/*

    🌙  Web:        https://www.worshipchons.com/        
    🌙  Telegram:   https://t.me/CHONS_portal
    
*/

// SPDX-License-Identifier: MIT
pragma solidity = 0.8.12;

// ##### Context #####
// This contract is only required for intermediate, library-like contracts.
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}




// ##### Ownable #####
// Contract module which provides a basic access control mechanism
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    // Initializes the contract setting the deployer as the initial owner.
    constructor() {
        _transferOwnership(_msgSender());
    }

    // Returns the address of the current owner.
    function owner() public view virtual returns (address) {
        return _owner;
    }

    // Throws if called by any account other than the owner.
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    // Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    // Transfers ownership of the contract to a new account (`newOwner`).
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    // Transfers ownership of the contract to a new account (`newOwner`).
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}




// ##### IERC20 #####
interface IERC20 {
    // Returns the amount of tokens in existence.
    function totalSupply() external view returns (uint256);

    // Returns the amount of tokens owned by `account`.
    function balanceOf(address account) external view returns (uint256);

    // Moves `amount` tokens from the caller's account to `recipient`.
    function transfer(address recipient, uint256 amount) external returns (bool);

    // Returns the remaining number of tokens that `spender` will be allowed to spend on behalf of `owner` through {transferFrom}. This is zero by default.
    function allowance(address owner, address spender) external view returns (uint256);

    // Sets `amount` as the allowance of `spender` over the caller's tokens.
    function approve(address spender, uint256 amount) external returns (bool);

    // Moves `amount` tokens from `sender` to `recipient` using the allowance mechanism. `amount` is then deducted from the caller's allowance.
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    // Emitted when `value` tokens are moved from one account (`from`) to another (`to`).
    event Transfer(address indexed from, address indexed to, uint256 value);

    // Emitted when the allowance of a `spender` for an `owner` is set by a call to {approve}. `value` is the new allowance.
    event Approval(address indexed owner, address indexed spender, uint256 value);
}




// ##### IERC20Metadata #####
// Interface for the optional metadata functions from the ERC20 standard.
interface IERC20Metadata is IERC20 {
    // Returns the name of the token.
    function name() external view returns (string memory);

    // Returns the symbol of the token.
    function symbol() external view returns (string memory);

    // Returns the decimals places of the token.
    function decimals() external view returns (uint8);
}




// ##### ERC20 #####
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;

    // Sets the values for {name} and {symbol}.
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    // Returns the name of the token.
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    // Returns the symbol of the token, usually a shorter version of the
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    // Returns the number of decimals used to get its user representation.
    // For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5.05` (`505 / 10 ** 2`).
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    // See {IERC20-totalSupply}.
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    // See {IERC20-balanceOf}.
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    // See {IERC20-transfer}.
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    // See {IERC20-allowance}.
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    // See {IERC20-approve}.
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    // See {IERC20-transferFrom}.
    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;
    }

    // Atomically increases the allowance granted to `spender` by the caller.
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    // Atomically decreases the allowance granted to `spender` by the caller.
    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;
    }

    // Moves `amount` of tokens from `sender` to `recipient`.
    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);
    }

    // Creates `amount` tokens and assigns them to `account`, increasing the total supply.
    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);
    }

    // Destroys `amount` tokens from `account`, reducing the total supply.
    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);
    }

    // Sets `amount` as the allowance of `spender` over the `owner` s tokens.
    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);
    }

    // Hook that is called before any transfer of tokens. This includes minting and burning.
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    // Hook that is called after any transfer of tokens. This includes minting and burning.
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}




// ##### SafeMath #####
// CAUTION: This version of SafeMath should only be used with Solidity 0.8 or later, because it relies on the compiler's built in overflow checks.
// NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler now has built in overflow checking.
library SafeMath {
    // Returns the addition of two unsigned integers, with an overflow flag.
    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);
        }
    }

    //  Returns the substraction of two unsigned integers, with an overflow flag.
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    // Returns the multiplication of two unsigned integers, with an overflow flag.
    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);
        }
    }

    //  Returns the division of two unsigned integers, with a division by zero flag.
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    // Returns the remainder of dividing two unsigned integers, with a division by zero flag.
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    // Returns the addition of two unsigned integers, reverting on overflow.
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    // Returns the subtraction of two unsigned integers, reverting on overflow (when the result is negative).
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    // Returns the multiplication of two unsigned integers, reverting on overflow.
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    // Returns the integer division of two unsigned integers, reverting on division by zero. The result is rounded towards zero.
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    // Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), reverting when dividing by zero.
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    // Returns the subtraction of two unsigned integers, reverting with custom message on overflow (when the result is negative).
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    // Returns the integer division of two unsigned integers, reverting with custom message on division by zero. The result is rounded towards zero.
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    //  Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), reverting with custom message when dividing by zero.
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}




// ##### IUniswapV2Factory #####
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;
}




// ##### IUniswapV2Factory #####
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;
}




// ##### IUniswapV2Router02 #####
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;
}




// ##### GENERAL #####
contract Khon2u is ERC20, Ownable {
    using SafeMath for uint256;

    // Namings
    string private projectName = "Khon2u";
    string private tokenName = string.concat("$", "CHON2");

    // Wallets
    address public devWallet;
    // address public marketingWallet;
    // address public charityWallet;

    // Tokens
    uint256 public tokensForDev;
    // uint256 public tokensForMarketing;
    // uint256 public tokensForCharity;
    uint256 public tokensForLiquidity;

    // Buy fees
    uint256 public buyTotalFees;
    uint256 public buyDevFee;
    // uint256 public buyMarketingFee;
	// uint256 public buyCharityFee;
    uint256 public buyLiquidityFee;
    
    // Sell fees
    uint256 public sellTotalFees;
    uint256 public sellDevFee;
    // uint256 public sellMarketingFee;
	// uint256 public sellCharityFee;
    uint256 public sellLiquidityFee;
    
    // Limits
    uint256 public maxTransactionAmount;
    uint256 public swapTokensAtAmount;
    uint256 public maxWalletAmount;

    // Restrictions
    bool public limitsInEffect = true;
    bool public tradingActive = false;
    bool public swapEnabled = false;
    bool public transferDelayEnabled = true;

    // Anti-bot and anti-whale mappings and variables
    mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
    
    // UniswapV2Router02
    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    address public constant deadAddress = address(0xdead);

    // Etc. 
    bool private swapping;
   
   // Exlcude from fees and max transaction amount
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) public _isExcludedMaxTransactionAmount;

    // store addresses that a automatic market maker pairs. Any transfer *to* these addresses
    // could be subject to a maximum transfer amount
    mapping(address => bool) public automatedMarketMakerPairs;

    event UpdateUniswapV2Router(
        address indexed newAddress,
        address indexed oldAddress
    );

    // Exclude from fees
    event ExcludeFromFees(address indexed account, bool isExcluded);

    // Set automated market maker pair
    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    // Swap and liquify
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );

    // Constructor
    constructor() ERC20(projectName, tokenName) {
        // Uniswap
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        excludeFromMaxTransaction(address(_uniswapV2Router), true);
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        excludeFromMaxTransaction(address(uniswapV2Pair), true);
        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);

        // Wallets
        devWallet = address(0xF8Df94681f7885351D711776A56AD2B19BC33543);
        // marketingWallet = address(0x000000000000000000000000000000000000dEaD);
        // charityWallet = address(0x000000000000000000000000000000000000dEaD);
        
        // Total supply
        uint256 totalSupply = 1000000000 * 1e18;

        // Swap Tokens At Amount
        swapTokensAtAmount = (totalSupply * 1) / 1000; // 0.1% of totalSupply

        // Max Transaction Amount
        maxTransactionAmount = (totalSupply * 10) / 1000; // 1% of totalSupply
        
        // Max Wallet
        maxWalletAmount = (totalSupply * 10) / 1000; // 1% of totalSupply

        // Buy fees
        buyDevFee = 5;
        //buyMarketingFee = 0;
        // buyCharityFee = 0;
        buyLiquidityFee = 5;
        buyTotalFees = buyDevFee/* + buyMarketingFee + buyCharityFee*/ + buyLiquidityFee;
        
        // Sell fees
        sellDevFee = 5;
        //sellMarketingFee = 0;
		// sellCharityFee = 0;
        sellLiquidityFee = 5;
        sellTotalFees = sellDevFee/* + sellMarketingFee + sellCharityFee*/ + sellLiquidityFee;

        // Exclude from paying fees or having max transaction amount
        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);

        excludeFromMaxTransaction(owner(), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(address(0xdead), true);

        // _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again.
        _mint(msg.sender, totalSupply);
    }

    receive() external payable {}

    // Update limits to *First Stable
    function updateLimitsToFirstStable() external onlyOwner {
        // Max Transaction Amount
        maxTransactionAmount = (totalSupply() * 15) / 1000; // 1.5% of totalSupply  
        
        // Max Wallet
        maxWalletAmount = (totalSupply() * 15) / 1000; // 1.5% of totalSupply

        // Buy fees
        buyDevFee = 5;
        buyLiquidityFee = 1;
        buyTotalFees = buyDevFee/* + buyMarketingFee + buyCharityFee*/ + buyLiquidityFee;

        // Sell fees
        sellDevFee = 5;
        sellLiquidityFee = 1;
        sellTotalFees = sellDevFee/* + sellMarketingFee + sellCharityFee*/ + sellLiquidityFee;
    }

    // Update limits to *Second Stable
    function updateLimitsToSecondStable() external onlyOwner {
        // Max Transaction Amount
        maxTransactionAmount = (totalSupply() * 25) / 1000; // 2.5% of totalSupply  
        
        // Max Wallet
        maxWalletAmount = (totalSupply() * 25) / 1000; // 2.5% of totalSupply

        // Buy fees
        buyDevFee = 4;
        buyLiquidityFee = 1;
        buyTotalFees = buyDevFee/* + buyMarketingFee + buyCharityFee*/ + buyLiquidityFee;

        // Sell fees
        sellDevFee = 4;
        sellLiquidityFee = 1;
        sellTotalFees = sellDevFee/* + sellMarketingFee + sellCharityFee*/ + sellLiquidityFee;
    }
    
    // Enable trading (once enabled, can never be turned off)
    function enableTrading() external onlyOwner {
        tradingActive = true;
        swapEnabled = true;
    }

    // Remove limits
    function removeLimits() external onlyOwner returns (bool) {
        limitsInEffect = false;
        return true;
    }

    // Disable transfer delay (once enabled, can never be turned off)
    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;
    }

    // Update maximum transaction amount
    function updateMaxTxnAmount(uint256 newAmount) external onlyOwner {
        require(newAmount >= ((totalSupply() * 1) / 1000) / 1e18, "Cannot set maxTransactionAmount lower than 0.1%");
        maxTransactionAmount = newAmount * 1e18;
    }

    // Update maximum wallet amount
    function updateMaxWalletAmount(uint256 newAmount) external onlyOwner {
        require(newAmount >= ((totalSupply() * 5) / 1000) / 1e18, "Cannot set maxWallet lower than 0.5%");
        maxWalletAmount = newAmount * 1e18;
    }
	
    // Exclude from max transaction
    function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner
    {
        _isExcludedMaxTransactionAmount[updAds] = isEx;
    }

    // Disable contract sales if absolutely necessary (emergency use only)
    function updateSwapEnabled(bool enabled) external onlyOwner {
        swapEnabled = enabled;
    }

    // Update buy fees
    function updateBuyFees(
		uint256 _devFee,
        // uint256 _marketingFee,
        // uint256 _charityFee,
        uint256 _liquidityFee
    ) external onlyOwner {
		require((_devFee/* + _marketingFee + _charityFee*/ + _liquidityFee) <= 10, "Max buy fee is <= 10%");
		buyDevFee = _devFee;
        //buyMarketingFee = _marketingFee;
        // buyCharityFee = _charityFee;
        buyLiquidityFee = _liquidityFee;
        buyTotalFees = buyDevFee/* + buyMarketingFee + buyCharityFee*/ + buyLiquidityFee;
     }

    // Update sell fees
    function updateSellFees(
		uint256 _devFee,
        // uint256 _marketingFee,
        // uint256 _charityFee,
        uint256 _liquidityFee
    ) external onlyOwner {
		require((_devFee/* + _marketingFee + _charityFee*/ + _liquidityFee) <= 10, "Max sell fee is <= 10%");
		sellDevFee = _devFee;
        // sellMarketingFee = _marketingFee;
        // sellCharityFee = _charityFee;
        sellLiquidityFee = _liquidityFee;
        sellTotalFees = sellDevFee/* + sellMarketingFee + sellCharityFee*/ + sellLiquidityFee;
    }

    // Exclude from fees
    function excludeFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFees[account] = excluded;
        emit ExcludeFromFees(account, excluded);
    }

    // Market Maker Pair
    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);
    }

    // READ: Verify if account is excluded from fees
    function isExcludedFromFees(address account) public view returns (bool) {
        return _isExcludedFromFees[account];
    }

    // Transfer
    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");

        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] &&
                    !_isExcludedMaxTransactionAmount[to]
                ) {
                    require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTransactionAmount.");
                    require(amount + balanceOf(to) <= maxWalletAmount, "Max wallet exceeded");
                }
                // when sell
                else if (
                    automatedMarketMakerPairs[to] &&
                    !_isExcludedMaxTransactionAmount[from]
                ) {
                    require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount.");
                } else if (!_isExcludedMaxTransactionAmount[to]) {
                    require(amount + balanceOf(to) <= maxWalletAmount, "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);      
                tokensForDev += (fees * sellDevFee) / sellTotalFees;
                //tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
                // tokensForCharity += (fees * sellCharityFee) / sellTotalFees;
                tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
            }
            // on buy
            else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
                fees = amount.mul(buyTotalFees).div(100);
				tokensForDev += (fees * buyDevFee) / buyTotalFees;
                //tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
                // tokensForCharity += (fees * buyCharityFee) / buyTotalFees;
                tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;  
            }

            if (fees > 0) {
                super._transfer(from, address(this), fees);
            }

            amount -= fees;
        }

        super._transfer(from, to, amount);
    }

    // Swap tokens for Eth.
    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
        );
    }

    // Add Liquidity
    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
            devWallet,
            block.timestamp
        );
    }

    // Swap back
    function swapBack() private {
        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = tokensForDev/* + tokensForMarketing + tokensForCharity*/ + tokensForLiquidity;
        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 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);
        //uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);
        // uint256 ethForCharity = ethBalance.mul(tokensForCharity).div(totalTokensToSwap);
        uint256 ethForLiquidity = ethBalance - ethForDev/* - ethForMarketing - ethForCharity*/;

        tokensForLiquidity = 0;
		// tokensForCharity = 0;
        // tokensForMarketing = 0;
        tokensForDev = 0;

        (success, ) = address(devWallet).call{value: ethForDev}("");
        // (success, ) = address(marketingWallet).call{value: ethForMarketing}("");

        if (liquidityTokens > 0 && ethForLiquidity > 0) {
            addLiquidity(liquidityTokens, ethForLiquidity);
            emit SwapAndLiquify(
                amountToSwapForETH,
                ethForLiquidity,
                tokensForLiquidity
            );
        }

        // (success, ) = address(charityWallet).call{value: address(this).balance}("");
    }

}