const OTOKEN_ABI = [ { inputs: [], name: "totalSupply", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], stateMutability: "view", type: "function", }, { inputs: [], name: "totalBorrows", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], stateMutability: "view", type: "function", }, { inputs: [], name: "exchangeRateCurrent", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], stateMutability: "view", type: "function", }, { constant: true, inputs: [{ internalType: "address", name: "owner", type: "address" }], name: "balanceOf", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], payable: false, stateMutability: "view", type: "function", }, { constant: true, inputs: [{ internalType: "address", name: "account", type: "address" }], name: "borrowBalanceCurrent", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], payable: false, stateMutability: "view", type: "function", }, { inputs: [], name: "supplyRatePerBlock", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], stateMutability: "view", type: "function", }, { inputs: [], name: "borrowRatePerBlock", outputs: [{ internalType: "uint256", name: "", type: "uint256" }], stateMutability: "view", type: "function", }, ]; const UNITROLLER_ABI = [ { constant: true, inputs: [{ internalType: "address", name: "", type: "address" }], name: "markets", outputs: [ { internalType: "bool", name: "isListed", type: "bool" }, { internalType: "uint256", name: "collateralFactorMantissa", type: "uint256", }, { internalType: "bool", name: "isQied", type: "bool" }, ], payable: false, stateMutability: "view", type: "function", }, { inputs: [ { internalType: "address", name: "account", type: "address" }, { internalType: "contract IOToken", name: "oToken", type: "address", }, ], name: "checkMembership", outputs: [{ internalType: "bool", name: "", type: "bool" }], stateMutability: "view", type: "function", }, ]; const ORACLE_ABI = [ { inputs: [ { internalType: "contract IOToken", name: "oToken", type: "address", }, ], name: "getUnderlyingPrice", outputs: [{ internalType: "uint256", name: "price", type: "uint256" }], stateMutability: "view", type: "function", }, ]; const ERC20_ABI = [ { constant: true, inputs: [ { name: "_owner", type: "address", }, ], name: "balanceOf", outputs: [ { name: "balance", type: "uint256", }, ], payable: false, stateMutability: "view", type: "function", }, ]; const { multicallAddress, unitrollerAddress, oracleAddress, account, update, name, onLoad, markets, multicall, } = props; useEffect(() => { if (!multicallAddress || !unitrollerAddress || !update || !account) return ""; console.log(`${name}-update`); let _cTokensData = {}; let _loanToValue = null; let _underlyPrice = {}; let _liquidity = null; let _underlyingBalance = null; let _userMerberShip = null; let count = 0; let oTokensLength = Object.values(markets).length; const formatedData = (key) => { console.log(`${name}-${key}`, count); if (count < 5) return; count = 0; oTokensLength = Object.values(markets).length; let totalSupplyUsd = Big(0); let totalBorrowUsd = Big(0); let userTotalSupplyUsd = Big(0); let userTotalBorrowUsd = Big(0); let totalCollateralUsd = Big(0); const markets = {}; Object.values(_cTokensData).forEach((market) => { const underlyingPrice = _underlyPrice[market.address] || 1; const marketSupplyUsd = Big(market.totalSupply || 0).mul(underlyingPrice); const marketBorrowUsd = Big(market.totalBorrows || 0).mul( underlyingPrice ); totalSupplyUsd = totalSupplyUsd.plus(marketSupplyUsd); totalBorrowUsd = totalBorrowUsd.plus(marketBorrowUsd); userTotalSupplyUsd = userTotalSupplyUsd.plus( Big(market.userSupply).mul(underlyingPrice) ); userTotalBorrowUsd = userTotalBorrowUsd.plus( Big(market.userBorrow).mul(underlyingPrice) ); if (_userMerberShip[market.address]) { totalCollateralUsd = totalCollateralUsd.plus( Big(market.userSupply) .mul(underlyingPrice) .mul(_loanToValue[market.address]) .div(100) ); } const supplyApy = Big(market.supplyRatePerBlock) .mul(60 * 60 * 24) .plus(1) .pow(365) .minus(1) .mul(100); const borrowApy = Big(market.borrowRatePerBlock) .mul(60 * 60 * 24) .plus(1) .pow(365) .minus(1) .mul(100); markets[market.address] = { ...market, loanToValue: _loanToValue[market.address], liquidity: _liquidity[market.address], underlyingPrice: underlyingPrice, userUnderlyingBalance: _underlyingBalance[market.address], userMerberShip: _userMerberShip[market.address], supplyApy: supplyApy.toFixed(2) + "%", borrowApy: borrowApy.toFixed(2) + "%", dapp: name, }; }); onLoad({ markets, totalSupplyUsd: totalSupplyUsd.toString(), totalBorrowUsd: totalBorrowUsd.toString(), userTotalSupplyUsd: userTotalSupplyUsd.toString(), userTotalBorrowUsd: userTotalBorrowUsd.toString(), totalCollateralUsd: totalCollateralUsd.toString(), }); }; const getUnitrollerData = () => { const calls = []; const oTokens = Object.values(markets); oTokens.forEach((token) => { calls.push({ address: unitrollerAddress, name: "markets", params: [token.address], }); if (account) { calls.push({ address: unitrollerAddress, name: "checkMembership", params: [account, token.address], }); } }); multicall({ abi: UNITROLLER_ABI, calls, options: {}, multicallAddress, provider: Ethers.provider(), }) .then((res) => { _loanToValue = {}; _userMerberShip = {}; for (let i = 0, len = res.length; i < len; i++) { const index = Math.floor(i / (account ? 2 : 1)); const mod = i % (account ? 2 : 1); switch (mod) { case 0: _loanToValue[oTokens[index].address] = ethers.utils.formatUnits( res[i][1]._hex, 16 ); break; case 1: _userMerberShip[oTokens[index].address] = res[i][0]; break; default: } } count++; formatedData("getUnitrollerData"); }) .catch((err) => { console.log("error-getUnitrollerData", err); setTimeout(() => { getUnitrollerData(); }, 1000); }); }; const getUnderlyPrice = () => { if (!oracleAddress) return; const oTokens = Object.keys(markets); const calls = oTokens.map((token) => ({ address: oracleAddress, name: "getUnderlyingPrice", params: [token], })); multicall({ abi: ORACLE_ABI, calls, options: {}, multicallAddress, provider: Ethers.provider(), }) .then((res) => { _underlyPrice = {}; for (let i = 0, len = res.length; i < len; i++) { _underlyPrice[oTokens[i]] = ethers.utils.formatUnits( res[i][0]._hex, 36 - markets[oTokens[i]].underlyingToken.decimals ); } count++; formatedData("getUnderlyPrice"); }) .catch((err) => { console.log("error-getUnderlyPrice", err); }); }; const getOTokenLiquidity = () => { const assets = Object.values(markets); let nativeOToken = ""; const calls = assets .filter((market) => { if (market.underlyingToken.address === "native") nativeOToken = market.address; return ( market.underlyingToken.address && market.underlyingToken.address !== "native" ); }) .map((market) => ({ address: market.underlyingToken.address, name: "balanceOf", params: [market.address], })); multicall({ abi: ERC20_ABI, calls, options: {}, multicallAddress, provider: Ethers.provider(), }) .then((res) => { _liquidity = {}; for (let i = 0, len = res.length; i < len; i++) { const oToken = markets[calls[i].params[0]]; _liquidity[oToken.address] = ethers.utils.formatUnits( res[i][0]._hex, oToken.underlyingToken.decimals ); } const provider = Ethers.provider(); if (nativeOToken) { provider.getBalance(nativeOToken).then((rawBalance) => { _liquidity[nativeOToken] = ethers.utils.formatUnits( rawBalance._hex, 18 ); count++; formatedData("getOTokenLiquidity"); }); } else { count++; formatedData("getOTokenLiquidity"); } }) .catch(() => { setTimeout(() => { getOTokenLiquidity(); }, 500); }); }; const getWalletBalance = () => { let nativeOToken = ""; const underlyingTokens = Object.values(markets) .filter((market) => { if (market.underlyingToken.address === "native") nativeOToken = market.address; return ( market.underlyingToken.address && market.underlyingToken.address !== "native" ); }) .map((market) => ({ ...market.underlyingToken, oTokenAddress: market.address, })); const calls = underlyingTokens.map((token) => ({ address: token.address, name: "balanceOf", params: [account], })); multicall({ abi: ERC20_ABI, calls, options: {}, multicallAddress, provider: Ethers.provider(), }) .then((res) => { _underlyingBalance = {}; for (let i = 0, len = res.length; i < len; i++) { _underlyingBalance[underlyingTokens[i].oTokenAddress] = res[i][0] ? ethers.utils.formatUnits( res[i][0]._hex, underlyingTokens[i].decimals ) : "0"; } if (nativeOToken) { const provider = Ethers.provider(); provider.getBalance(account).then((rawBalance) => { _underlyingBalance[nativeOToken] = ethers.utils.formatUnits( rawBalance._hex, 18 ); count++; formatedData("underlyingTokens"); }); } else { count++; formatedData("underlyingTokens"); } }) .catch(() => { setTimeout(() => { getWalletBalance(); }, 500); }); }; const getCTokenData = (oToken) => { if (oTokensLength === 0) return; const calls = [ { address: oToken.address, name: "exchangeRateCurrent", }, { address: oToken.address, name: "totalSupply", }, { address: oToken.address, name: "totalBorrows", }, { address: oToken.address, name: "balanceOf", params: [account], }, { address: oToken.address, name: "borrowBalanceCurrent", params: [account], }, { address: oToken.address, name: "borrowRatePerBlock", }, { address: oToken.address, name: "supplyRatePerBlock", }, ]; multicall({ abi: OTOKEN_ABI, calls, options: {}, multicallAddress, provider: Ethers.provider(), }) .then((res) => { oTokensLength--; const exchangeRateStored = res[0][0] ? ethers.utils.formatUnits( res[0][0]._hex, 10 + oToken.underlyingToken.decimals ) : "0"; const totalSupply = res[1][0] ? ethers.utils.formatUnits(res[1][0]._hex, oToken.decimals) : "0"; const userSupply = res[3][0] ? ethers.utils.formatUnits(res[3][0]._hex, oToken.decimals) : "0"; _cTokensData[oToken.address] = { ...oToken, exchangeRateStored, totalSupply: Big(totalSupply).mul(exchangeRateStored).toString(), totalBorrows: res[2][0] ? ethers.utils.formatUnits( res[2][0]._hex, oToken.underlyingToken.decimals ) : "0", supplyRatePerBlock: res[6][0] ? ethers.utils.formatUnits(res[6][0]._hex, 18) : "0", borrowRatePerBlock: res[5][0] ? ethers.utils.formatUnits(res[5][0]._hex, 18) : "0", userSupply: Big(userSupply).mul(exchangeRateStored).toString(), userBorrow: res[4][0] ? ethers.utils.formatUnits( res[4][0]._hex, oToken.underlyingToken.decimals ) : "0", }; if (oTokensLength === 0) { count++; formatedData("oTokens data"); } }) .catch((err) => { console.log("getCTokensData err", err); setTimeout(() => { getCTokenData(oToken); }, 1000); }); }; const getCTokensData = () => { Object.values(markets).forEach((market) => { getCTokenData(market); }); }; getUnitrollerData(); getUnderlyPrice(); getOTokenLiquidity(); getWalletBalance(); getCTokensData(); }, [update, account]);