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Merge branch 'master' of https://github.com/Sowmayjain/InstaProxyContract

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Sowmayjain 2019-03-19 19:33:35 +05:30
commit dddab6ac87
1 changed files with 123 additions and 23 deletions
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146
contracts/ProxyLogics/uniswap.sol
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@ -85,44 +85,144 @@ contract Trade is Registry {
* srcAmtFixed - if Token to sell has fixed quantity then true else Token to sell should have fixed quantity to buy
* srcDestAmt - if srcAmtFixed is true then quantity will be of src token else quantity will be of dest token
*/
function getExpectedRateUniswap(address src, address dest, bool srcAmtFixed, uint srcDestAmt) external view returns (uint256) {
// function getExpectedRateUniswap(address src, address dest, bool srcAmtFixed, uint srcDestAmt) external view returns (uint256) {
// if (src == getAddress("eth")) {
// // define uniswap exchange with dest address
// UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(dest));
// if (srcAmtFixed) {
// return exchangeContract.getEthToTokenInputPrice(srcDestAmt);
// } else {
// return exchangeContract.getEthToTokenOutputPrice(srcDestAmt);
// }
// } else if (dest == getAddress("eth")) {
// // define uniswap exchange with src address
// UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(src));
// if (srcAmtFixed) {
// return exchangeContract.getTokenToEthInputPrice(srcDestAmt);
// } else {
// return exchangeContract.getTokenToEthOutputPrice(srcDestAmt);
// }
// } else {
// UniswapExchange exchangeContractSrc = UniswapExchange(_getExchangeAddress(src));
// UniswapExchange exchangeContractDest = UniswapExchange(_getExchangeAddress(dest));
// if (srcAmtFixed) {
// uint ethQty = exchangeContractSrc.getTokenToEthInputPrice(srcDestAmt);
// return exchangeContractDest.getEthToTokenInputPrice(ethQty);
// } else {
// uint ethQty = exchangeContractDest.getTokenToEthInputPrice(srcDestAmt);
// return exchangeContractSrc.getEthToTokenInputPrice(ethQty);
// }
// }
// }
function getExpectedRateSrcUniswap(address src, address dest, uint srcDestAmt) external view returns (uint256) {
if (src == getAddress("eth")) {
// define uniswap exchange with dest address
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(dest));
if (srcAmtFixed) {
return exchangeContract.getEthToTokenInputPrice(srcDestAmt);
} else {
return exchangeContract.getEthToTokenOutputPrice(srcDestAmt);
}
return exchangeContract.getEthToTokenInputPrice(srcDestAmt);
} else if (dest == getAddress("eth")) {
// define uniswap exchange with src address
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(src));
if (srcAmtFixed) {
return exchangeContract.getTokenToEthInputPrice(srcDestAmt);
} else {
return exchangeContract.getTokenToEthOutputPrice(srcDestAmt);
}
return exchangeContract.getTokenToEthInputPrice(srcDestAmt);
} else {
UniswapExchange exchangeContractSrc = UniswapExchange(_getExchangeAddress(src));
UniswapExchange exchangeContractDest = UniswapExchange(_getExchangeAddress(dest));
if (srcAmtFixed) {
uint ethQty = exchangeContractSrc.getTokenToEthInputPrice(srcDestAmt);
return exchangeContractDest.getEthToTokenInputPrice(ethQty);
} else {
uint ethQty = exchangeContractDest.getTokenToEthInputPrice(srcDestAmt);
return exchangeContractSrc.getEthToTokenInputPrice(ethQty);
}
uint ethQty = exchangeContractSrc.getTokenToEthInputPrice(srcDestAmt);
return exchangeContractDest.getEthToTokenInputPrice(ethQty);
}
}
function tradeUniswap(
function getExpectedRateDestUniswap(address src, address dest, uint srcDestAmt) external view returns (uint256) {
address eth = getAddress("eth");
if (src == eth) {
// define uniswap exchange with dest address
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(dest));
return exchangeContract.getEthToTokenOutputPrice(srcDestAmt);
} else if (dest == eth) {
// define uniswap exchange with src address
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(src));
return exchangeContract.getTokenToEthOutputPrice(srcDestAmt);
} else {
UniswapExchange exchangeContractSrc = UniswapExchange(_getExchangeAddress(src));
UniswapExchange exchangeContractDest = UniswapExchange(_getExchangeAddress(dest));
uint ethQty = exchangeContractDest.getTokenToEthInputPrice(srcDestAmt);
return exchangeContractSrc.getEthToTokenInputPrice(ethQty);
}
}
// function tradeUniswap(
// address src, // token to sell
// address dest, // token to buy
// uint srcAmt, // amount of token for sell
// uint destAmt, // amount of token to buy
// bool srcAmtFixed, // if true src has fixed qty else dest has fixed qty
// uint srcDestAmt,
// uint minSlippage // % slippage of other token than the fixed one
// ) public payable returns (uint) {
// if (src == getAddress("eth")) {
// UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(dest));
// // function ethToTokenSwapInput(uint256 min_tokens, uint256 deadline) external payable returns (uint256 tokens_bought);
// if (srcAmtFixed) {
// } else {
// }
// return exchangeContract.ethToTokenSwapInput()
// } else if (dest == getAddress("eth")) {
// UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(src));
// } else {
// }
// }
function tradeSrcUniswap(
address src, // token to sell
address dest, // token to buy
uint srcAmt, // amount of token for sell
uint destAmt, // amount of token to buy
bool srcAmtFixed, // if true src has fixed qty else dest has fixed qty
uint minSlippage // % slippage of other token than the fixed one
uint minDestAmt, // min dest token amount (slippage)
uint deadline // time for this transaction to be valid
) public payable returns (uint) {
address eth = getAddress("eth");
address user = msg.sender;
uint ethQty = getToken(
user,
src,
srcAmt,
eth
);
if (src == eth) {
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(dest));
uint tokensBought = exchangeContract.ethToTokenSwapInput.value(ethQty)(minDestAmt, deadline);
return tokensBought;
} else if (dest == eth) {
UniswapExchange exchangeContract = UniswapExchange(_getExchangeAddress(src));
uint ethBought = exchangeContract.tokenToEthSwapInput(srcAmt, minDestAmt, deadline);
return ethBought;
} else {
}
}
function getToken(
address trader,
address src,
uint srcAmt,
address eth
)
internal
returns (uint ethQty)
{
if (src == eth) {
require(msg.value == srcAmt, "Invalid Operation");
ethQty = srcAmt;
} else {
IERC20 tokenFunctions = IERC20(src);
tokenFunctions.transferFrom(trader, address(this), srcAmt);
ethQty = 0;
}
}
}