Contract 0xD3f89C21719Ec5961a3E6B0f9bBf9F9b4180E9e9

 
Txn Hash Method
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0x67152241e0327e589b0ceae4881db82235577785bf6eb45059b405fab7d07f4dExecute387491652022-05-21 18:20:50196 days 22 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.338915990707
0x57510b9e7645538067a367cecae1869e5a57966a154722921db6dac6b00f2cdbExecute387101182022-05-21 5:10:43197 days 11 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.01166142
0xe8168358aa208b304a8509f65152d525ca6d34639014108bd4c24cab13a613fbExecute385602892022-05-19 4:50:42199 days 11 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.313200953049
0xa6063a109eb6500c29f3b01e52f4d97fbbaac84c17143d478c053a3591b003e5Execute385243862022-05-18 16:40:48199 days 23 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM1.19795
0x5cf6225dafdfccd4fa445c9c26430926c898a2cf950fb75454b380c29e22cf6dExecute383704422022-05-16 14:21:18202 days 2 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM1.475598
0x27d0737ed96fa1f1007c02e3fdd14fa64b288eb052f2c1bd442c7a18f1a1663cExecute383704202022-05-16 14:20:40202 days 2 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM2.280650308238
0xee0fe5dc03779800e8b5e235e5cb9b6f478a0dccdcf3f2735dbf439e60462516Execute379320742022-05-09 21:01:27208 days 19 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM1.519075466028
0x3b30564f6c81cdfe7ec7742d653999c4dde17d8ce6d7d249f7b089de36997ec2Execute379320612022-05-09 21:00:55208 days 19 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM1.516883209757
0xbb01e94db55c0df867e3aef37cefd8cef5b3a5854b1601e5bc254c5ae1aee97dExecute373087132022-05-01 4:10:40217 days 12 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.282560639109
0x065bf6d05109935febb4debf17500b62a10fff066b5c741ce469315710a74124Execute372407522022-04-29 23:20:54218 days 17 hrs ago0x000006861be4c6c74ed2a7bef73693e9dc8bd2d9 IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.791357335044
0x05417593f4f6c147d9398298b0bb9c605e9bfe1259fe2cc75ac1908b245d6ddfExecute371347802022-04-28 9:46:44220 days 6 hrs ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.131158582696
0x9a742cd3c85809069f248f290004f7eb9b34c3fd95862ac62c9e734809b34811Execute371347652022-04-28 9:46:29220 days 6 hrs ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.150550553599
0x7c8d15bbff3b4217419249b36a0985e8b263b90a7b1f3321904181cdbc8a596bExecute369388142022-04-25 16:06:16223 days 15 mins ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.155706855443
0xa214123178f4c4a7384545bbb44174682c390d4899ec8e7637b9c879010c08bdExecute369388002022-04-25 16:06:03223 days 16 mins ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.1162425
0x6a87f76823c67f806f19043c20f5ee437d57dd4e4c19300774206eb24af208eeExecute369387852022-04-25 16:05:45223 days 16 mins ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.1249485
0xbaa54dc67409710234130b1b4a1c45ba2412f7797ce4370c5a472e00d9c0d50fExecute369387712022-04-25 16:05:32223 days 16 mins ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.278433218431
0xc5e4d96fc301fae9cfc9bf867e9a6c6a98cd06a4edafb3a84f34435be73549ddExecute369385382022-04-25 16:01:20223 days 20 mins ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM2.180379
0x5ba0dab82c2715e683a63821cd957145f5f97b92821d2a214e644f184e81f0feExecute369187342022-04-25 9:06:42223 days 7 hrs ago0x6079038b6be50b68631d5718ef6f2b1c07b8128f IN  0xd3f89c21719ec5961a3e6b0f9bbf9f9b4180e9e90 FTM0.2170175389
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0xbfa68ed1ed18014e55ff4580f3886a8b53d3416531209b031d1dcdf56f611b2e317236242022-02-22 18:43:59284 days 21 hrs ago 0xb82193725471dc7bfaab1a3ab93c7b42963f3265  Contract Creation0 FTM
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Contract Source Code Verified (Exact Match)

Contract Name:
TradeFactory

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 30 : TradeFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@yearn/contract-utils/contracts/utils/CollectableDust.sol';

import './TradeFactoryPositionsHandler.sol';
import './TradeFactoryExecutor.sol';

interface ITradeFactory is ITradeFactoryExecutor, ITradeFactoryPositionsHandler {}

contract TradeFactory is TradeFactoryExecutor, CollectableDust, ITradeFactory {
  constructor(
    address _masterAdmin,
    address _swapperAdder,
    address _swapperSetter,
    address _strategyModifier,
    address _mechanicsRegistry
  )
    TradeFactoryAccessManager(_masterAdmin)
    TradeFactoryPositionsHandler(_strategyModifier)
    TradeFactorySwapperHandler(_swapperAdder, _swapperSetter)
    TradeFactoryExecutor(_mechanicsRegistry)
  {}

  // Collectable Dust
  function sendDust(
    address _to,
    address _token,
    uint256 _amount
  ) external virtual override onlyRole(MASTER_ADMIN) {
    _sendDust(_to, _token, _amount);
  }
}

File 2 of 30 : CollectableDust.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

import '../interfaces/utils/ICollectableDust.sol';

abstract contract CollectableDust is ICollectableDust {
  using SafeERC20 for IERC20;
  using EnumerableSet for EnumerableSet.AddressSet;

  address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
  EnumerableSet.AddressSet internal protocolTokens;

  constructor() {}

  function _addProtocolToken(address _token) internal {
    require(!protocolTokens.contains(_token), 'collectable-dust/token-is-part-of-the-protocol');
    protocolTokens.add(_token);
  }

  function _removeProtocolToken(address _token) internal {
    require(protocolTokens.contains(_token), 'collectable-dust/token-not-part-of-the-protocol');
    protocolTokens.remove(_token);
  }

  function _sendDust(
    address _to,
    address _token,
    uint256 _amount
  ) internal {
    require(_to != address(0), 'collectable-dust/cant-send-dust-to-zero-address');
    require(!protocolTokens.contains(_token), 'collectable-dust/token-is-part-of-the-protocol');
    if (_token == ETH_ADDRESS) {
      payable(_to).transfer(_amount);
    } else {
      IERC20(_token).safeTransfer(_to, _amount);
    }
    emit DustSent(_to, _token, _amount);
  }
}

File 3 of 30 : TradeFactoryPositionsHandler.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import './TradeFactorySwapperHandler.sol';

import {ISwapperEnabled} from '../utils/ISwapperEnabled.sol';

interface ITradeFactoryPositionsHandler {
  struct EnabledTrade {
    address _strategy;
    address _tokenIn;
    address _tokenOut;
  }

  error InvalidTrade();

  error AllowanceShouldBeZero();

  function enabledTrades() external view returns (EnabledTrade[] memory _enabledTrades);

  function enable(address _tokenIn, address _tokenOut) external;

  function disable(address _tokenIn, address _tokenOut) external;

  function disableByAdmin(
    address _strategy,
    address _tokenIn,
    address _tokenOut
  ) external;
}

abstract contract TradeFactoryPositionsHandler is ITradeFactoryPositionsHandler, TradeFactorySwapperHandler {
  using EnumerableSet for EnumerableSet.AddressSet;

  bytes32 public constant STRATEGY = keccak256('STRATEGY');
  bytes32 public constant STRATEGY_MANAGER = keccak256('STRATEGY_MANAGER');

  EnumerableSet.AddressSet internal _strategies;

  // strategy -> tokenIn[]
  mapping(address => EnumerableSet.AddressSet) internal _tokensInByStrategy;

  // strategy -> tokenIn -> tokenOut[]
  mapping(address => mapping(address => EnumerableSet.AddressSet)) internal _tokensOutByStrategyAndTokenIn;

  constructor(address _strategyModifier) {
    if (_strategyModifier == address(0)) revert CommonErrors.ZeroAddress();
    _setRoleAdmin(STRATEGY, STRATEGY_MANAGER);
    _setRoleAdmin(STRATEGY_MANAGER, MASTER_ADMIN);
    _setupRole(STRATEGY_MANAGER, _strategyModifier);
  }

  function enabledTrades() external view override returns (EnabledTrade[] memory _enabledTrades) {
    uint256 _totalEnabledTrades;
    for (uint256 i; i < _strategies.values().length; i++) {
      address _strategy = _strategies.at(i);
      address[] memory _tokensIn = _tokensInByStrategy[_strategy].values();
      for (uint256 j; j < _tokensIn.length; j++) {
        address _tokenIn = _tokensIn[j];
        _totalEnabledTrades += _tokensOutByStrategyAndTokenIn[_strategy][_tokenIn].length();
      }
    }
    _enabledTrades = new EnabledTrade[](_totalEnabledTrades);
    uint256 _enabledTradesIndex;
    for (uint256 i; i < _strategies.values().length; i++) {
      address _strategy = _strategies.at(i);
      address[] memory _tokensIn = _tokensInByStrategy[_strategy].values();
      for (uint256 j; j < _tokensIn.length; j++) {
        address _tokenIn = _tokensIn[j];
        address[] memory _tokensOut = _tokensOutByStrategyAndTokenIn[_strategy][_tokenIn].values();
        for (uint256 k; k < _tokensOut.length; k++) {
          _enabledTrades[_enabledTradesIndex] = EnabledTrade(_strategy, _tokenIn, _tokensOut[k]);
          _enabledTradesIndex++;
        }
      }
    }
  }

  function enable(address _tokenIn, address _tokenOut) external override onlyRole(STRATEGY) {
    if (_tokenIn == address(0) || _tokenOut == address(0)) revert CommonErrors.ZeroAddress();
    _strategies.add(msg.sender);
    _tokensInByStrategy[msg.sender].add(_tokenIn);
    if (!_tokensOutByStrategyAndTokenIn[msg.sender][_tokenIn].add(_tokenOut)) revert InvalidTrade();
  }

  function disable(address _tokenIn, address _tokenOut) external override onlyRole(STRATEGY) {
    _disable(msg.sender, _tokenIn, _tokenOut);
  }

  function disableByAdmin(
    address _strategy,
    address _tokenIn,
    address _tokenOut
  ) external override onlyRole(STRATEGY_MANAGER) {
    // strategy.disableTradeCallback() -> tradeFactory.disable()
    ISwapperEnabled(_strategy).disableTradeCallback(_tokenIn, _tokenOut);
  }

  function _disable(
    address _strategy,
    address _tokenIn,
    address _tokenOut
  ) internal {
    if (_tokenIn == address(0) || _tokenOut == address(0)) revert CommonErrors.ZeroAddress();
    if (IERC20(_tokenIn).allowance(msg.sender, address(this)) != 0) revert AllowanceShouldBeZero();
    if (!_tokensOutByStrategyAndTokenIn[_strategy][_tokenIn].remove(_tokenOut)) revert InvalidTrade();
    if (_tokensOutByStrategyAndTokenIn[_strategy][_tokenIn].length() == 0) {
      _tokensInByStrategy[_strategy].remove(_tokenIn);
      if (_tokensInByStrategy[_strategy].length() == 0) {
        _strategies.remove(_strategy);
      }
    }
  }
}

File 4 of 30 : TradeFactoryExecutor.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/utils/math/Math.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';

import '@yearn/contract-utils/contracts/utils/Machinery.sol';

import '../swappers/async/AsyncSwapper.sol';
import '../swappers/async/MultipleAsyncSwapper.sol';
import '../swappers/sync/SyncSwapper.sol';

import './TradeFactoryPositionsHandler.sol';

interface ITradeFactoryExecutor {
  event SyncTradeExecuted(address indexed _strategy, uint256 _receivedAmount, address indexed _swapper);

  event AsyncTradeExecuted(uint256 _receivedAmount, address _swapper);

  event MultipleAsyncTradeExecuted(uint256[] _receivedAmount, address _swapper);

  error InvalidAmountOut();

  struct SyncTradeExecutionDetails {
    address _tokenIn;
    address _tokenOut;
    uint256 _amountIn;
    uint256 _maxSlippage;
  }

  struct AsyncTradeExecutionDetails {
    address _strategy;
    address _tokenIn;
    address _tokenOut;
    uint256 _amount;
    uint256 _minAmountOut;
  }

  // Sync execution
  function execute(SyncTradeExecutionDetails calldata _tradeExecutionDetails, bytes calldata _data) external returns (uint256 _receivedAmount);

  // Async execution
  function execute(
    AsyncTradeExecutionDetails calldata _tradeExecutionDetails,
    address _swapper,
    bytes calldata _data
  ) external returns (uint256 _receivedAmount);

  // Multiple async execution
  function execute(
    AsyncTradeExecutionDetails[] calldata _tradesExecutionDetails,
    address _swapper,
    bytes calldata _data
  ) external;
}

abstract contract TradeFactoryExecutor is ITradeFactoryExecutor, TradeFactoryPositionsHandler, Machinery {
  using SafeERC20 for IERC20;
  using EnumerableSet for EnumerableSet.UintSet;
  using EnumerableSet for EnumerableSet.AddressSet;

  constructor(address _mechanicsRegistry) Machinery(_mechanicsRegistry) {}

  // Machinery
  function setMechanicsRegistry(address __mechanicsRegistry) external virtual override onlyRole(MASTER_ADMIN) {
    _setMechanicsRegistry(__mechanicsRegistry);
  }

  // Execute via sync swapper
  function execute(SyncTradeExecutionDetails calldata _tradeExecutionDetails, bytes calldata _data)
    external
    override
    onlyRole(STRATEGY)
    returns (uint256 _receivedAmount)
  {
    address _swapper = strategySyncSwapper[msg.sender];
    if (_tradeExecutionDetails._tokenIn == address(0) || _tradeExecutionDetails._tokenOut == address(0)) revert CommonErrors.ZeroAddress();
    if (_tradeExecutionDetails._amountIn == 0) revert CommonErrors.ZeroAmount();
    if (_tradeExecutionDetails._maxSlippage == 0) revert CommonErrors.ZeroSlippage();
    IERC20(_tradeExecutionDetails._tokenIn).safeTransferFrom(msg.sender, _swapper, _tradeExecutionDetails._amountIn);
    uint256 _preSwapBalanceOut = IERC20(_tradeExecutionDetails._tokenOut).balanceOf(msg.sender);
    ISyncSwapper(_swapper).swap(
      msg.sender,
      _tradeExecutionDetails._tokenIn,
      _tradeExecutionDetails._tokenOut,
      _tradeExecutionDetails._amountIn,
      _tradeExecutionDetails._maxSlippage,
      _data
    );
    _receivedAmount = IERC20(_tradeExecutionDetails._tokenOut).balanceOf(msg.sender) - _preSwapBalanceOut;
    emit SyncTradeExecuted(msg.sender, _receivedAmount, _swapper);
  }

  // Execute via async swapper
  function execute(
    AsyncTradeExecutionDetails calldata _tradeExecutionDetails,
    address _swapper,
    bytes calldata _data
  ) external override onlyMechanic returns (uint256 _receivedAmount) {
    if (
      !_tokensOutByStrategyAndTokenIn[_tradeExecutionDetails._strategy][_tradeExecutionDetails._tokenIn].contains(
        _tradeExecutionDetails._tokenOut
      )
    ) revert InvalidTrade();
    if (!_swappers.contains(_swapper)) revert InvalidSwapper();
    uint256 _amount = _tradeExecutionDetails._amount != 0
      ? _tradeExecutionDetails._amount
      : IERC20(_tradeExecutionDetails._tokenIn).balanceOf(_tradeExecutionDetails._strategy);
    IERC20(_tradeExecutionDetails._tokenIn).safeTransferFrom(_tradeExecutionDetails._strategy, _swapper, _amount);
    uint256 _preSwapBalanceOut = IERC20(_tradeExecutionDetails._tokenOut).balanceOf(_tradeExecutionDetails._strategy);
    IAsyncSwapper(_swapper).swap(
      _tradeExecutionDetails._strategy,
      _tradeExecutionDetails._tokenIn,
      _tradeExecutionDetails._tokenOut,
      _amount,
      _tradeExecutionDetails._minAmountOut,
      _data
    );
    _receivedAmount = IERC20(_tradeExecutionDetails._tokenOut).balanceOf(_tradeExecutionDetails._strategy) - _preSwapBalanceOut;
    if (_receivedAmount < _tradeExecutionDetails._minAmountOut) revert InvalidAmountOut();
    emit AsyncTradeExecuted(_receivedAmount, _swapper);
  }

  function execute(
    AsyncTradeExecutionDetails[] calldata _tradesExecutionDetails,
    address _swapper,
    bytes calldata _data
  ) external override onlyMechanic {
    // Balance out holder will firstly have the pre swap balance out of each strategy
    uint256[] memory _balanceOutHolder = new uint256[](_tradesExecutionDetails.length);
    if (!_swappers.contains(_swapper)) revert InvalidSwapper();
    for (uint256 i; i < _tradesExecutionDetails.length; i++) {
      if (
        !_tokensOutByStrategyAndTokenIn[_tradesExecutionDetails[i]._strategy][_tradesExecutionDetails[i]._tokenIn].contains(
          _tradesExecutionDetails[i]._tokenOut
        )
      ) revert InvalidTrade();
      uint256 _amount = _tradesExecutionDetails[i]._amount != 0
        ? _tradesExecutionDetails[i]._amount
        : IERC20(_tradesExecutionDetails[i]._tokenIn).balanceOf(_tradesExecutionDetails[i]._strategy);
      IERC20(_tradesExecutionDetails[i]._tokenIn).safeTransferFrom(_tradesExecutionDetails[i]._strategy, _swapper, _amount);
      _balanceOutHolder[i] = IERC20(_tradesExecutionDetails[i]._tokenOut).balanceOf(_tradesExecutionDetails[i]._strategy);
    }
    IMultipleAsyncSwapper(_swapper).swapMultiple(_data);
    for (uint256 i; i < _tradesExecutionDetails.length; i++) {
      // Balance out holder will now store the total received amount of token out per strat
      _balanceOutHolder[i] = IERC20(_tradesExecutionDetails[i]._tokenOut).balanceOf(_tradesExecutionDetails[i]._strategy) - _balanceOutHolder[i];
      if (_balanceOutHolder[i] < _tradesExecutionDetails[i]._minAmountOut) revert InvalidAmountOut();
    }
    emit MultipleAsyncTradeExecuted(_balanceOutHolder, _swapper);
  }
}

File 5 of 30 : EnumerableSet.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

File 6 of 30 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 7 of 30 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 8 of 30 : ICollectableDust.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

interface ICollectableDust {
  event DustSent(address _to, address token, uint256 amount);

  function sendDust(
    address _to,
    address _token,
    uint256 _amount
  ) external;
}

File 9 of 30 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 10 of 30 : TradeFactorySwapperHandler.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/access/AccessControl.sol';
import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';

import '../swappers/Swapper.sol';

import './TradeFactoryAccessManager.sol';

interface ITradeFactorySwapperHandler {
  error NotAsyncSwapper();
  error NotSyncSwapper();
  error InvalidSwapper();
  error SwapperInUse();

  function strategySyncSwapper(address _strategy) external view returns (address _swapper);

  function swappers() external view returns (address[] memory _swappersList);

  function isSwapper(address _swapper) external view returns (bool _isSwapper);

  function swapperStrategies(address _swapper) external view returns (address[] memory _strategies);

  function setStrategySyncSwapper(address _strategy, address _swapper) external;

  function addSwappers(address[] memory __swappers) external;

  function removeSwappers(address[] memory __swappers) external;
}

abstract contract TradeFactorySwapperHandler is ITradeFactorySwapperHandler, TradeFactoryAccessManager {
  using EnumerableSet for EnumerableSet.AddressSet;

  bytes32 public constant SWAPPER_ADDER = keccak256('SWAPPER_ADDER');
  bytes32 public constant SWAPPER_SETTER = keccak256('SWAPPER_SETTER');

  // swappers list
  EnumerableSet.AddressSet internal _swappers;
  // swapper -> strategy list (useful to know if we can safely deprecate a swapper)
  mapping(address => EnumerableSet.AddressSet) internal _swapperStrategies;
  // strategy -> sync swapper
  mapping(address => address) public override strategySyncSwapper;

  constructor(address _swapperAdder, address _swapperSetter) {
    if (_swapperAdder == address(0) || _swapperSetter == address(0)) revert CommonErrors.ZeroAddress();
    _setRoleAdmin(SWAPPER_ADDER, MASTER_ADMIN);
    _setRoleAdmin(SWAPPER_SETTER, MASTER_ADMIN);
    _setupRole(SWAPPER_ADDER, _swapperAdder);
    _setupRole(SWAPPER_SETTER, _swapperSetter);
  }

  function isSwapper(address _swapper) external view override returns (bool _isSwapper) {
    _isSwapper = _swappers.contains(_swapper);
  }

  function swappers() external view override returns (address[] memory _swappersList) {
    _swappersList = _swappers.values();
  }

  function swapperStrategies(address _swapper) external view override returns (address[] memory _strategies) {
    _strategies = _swapperStrategies[_swapper].values();
  }

  function setStrategySyncSwapper(address _strategy, address _swapper) external override onlyRole(SWAPPER_SETTER) {
    if (_strategy == address(0) || _swapper == address(0)) revert CommonErrors.ZeroAddress();
    // we check that swapper being added is async
    if (ISwapper(_swapper).SWAPPER_TYPE() != ISwapper.SwapperType.SYNC) revert NotSyncSwapper();
    // we check that swapper is not already added
    if (!_swappers.contains(_swapper)) revert InvalidSwapper();
    // remove strategy from previous swapper if any
    if (strategySyncSwapper[_strategy] != address(0)) _swapperStrategies[strategySyncSwapper[_strategy]].remove(_strategy);
    // set new strategy's sync swapper
    strategySyncSwapper[_strategy] = _swapper;
    // add strategy into new swapper
    _swapperStrategies[_swapper].add(_strategy);
  }

  function addSwappers(address[] memory __swappers) external override onlyRole(SWAPPER_ADDER) {
    for (uint256 i; i < __swappers.length; i++) {
      if (__swappers[i] == address(0)) revert CommonErrors.ZeroAddress();
      _swappers.add(__swappers[i]);
    }
  }

  function removeSwappers(address[] memory __swappers) external override onlyRole(SWAPPER_ADDER) {
    for (uint256 i; i < __swappers.length; i++) {
      if (_swapperStrategies[__swappers[i]].length() > 0) revert SwapperInUse();
      _swappers.remove(__swappers[i]);
    }
  }
}

File 11 of 30 : ISwapperEnabled.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.4 <0.9.0;

interface ISwapperEnabled {
  error NotTradeFactory();

  function tradeFactory() external returns (address _tradeFactory);

  function swapper() external returns (string memory _swapper);

  function setSwapper(string calldata _swapper, bool _migrateSwaps) external;

  function setTradeFactory(address _tradeFactory) external;

  function enableTrade(address _tokenIn, address _tokenOut) external;

  function disableTrade(address _tokenIn, address _tokenOut) external;

  function disableTradeCallback(address _tokenIn, address _tokenOut) external;
}

File 12 of 30 : AccessControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    function _grantRole(bytes32 role, address account) private {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

File 13 of 30 : Swapper.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

import '@yearn/contract-utils/contracts/utils/Governable.sol';
import '@yearn/contract-utils/contracts/utils/CollectableDust.sol';

import '../libraries/CommonErrors.sol';

interface ISwapper {
  event TradeFactorySet(address _tradeFactory);

  enum SwapperType {
    ASYNC,
    SYNC
  }

  // solhint-disable-next-line func-name-mixedcase
  function SWAPPER_TYPE() external view returns (SwapperType);

  function tradeFactory() external view returns (address);

  function setTradeFactory(address _tradeFactory) external;
}

abstract contract Swapper is ISwapper, Governable, CollectableDust {
  using SafeERC20 for IERC20;

  // solhint-disable-next-line var-name-mixedcase
  address public override tradeFactory;

  constructor(address _tradeFactory) {
    if (_tradeFactory == address(0)) revert CommonErrors.ZeroAddress();
    tradeFactory = _tradeFactory;
  }

  function setTradeFactory(address _tradeFactory) external override onlyGovernor {
    if (_tradeFactory == address(0)) revert CommonErrors.ZeroAddress();
    tradeFactory = _tradeFactory;
    emit TradeFactorySet(_tradeFactory);
  }

  modifier onlyTradeFactory() {
    if (msg.sender != tradeFactory) revert CommonErrors.NotAuthorized();
    _;
  }

  function sendDust(
    address _to,
    address _token,
    uint256 _amount
  ) external virtual override onlyGovernor {
    _sendDust(_to, _token, _amount);
  }
}

File 14 of 30 : TradeFactoryAccessManager.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/access/AccessControl.sol';

import '../libraries/CommonErrors.sol';

abstract contract TradeFactoryAccessManager is AccessControl {
  bytes32 public constant MASTER_ADMIN = keccak256('MASTER_ADMIN');

  constructor(address _masterAdmin) {
    if (_masterAdmin == address(0)) revert CommonErrors.ZeroAddress();
    _setRoleAdmin(MASTER_ADMIN, MASTER_ADMIN);
    _setupRole(MASTER_ADMIN, _masterAdmin);
  }
}

File 15 of 30 : IAccessControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

File 16 of 30 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 17 of 30 : Strings.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 18 of 30 : ERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 19 of 30 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 20 of 30 : Governable.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '../interfaces/utils/IGovernable.sol';

contract Governable is IGovernable {
  address public override governor;
  address public override pendingGovernor;

  constructor(address _governor) {
    require(_governor != address(0), 'governable/governor-should-not-be-zero-address');
    governor = _governor;
  }

  function setPendingGovernor(address _pendingGovernor) external virtual override onlyGovernor {
    _setPendingGovernor(_pendingGovernor);
  }

  function acceptGovernor() external virtual override onlyPendingGovernor {
    _acceptGovernor();
  }

  function _setPendingGovernor(address _pendingGovernor) internal {
    require(_pendingGovernor != address(0), 'governable/pending-governor-should-not-be-zero-addres');
    pendingGovernor = _pendingGovernor;
    emit PendingGovernorSet(_pendingGovernor);
  }

  function _acceptGovernor() internal {
    governor = pendingGovernor;
    pendingGovernor = address(0);
    emit GovernorAccepted();
  }

  function isGovernor(address _account) public view override returns (bool _isGovernor) {
    return _account == governor;
  }

  modifier onlyGovernor() {
    require(isGovernor(msg.sender), 'governable/only-governor');
    _;
  }

  modifier onlyPendingGovernor() {
    require(msg.sender == pendingGovernor, 'governable/only-pending-governor');
    _;
  }
}

File 21 of 30 : CommonErrors.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

library CommonErrors {
  error ZeroAddress();
  error NotAuthorized();
  error ZeroAmount();
  error ZeroSlippage();
  error IncorrectSwapInformation();
}

File 22 of 30 : IGovernable.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

interface IGovernable {
  event PendingGovernorSet(address pendingGovernor);
  event GovernorAccepted();

  function setPendingGovernor(address _pendingGovernor) external;

  function acceptGovernor() external;

  function governor() external view returns (address _governor);

  function pendingGovernor() external view returns (address _pendingGovernor);

  function isGovernor(address _account) external view returns (bool _isGovernor);
}

File 23 of 30 : Math.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a / b + (a % b == 0 ? 0 : 1);
    }
}

File 24 of 30 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

File 25 of 30 : Machinery.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '../interfaces/utils/IMachinery.sol';
import '../interfaces/mechanics/IMechanicsRegistry.sol';

contract Machinery is IMachinery {
  using EnumerableSet for EnumerableSet.AddressSet;

  IMechanicsRegistry internal _mechanicsRegistry;

  constructor(address __mechanicsRegistry) {
    _setMechanicsRegistry(__mechanicsRegistry);
  }

  modifier onlyMechanic() {
    require(_mechanicsRegistry.isMechanic(msg.sender), 'Machinery: not mechanic');
    _;
  }

  function setMechanicsRegistry(address __mechanicsRegistry) external virtual override {
    _setMechanicsRegistry(__mechanicsRegistry);
  }

  function _setMechanicsRegistry(address __mechanicsRegistry) internal {
    _mechanicsRegistry = IMechanicsRegistry(__mechanicsRegistry);
  }

  // View helpers
  function mechanicsRegistry() external view override returns (address _mechanicRegistry) {
    return address(_mechanicsRegistry);
  }

  function isMechanic(address _mechanic) public view override returns (bool _isMechanic) {
    return _mechanicsRegistry.isMechanic(_mechanic);
  }
}

File 26 of 30 : AsyncSwapper.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '../Swapper.sol';

interface IAsyncSwapper is ISwapper {
  function swap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _minAmountOut,
    bytes calldata _data
  ) external;
}

abstract contract AsyncSwapper is IAsyncSwapper, Swapper {
  // solhint-disable-next-line var-name-mixedcase
  SwapperType public constant override SWAPPER_TYPE = SwapperType.ASYNC;

  constructor(address _governor, address _tradeFactory) Governable(_governor) Swapper(_tradeFactory) {}

  function _assertPreSwap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _minAmountOut
  ) internal pure {
    if (_receiver == address(0) || _tokenIn == address(0) || _tokenOut == address(0)) revert CommonErrors.ZeroAddress();
    if (_amountIn == 0) revert CommonErrors.ZeroAmount();
    if (_minAmountOut == 0) revert CommonErrors.ZeroAmount();
  }

  function _executeSwap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    bytes calldata _data
  ) internal virtual;

  function swap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _minAmountOut,
    bytes calldata _data
  ) external virtual override onlyTradeFactory {
    _assertPreSwap(_receiver, _tokenIn, _tokenOut, _amountIn, _minAmountOut);
    _executeSwap(_receiver, _tokenIn, _tokenOut, _amountIn, _data);
  }
}

File 27 of 30 : MultipleAsyncSwapper.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import './AsyncSwapper.sol';

interface IMultipleAsyncSwapper is IAsyncSwapper {
  function swapMultiple(bytes calldata _data) external;
}

abstract contract MultipleAsyncSwapper is IMultipleAsyncSwapper, AsyncSwapper {
  constructor(address _governor, address _tradeFactory) AsyncSwapper(_governor, _tradeFactory) {}
}

File 28 of 30 : SyncSwapper.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

import '../Swapper.sol';

interface ISyncSwapper is ISwapper {
  // solhint-disable-next-line func-name-mixedcase
  function SLIPPAGE_PRECISION() external view returns (uint256);

  function swap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _maxSlippage,
    bytes calldata _data
  ) external;
}

abstract contract SyncSwapper is ISyncSwapper, Swapper {
  // solhint-disable-next-line var-name-mixedcase
  uint256 public immutable override SLIPPAGE_PRECISION = 10000; // 1 is 0.0001%, 1_000 is 0.1%

  // solhint-disable-next-line var-name-mixedcase
  SwapperType public constant override SWAPPER_TYPE = SwapperType.SYNC;

  constructor(address _governor, address _tradeFactory) Governable(_governor) Swapper(_tradeFactory) {}

  function _assertPreSwap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256
  ) internal pure {
    if (_receiver == address(0) || _tokenIn == address(0) || _tokenOut == address(0)) revert CommonErrors.ZeroAddress();
    if (_amountIn == 0) revert CommonErrors.ZeroAmount();
  }

  function _executeSwap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _maxSlippage,
    bytes calldata _data
  ) internal virtual;

  function swap(
    address _receiver,
    address _tokenIn,
    address _tokenOut,
    uint256 _amountIn,
    uint256 _maxSlippage,
    bytes calldata _data
  ) external virtual override onlyTradeFactory {
    _assertPreSwap(_receiver, _tokenIn, _tokenOut, _amountIn, _maxSlippage);
    _executeSwap(_receiver, _tokenIn, _tokenOut, _amountIn, _maxSlippage, _data);
  }
}

File 29 of 30 : IMachinery.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

interface IMachinery {
  // View helpers
  function mechanicsRegistry() external view returns (address _mechanicsRegistry);

  function isMechanic(address mechanic) external view returns (bool _isMechanic);

  // Setters
  function setMechanicsRegistry(address _mechanicsRegistry) external;
}

File 30 of 30 : IMechanicsRegistry.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4 <0.9.0;

interface IMechanicsRegistry {
  event MechanicAdded(address _mechanic);
  event MechanicRemoved(address _mechanic);

  function addMechanic(address _mechanic) external;

  function removeMechanic(address _mechanic) external;

  function mechanics() external view returns (address[] memory _mechanicsList);

  function isMechanic(address mechanic) external view returns (bool _isMechanic);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_masterAdmin","type":"address"},{"internalType":"address","name":"_swapperAdder","type":"address"},{"internalType":"address","name":"_swapperSetter","type":"address"},{"internalType":"address","name":"_strategyModifier","type":"address"},{"internalType":"address","name":"_mechanicsRegistry","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AllowanceShouldBeZero","type":"error"},{"inputs":[],"name":"InvalidAmountOut","type":"error"},{"inputs":[],"name":"InvalidSwapper","type":"error"},{"inputs":[],"name":"InvalidTrade","type":"error"},{"inputs":[],"name":"NotAsyncSwapper","type":"error"},{"inputs":[],"name":"NotSyncSwapper","type":"error"},{"inputs":[],"name":"SwapperInUse","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"inputs":[],"name":"ZeroAmount","type":"error"},{"inputs":[],"name":"ZeroSlippage","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_receivedAmount","type":"uint256"},{"indexed":false,"internalType":"address","name":"_swapper","type":"address"}],"name":"AsyncTradeExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"DustSent","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256[]","name":"_receivedAmount","type":"uint256[]"},{"indexed":false,"internalType":"address","name":"_swapper","type":"address"}],"name":"MultipleAsyncTradeExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_strategy","type":"address"},{"indexed":false,"internalType":"uint256","name":"_receivedAmount","type":"uint256"},{"indexed":true,"internalType":"address","name":"_swapper","type":"address"}],"name":"SyncTradeExecuted","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ETH_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MASTER_ADMIN","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STRATEGY","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STRATEGY_MANAGER","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SWAPPER_ADDER","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SWAPPER_SETTER","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"__swappers","type":"address[]"}],"name":"addSwappers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"}],"name":"disable","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"}],"name":"disableByAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"}],"name":"enable","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enabledTrades","outputs":[{"components":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"}],"internalType":"struct ITradeFactoryPositionsHandler.EnabledTrade[]","name":"_enabledTrades","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint256","name":"_minAmountOut","type":"uint256"}],"internalType":"struct ITradeFactoryExecutor.AsyncTradeExecutionDetails","name":"_tradeExecutionDetails","type":"tuple"},{"internalType":"address","name":"_swapper","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"execute","outputs":[{"internalType":"uint256","name":"_receivedAmount","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"},{"internalType":"uint256","name":"_amountIn","type":"uint256"},{"internalType":"uint256","name":"_maxSlippage","type":"uint256"}],"internalType":"struct ITradeFactoryExecutor.SyncTradeExecutionDetails","name":"_tradeExecutionDetails","type":"tuple"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"execute","outputs":[{"internalType":"uint256","name":"_receivedAmount","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"address","name":"_tokenIn","type":"address"},{"internalType":"address","name":"_tokenOut","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint256","name":"_minAmountOut","type":"uint256"}],"internalType":"struct ITradeFactoryExecutor.AsyncTradeExecutionDetails[]","name":"_tradesExecutionDetails","type":"tuple[]"},{"internalType":"address","name":"_swapper","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"execute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_mechanic","type":"address"}],"name":"isMechanic","outputs":[{"internalType":"bool","name":"_isMechanic","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_swapper","type":"address"}],"name":"isSwapper","outputs":[{"internalType":"bool","name":"_isSwapper","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mechanicsRegistry","outputs":[{"internalType":"address","name":"_mechanicRegistry","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"__swappers","type":"address[]"}],"name":"removeSwappers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"sendDust","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"__mechanicsRegistry","type":"address"}],"name":"setMechanicsRegistry","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"address","name":"_swapper","type":"address"}],"name":"setStrategySyncSwapper","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"strategySyncSwapper","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_swapper","type":"address"}],"name":"swapperStrategies","outputs":[{"internalType":"address[]","name":"_strategies","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swappers","outputs":[{"internalType":"address[]","name":"_swappersList","type":"address[]"}],"stateMutability":"view","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd58030000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd58030000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd58030000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd58030000000000000000000000007f462b92f92114a2d57a03e5ae2db5da28b77d73

-----Decoded View---------------
Arg [0] : _masterAdmin (address): 0x9f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [1] : _swapperAdder (address): 0x9f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [2] : _swapperSetter (address): 0x9f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [3] : _strategyModifier (address): 0x9f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [4] : _mechanicsRegistry (address): 0x7f462b92f92114a2d57a03e5ae2db5da28b77d73

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [1] : 0000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [2] : 0000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [3] : 0000000000000000000000009f2a061d6fef20ad3a656e23fd9c814b75fd5803
Arg [4] : 0000000000000000000000007f462b92f92114a2d57a03e5ae2db5da28b77d73


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
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