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fix mint function

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This commit is contained in:
cryptoDev222 2021-08-09 13:30:38 -05:00
parent ab29b12a4e
commit 1ae2a5c9e5
1 changed files with 31 additions and 24 deletions
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55
contracts/mainnet/connectors/uniswapV3/helpers.sol
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@ -21,13 +21,24 @@ abstract contract Helpers is DSMath, Basic {
ISwapRouter(0xE592427A0AEce92De3Edee1F18E0157C05861564); ISwapRouter(0xE592427A0AEce92De3Edee1F18E0157C05861564);
struct MintParams { struct MintParams {
address tokenA; address token0;
address tokenB; address token1;
uint24 fee; uint24 fee;
int24 tickLower; int24 tickLower;
int24 tickUpper; int24 tickUpper;
uint256 amtA; uint256 amt1;
uint256 unitAmt; uint256 unitAmt;
uint slippage;
}
function getMinAmount(
TokenInterface token,
uint amt,
uint slippage
) internal view returns(uint minAmt) {
uint _amt18 = convertTo18(token.decimals(), amt);
minAmt = wmul(_amt18, sub(WAD, slippage));
minAmt = convert18ToDec(token.decimals(), minAmt);
} }
/** /**
@ -42,29 +53,25 @@ abstract contract Helpers is DSMath, Basic {
uint256 amount1 uint256 amount1
) )
{ {
(TokenInterface _tokenA, TokenInterface _tokenB) = changeEthAddress( (TokenInterface _token0, TokenInterface _token1) = changeEthAddress(
params.tokenA, params.token0,
params.tokenB params.token1
); );
uint256 _amount0 = params.amtA == uint256(-1) uint256 _amount1 = params.amt1 == uint256(-1)
? getTokenBal(TokenInterface(params.tokenA)) ? getTokenBal(TokenInterface(params.token1))
: params.amtA; : params.amt1;
uint256 _amount1 = convert18ToDec( uint256 _amount0 = convert18ToDec(
_tokenB.decimals(), _token1.decimals(),
wmul(params.unitAmt, convertTo18(_tokenA.decimals(), _amount0)) wmul(params.unitAmt, convertTo18(_token1.decimals(), _amount1))
); );
TransferHelper.safeApprove( _token0.approve(address(nftManager), _amount0);
params.tokenA, _token1.approve(address(nftManager), _amount1);
address(nftManager),
_amount0 uint _minAmt0 = getMinAmount(_token0, _amount0, params.slippage);
); uint _minAmt1 = getMinAmount(_token1, _amount1, params.slippage);
TransferHelper.safeApprove(
params.tokenB,
address(nftManager),
_amount1
);
INonfungiblePositionManager.MintParams INonfungiblePositionManager.MintParams
memory params = INonfungiblePositionManager.MintParams( memory params = INonfungiblePositionManager.MintParams(
params.tokenA, params.tokenA,
@ -74,8 +81,8 @@ abstract contract Helpers is DSMath, Basic {
params.tickUpper, params.tickUpper,
_amount0, _amount0,
_amount1, _amount1,
0, _minAmt0,
0, _minAmt1,
address(this), address(this),
block.timestamp block.timestamp
); );