Instadapp/yield-contract
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Merge branch 'logics' of https://github.com/InstaDApp/yield-contract into logics

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Thrilok Kumar 2020-09-24 17:48:44 +05:30
commit ae78b9df99
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58
contracts/logics/settle/eth/maxComp.sol
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@ -2,23 +2,79 @@
pragma solidity ^0.6.8;
pragma experimental ABIEncoderV2;
import { DSMath } from "../../../libs/safeMath.sol";
import { DSMath } from "../../libs/safeMath.sol";
interface CTokenInterface {
function borrowBalanceCurrent(address account) external returns (uint256);
function exchangeRateCurrent() external returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function underlying() external view returns (address);
}
interface DSAInterface {
function cast(address[] calldata _targets, bytes[] calldata _datas, address _origin) external payable;
}
interface CompTroller {
function getAllMarkets() external view returns (address[] memory);
}
interface OracleComp {
function getUnderlyingPrice(address) external view returns (uint);
}
interface InstaMapping {
function cTokenMapping(address) external view returns (address);
}
contract LogicOne {
address public constant compTrollerAddr = address(0xe81F70Cc7C0D46e12d70efc60607F16bbD617E88);
address public constant cethAddr = address(0xe81F70Cc7C0D46e12d70efc60607F16bbD617E88);
address public constant cdaiAddr = address(0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643);
address public constant ethAddr = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
address public constant compOracleAddr = address(0xe81F70Cc7C0D46e12d70efc60607F16bbD617E88);
function getCompoundNetAssetsInEth(address _dsa) private returns (uint256 _netBal) {
uint totalSupplyInETH;
uint totalBorrowInETH;
address[] memory allMarkets = CompTroller(compTrollerAddr).getAllMarkets();
OracleComp priceFeedContract = OracleComp(compOracleAddr);
// uint ethPrice = oracleContract.getUnderlyingPrice(cethAddr);
for (uint i = 0; i < allMarkets.length; i++) {
CTokenInterface ctoken = CTokenInterface(allMarkets[i]);
uint tokenPriceInETH = priceFeedContract.getPrice(address(ctoken) == cethAddr ? ethAddr : ctoken.underlying());
uint supply = wmul(ctoken.balanceOf(_dsa), ctoken.exchangeRateCurrent());
uint supplyInETH = wmul(supply, tokenPriceInETH);
uint borrow = ctoken.borrowBalanceCurrent(_dsa);
uint borrowInETH = wmul(borrow, tokenPriceInETH);
totalSupplyInETH += add(totalSupplyInETH, supplyInETH);
totalBorrowInETH = add(totalBorrowInETH, borrowInETH);
if (allMarkets[i] != cdaiAddr && allMarkets[i] != cethAddr) {
require(supply == 0 && borrow == 0, "assets");
}
// require()
}
_netBal = sub(totalSupplyInETH, totalBorrowInETH);
}
function maxComp(address _dsa, address[] calldata _targets, bytes[] calldata _data) public {
// check if DSA is authorised for interaction
// Also think on dydx flash loan connector
// initial Compound position borrow and supply
address compoundConnector = address(0); // Check9898 - address of compound connector
address instaPoolConnector = address(0); // Check9898 - address of instaPool connector
for (uint i = 0; i < _targets.length; i++) {
require(_targets[i] == compoundConnector || _targets[i] == instaPoolConnector, "connector-not-authorised");
}
DSAInterface(_dsa).cast(_targets, _data, address(0)); // Check9898 - address of basic connector
// final Compound position borrow and supply
// check the chnages should only be in eth supply & dai
// check if status is safe and only have assets in the specific tokens
}