From 672952a858b24bee47b075bf936d19fc8b3beabc Mon Sep 17 00:00:00 2001
From: Samyak Jain <sjain0410@gmail.com>
Date: Sat, 6 Apr 2019 03:14:18 +0530
Subject: [PATCH] addLiquidity in process
---
contracts/ProxyLogics/InstaUniswapPool.sol | 29 +++++++++++++++++++---
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/contracts/ProxyLogics/InstaUniswapPool.sol b/contracts/ProxyLogics/InstaUniswapPool.sol
index b6d0194..053d5ff 100644
--- a/contracts/ProxyLogics/InstaUniswapPool.sol
+++ b/contracts/ProxyLogics/InstaUniswapPool.sol
@@ -129,8 +129,8 @@ contract Helper {
* @dev setting allowance to kyber for the "user proxy" if required
* @param token is the token address
*/
- function setApproval(address token) internal returns (uint) {
- IERC20(token).approve(getAddressUniFactory(), 2**255);
+ function setApproval(address token, address exchangeAdd) internal returns (uint) {
+ IERC20(token).approve(getExchangeAddress(token), 2**255);
}
/**
@@ -138,11 +138,32 @@ contract Helper {
* @param token is the token
*/
function manageApproval(address token, uint srcAmt) internal returns (uint) {
- uint tokenAllowance = IERC20(token).allowance(address(this), getAddressUniFactory());
+ address exchangeAdd = getExchangeAddress(token);
+ uint tokenAllowance = IERC20(token).allowance(address(this), exchangeAdd);
if (srcAmt > tokenAllowance) {
- setApproval(token);
+ setApproval(token, exchangeAdd);
}
}
}
+
+contract InstaUniswapPool is Helper {
+
+ function addLiquidity(address token, uint maxDepositedTokens) public payable returns (uint256) {
+ address uniswapExchangeAdd = getExchangeAddress(token);
+ UniswapPool uniswapExchange = UniswapPool(uniswapExchangeAdd);
+ uint ethQty = msg.value;
+ (uint exchangeEthBal, uint exchangeTokenBal) = getBal(token, uniswapExchangeAdd);
+ uint tokenToDeposit = ethQty*(exchangeTokenBal/exchangeEthBal);
+ require(tokenToDeposit < maxDepositedTokens, "Token to deposit is greater than Max token to Deposit");
+ manageApproval(token, tokenToDeposit);
+ uint tokensMinted = uniswapExchange.addLiquidity.value(ethQty)(
+ uint(0),
+ tokenToDeposit,
+ uint(1899063809) // 6th March 2030 GMT // no logic
+ );
+
+ }
+
+}
\ No newline at end of file