Create aaveV3.ts

src/util/calculators/aaveV3.ts

@@ -0,0 +1,74 @@
+import util from '../blockchainUtil';
+import formatter from '../formatter';
+import POOL_DATA_PROVIDER_V3_ABI from '../../constants/abi/poolDataProviderV3Abi.json';
+import AAVE_ERC20_ABI from '../../constants/abi/aaveErc20Abi.json';
+import Web3 from 'web3';
+import { IBalances } from '../../interfaces/ITvl';
+
+async function getAddresses(poolDataProviderV3, block, chain, web3) {
+  const aaveTokenMarketData = await util.executeCall(
+    poolDataProviderV3,
+    POOL_DATA_PROVIDER_V3_ABI,
+    'getAllATokens',
+    [],
+    block,
+    chain,
+    web3,
+  );
+
+  const aaveTokenAddresses = [];
+  aaveTokenMarketData.map((aaveTokensData) => {
+    if (aaveTokensData) {
+      aaveTokenAddresses.push(
+        typeof aaveTokensData == 'string'
+          ? aaveTokensData.substring(aaveTokensData.indexOf(',') + 1)
+          : aaveTokensData.tokenAddress,
+      );
+    }
+  });
+
+  const underlyingAddressesData = await util.executeCallOfMultiTargets(
+    aaveTokenAddresses,
+    AAVE_ERC20_ABI,
+    'UNDERLYING_ASSET_ADDRESS',
+    [],
+    block,
+    chain,
+    web3,
+  );
+
+  const reserveTokenAddresses = underlyingAddressesData.map(
+    (reserveData) => reserveData,
+  );
+
+  return [aaveTokenAddresses, reserveTokenAddresses];
+}
+
+async function getTvl(
+  poolDataProvider: string,
+  block: number,
+  chain: string,
+  web3: Web3,
+): Promise<IBalances> {
+  const balances = {};
+
+  const [aaveTokens, reserveTokens] = await getAddresses(
+    poolDataProvider,
+    block,
+    chain,
+    web3,
+  );
+
+  const balanceResults = await util.getTokenBalancesOfHolders(
+    aaveTokens,
+    reserveTokens,
+    block,
+    chain,
+    web3,
+  );
+
+  formatter.sumMultiBalanceOf(balances, balanceResults);
+  return balances;
+}
+
+export default { getTvl };