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splitSwap fee implemented

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This commit is contained in:
Samyak Jain 2019-06-26 22:25:22 +05:30
parent 00f5ea98c5
commit 86070cce39
1 changed files with 14 additions and 4 deletions
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18
contracts/ProxyLogics/SplitSwap/SplitSwap.sol
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@ -100,6 +100,7 @@ contract Helper is DSMath {
address public admin = 0xa7615CD307F323172331865181DC8b80a2834324;
uint public maxSplitAmtEth = 50000000000000000000;
uint public maxSplitAmtDai = 20000000000000000000000;
uint public cut = 997500000000000000; // 0.25% charge
function setAllowance(TokenInterface _token, address _spender) internal {
if (_token.allowance(address(this), _spender) != uint(-1)) {
@ -140,9 +141,13 @@ contract AdminStuffs is Helper {
contract SplitHelper is Helper {
function getBest(address src, address dest, uint srcAmt) public view returns (uint bestExchange, uint destAmt) {
uint eth2DaiPrice = getRateEth2Dai(src, dest, srcAmt);
uint kyberPrice = getRateKyber(src, dest, srcAmt);
uint uniswapPrice = getRateUniswap(src, dest, srcAmt);
uint finalSrcAmt = srcAmt;
if (src == daiAddr) {
finalSrcAmt = wmul(srcAmt, cut);
}
uint eth2DaiPrice = getRateEth2Dai(src, dest, finalSrcAmt);
uint kyberPrice = getRateKyber(src, dest, finalSrcAmt);
uint uniswapPrice = getRateUniswap(src, dest, finalSrcAmt);
if (eth2DaiPrice > kyberPrice && eth2DaiPrice > uniswapPrice) {
destAmt = eth2DaiPrice;
bestExchange = 0;
@ -153,6 +158,9 @@ contract SplitHelper is Helper {
destAmt = uniswapPrice;
bestExchange = 2;
}
if (dest == daiAddr) {
destAmt = wmul(destAmt, cut);
}
require(destAmt != 0, "Dest Amt = 0");
}
@ -283,6 +291,7 @@ contract SplitSwap is SplitResolver {
function ethToDaiSwap(uint splitAmt, uint slippageAmt) public payable returns (uint destAmt) { // srcAmt = msg.value
require(maxSplitAmtEth >= splitAmt, "split amt > max");
destAmt = ethToDaiLoop(msg.value, splitAmt, 0);
destAmt = wmul(destAmt, cut);
require(destAmt > slippageAmt, "Dest Amt < slippage");
require(TokenInterface(daiAddr).transfer(msg.sender, destAmt), "Not enough DAI to transfer");
}
@ -290,7 +299,8 @@ contract SplitSwap is SplitResolver {
function daiToEthSwap(uint srcAmt, uint splitAmt, uint slippageAmt) public payable returns (uint destAmt) {
require(maxSplitAmtDai >= splitAmt, "split amt > max");
require(TokenInterface(daiAddr).transferFrom(msg.sender, address(this), srcAmt), "Token Approved?");
destAmt = daiToEthLoop(srcAmt, splitAmt, 0);
uint finalSrcAmt = wmul(srcAmt, cut);
destAmt = daiToEthLoop(finalSrcAmt, splitAmt, 0);
require(destAmt > slippageAmt, "Dest Amt < slippage");
msg.sender.transfer(destAmt);
}