546 lines
18 KiB
Solidity
546 lines
18 KiB
Solidity
/*
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Copyright 2020 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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import {IDODOV2Proxy01} from "./intf/IDODOV2Proxy01.sol";
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import {IDODOV2} from "./intf/IDODOV2.sol";
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import {IDODOV1} from "./intf/IDODOV1.sol";
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import {IDODOApproveProxy} from "./DODOApproveProxy.sol";
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import {IDODOSellHelper} from "./helper/DODOSellHelper.sol";
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import {IERC20} from "../intf/IERC20.sol";
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import {IWETH} from "../intf/IWETH.sol";
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import {IUni} from "./intf/IUni.sol";
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import {SafeMath} from "../lib/SafeMath.sol";
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import {UniversalERC20} from "./lib/UniversalERC20.sol";
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import {SafeERC20} from "../lib/SafeERC20.sol";
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import {DecimalMath} from "../lib/DecimalMath.sol";
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import {ReentrancyGuard} from "../lib/ReentrancyGuard.sol";
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import {InitializableOwnable} from "../lib/InitializableOwnable.sol";
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import {IDODOAdapter} from "./intf/IDODOAdapter.sol";
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/**
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* @title DODOV2Proxy02
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* @author DODO Breeder
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*
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* @notice Entrance of trading in DODO platform
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*/
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contract DODOV2Proxy02 is IDODOV2Proxy01, ReentrancyGuard, InitializableOwnable {
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using SafeMath for uint256;
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using UniversalERC20 for IERC20;
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// ============ Storage ============
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address constant _ETH_ADDRESS_ = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
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address public immutable _WETH_;
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address public immutable _DODO_APPROVE_PROXY_;
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address public immutable _DODO_SELL_HELPER_;
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address public immutable _DVM_FACTORY_;
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mapping (address => bool) public isWhiteListed;
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// ============ Events ============
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event OrderHistory(
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address fromToken,
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address toToken,
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address sender,
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uint256 fromAmount,
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uint256 returnAmount
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);
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// ============ Modifiers ============
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modifier judgeExpired(uint256 deadLine) {
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require(deadLine >= block.timestamp, "DODOV2Proxy02: EXPIRED");
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_;
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}
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fallback() external payable {}
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receive() external payable {}
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constructor(
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address dvmFactory,
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address payable weth,
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address dodoApproveProxy,
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address dodoSellHelper
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) public {
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_DVM_FACTORY_ = dvmFactory;
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_WETH_ = weth;
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_DODO_APPROVE_PROXY_ = dodoApproveProxy;
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_DODO_SELL_HELPER_ = dodoSellHelper;
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}
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function addWhiteList (address contractAddr) public onlyOwner {
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isWhiteListed[contractAddr] = true;
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}
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function removeWhiteList (address contractAddr) public onlyOwner {
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isWhiteListed[contractAddr] = false;
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}
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// ============ DVM Functions (create & add liquidity) ============
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function createDODOVendingMachine(
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address baseToken,
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address quoteToken,
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uint256 baseInAmount,
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uint256 quoteInAmount,
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uint256 lpFeeRate,
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uint256 i,
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uint256 k,
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bool isOpenTWAP,
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uint256 deadLine
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)
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external
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override
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payable
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preventReentrant
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judgeExpired(deadLine)
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returns (address newVendingMachine, uint256 shares)
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{
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{
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address _baseToken = baseToken == _ETH_ADDRESS_ ? _WETH_ : baseToken;
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address _quoteToken = quoteToken == _ETH_ADDRESS_ ? _WETH_ : quoteToken;
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newVendingMachine = IDODOV2(_DVM_FACTORY_).createDODOVendingMachine(
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_baseToken,
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_quoteToken,
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lpFeeRate,
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i,
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k,
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isOpenTWAP
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);
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}
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{
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address _baseToken = baseToken;
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address _quoteToken = quoteToken;
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_deposit(
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msg.sender,
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newVendingMachine,
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_baseToken,
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baseInAmount,
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_baseToken == _ETH_ADDRESS_
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);
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_deposit(
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msg.sender,
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newVendingMachine,
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_quoteToken,
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quoteInAmount,
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_quoteToken == _ETH_ADDRESS_
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);
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}
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(shares, , ) = IDODOV2(newVendingMachine).buyShares(msg.sender);
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}
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function addDVMLiquidity(
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address dvmAddress,
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uint256 baseInAmount,
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uint256 quoteInAmount,
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uint256 baseMinAmount,
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uint256 quoteMinAmount,
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uint8 flag, // 0 - ERC20, 1 - baseInETH, 2 - quoteInETH
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uint256 deadLine
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)
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external
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override
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payable
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preventReentrant
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judgeExpired(deadLine)
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returns (
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uint256 shares,
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uint256 baseAdjustedInAmount,
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uint256 quoteAdjustedInAmount
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)
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{
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address _dvm = dvmAddress;
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(baseAdjustedInAmount, quoteAdjustedInAmount) = _addDVMLiquidity(
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_dvm,
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baseInAmount,
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quoteInAmount
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);
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require(
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baseAdjustedInAmount >= baseMinAmount && quoteAdjustedInAmount >= quoteMinAmount,
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"DODOV2Proxy02: deposit amount is not enough"
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);
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_deposit(msg.sender, _dvm, IDODOV2(_dvm)._BASE_TOKEN_(), baseAdjustedInAmount, flag == 1);
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_deposit(msg.sender, _dvm, IDODOV2(_dvm)._QUOTE_TOKEN_(), quoteAdjustedInAmount, flag == 2);
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(shares, , ) = IDODOV2(_dvm).buyShares(msg.sender);
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// refund dust eth
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if (flag == 1 && msg.value > baseAdjustedInAmount) msg.sender.transfer(msg.value - baseAdjustedInAmount);
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if (flag == 2 && msg.value > quoteAdjustedInAmount) msg.sender.transfer(msg.value - quoteAdjustedInAmount);
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}
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function _addDVMLiquidity(
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address dvmAddress,
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uint256 baseInAmount,
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uint256 quoteInAmount
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) internal view returns (uint256 baseAdjustedInAmount, uint256 quoteAdjustedInAmount) {
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(uint256 baseReserve, uint256 quoteReserve) = IDODOV2(dvmAddress).getVaultReserve();
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if (quoteReserve == 0 && baseReserve == 0) {
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baseAdjustedInAmount = baseInAmount;
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quoteAdjustedInAmount = quoteInAmount;
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}
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if (quoteReserve == 0 && baseReserve > 0) {
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baseAdjustedInAmount = baseInAmount;
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quoteAdjustedInAmount = 0;
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}
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if (quoteReserve > 0 && baseReserve > 0) {
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uint256 baseIncreaseRatio = DecimalMath.divFloor(baseInAmount, baseReserve);
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uint256 quoteIncreaseRatio = DecimalMath.divFloor(quoteInAmount, quoteReserve);
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if (baseIncreaseRatio <= quoteIncreaseRatio) {
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baseAdjustedInAmount = baseInAmount;
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quoteAdjustedInAmount = DecimalMath.mulFloor(quoteReserve, baseIncreaseRatio);
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} else {
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quoteAdjustedInAmount = quoteInAmount;
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baseAdjustedInAmount = DecimalMath.mulFloor(baseReserve, quoteIncreaseRatio);
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}
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}
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}
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// ============ Swap ============
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function dodoSwapV2ETHToToken(
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address toToken,
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uint256 minReturnAmount,
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address[] memory dodoPairs,
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uint256 directions,
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bool,
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uint256 deadLine
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)
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external
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override
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payable
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judgeExpired(deadLine)
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returns (uint256 returnAmount)
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{
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require(dodoPairs.length > 0, "DODOV2Proxy02: PAIRS_EMPTY");
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require(minReturnAmount > 0, "DODOV2Proxy02: RETURN_AMOUNT_ZERO");
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uint256 originToTokenBalance = IERC20(toToken).balanceOf(msg.sender);
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IWETH(_WETH_).deposit{value: msg.value}();
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SafeERC20.safeTransfer(IERC20(_WETH_), dodoPairs[0], msg.value);
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for (uint256 i = 0; i < dodoPairs.length; i++) {
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if (i == dodoPairs.length - 1) {
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if (directions & 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(msg.sender);
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(msg.sender);
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}
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} else {
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if (directions & 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(dodoPairs[i + 1]);
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(dodoPairs[i + 1]);
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}
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}
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directions = directions >> 1;
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}
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returnAmount = IERC20(toToken).balanceOf(msg.sender).sub(originToTokenBalance);
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require(returnAmount >= minReturnAmount, "DODOV2Proxy02: Return amount is not enough");
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emit OrderHistory(
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_ETH_ADDRESS_,
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toToken,
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msg.sender,
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msg.value,
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returnAmount
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);
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}
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function dodoSwapV2TokenToETH(
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address fromToken,
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uint256 fromTokenAmount,
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uint256 minReturnAmount,
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address[] memory dodoPairs,
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uint256 directions,
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bool,
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uint256 deadLine
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)
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external
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override
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judgeExpired(deadLine)
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returns (uint256 returnAmount)
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{
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require(dodoPairs.length > 0, "DODOV2Proxy02: PAIRS_EMPTY");
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require(minReturnAmount > 0, "DODOV2Proxy02: RETURN_AMOUNT_ZERO");
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IDODOApproveProxy(_DODO_APPROVE_PROXY_).claimTokens(fromToken, msg.sender, dodoPairs[0], fromTokenAmount);
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for (uint256 i = 0; i < dodoPairs.length; i++) {
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if (i == dodoPairs.length - 1) {
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if (directions & 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(address(this));
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(address(this));
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}
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} else {
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if (directions & 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(dodoPairs[i + 1]);
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(dodoPairs[i + 1]);
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}
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}
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directions = directions >> 1;
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}
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returnAmount = IWETH(_WETH_).balanceOf(address(this));
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require(returnAmount >= minReturnAmount, "DODOV2Proxy02: Return amount is not enough");
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IWETH(_WETH_).withdraw(returnAmount);
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msg.sender.transfer(returnAmount);
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emit OrderHistory(
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fromToken,
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_ETH_ADDRESS_,
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msg.sender,
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fromTokenAmount,
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returnAmount
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);
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}
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function dodoSwapV2TokenToToken(
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address fromToken,
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address toToken,
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uint256 fromTokenAmount,
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uint256 minReturnAmount,
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address[] memory dodoPairs,
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uint256 directions,
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bool,
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uint256 deadLine
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)
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external
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override
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judgeExpired(deadLine)
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returns (uint256 returnAmount)
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{
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require(dodoPairs.length > 0, "DODOV2Proxy02: PAIRS_EMPTY");
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require(minReturnAmount > 0, "DODOV2Proxy02: RETURN_AMOUNT_ZERO");
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uint256 originToTokenBalance = IERC20(toToken).balanceOf(msg.sender);
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IDODOApproveProxy(_DODO_APPROVE_PROXY_).claimTokens(fromToken, msg.sender, dodoPairs[0], fromTokenAmount);
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for (uint256 i = 0; i < dodoPairs.length; i++) {
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if (i == dodoPairs.length - 1) {
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if (directions & 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(msg.sender);
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(msg.sender);
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}
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} else {
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if (directions& 1 == 0) {
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IDODOV2(dodoPairs[i]).sellBase(dodoPairs[i + 1]);
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} else {
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IDODOV2(dodoPairs[i]).sellQuote(dodoPairs[i + 1]);
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}
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}
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directions = directions >> 1;
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}
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returnAmount = IERC20(toToken).balanceOf(msg.sender).sub(originToTokenBalance);
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require(returnAmount >= minReturnAmount, "DODOV2Proxy02: Return amount is not enough");
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emit OrderHistory(
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fromToken,
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toToken,
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msg.sender,
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fromTokenAmount,
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returnAmount
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);
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}
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function externalSwap(
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address fromToken,
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address toToken,
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address approveTarget,
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address swapTarget,
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uint256 fromTokenAmount,
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uint256 minReturnAmount,
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bytes memory callDataConcat,
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bool,
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uint256 deadLine
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)
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external
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override
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payable
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judgeExpired(deadLine)
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returns (uint256 returnAmount)
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{
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require(minReturnAmount > 0, "DODOV2Proxy02: RETURN_AMOUNT_ZERO");
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uint256 toTokenOriginBalance = IERC20(toToken).universalBalanceOf(msg.sender);
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if (fromToken != _ETH_ADDRESS_) {
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IDODOApproveProxy(_DODO_APPROVE_PROXY_).claimTokens(
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fromToken,
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msg.sender,
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address(this),
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fromTokenAmount
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);
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IERC20(fromToken).universalApproveMax(approveTarget, fromTokenAmount);
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}
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require(isWhiteListed[swapTarget], "DODOV2Proxy02: Not Whitelist Contract");
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(bool success, ) = swapTarget.call{value: fromToken == _ETH_ADDRESS_ ? msg.value : 0}(callDataConcat);
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require(success, "DODOV2Proxy02: External Swap execution Failed");
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IERC20(toToken).universalTransfer(
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msg.sender,
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IERC20(toToken).universalBalanceOf(address(this))
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);
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returnAmount = IERC20(toToken).universalBalanceOf(msg.sender).sub(toTokenOriginBalance);
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require(returnAmount >= minReturnAmount, "DODOV2Proxy02: Return amount is not enough");
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emit OrderHistory(
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fromToken,
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toToken,
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msg.sender,
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fromTokenAmount,
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returnAmount
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);
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}
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function dodoSwapV1(
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address fromToken,
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address toToken,
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uint256 fromTokenAmount,
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uint256 minReturnAmount,
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address[] memory dodoPairs,
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uint256 directions,
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bool,
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uint256 deadLine
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)
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external
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override
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payable
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judgeExpired(deadLine)
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returns (uint256 returnAmount)
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{
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require(dodoPairs.length > 0, "DODOV2Proxy02: PAIRS_EMPTY");
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require(minReturnAmount > 0, "DODOV2Proxy02: RETURN_AMOUNT_ZERO");
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address _fromToken = fromToken;
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address _toToken = toToken;
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_deposit(msg.sender, address(this), _fromToken, fromTokenAmount, _fromToken == _ETH_ADDRESS_);
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for (uint256 i = 0; i < dodoPairs.length; i++) {
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address curDodoPair = dodoPairs[i];
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if (directions & 1 == 0) {
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address curDodoBase = IDODOV1(curDodoPair)._BASE_TOKEN_();
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uint256 curAmountIn = IERC20(curDodoBase).balanceOf(address(this));
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IERC20(curDodoBase).universalApproveMax(curDodoPair, curAmountIn);
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IDODOV1(curDodoPair).sellBaseToken(curAmountIn, 0, "");
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} else {
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address curDodoQuote = IDODOV1(curDodoPair)._QUOTE_TOKEN_();
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uint256 curAmountIn = IERC20(curDodoQuote).balanceOf(address(this));
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IERC20(curDodoQuote).universalApproveMax(curDodoPair, curAmountIn);
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uint256 canBuyBaseAmount = IDODOSellHelper(_DODO_SELL_HELPER_).querySellQuoteToken(
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curDodoPair,
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curAmountIn
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);
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IDODOV1(curDodoPair).buyBaseToken(canBuyBaseAmount, curAmountIn, "");
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}
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directions = directions >> 1;
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}
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if (_toToken == _ETH_ADDRESS_) {
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returnAmount = IWETH(_WETH_).balanceOf(address(this));
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IWETH(_WETH_).withdraw(returnAmount);
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} else {
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returnAmount = IERC20(_toToken).tokenBalanceOf(address(this));
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}
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require(returnAmount >= minReturnAmount, "DODOV2Proxy02: Return amount is not enough");
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IERC20(_toToken).universalTransfer(msg.sender, returnAmount);
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emit OrderHistory(_fromToken, _toToken, msg.sender, fromTokenAmount, returnAmount);
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}
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//============ CrowdPooling Functions (bid) ============
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// function bid(
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// address cpAddress,
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// uint256 quoteAmount,
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// uint8 flag, // 0 - ERC20, 1 - quoteInETH
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// uint256 deadLine
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// ) external override payable preventReentrant judgeExpired(deadLine) {
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// _deposit(msg.sender, cpAddress, IDODOV2(cpAddress)._QUOTE_TOKEN_(), quoteAmount, flag == 1);
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// IDODOV2(cpAddress).bid(msg.sender);
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// }
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function addLiquidityToV1(
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address pair,
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uint256 baseAmount,
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uint256 quoteAmount,
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uint256 baseMinShares,
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uint256 quoteMinShares,
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uint8 flag, // 0 erc20 In 1 baseInETH 2 quoteIn ETH
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uint256 deadLine
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) external override payable preventReentrant judgeExpired(deadLine) returns(uint256 baseShares, uint256 quoteShares) {
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address _baseToken = IDODOV1(pair)._BASE_TOKEN_();
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address _quoteToken = IDODOV1(pair)._QUOTE_TOKEN_();
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_deposit(msg.sender, address(this), _baseToken, baseAmount, flag == 1);
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_deposit(msg.sender, address(this), _quoteToken, quoteAmount, flag == 2);
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if(baseAmount > 0) {
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IERC20(_baseToken).universalApproveMax(pair, baseAmount);
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baseShares = IDODOV1(pair).depositBaseTo(msg.sender, baseAmount);
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}
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if(quoteAmount > 0) {
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IERC20(_quoteToken).universalApproveMax(pair, quoteAmount);
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quoteShares = IDODOV1(pair).depositQuoteTo(msg.sender, quoteAmount);
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}
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require(baseShares >= baseMinShares && quoteShares >= quoteMinShares,"DODOV2Proxy02: Return DLP is not enough");
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}
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function _deposit(
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address from,
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address to,
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address token,
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uint256 amount,
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bool isETH
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) internal {
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if (isETH) {
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if (amount > 0) {
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require(msg.value == amount, "ETH_VALUE_WRONG");
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IWETH(_WETH_).deposit{value: amount}();
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if (to != address(this)) SafeERC20.safeTransfer(IERC20(_WETH_), to, amount);
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}
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} else {
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IDODOApproveProxy(_DODO_APPROVE_PROXY_).claimTokens(token, from, to, amount);
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}
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}
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function _withdraw(
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address payable to,
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address token,
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uint256 amount,
|
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bool isETH
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) internal {
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if (isETH) {
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if (amount > 0) {
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IWETH(_WETH_).withdraw(amount);
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to.transfer(amount);
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}
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} else {
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if (amount > 0) {
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SafeERC20.safeTransfer(IERC20(token), to, amount);
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}
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}
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}
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}
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