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compound events integration

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This commit is contained in:
Samyak Jain 2019-05-31 19:13:52 +05:30
parent af8a388c84
commit 0e514897ff
1 changed files with 61 additions and 12 deletions
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73
contracts/ProxyLogics/InstaCompound.sol
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@ -108,11 +108,34 @@ contract Helpers is DSMath {
cEthAdd = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5; cEthAdd = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;
} }
function getTokenAmt(CTokenInterface cToken, uint cTokenAmt) public returns(uint tokenAmt) {
uint exchangeRate = cToken.exchangeRateCurrent();
tokenAmt = wmul(exchangeRate, cTokenAmt);
}
function transferToken(address erc20) internal {
if (erc20 == getAddressETH()) {
msg.sender.transfer(address(this).balance);
} else {
ERC20Interface erc20Contract = ERC20Interface(erc20);
uint srcBal = erc20Contract.balanceOf(address(this));
if (srcBal > 0) {
erc20Contract.transfer(msg.sender, srcBal);
}
}
}
} }
contract CompoundResolver is Helpers { contract CompoundResolver is Helpers {
event LogMint(address erc20, address cErc20, uint tokenAmt, address owner);
event LogRedeem(address erc20, address cErc20, uint tokenAmt, address owner);
event LogBorrow(address erc20, address cErc20, uint tokenAmt, address owner);
event LogRepay(address erc20, address cErc20, uint tokenAmt, address owner);
event LogRepayBehalf(address erc20, address cErc20, uint tokenAmt, address owner, address borrower);
function enterMarkets(address[] calldata cTokensAdd) external returns (uint[] memory isSuccess) { function enterMarkets(address[] calldata cTokensAdd) external returns (uint[] memory isSuccess) {
isSuccess = ComptrollerInterface(getComptrollerAddress()).enterMarkets(cTokensAdd); isSuccess = ComptrollerInterface(getComptrollerAddress()).enterMarkets(cTokensAdd);
} }
@ -136,6 +159,12 @@ contract CompoundResolver is Helpers {
setApproval(token, toDeposit, cErc20); setApproval(token, toDeposit, cErc20);
assert(cToken.mint(toDeposit) == 0); assert(cToken.mint(toDeposit) == 0);
} }
emit LogMint(
erc20,
cErc20,
tokenAmt,
msg.sender
);
} }
function redeemCToken(address erc20, address cErc20, uint cTokenAmt) external { function redeemCToken(address erc20, address cErc20, uint cTokenAmt) external {
@ -147,6 +176,13 @@ contract CompoundResolver is Helpers {
setApproval(cToken, toBurn, cErc20); setApproval(cToken, toBurn, cErc20);
require(cToken.redeem(toBurn) == 0, "something went wrong"); require(cToken.redeem(toBurn) == 0, "something went wrong");
transferToken(erc20); transferToken(erc20);
uint tokenReturned = wmul(cToken.balanceOf(address(this)), cToken.exchangeRateCurrent());
emit LogRedeem(
erc20,
cErc20,
tokenReturned,
address(this)
);
} }
function redeemUnderlying(address erc20, address cErc20, uint tokenAmt) external { function redeemUnderlying(address erc20, address cErc20, uint tokenAmt) external {
@ -154,23 +190,23 @@ contract CompoundResolver is Helpers {
setApproval(cToken, 10**50, cErc20); setApproval(cToken, 10**50, cErc20);
require(cToken.redeemUnderlying(tokenAmt) == 0, "something went wrong"); require(cToken.redeemUnderlying(tokenAmt) == 0, "something went wrong");
transferToken(erc20); transferToken(erc20);
} emit LogRedeem(
erc20,
function transferToken(address erc20) internal { cErc20,
if (erc20 == getAddressETH()) { tokenAmt,
msg.sender.transfer(address(this).balance); address(this)
} else { );
ERC20Interface erc20Contract = ERC20Interface(erc20);
uint srcBal = erc20Contract.balanceOf(address(this));
if (srcBal > 0) {
erc20Contract.transfer(msg.sender, srcBal);
}
}
} }
function borrow(address erc20, address cErc20, uint tokenAmt) external { function borrow(address erc20, address cErc20, uint tokenAmt) external {
require(CTokenInterface(cErc20).borrow(tokenAmt) == 0, "got collateral?"); require(CTokenInterface(cErc20).borrow(tokenAmt) == 0, "got collateral?");
transferToken(erc20); transferToken(erc20);
emit LogBorrow(
erc20,
cErc20,
tokenAmt,
address(this)
);
} }
function repayToken(address erc20, address cErc20, uint tokenAmt) external payable { function repayToken(address erc20, address cErc20, uint tokenAmt) external payable {
@ -188,6 +224,12 @@ contract CompoundResolver is Helpers {
token.transferFrom(msg.sender, address(this), toRepay); token.transferFrom(msg.sender, address(this), toRepay);
require(cToken.repayBorrow(toRepay) == 0, "transfer approved?"); require(cToken.repayBorrow(toRepay) == 0, "transfer approved?");
} }
emit LogRepay(
erc20,
cErc20,
tokenAmt,
address(this)
);
} }
function repaytokenBehalf( function repaytokenBehalf(
@ -215,6 +257,13 @@ contract CompoundResolver is Helpers {
token.transferFrom(msg.sender, address(this), toRepay); token.transferFrom(msg.sender, address(this), toRepay);
require(cToken.repayBorrowBehalf(borrower, tokenAmt) == 0, "transfer approved?"); require(cToken.repayBorrowBehalf(borrower, tokenAmt) == 0, "transfer approved?");
} }
emit LogRepay(
erc20,
cErc20,
tokenAmt,
address(this),
borrower
);
} }
} }