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InstaMcdMigrate done.

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This commit is contained in:
Thrilok kumar 2019-10-23 00:32:10 +05:30
parent b12feeb9bf
commit 28479c78b6
1 changed files with 54 additions and 27 deletions
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81
contracts/ProxyLogics/MCD/InstaMcdMigrate.sol
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@ -113,16 +113,22 @@ contract DSMath {
contract Helpers is DSMath {
/**
* @dev get MakerDAO CDP engine
* @dev get MakerDAO SCD CDP engine
*/
function getSaiTubAddress() public pure returns (address sai) {
sai = 0x448a5065aeBB8E423F0896E6c5D525C040f59af3;
}
/**
* @dev get Sai (Dai v1) address
*/
function getSaiAddress() public pure returns (address sai) {
sai = 0x448a5065aeBB8E423F0896E6c5D525C040f59af3;
}
/**
* @dev get Dai (Dai v2) address
*/
function getDaiAddress() public pure returns (address dai) {
dai = 0x448a5065aeBB8E423F0896E6c5D525C040f59af3;
}
@ -135,7 +141,7 @@ contract Helpers is DSMath {
}
/**
* @dev get Compound OTC Address
* @dev get OTC Address
*/
function getOtcAddress() public pure returns (address otcAddr) {
otcAddr = 0x39755357759cE0d7f32dC8dC45414CCa409AE24e; // main
@ -148,13 +154,6 @@ contract Helpers is DSMath {
ume = 0x2C4Bd064b998838076fa341A83d007FC2FA50957;
}
/**
* @dev get uniswap DAI exchange
*/
function getUniswapDAIExchange() public pure returns (address ude) {
ude = 0x09cabEC1eAd1c0Ba254B09efb3EE13841712bE14;
}
/**
* @dev get uniswap factory
*/
@ -170,13 +169,13 @@ contract Helpers is DSMath {
}
/**
* @dev setting allowance to compound for the "user proxy" if required
* @dev setting allowance if required
*/
function setApproval(address erc20, uint srcAmt, address to) internal {
TokenInterface erc20Contract = TokenInterface(erc20);
uint tokenAllowance = erc20Contract.allowance(address(this), to);
if (srcAmt > tokenAllowance) {
erc20Contract.approve(to, 2**255);
erc20Contract.approve(to, uint(-1));
}
}
@ -185,7 +184,7 @@ contract Helpers is DSMath {
contract SCDResolver is Helpers {
function open() public returns (bytes32 cup) {
function open() internal returns (bytes32 cup) {
cup = TubInterface(getSaiTubAddress()).open();
}
@ -352,10 +351,33 @@ contract MCDResolver is MkrResolver {
}
contract MigrateResolver is MCDResolver {
contract LiquidityResolver is MCDResolver {
//Had to write seprate for pool, remix was showing error.
function getLiquidity(uint _wad) internal {
uint[] memory _wadArr = new uint[](1);
_wadArr[0] = _wad;
address[] memory addrArr = new address[](1);
addrArr[0] = address(0);
// Get liquidity assets to payback user wallet borrowed assets
PoolInterface(getPoolAddress()).accessToken(addrArr, _wadArr, false);
}
function paybackLiquidity(uint _wad) internal {
address[] memory addrArr = new address[](1);
addrArr[0] = address(0);
require(TokenInterface(getSaiAddress()).transfer(getPoolAddress(), _wad), "Not-enough-dai");
PoolInterface(getPoolAddress()).paybackToken(addrArr, false);
}
}
contract MigrateResolver is LiquidityResolver {
event LogMigrate(uint scdCdp, uint toConvert, address payFeeWith, uint mcdCdp);
function migrate(
bytes32 scdCup,
uint scdCDP,
// uint mcdCDP, for merge
uint toConvert,
address payFeeWith,
@ -363,8 +385,11 @@ contract MigrateResolver is MCDResolver {
) external payable returns (uint cdp)
{
TubInterface tub = TubInterface(getSaiTubAddress());
bytes32 scdCup = bytes32(scdCDP);
uint _jam = rmul(tub.ink(scdCup), tub.per());
uint _wad = tub.tab(scdCup);
if (toConvert < 10**18) {
uint initialPoolBal = sub(getPoolAddress().balance, 10000000000);
bytes32 splitCup = TubInterface(getSaiTubAddress()).open();
@ -372,22 +397,19 @@ contract MigrateResolver is MCDResolver {
_jam = wmul(_jam, toConvert);
_wad = wmul(_wad, toConvert);
uint[] memory _wadArr = new uint[](1);
_wadArr[0] = _wad;
address[] memory addrArr = new address[](1);
addrArr[0] = address(0);
// Get liquidity assets to payback user wallet borrowed assets
PoolInterface(getPoolAddress()).accessToken(addrArr, _wadArr, false);
//get liquidity from InstaDApp Pool.
getLiquidity(_wad);
(bytes32 val, bool ok) = tub.pep().peek();
if (ok && val != 0) {
// MKR required for wipe = Stability fees accrued in Dai / MKRUSD value
uint mkrFee = wdiv(rmul(_wad, rdiv(tub.rap(scdCup), tub.tab(scdCup))), uint(val));
swapToMkrUniswap(payFeeWith, mkrFee);
uint mkrFee = rdiv(tub.rap(scdCup), tub.tab(scdCup)); // I had to split because it was showing error in remix.
mkrFee = rmul(_wad, mkrFee);
mkrFee = wdiv(mkrFee, uint(val));
// swapToMkrUniswap(payFeeWith, mkrFee); //Uniswap
swapToMkrOtc(payFeeWith, mkrFee); //otc
}
wipe(scdCup, _wad);
@ -396,8 +418,8 @@ contract MigrateResolver is MCDResolver {
lock(splitCup, _jam);
draw(splitCup, _wad);
require(TokenInterface(getSaiAddress()).transfer(getPoolAddress(), _wad), "Not-enough-dai");
PoolInterface(getPoolAddress()).paybackToken(addrArr, false);
//transfer and payback liquidity to InstaDApp Pool.
paybackLiquidity(_wad);
uint finalPoolBal = getPoolAddress().balance;
assert(finalPoolBal >= initialPoolBal);
@ -406,6 +428,11 @@ contract MigrateResolver is MCDResolver {
} else {
cdp = migrateToMCD(scdMcdMigration, scdCup, payFeeWith);
}
TokenInterface weth = TokenInterface(getWETHAddress());
weth.withdraw(weth.balanceOf(address(this))); //withdraw WETH, if any leftover.
msg.sender.transfer(address(this).balance); //transfer leftover ETH.
emit LogMigrate(
uint(scdCup),
toConvert,