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added paybackAndWithdraw function

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This commit is contained in:
Thrilok Kumar 2021-01-09 02:43:46 +05:30
parent ec81b332b6
commit 2e11ab3737
1 changed files with 97 additions and 0 deletions
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97
contracts/connectors/makerdao.sol
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@ -633,6 +633,7 @@ contract BasicExtraResolver is BasicResolver {
TokenJoinInterface tokenJoinContract;
VatLike vatContract;
TokenInterface tokenContract;
DaiJoinInterface daiJoinContract;
}
/**
* @dev Deposit ETH/ERC20_Token Collateral and Borrow DAI.
@ -710,6 +711,102 @@ contract BasicExtraResolver is BasicResolver {
emit LogBorrow(makerData._vault, ilk, _amtBorrow, getIdBorrow, setIdBorrow);
}
/**
* @dev Deposit ETH/ERC20_Token Collateral and Borrow DAI.
* @param vault Vault ID.
* @param paybackAmt token deposit amount to Withdraw.
* @param withdrawAmt token borrow amount to Withdraw.
* @param getIdPayback Get deposit token amount at this ID from `InstaMemory` Contract.
* @param getIdWithdraw Get borrow token amount at this ID from `InstaMemory` Contract.
* @param setIdPayback Set deposit token amount at this ID in `InstaMemory` Contract.
* @param setIdWithdraw Set borrow token amount at this ID in `InstaMemory` Contract.
*/
function paybackAndWithdraw(
uint vault,
uint paybackAmt,
uint withdrawAmt,
uint getIdPayback,
uint getIdWithdraw,
uint setIdPayback,
uint setIdWithdraw
) external payable
{
ManagerLike managerContract = ManagerLike(getMcdManager());
MakerData memory makerData;
uint _amtPayback = getUint(setIdPayback, paybackAmt);
uint _amtWithdraw = getUint(getIdWithdraw, withdrawAmt);
makerData._vault = getVault(managerContract, vault);
(bytes32 ilk, address urn) = getVaultData(managerContract, makerData._vault);
makerData.colAddr = InstaMapping(getMappingAddr()).gemJoinMapping(ilk);
makerData.tokenJoinContract = TokenJoinInterface(makerData.colAddr);
makerData.vatContract = VatLike(managerContract.vat());
makerData.daiJoin = getMcdDaiJoin();
makerData.tokenContract = makerData.tokenJoinContract.gem();
uint _amt18Withdraw;
if (_amtWithdraw == uint(-1)) {
(_amt18Withdraw,) = makerData.vatContract.urns(ilk, urn);
_amtWithdraw = convert18ToDec(makerData.tokenJoinContract.dec(), _amt18Withdraw);
} else {
_amt18Withdraw = convertTo18(makerData.tokenJoinContract.dec(), _amtWithdraw);
}
int _amtPaybackDart;
{
(, uint art) = makerData.vatContract.urns(ilk, urn);
uint _maxDebt = _getVaultDebt(address(makerData.vatContract), ilk, urn);
_amtPaybackDart = _amtPayback == uint(-1) ?
-int(art) :
_getWipeAmt(
address(makerData.vatContract),
makerData.vatContract.dai(urn),
urn,
ilk
);
_amtPayback = _amtPayback == uint(-1) ? _maxDebt : _amtPayback;
require(_maxDebt >= _amtPayback, "paying-excess-debt");
}
makerData.daiJoinContract = DaiJoinInterface(makerData.daiJoin);
makerData.daiJoinContract.dai().approve(makerData.daiJoin, _amtPayback);
makerData.daiJoinContract.join(urn, _amtPayback);
managerContract.frob(
makerData._vault,
-toInt(_amt18Withdraw),
_amtPaybackDart
);
managerContract.flux(
makerData._vault,
address(this),
_amt18Withdraw
);
if (isEth(address(makerData.tokenContract))) {
makerData.tokenJoinContract.exit(address(this), _amt18Withdraw);
makerData.tokenContract.withdraw(_amt18Withdraw);
} else {
makerData.tokenJoinContract.exit(address(this), _amtWithdraw);
}
setUint(setIdPayback, _amtPayback);
setUint(setIdWithdraw, _amtWithdraw);
emit LogPayback(makerData._vault, ilk, _amtPayback, getIdPayback, setIdPayback);
emit LogBorrow(makerData._vault, ilk, _amtWithdraw, getIdWithdraw, setIdWithdraw);
}
/**
* @dev Exit DAI from urn.
* @param vault Vault ID.