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sushiswap: avalanche
This commit is contained in:
pradyuman-verma
parent
aeae64a15f
commit
9f73e96f35
42
contracts/avalanche/connectors/sushiswap/events.sol
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42
contracts/avalanche/connectors/sushiswap/events.sol
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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contract Events {
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event LogDepositLiquidity(
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address indexed tokenA,
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address indexed tokenB,
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uint256 amtA,
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uint256 amtB,
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uint256 uniAmount,
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uint256 getId,
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uint256 setId
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);
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event LogWithdrawLiquidity(
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address indexed tokenA,
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address indexed tokenB,
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uint256 amountA,
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uint256 amountB,
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uint256 uniAmount,
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uint256 getId,
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uint256[] setId
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);
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event LogBuy(
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address indexed buyToken,
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address indexed sellToken,
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uint256 buyAmt,
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uint256 sellAmt,
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uint256 getId,
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uint256 setId
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);
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event LogSell(
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address indexed buyToken,
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address indexed sellToken,
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uint256 buyAmt,
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uint256 sellAmt,
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uint256 getId,
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uint256 setId
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);
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}
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185
contracts/avalanche/connectors/sushiswap/helpers.sol
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185
contracts/avalanche/connectors/sushiswap/helpers.sol
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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import {TokenInterface} from "../../common/interfaces.sol";
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import {DSMath} from "../../common/math.sol";
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import {Basic} from "../../common/basic.sol";
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import {ISushiSwapRouter, ISushiSwapFactory} from "./interface.sol";
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abstract contract Helpers is DSMath, Basic {
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/**
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* @dev ISushiSwapRouter
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*/
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ISushiSwapRouter internal constant router =
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ISushiSwapRouter(0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506);
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function getExpectedBuyAmt(address[] memory paths, uint256 sellAmt)
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internal
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view
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returns (uint256 buyAmt)
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{
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uint256[] memory amts = router.getAmountsOut(sellAmt, paths);
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buyAmt = amts[1];
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}
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function getExpectedSellAmt(address[] memory paths, uint256 buyAmt)
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internal
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view
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returns (uint256 sellAmt)
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{
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uint256[] memory amts = router.getAmountsIn(buyAmt, paths);
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sellAmt = amts[0];
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}
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function checkPair(address[] memory paths) internal view {
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address pair = ISushiSwapFactory(router.factory()).getPair(
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paths[0],
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paths[1]
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);
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require(pair != address(0), "No-exchange-address");
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}
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function getPaths(address buyAddr, address sellAddr)
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internal
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pure
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returns (address[] memory paths)
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{
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paths = new address[](2);
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paths[0] = address(sellAddr);
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paths[1] = address(buyAddr);
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}
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function getMinAmount(
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TokenInterface token,
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uint256 amt,
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uint256 slippage
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) internal view returns (uint256 minAmt) {
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uint256 _amt18 = convertTo18(token.decimals(), amt);
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minAmt = wmul(_amt18, sub(WAD, slippage));
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minAmt = convert18ToDec(token.decimals(), minAmt);
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}
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function _addLiquidity(
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address tokenA,
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address tokenB,
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uint256 _amt,
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uint256 unitAmt,
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uint256 slippage
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)
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internal
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returns (
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uint256 _amtA,
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uint256 _amtB,
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uint256 _liquidity
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)
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{
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(TokenInterface _tokenA, TokenInterface _tokenB) = changeAvaxAddress(
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tokenA,
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tokenB
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);
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_amtA = _amt == uint256(-1)
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? getTokenBal(TokenInterface(tokenA))
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: _amt;
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_amtB = convert18ToDec(
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_tokenB.decimals(),
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wmul(unitAmt, convertTo18(_tokenA.decimals(), _amtA))
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);
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bool isAvax = address(_tokenA) == wavaxAddr;
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convertAvaxToWavax(isAvax, _tokenA, _amtA);
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isAvax = address(_tokenB) == wavaxAddr;
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convertAvaxToWavax(isAvax, _tokenB, _amtB);
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approve(_tokenA, address(router), _amtA);
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approve(_tokenB, address(router), _amtB);
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uint256 minAmtA = getMinAmount(_tokenA, _amtA, slippage);
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uint256 minAmtB = getMinAmount(_tokenB, _amtB, slippage);
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(_amtA, _amtB, _liquidity) = router.addLiquidity(
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address(_tokenA),
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address(_tokenB),
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_amtA,
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_amtB,
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minAmtA,
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minAmtB,
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address(this),
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block.timestamp + 1
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);
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}
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function _removeLiquidity(
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address tokenA,
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address tokenB,
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uint256 _amt,
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uint256 unitAmtA,
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uint256 unitAmtB
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)
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internal
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returns (
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uint256 _amtA,
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uint256 _amtB,
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uint256 _uniAmt
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)
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{
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TokenInterface _tokenA;
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TokenInterface _tokenB;
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(_tokenA, _tokenB, _uniAmt) = _getRemoveLiquidityData(
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tokenA,
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tokenB,
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_amt
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);
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{
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uint256 minAmtA = convert18ToDec(
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_tokenA.decimals(),
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wmul(unitAmtA, _uniAmt)
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);
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uint256 minAmtB = convert18ToDec(
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_tokenB.decimals(),
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wmul(unitAmtB, _uniAmt)
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);
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(_amtA, _amtB) = router.removeLiquidity(
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address(_tokenA),
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address(_tokenB),
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_uniAmt,
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minAmtA,
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minAmtB,
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address(this),
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block.timestamp + 1
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);
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}
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bool isAvax = address(_tokenA) == wavaxAddr;
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convertWavaxToAvax(isAvax, _tokenA, _amtA);
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isAvax = address(_tokenB) == wavaxAddr;
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convertWavaxToAvax(isAvax, _tokenB, _amtB);
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}
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function _getRemoveLiquidityData(
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address tokenA,
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address tokenB,
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uint256 _amt
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)
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internal
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returns (
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TokenInterface _tokenA,
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TokenInterface _tokenB,
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uint256 _uniAmt
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)
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{
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(_tokenA, _tokenB) = changeAvaxAddress(tokenA, tokenB);
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address exchangeAddr = ISushiSwapFactory(router.factory()).getPair(
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address(_tokenA),
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address(_tokenB)
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);
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require(exchangeAddr != address(0), "pair-not-found.");
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TokenInterface uniToken = TokenInterface(exchangeAddr);
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_uniAmt = _amt == uint256(-1)
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? uniToken.balanceOf(address(this))
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: _amt;
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approve(uniToken, address(router), _uniAmt);
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}
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}
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58
contracts/avalanche/connectors/sushiswap/interface.sol
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58
contracts/avalanche/connectors/sushiswap/interface.sol
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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interface ISushiSwapRouter {
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function factory() external pure returns (address);
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function WETH() external pure returns (address);
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function addLiquidity(
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address tokenA,
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address tokenB,
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uint amountADesired,
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uint amountBDesired,
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uint amountAMin,
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uint amountBMin,
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address to,
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uint deadline
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) external returns (uint amountA, uint amountB, uint liquidity);
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function removeLiquidity(
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address tokenA,
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address tokenB,
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uint liquidity,
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uint amountAMin,
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uint amountBMin,
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address to,
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uint deadline
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) external returns (uint amountA, uint amountB);
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function swapExactTokensForTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external returns (uint[] memory amounts);
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function swapTokensForExactTokens(
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uint amountOut,
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uint amountInMax,
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address[] calldata path,
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address to,
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uint deadline
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) external returns (uint[] memory amounts);
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function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
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function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
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function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
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function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
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function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
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}
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interface ISushiSwapFactory {
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function getPair(address tokenA, address tokenB) external view returns (address pair);
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function allPairs(uint) external view returns (address pair);
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function allPairsLength() external view returns (uint);
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function feeTo() external view returns (address);
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function feeToSetter() external view returns (address);
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function createPair(address tokenA, address tokenB) external returns (address pair);
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}
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197
contracts/avalanche/connectors/sushiswap/main.sol
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197
contracts/avalanche/connectors/sushiswap/main.sol
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@ -0,0 +1,197 @@
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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/**
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* @title SushiSwap.
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* @dev Decentralized Exchange.
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*/
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import { TokenInterface } from "../../common/interfaces.sol";
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import { Helpers } from "./helpers.sol";
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import { Events } from "./events.sol";
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abstract contract SushipswapResolver is Helpers, Events {
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/**
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* @dev Deposit Liquidity.
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* @notice Deposit Liquidity to a SushiSwap pool.
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* @param tokenA The address of token A.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param tokenB The address of token B.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amtA The amount of A tokens to deposit.
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* @param unitAmt The unit amount of of amtB/amtA with slippage.
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* @param slippage Slippage amount.
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* @param getId ID to retrieve amtA.
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* @param setId ID stores the amount of pools tokens received.
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*/
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function deposit(
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address tokenA,
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address tokenB,
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uint256 amtA,
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uint256 unitAmt,
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uint256 slippage,
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uint256 getId,
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uint256 setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amtA);
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(uint _amtA, uint _amtB, uint _uniAmt) = _addLiquidity(
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tokenA,
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tokenB,
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_amt,
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unitAmt,
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slippage
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);
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setUint(setId, _uniAmt);
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_eventName = "LogDepositLiquidity(address,address,uint256,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(tokenA, tokenB, _amtA, _amtB, _uniAmt, getId, setId);
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}
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/**
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* @dev Withdraw Liquidity.
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* @notice Withdraw Liquidity from a SushiSwap pool.
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* @param tokenA The address of token A.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param tokenB The address of token B.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param uniAmt The amount of pool tokens to withdraw.
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* @param unitAmtA The unit amount of amtA/uniAmt with slippage.
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* @param unitAmtB The unit amount of amtB/uniAmt with slippage.
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* @param getId ID to retrieve uniAmt.
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* @param setIds Array of IDs to store the amount tokens received.
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*/
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function withdraw(
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address tokenA,
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address tokenB,
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uint256 uniAmt,
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uint256 unitAmtA,
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uint256 unitAmtB,
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uint256 getId,
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uint256[] calldata setIds
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, uniAmt);
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(uint _amtA, uint _amtB, uint _uniAmt) = _removeLiquidity(
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tokenA,
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tokenB,
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_amt,
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unitAmtA,
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unitAmtB
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);
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setUint(setIds[0], _amtA);
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setUint(setIds[1], _amtB);
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_eventName = "LogWithdrawLiquidity(address,address,uint256,uint256,uint256,uint256,uint256[])";
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_eventParam = abi.encode(tokenA, tokenB, _amtA, _amtB, _uniAmt, getId, setIds);
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}
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/**
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* @dev Buy Avax/ERC20_Token.
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* @notice Buy a token using a SushiSwap
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* @param buyAddr The address of the token to buy.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param sellAddr The address of the token to sell.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param buyAmt The amount of tokens to buy.
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* @param unitAmt The unit amount of sellAmt/buyAmt with slippage.
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* @param getId ID to retrieve buyAmt.
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* @param setId ID to store the amount of tokens sold.
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*/
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function buy(
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address buyAddr,
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address sellAddr,
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uint256 buyAmt,
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uint256 unitAmt,
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uint256 getId,
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uint256 setId
|
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _buyAmt = getUint(getId, buyAmt);
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(TokenInterface _buyAddr, TokenInterface _sellAddr) = changeAvaxAddress(buyAddr, sellAddr);
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address[] memory paths = getPaths(address(_buyAddr), address(_sellAddr));
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uint _slippageAmt = convert18ToDec(_sellAddr.decimals(),
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wmul(unitAmt, convertTo18(_buyAddr.decimals(), _buyAmt))
|
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);
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checkPair(paths);
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uint _expectedAmt = getExpectedSellAmt(paths, _buyAmt);
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require(_slippageAmt >= _expectedAmt, "Too much slippage");
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bool isAvax = address(_sellAddr) == wavaxAddr;
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convertAvaxToWavax(isAvax, _sellAddr, _expectedAmt);
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approve(_sellAddr, address(router), _expectedAmt);
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|
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uint _sellAmt = router.swapTokensForExactTokens(
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_buyAmt,
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_expectedAmt,
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paths,
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address(this),
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block.timestamp + 1
|
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)[0];
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isAvax = address(_buyAddr) == wavaxAddr;
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convertWavaxToAvax(isAvax, _buyAddr, _buyAmt);
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setUint(setId, _sellAmt);
|
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_eventName = "LogBuy(address,address,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(buyAddr, sellAddr, _buyAmt, _sellAmt, getId, setId);
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}
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/**
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* @dev Sell Avax/ERC20_Token.
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* @notice Sell a token using a SushiSwap
|
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* @param buyAddr The address of the token to buy.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
|
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* @param sellAddr The address of the token to sell.(For Avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
|
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* @param sellAmt The amount of the token to sell.
|
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* @param unitAmt The unit amount of buyAmt/sellAmt with slippage.
|
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* @param getId ID to retrieve sellAmt.
|
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* @param setId ID stores the amount of token brought.
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*/
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function sell(
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address buyAddr,
|
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address sellAddr,
|
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uint256 sellAmt,
|
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uint256 unitAmt,
|
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uint256 getId,
|
||||
uint256 setId
|
||||
) external payable returns (string memory _eventName, bytes memory _eventParam) {
|
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uint _sellAmt = getUint(getId, sellAmt);
|
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(TokenInterface _buyAddr, TokenInterface _sellAddr) = changeAvaxAddress(buyAddr, sellAddr);
|
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address[] memory paths = getPaths(address(_buyAddr), address(_sellAddr));
|
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if (_sellAmt == uint(-1)) {
|
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_sellAmt = sellAddr == avaxAddr ?
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address(this).balance :
|
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_sellAddr.balanceOf(address(this));
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}
|
||||
|
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uint _slippageAmt = convert18ToDec(_buyAddr.decimals(),
|
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wmul(unitAmt, convertTo18(_sellAddr.decimals(), _sellAmt))
|
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);
|
||||
|
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checkPair(paths);
|
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uint _expectedAmt = getExpectedBuyAmt(paths, _sellAmt);
|
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require(_slippageAmt <= _expectedAmt, "Too much slippage");
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||||
|
||||
bool isAvax = address(_sellAddr) == wavaxAddr;
|
||||
convertAvaxToWavax(isAvax, _sellAddr, _sellAmt);
|
||||
approve(_sellAddr, address(router), _sellAmt);
|
||||
|
||||
uint _buyAmt = router.swapExactTokensForTokens(
|
||||
_sellAmt,
|
||||
_expectedAmt,
|
||||
paths,
|
||||
address(this),
|
||||
block.timestamp + 1
|
||||
)[1];
|
||||
|
||||
isAvax = address(_buyAddr) == wavaxAddr;
|
||||
convertWavaxToAvax(isAvax, _buyAddr, _buyAmt);
|
||||
|
||||
setUint(setId, _buyAmt);
|
||||
|
||||
_eventName = "LogSell(address,address,uint256,uint256,uint256,uint256)";
|
||||
_eventParam = abi.encode(buyAddr, sellAddr, _buyAmt, _sellAmt, getId, setId);
|
||||
}
|
||||
}
|
||||
|
||||
contract ConnectV2SushiswapAvalanche is SushipswapResolver {
|
||||
string public constant name = "Sushiswap-v1.1";
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user