Add gloop adapter

Author: timrolsh

src/adaptors/gloop/index.js

@@ -0,0 +1,128 @@
+const sdk = require('@defillama/sdk');
+const { ethers } = require('ethers');
+const axios = require('axios');
+const BigNumber = require('bignumber.js');
+
+const utils = require('../utils');
+
+const abiLendingPool = require('./abi/abiLendingPool.json');
+const abiOracle = require('./abi/abiOracle.json');
+const abiGMIncentives = require('./abi/abiGMIncentives.json');
+const abiInterestRateModel = require('./abi/abiInterestRateModel.json');
+const abiUniswapV3Pool = require('./abi/abiUniswapV3Pool.json');
+const abiGMI = require('./abi/abiGMI.json');
+
+const { getGloopPrice } = require('./getGloopPrice');
+const { getSupplyAPY } = require('./getSupplyAPY');
+const { getRewardAPY } = require('./getRewardAPY');
+
+// Contract addresses on Arbitrum
+const {ADDRESSES, CHAIN} = require('./Constants');
+
+/**
+ * Main function to fetch pool data
+ */
+const apy = async () => {
+  try {
+    // Fetch total underlying USDC in the lending pool
+    const totalUnderlyingResult = await sdk.api.abi.call({
+      target: ADDRESSES.LENDING_POOL,
+      abi: abiLendingPool.find((m) => m.name === 'totalUnderlying'),
+      params: [ADDRESSES.USDC],
+      chain: CHAIN,
+    });
+
+    const totalUnderlying = BigInt(totalUnderlyingResult.output);
+
+    // Fetch total borrows
+    const totalBorrowsResult = await sdk.api.abi.call({
+      target: ADDRESSES.LENDING_POOL,
+      abi: abiLendingPool.find((m) => m.name === 'totalBorrows'),
+      params: [ADDRESSES.USDC],
+      chain: CHAIN,
+    });
+
+    const totalBorrows = BigInt(totalBorrowsResult.output);
+
+    // Fetch available liquidity
+    const availableLiquidityResult = await sdk.api.abi.call({
+      target: ADDRESSES.LENDING_POOL,
+      abi: abiLendingPool.find((m) => m.name === 'availableLiquidity'),
+      params: [ADDRESSES.USDC],
+      chain: CHAIN,
+    });
+
+    const availableLiquidity = BigInt(availableLiquidityResult.output);
+
+    // Get USDC price (should be ~$1, but fetch from oracle to be accurate)
+    const usdcPriceResult = await sdk.api.abi.call({
+      target: ADDRESSES.ORACLE,
+      abi: abiOracle.find((m) => m.name === 'getUnderlyingPrice'),
+      params: [ADDRESSES.USDC],
+      chain: CHAIN,
+    });
+
+    // Oracle returns price in 1e18 format, convert to decimal
+    const usdcPrice = Number(BigInt(usdcPriceResult.output)) / 1e18;
+
+    // Calculate TVL in USD
+    // For lending protocols: tvlUsd = totalSupplyUsd - totalBorrowUsd
+    // totalSupplyUsd = totalUnderlying * price
+    // totalBorrowUsd = totalBorrows * price
+    const totalUnderlyingDecimal = Number(totalUnderlying) / 1e6; // USDC has 6 decimals
+    const totalBorrowsDecimal = Number(totalBorrows) / 1e6;
+
+    const totalSupplyUsd = totalUnderlyingDecimal * usdcPrice;
+    const totalBorrowUsd = totalBorrowsDecimal * usdcPrice;
+    const tvlUsd = totalSupplyUsd - totalBorrowUsd;
+
+    // Get GLOOP price
+    const gloopPrice = await getGloopPrice();
+
+    // Calculate supply APY
+    const apyBase = await getSupplyAPY(
+      availableLiquidity.toString(),
+      totalBorrows.toString()
+    );
+
+    // Calculate reward APY
+    const apyReward = await getRewardAPY(gloopPrice, totalUnderlyingDecimal);
+
+    // Create pool identifier
+    const poolIdentifier = `${ADDRESSES.RECEIVED_TOKEN}-${CHAIN}`.toLowerCase();
+
+    const pool = {
+      pool: poolIdentifier,
+      chain: utils.formatChain(CHAIN),
+      project: 'gloop',
+      symbol: 'USDC',
+      tvlUsd: tvlUsd,
+      apyBase: apyBase,
+      apyReward: apyReward > 0 ? apyReward : null,
+      rewardTokens: apyReward > 0 ? [ADDRESSES.GLOOP] : null,
+      underlyingTokens: [ADDRESSES.USDC],
+      poolMeta: 'V1 market',
+      url: 'https://gloop.finance/',
+      // Lending protocol specific fields
+      totalSupplyUsd: totalSupplyUsd,
+      totalBorrowUsd: totalBorrowUsd,
+    };
+
+    return [pool];
+  } catch (error) {
+    console.error('Error in Gloop adapter:', error);
+    return [];
+  }
+};
+
+module.exports = {
+  timetravel: false,
+  apy,
+  url: 'https://app.gloop.finance/loop',
+};
+
+// async function main() {
+//   console.log(await apy());
+// }
+
+// main()