-by: William Poulin <[email protected]>

src/apps/teahouse/contracts/ethers/index.ts

@@ -1,6 +1,6 @@
 /* Autogenerated file. Do not edit manually. */
 /* tslint:disable */
 /* eslint-disable */
-export type { TeahouseVault } from './TeahouseVault';
+export type { TeahouseVault} from './TeahouseVault';
 export * as factories from './factories';
 export { TeahouseVault__factory } from './factories/TeahouseVault__factory';

src/apps/teahouse/ethereum/teahouse.vaults.token-fetcher.ts

@@ -0,0 +1,58 @@
+import { Inject } from '@nestjs/common';
+
+import { APP_TOOLKIT, IAppToolkit } from '~app-toolkit/app-toolkit.interface';
+import { PositionTemplate } from '~app-toolkit/decorators/position-template.decorator';
+import { AppTokenTemplatePositionFetcher } from '~position/template/app-token.template.position-fetcher';
+import { GetUnderlyingTokensParams } from '~position/template/app-token.template.types';
+
+import { TeahouseVault, TeahouseContractFactory } from '../contracts';
+
+@PositionTemplate()
+export class EthereumTeahouseVaultsTokenFetcher extends AppTokenTemplatePositionFetcher<TeahouseVault> {
+  groupLabel = 'Vault share';
+
+  constructor(
+    @Inject(APP_TOOLKIT) protected readonly appToolkit: IAppToolkit,
+    @Inject(TeahouseContractFactory) protected readonly contractFactory: TeahouseContractFactory,
+  ) {
+    super(appToolkit);
+  }
+
+  getContract(address: string) {
+    return this.contractFactory.teahouseVault({ network: this.network, address });
+  }
+
+  async getAddresses() {
+    return [
+      '0xe1b3c128c0d0a9e41ab3ff8f0984e5d5bef81677',
+      '0xb54e2764bef6994245527f75eb8f180c484c404d',
+      '0x478afa95f40bf5504cff32796c20bfd0b4e38330',
+      '0x9ed9c1c0f1c68666668a7aedec5fec95abc7f943',
+    ];
+  }
+
+  async getUnderlyingTokenDefinitions({ contract }: GetUnderlyingTokensParams<TeahouseVault>) {
+    return [{ address: await contract.asset(), network: this.network }];
+  }
+
+  async getPricePerShare({ contract }) {
+    const assetAddress = await contract.asset();
+    const assetContract = this.getContract(assetAddress);
+    const assetDecimals = await assetContract.decimals();
+    const shareDecimals = await contract.decimals();
+    const globalState = await contract.globalState();
+    const currentIndex = globalState[2];
+    const enterNextCycleEventFilter = await contract.filters.EnterNextCycle(null, currentIndex - 1);
+    const enterNextCycleEvent = await contract.queryFilter(enterNextCycleEventFilter, null, null);
+    const priceNumerator = enterNextCycleEvent[0].args.priceNumerator;
+    const priceDenominator = enterNextCycleEvent[0].args.priceDenominator;
+    const pricePerShare =
+      priceNumerator
+        .mul('1' + '0'.repeat(shareDecimals))
+        .mul(100000000)
+        .div(priceDenominator)
+        .div('1' + '0'.repeat(assetDecimals))
+        .toNumber() / 100000000;
+    return [pricePerShare];
+  }
+}

src/apps/teahouse/optimism/teahouse.vaults.token-fetcher.ts

@@ -0,0 +1,53 @@
+import { Inject } from '@nestjs/common';
+
+import { APP_TOOLKIT, IAppToolkit } from '~app-toolkit/app-toolkit.interface';
+import { PositionTemplate } from '~app-toolkit/decorators/position-template.decorator';
+import { AppTokenTemplatePositionFetcher } from '~position/template/app-token.template.position-fetcher';
+import { GetUnderlyingTokensParams } from '~position/template/app-token.template.types';
+
+import { TeahouseVault, TeahouseContractFactory } from '../contracts';
+
+@PositionTemplate()
+export class OptimismTeahouseVaultsTokenFetcher extends AppTokenTemplatePositionFetcher<TeahouseVault> {
+  groupLabel = 'Vault share';
+
+  constructor(
+    @Inject(APP_TOOLKIT) protected readonly appToolkit: IAppToolkit,
+    @Inject(TeahouseContractFactory) protected readonly contractFactory: TeahouseContractFactory,
+  ) {
+    super(appToolkit);
+  }
+
+  getContract(address: string) {
+    return this.contractFactory.teahouseVault({ network: this.network, address });
+  }
+
+  async getAddresses() {
+    return ['0x9ae039f9de94542f6f1b3fba60223e6aa4f411af', '0xee1e02609a480bdc9d9651c200d90222b6691f03'];
+  }
+
+  async getUnderlyingTokenDefinitions({ contract }: GetUnderlyingTokensParams<TeahouseVault>) {
+    return [{ address: await contract.asset(), network: this.network }];
+  }
+
+  async getPricePerShare({ contract }) {
+    const assetAddress = await contract.asset();
+    const assetContract = this.getContract(assetAddress);
+    const assetDecimals = await assetContract.decimals();
+    const shareDecimals = await contract.decimals();
+    const globalState = await contract.globalState();
+    const currentIndex = globalState[2];
+    const enterNextCycleEventFilter = await contract.filters.EnterNextCycle(null, currentIndex - 1);
+    const enterNextCycleEvent = await contract.queryFilter(enterNextCycleEventFilter, null, null);
+    const priceNumerator = enterNextCycleEvent[0].args.priceNumerator;
+    const priceDenominator = enterNextCycleEvent[0].args.priceDenominator;
+    const pricePerShare =
+      priceNumerator
+        .mul('1' + '0'.repeat(shareDecimals))
+        .mul(100000000)
+        .div(priceDenominator)
+        .div('1' + '0'.repeat(assetDecimals))
+        .toNumber() / 100000000;
+    return [pricePerShare];
+  }
+}

src/apps/teahouse/teahouse.module.ts

@@ -3,12 +3,10 @@ import { Module } from '@nestjs/common';
 import { AbstractApp } from '~app/app.dynamic-module';
 
 import { TeahouseContractFactory } from './contracts';
-import { OptimismTeahouseVaultsContractPositionFetcher } from './optimism/teahouse.vaults.contract-position-fetcher';
+import { EthereumTeahouseVaultsTokenFetcher } from './ethereum/teahouse.vaults.token-fetcher';
+import { OptimismTeahouseVaultsTokenFetcher } from './optimism/teahouse.vaults.token-fetcher';
 
 @Module({
-    providers: [
-        TeahouseContractFactory,
-        OptimismTeahouseVaultsContractPositionFetcher,
-    ],
+  providers: [TeahouseContractFactory, EthereumTeahouseVaultsTokenFetcher, OptimismTeahouseVaultsTokenFetcher],
 })
-export class TeahouseAppModule extends AbstractApp() { }
+export class TeahouseAppModule extends AbstractApp() {}