BridgersSwap

[
  {
    "inputs": [],
    "stateMutability": "nonpayable",
    "type": "constructor"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "previousOwner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "OwnershipTransferred",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "address",
        "name": "fromToken",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "string",
        "name": "toToken",
        "type": "string"
      },
      {
        "indexed": false,
        "internalType": "address",
        "name": "sender",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "string",
        "name": "destination",
        "type": "string"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "fromAmount",
        "type": "uint256"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "minReturnAmount",
        "type": "uint256"
      }
    ],
    "name": "Swap",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "string",
        "name": "toToken",
        "type": "string"
      },
      {
        "indexed": false,
        "internalType": "address",
        "name": "sender",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "string",
        "name": "destination",
        "type": "string"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "fromAmount",
        "type": "uint256"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "minReturnAmount",
        "type": "uint256"
      }
    ],
    "name": "SwapEth",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "WithdrawETH",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "address",
        "name": "token",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "Withdtraw",
    "type": "event"
  },
  {
    "inputs": [],
    "name": "name",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "renounceOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "fromToken",
        "type": "address"
      },
      {
        "internalType": "string",
        "name": "toToken",
        "type": "string"
      },
      {
        "internalType": "string",
        "name": "destination",
        "type": "string"
      },
      {
        "internalType": "uint256",
        "name": "fromAmount",
        "type": "uint256"
      },
      {
        "internalType": "uint256",
        "name": "minReturnAmount",
        "type": "uint256"
      }
    ],
    "name": "swap",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "string",
        "name": "toToken",
        "type": "string"
      },
      {
        "internalType": "string",
        "name": "destination",
        "type": "string"
      },
      {
        "internalType": "uint256",
        "name": "minReturnAmount",
        "type": "uint256"
      }
    ],
    "name": "swapEth",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "symbol",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "transferOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "token",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "destination",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "withdraw",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "destination",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "withdrawETH",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "stateMutability": "payable",
    "type": "receive"
  }
]

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./Ownable.sol";
import "./ReentrancyGuard.sol";
import "./SafeMath.sol";
import "./TransferHelper.sol";


contract BridgersSwap is ReentrancyGuard, Ownable {
    using SafeMath for uint256;

    string public name;

    string public symbol;

    event Swap(
        address fromToken,
        string toToken,
        address sender,
        string destination,
        uint256 fromAmount,
        uint256 minReturnAmount
    );

    
    event SwapEth(
        string toToken,
        address sender,
        string destination,
        uint256 fromAmount,
        uint256 minReturnAmount
    );

    event WithdrawETH(uint256 amount);

    event Withdtraw(address token, uint256 amount);

    constructor() {
        name = "Bridgers Swap1.1";
        symbol = "BridgersSwap";
    }

    
    function swap(
        address fromToken,
        string memory toToken,
        string memory destination,
        uint256 fromAmount,
        uint256 minReturnAmount
    ) external nonReentrant {
        require(fromToken != address(0), "FROMTOKEN_CANT_T_BE_0"); 
        require(fromAmount > 0, "FROM_TOKEN_AMOUNT_MUST_BE_MORE_THAN_0");
        uint256 _inputAmount;
        uint256 _fromTokenBalanceOrigin = IERC20(fromToken).balanceOf(address(this));
        TransferHelper.safeTransferFrom(fromToken, msg.sender, address(this), fromAmount);
        uint256 _fromTokenBalanceNew = IERC20(fromToken).balanceOf(address(this));
        _inputAmount = _fromTokenBalanceNew.sub(_fromTokenBalanceOrigin);
        require(_inputAmount > 0, "NO_FROM_TOKEN_TRANSFER_TO_THIS_CONTRACT");
        emit Swap(fromToken, toToken, msg.sender, destination, fromAmount, minReturnAmount);
    }

    
    function swapEth(string memory toToken, string memory destination, uint256 minReturnAmount
    ) external payable nonReentrant {
        uint256 _ethAmount = msg.value; 
        require(_ethAmount > 0, "ETH_AMOUNT_MUST_BE_MORE_THAN_0");
        emit SwapEth(toToken, msg.sender, destination, _ethAmount, minReturnAmount);
    }

    function withdrawETH(address destination, uint256 amount) external onlyOwner {
        require(destination != address(0), "DESTINATION_CANNT_BE_0_ADDRESS");
        uint256 balance = address(this).balance;
        require(balance >= amount, "AMOUNT_CANNT_MORE_THAN_BALANCE");
        TransferHelper.safeTransferETH(destination, amount);
        emit WithdrawETH(amount);
    }

    function withdraw(address token, address destination, uint256 amount) external onlyOwner {
        require(destination != address(0), "DESTINATION_CANNT_BE_0_ADDRESS");
        require(token != address(0), "TOKEN_MUST_NOT_BE_0");
        uint256 balance = IERC20(token).balanceOf(address(this));
        require(balance >= amount, "AMOUNT_CANNT_MORE_THAN_BALANCE");
        TransferHelper.safeTransfer(token, destination, amount);
        emit Withdtraw(token, amount);
    }

    receive() external payable {}
}