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buyAmt calculation method changed

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This commit is contained in:
Samyak Jain 2020-05-05 17:47:07 +10:00
parent a7dcefaa59
commit 373fb858ad
1 changed files with 14 additions and 9 deletions
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23
contracts/connectors/curve.sol
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@ -23,10 +23,10 @@ interface ICurve {
returns (uint256 out);
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
int128 sellTokenId,
int128 buyTokenId,
uint256 sellTokenAmt,
uint256 minBuyToken
) external;
function exchange_underlying(
@ -126,7 +126,14 @@ contract CurveProtocol is CurveHelpers {
event LogWithdrawLiquidityImbalance(uint256[4] amts, uint256 burnAmt, uint256[4] getId, uint256 setId);
event LogWithdrawLiquidityOneCoin(address receiveCoin, uint256 withdrawnAmt, uint256 curveAmt, uint256 getId, uint256 setId);
function exchange(address buyAddr, address sellAddr, uint256 sellAmt, uint256 unitAmt, uint getId, uint setId) external {
function sell(
address buyAddr,
address sellAddr,
uint sellAmt,
uint unitAmt,
uint getId,
uint setId
) external {
uint _sellAmt = getUint(getId, sellAmt);
ICurve curve = ICurve(getCurveSwapAddr());
TokenInterface _buyToken = TokenInterface(buyAddr);
@ -134,15 +141,13 @@ contract CurveProtocol is CurveHelpers {
_sellAmt = _sellAmt == uint(-1) ? _sellToken.balanceOf(address(this)) : _sellAmt;
_sellToken.approve(address(curve), _sellAmt);
uint initalBal = _buyToken.balanceOf(address(this));
uint _sellAmt18 = convertTo18(_sellToken.decimals(), _sellAmt);
uint _slippageAmt = convert18ToDec(_buyToken.decimals(), wmul(unitAmt, _sellAmt18));
uint _buyAmt = curve.get_dy_underlying(getTokenI(sellAddr), getTokenI(buyAddr), _sellAmt);
curve.exchange(getTokenI(sellAddr), getTokenI(buyAddr), _sellAmt, _slippageAmt);
uint finialBal = _buyToken.balanceOf(address(this));
uint256 _buyAmt = sub(finialBal, initalBal);
setUint(setId, _buyAmt);
emit LogSell(buyAddr, sellAddr, _buyAmt, _sellAmt, getId, setId);