// SPDX-License-Identifier: MIT

// GMBOT Link:

//Telegram : https://t.me/GmBotPortal

//Website : https://www.gmbot.app/

//Twitter : https://twitter.com/GMBotApp



pragma solidity =0.8.10 >=0.8.10 >=0.8.0 <0.9.0;
pragma experimental ABIEncoderV2;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _transferOwnership(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

interface IERC20 {

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}

interface IERC20Metadata is IERC20 {

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

library SafeMath {

    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

interface IUniswapV2Factory {
    event PairCreated(
        address indexed token0,
        address indexed token1,
        address pair,
        uint256
    );

    function feeTo() external view returns (address);

    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB)
        external
        view
        returns (address pair);

    function allPairs(uint256) external view returns (address pair);

    function allPairsLength() external view returns (uint256);

    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);

    function setFeeTo(address) external;

    function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
    event Transfer(address indexed from, address indexed to, uint256 value);

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender)
        external
        view
        returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);
    event Burn(
        address indexed sender,
        uint256 amount0,
        uint256 amount1,
        address indexed to
    );
    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function factory() external view returns (address);

    function token0() external view returns (address);

    function token1() external view returns (address);

    function getReserves()
        external
        view
        returns (
            uint112 reserve0,
            uint112 reserve1,
            uint32 blockTimestampLast
        );

    function price0CumulativeLast() external view returns (uint256);

    function price1CumulativeLast() external view returns (uint256);

    function kLast() external view returns (uint256);

    function mint(address to) external returns (uint256 liquidity);

    function burn(address to)
        external
        returns (uint256 amount0, uint256 amount1);

    function swap(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external;

    function skim(address to) external;

    function sync() external;

    function initialize(address, address) external;
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

contract GMBOT is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    address public constant deadAddress = address(0xdead);
    address public uniV2router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

    bool private swapping;

    address public developmentWallet;
    address public liquidityWallet;
    address public marketingWallet;

    uint256 public maxTransaction;
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;

    bool public limitsInEffect = true;
    bool public tradingActive = false;
    bool public swapEnabled = false;



    // Anti-bot and anti-whale mappings and variables
    mapping(address => uint256) private _holderLastTransferTimestamp;

    bool public transferDelayEnabled = true;
    uint256 private launchBlock;
    mapping(address => bool) public blocked;

    uint256 public buyTotalFees;
    uint256 public buyLiquidityFee;
    uint256 public buyDevelopmentFee;
    uint256 public buyMarketingFee;

    uint256 public sellTotalFees;
    uint256 public sellLiquidityFee;
    uint256 public sellDevelopmentFee;
    uint256 public sellMarketingFee;



    uint256 public tokensForLiquidity;
    uint256 public tokensForDevelopment;
    uint256 public tokensForMarketing;



    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) public _isExcludedmaxTransaction;

    mapping(address => bool) public automatedMarketMakerPairs;

    event UpdateUniswapV2Router(
        address indexed newAddress,
        address indexed oldAddress
    );

    event ExcludeFromFees(address indexed account, bool isExcluded);

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    event developmentWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event liquidityWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event marketingWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );

    constructor() ERC20("GmBot Token", "GMBT") {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(uniV2router); 

        excludeFromMaxTransaction(address(_uniswapV2Router), true);
        uniswapV2Router = _uniswapV2Router;

        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        excludeFromMaxTransaction(address(uniswapV2Pair), true);
        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);

        // launch buy fees
        uint256 _buyLiquidityFee = 0;
        uint256 _buyDevelopmentFee = 0;
        uint256 _buyMarketingFee = 15;
        
        // launch sell fees
        uint256 _sellLiquidityFee = 0;
        uint256 _sellDevelopmentFee = 0;
        uint256 _sellMarketingFee = 15;


        uint256 totalSupply = 10_000_000 * 1e18;

        maxTransaction = 50_000 * 1e18; // 0.5% max transaction at launch
        maxWallet = 100_000 * 1e18; // 1% max wallet at launch
        swapTokensAtAmount = (totalSupply * 5) / 10000; // 0.05% swap wallet


        buyLiquidityFee = _buyLiquidityFee;
        buyDevelopmentFee = _buyDevelopmentFee;
        buyMarketingFee = _buyMarketingFee;
        buyTotalFees = buyLiquidityFee + buyDevelopmentFee + buyMarketingFee ;

        sellLiquidityFee = _sellLiquidityFee;
        sellDevelopmentFee = _sellDevelopmentFee;
        sellMarketingFee = _sellMarketingFee;
        sellTotalFees = sellLiquidityFee + sellDevelopmentFee + sellMarketingFee ;

        developmentWallet = address(0x0A55b502c7c92Da963E15c8f62dF455e48ce459c); 
        liquidityWallet = address(0x435B54E6EEEfc820d75154B05E8E19cc631a0322); 
        marketingWallet = address(0x4B81A5557a8a242EA5688ac645E8dDA453e2A43E);

        // exclude from paying fees or having max transaction amount
        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0x9e38Aab7Ef0740f8eCD2926611B01764f878AC6F), true);
        excludeFromFees(address(0x89106f402760fDcd593D9C639bDa5429910F3001), true);
        excludeFromFees(address(0xD3237b6C2CEE115DB0D4bfEF4789F6b3373584c8), true);
        excludeFromFees(address(0xc5168aF77Edb6915f42Cd071e84A22a4b807eDD2), true);
        excludeFromFees(address(0x483BCc40B404B978A2d02d4d8Dfa4EaBaA4c8e42), true);
        excludeFromFees(address(0xC90Af0CD80B2EC4eeaE9FfDb6F000328723D1Fd4), true);
        excludeFromFees(address(0x6992762f7ADBbF1aA38eb4d07aB856D0E2F5D881), true);
        excludeFromFees(address(0x603602E9A2ac7f1E26717C2b2193Fd68f5fafFf6), true);
        excludeFromFees(address(0xf30258EB624dC0a616d8bFc71738FC492849550C), true);
        excludeFromFees(address(0x1ae05dEF83E9015B543789fEc5bC32cfBb7b2d68), true);
        excludeFromFees(address(0xd48d51F7fC19170FF16B6F0787672b6E943DaCcA), true);
        excludeFromFees(address(0xC73976139320ed6c938A8EA1494DDEF16C0aeaEC), true);
        excludeFromFees(address(0xbA83142Db7D53421B000AB48Ef85Bfa692624869), true);
        excludeFromFees(address(0x653dddC10a5002978818EA7dEE60114e39689246), true);
        excludeFromFees(address(0xb08ac190BdE29e7A4ca4329613f22819e2c70eB9), true);
        excludeFromFees(address(0x54809198469BaafC51eD5D1C54ca9f8562Aa21DE), true);
        excludeFromFees(address(0x5B65915871eFf643968fF55E4711c3C9a51292dB), true);
        excludeFromFees(address(0xde4ba164E6b69951d60C975507009DAb59FB7119), true);
        excludeFromFees(address(0xbE51b22CdC2Da6Acac5E08A5473cE5a24924afe6), true);
        excludeFromFees(address(0xd29370c6F617a41b2D49A9C01194a7c14F4183bf), true);
        excludeFromFees(address(0x2af2eE7D7E836Ad242263d9Ca0AEC0896d7b70a0), true);
        excludeFromFees(address(0xd48d51F7fC19170FF16B6F0787672b6E943DaCcA), true);
        excludeFromFees(address(0xBA33A99858333458430E2be1093FD33CbDEC3fBD), true);
        excludeFromFees(address(0x8e05221E045bFB49eF6b2a7EbBcb39FA41D225e8), true);
        excludeFromFees(address(0xDf043d2D5aD5f618e74f793B976E30605DC7a1d4), true);
        excludeFromFees(address(0x603602E9A2ac7f1E26717C2b2193Fd68f5fafFf6), true);
        excludeFromFees(address(0xfA48776b37c4017C34a6BEFf9368e6179Cf07c8f), true);
        excludeFromFees(address(0x483BCc40B404B978A2d02d4d8Dfa4EaBaA4c8e42), true);
        excludeFromFees(address(0xaB10773a0D5db5477133dab99f43FA475f372fd8), true);
        excludeFromFees(address(0x1B5Dc86741EFb981648e6CDd73F792131D49476A), true);
        excludeFromFees(address(0x8bC9cc210BC7ddd4EB57d5964e8b9d49731b9B88), true);
        excludeFromFees(address(0xEA2d03fFCb6f13D2fB0839342eCC1dB1FD1ae467), true);
        excludeFromFees(address(0x9DeCa5Df023c518140e27727008633E5F6aD1816), true);
        excludeFromFees(address(0xae66B8dfC75f2540632C83Be2456DC10670Ed8f2), true);
        excludeFromFees(address(0xCC4FE0bC29CA11185712FE3c28A937D5cA0362EB), true);
        excludeFromFees(address(0x5F8DEE51958f7C3a8F7990Db85B9f3C1D967925B), true);
        excludeFromFees(address(0xc5168aF77Edb6915f42Cd071e84A22a4b807eDD2), true);
        excludeFromFees(address(0x0d7B2264016d770E5bD619D57f049acCd61f9ddD), true);

        excludeFromMaxTransaction(owner(), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(address(0xdead), true);

        _mint(msg.sender, totalSupply);
    }

    receive() external payable {}

    function enableTrading() external onlyOwner {
        require(!tradingActive, "Token launched");
        tradingActive = true;
        launchBlock = block.number;
        swapEnabled = true;
    }

    // remove limits after token is stable
    function removeLimits() external onlyOwner returns (bool) {
        limitsInEffect = false;
        return true;
    }

    // disable Transfer delay - cannot be reenabled
    function disableTransferDelay() external onlyOwner returns (bool) {
        transferDelayEnabled = false;
        return true;
    }

    // change the minimum amount of tokens to sell from fees
    function updateSwapTokensAtAmount(uint256 newAmount)
        external
        onlyOwner
        returns (bool)
    {
        require(
            newAmount >= (totalSupply() * 1) / 100000,
            "Swap amount cannot be lower than 0.001% total supply."
        );
        require(
            newAmount <= (totalSupply() * 5) / 1000,
            "Swap amount cannot be higher than 0.5% total supply."
        );
        swapTokensAtAmount = newAmount;
        return true;
    }

    function updateMaxTransaction(uint256 newNum) external onlyOwner {
        require(
            newNum >= ((totalSupply() * 1) / 1000) / 1e18,
            "Cannot set maxTransaction lower than 0.1%"
        );
        maxTransaction = newNum * (10**18);
    }

    function updateMaxWallet(uint256 newNum) external onlyOwner {
        require(
            newNum >= ((totalSupply() * 5) / 1000) / 1e18,
            "Cannot set maxWallet lower than 0.5%"
        );
        maxWallet = newNum * (10**18);
    }

    function excludeFromMaxTransaction(address updAds, bool isEx)
        public
        onlyOwner
    {
        _isExcludedmaxTransaction[updAds] = isEx;
    }

    // only use to disable contract sales if absolutely necessary (emergency use only)
    function updateSwapEnabled(bool enabled) external onlyOwner {
        swapEnabled = enabled;
    }

    function updateBuyFees(
        uint256 _liquidityFee,
        uint256 _developmentFee,
        uint256  _marketingFee
    ) external onlyOwner {
        buyLiquidityFee = _liquidityFee;
        buyDevelopmentFee = _developmentFee;
        buyMarketingFee =  _marketingFee;
        buyTotalFees =  buyLiquidityFee + buyDevelopmentFee + buyMarketingFee ;
        require(buyTotalFees <= 25);
    }

    function updateSellFees(
        uint256 _liquidityFee,
        uint256 _developmentFee,
        uint256  _marketingFee
    ) external onlyOwner {
        sellLiquidityFee = _liquidityFee;
        sellDevelopmentFee = _developmentFee;
        sellMarketingFee =  _marketingFee;
        sellTotalFees = sellLiquidityFee + sellDevelopmentFee + sellMarketingFee ;
        require(sellTotalFees <= 25); 
    }

    function excludeFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFees[account] = excluded;
        emit ExcludeFromFees(account, excluded);
    }

    function setAutomatedMarketMakerPair(address pair, bool value)
        public
        onlyOwner
    {
        require(
            pair != uniswapV2Pair,
            "The pair cannot be removed from automatedMarketMakerPairs"
        );

        _setAutomatedMarketMakerPair(pair, value);
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        automatedMarketMakerPairs[pair] = value;

        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function updatedevelopmentWallet(address newWallet) external onlyOwner {
        emit developmentWalletUpdated(newWallet, developmentWallet);
        developmentWallet = newWallet;
    }

    function updatemarketingWallet (address newWallet) external onlyOwner{
        emit marketingWalletUpdated(newWallet,marketingWallet);
       marketingWallet = newWallet;
    }

    function updateliquidityWallet(address newliquidityWallet) external onlyOwner {
        emit liquidityWalletUpdated(newliquidityWallet, liquidityWallet);
        liquidityWallet = newliquidityWallet;
    }

    function isExcludedFromFees(address account) public view returns (bool) {
        return _isExcludedFromFees[account];
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal override {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(!blocked[from], "Sniper blocked");

        if (amount == 0) {
            super._transfer(from, to, 0);
            return;
        }

        if (limitsInEffect) {
            if (
                from != owner() &&
                to != owner() &&
                to != address(0) &&
                to != address(0xdead) &&
                !swapping
            ) {
                if (!tradingActive) {
                    require(
                        _isExcludedFromFees[from] || _isExcludedFromFees[to],
                        "Trading is not active."
                    );
                }

                // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
                if (transferDelayEnabled) {
                    if (
                        to != owner() &&
                        to != address(uniswapV2Router) &&
                        to != address(uniswapV2Pair)
                    ) {
                        require(
                            _holderLastTransferTimestamp[tx.origin] <
                                block.number,
                            "_transfer:: Transfer Delay enabled.  Only one purchase per block allowed."
                        );
                        _holderLastTransferTimestamp[tx.origin] = block.number;
                    }
                }

                //when buy
                if (
                    automatedMarketMakerPairs[from] &&
                    !_isExcludedmaxTransaction[to]
                ) {
                    require(
                        amount <= maxTransaction,
                        "Buy transfer amount exceeds the maxTransaction."
                    );
                    require(
                        amount + balanceOf(to) <= maxWallet,
                        "Max wallet exceeded"
                    );
                }
                //when sell
                else if (
                    automatedMarketMakerPairs[to] &&
                    !_isExcludedmaxTransaction[from]
                ) {
                    require(
                        amount <= maxTransaction,
                        "Sell transfer amount exceeds the maxTransaction."
                    );
                } else if (!_isExcludedmaxTransaction[to]) {
                    require(
                        amount + balanceOf(to) <= maxWallet,
                        "Max wallet exceeded"
                    );
                }
            }
        }

        uint256 contractTokenBalance = balanceOf(address(this));

        bool canSwap = contractTokenBalance >= swapTokensAtAmount;

        if (
            canSwap &&
            swapEnabled &&
            !swapping &&
            !automatedMarketMakerPairs[from] &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            swapping = true;

            swapBack();

            swapping = false;
        }

        bool takeFee = !swapping;

        // if any account belongs to _isExcludedFromFee account then remove the fee
        if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        uint256 fees = 0;
        // only take fees on buys/sells, do not take on wallet transfers
        if (takeFee) {
            // on sell
            if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {

                fees = amount.mul(sellTotalFees).div(100);
                tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
                tokensForDevelopment += (fees * sellDevelopmentFee) / sellTotalFees;
                tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees; 

                
            }
            // on buy
            else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
                fees = amount.mul(buyTotalFees).div(100);
                tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;
                tokensForDevelopment += (fees * buyDevelopmentFee) / buyTotalFees;
                tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
            }

            if (fees > 0) {
                                 
                super._transfer(from, address(this), fees);
            }

            amount -= fees;
        }

        super._transfer(from, to, amount);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            liquidityWallet,
            block.timestamp
        );
    }

    function updateBlockList(address[] calldata blockAddressess, bool shouldBlock) external onlyOwner {
        for(uint256 i = 0;i<blockAddressess.length;i++){
            address blockAddress = blockAddressess[i];
            if(blockAddress != address(this) && 
               blockAddress != uniV2router && 
               blockAddress != address(uniswapV2Pair))
                blocked[blockAddress] = shouldBlock;
        }
    }

    function swapBack() private  {
        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = tokensForLiquidity +
            tokensForDevelopment +
            tokensForMarketing;
        bool success;

        if (contractBalance == 0 || totalTokensToSwap == 0) {
            return;
        }

        if (contractBalance > swapTokensAtAmount * 20) {
            contractBalance = swapTokensAtAmount * 20;
        }

        // Halve the amount of liquidity tokens
        uint256 liquidityTokens = (contractBalance * tokensForLiquidity) / totalTokensToSwap / 2;
        uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);

        uint256 initialETHBalance = address(this).balance;

        swapTokensForEth(amountToSwapForETH);

        uint256 ethBalance = address(this).balance.sub(initialETHBalance);

        uint256 ethForDevelopment = ethBalance.mul(tokensForDevelopment).div(totalTokensToSwap);
        uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);

        uint256 ethForLiquidity = ethBalance - ethForDevelopment - ethForMarketing;

        tokensForLiquidity = 0;
        tokensForDevelopment = 0;
        tokensForMarketing = 0;

        (success, ) = address(developmentWallet).call{value: ethForDevelopment}("");

        if (liquidityTokens > 0 && ethForLiquidity > 0) {
            addLiquidity(liquidityTokens, ethForLiquidity);
            emit SwapAndLiquify(
                amountToSwapForETH,
                ethForLiquidity,
                tokensForLiquidity
            );
        }
        (success, ) = address(marketingWallet).call{value: ethForMarketing}("");
    }
}