/**
$BPI 
Bullet Proof Inu
4% max bag
0% tax
1 billion tokens

https://t.me/Bullet_Proof_Inu

Bullet-resistant materials (also called ballistic materials or, equivalently, anti-ballistic materials) are usually rigid, but may be supple.
 They may be complex, such as Kevlar, Lexan, or carbon fiber composite materials, or basic and simple, such as steel or titanium.

Bullet Proof Inu beats them all.
*/

// SPDX-License-Identifier: Unlicensed

    pragma solidity ^0.8.0;

    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);
    }

    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 {
                // 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 (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;
            }
        }
    }

    abstract contract Context {
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }

        function _msgData() internal view virtual returns (bytes calldata) {
            this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
            return msg.data;
        }
    }

    library Address {
        
        function isContract(address account) internal view returns (bool) {
            uint256 size;
            assembly { size := extcodesize(account) }
            return size > 0;
        }

        function sendValue(address payable recipient, uint256 amount) internal {
            require(address(this).balance >= amount, "Address: insufficient balance");
            (bool success, ) = recipient.call{ value: amount }("");
            require(success, "Address: unable to send value, recipient may have reverted");
        }
        
        function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
        }
        
        function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
            return functionCallWithValue(target, data, 0, errorMessage);
        }
        
        function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
            return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
        }
        
        function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
            require(address(this).balance >= value, "Address: insufficient balance for call");
            require(isContract(target), "Address: call to non-contract");
            (bool success, bytes memory returndata) = target.call{ value: value }(data);
            return _verifyCallResult(success, returndata, errorMessage);
        }
        
        function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
            return functionStaticCall(target, data, "Address: low-level static call failed");
        }
        
        function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
            require(isContract(target), "Address: static call to non-contract");
            (bool success, bytes memory returndata) = target.staticcall(data);
            return _verifyCallResult(success, returndata, errorMessage);
        }


        function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionDelegateCall(target, data, "Address: low-level delegate call failed");
        }
        
        function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
            require(isContract(target), "Address: delegate call to non-contract");
            (bool success, bytes memory returndata) = target.delegatecall(data);
            return _verifyCallResult(success, returndata, errorMessage);
        }

        function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
            if (success) {
                return returndata;
            } else {
                if (returndata.length > 0) {
                    assembly {
                        let returndata_size := mload(returndata)
                        revert(add(32, returndata), returndata_size)
                    }
                } else {
                    revert(errorMessage);
                }
            }
        }
    }

    abstract contract Ownable is Context {
        address internal _owner;
        address private _previousOwner;

        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
        constructor () {
            _owner = _msgSender();
            emit OwnershipTransferred(address(0), _owner);
        }
        
        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 {
            emit OwnershipTransferred(_owner, address(0));
            _owner = address(0);
        }


        function transferOwnership(address newOwner) public virtual onlyOwner {
            require(newOwner != address(0), "Ownable: new owner is the zero address");
            emit OwnershipTransferred(_owner, newOwner);
            _owner = newOwner;
        }
    
    }

    interface IERC20Metadata is IERC20 {
        /**
        * @dev Returns the name of the token.
        */
        function name() external view returns (string memory);

        /**
        * @dev Returns the symbol of the token.
        */
        function symbol() external view returns (string memory);

        /**
        * @dev Returns the decimals places of the token.
        */
        function decimals() external view returns (uint8);
    }
    contract ERC20 is Context,Ownable, IERC20, IERC20Metadata {
        using SafeMath for uint256;

        mapping(address => uint256) private _balances;

        mapping(address => mapping(address => uint256)) private _allowances;

        uint256 private _totalSupply;

        string private _name;
        string private _symbol;

        /**
        * @dev Sets the values for {name} and {symbol}.
        *
        * The default value of {decimals} is 18. To select a different value for
        * {decimals} you should overload it.
        *
        * All two of these values are immutable: they can only be set once during
        * construction.
        */
        constructor(string memory name_, string memory symbol_) {
            _name = name_;
            _symbol = symbol_;
        }

        /**
        * @dev Returns the name of the token.
        */
        function name() public view virtual override returns (string memory) {
            return _name;
        }

        /**
        * @dev Returns the symbol of the token, usually a shorter version of the
        * name.
        */
        function symbol() public view virtual override returns (string memory) {
            return _symbol;
        }

        /**
        * @dev 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`).
        *
        * Tokens usually opt for a value of 18, imitating the relationship between
        * Ether and Wei. This is the value {ERC20} uses, unless this function is
        * overridden;
        *
        * NOTE: This information is only used for _display_ purposes: it in
        * no way affects any of the arithmetic of the contract, including
        * {IERC20-balanceOf} and {IERC20-transfer}.
        */
        function decimals() public view virtual override returns (uint8) {
            return 18;
        }

        /**
        * @dev See {IERC20-totalSupply}.
        */
        function totalSupply() public view virtual override returns (uint256) {
            return _totalSupply;
        }

        /**
        * @dev See {IERC20-balanceOf}.
        */
        function balanceOf(address account) public view virtual override returns (uint256) {
            return _balances[account];
        }

        /**
        * @dev See {IERC20-transfer}.
        *
        * Requirements:
        *
        * - `recipient` cannot be the zero address.
        * - the caller must have a balance of at least `amount`.
        */
        function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
            _transfer(_msgSender(), recipient, amount);
            return true;
        }

        /**
        * @dev See {IERC20-allowance}.
        */
        function allowance(address owner, address spender) public view virtual override returns (uint256) {
            return _allowances[owner][spender];
        }

        /**
        * @dev See {IERC20-approve}.
        *
        * Requirements:
        *
        * - `spender` cannot be the zero address.
        */
        function approve(address spender, uint256 amount) public virtual override returns (bool) {
            _approve(_msgSender(), spender, amount);
            return true;
        }

        /**
        * @dev See {IERC20-transferFrom}.
        *
        * Emits an {Approval} event indicating the updated allowance. This is not
        * required by the EIP. See the note at the beginning of {ERC20}.
        *
        * Requirements:
        *
        * - `sender` and `recipient` cannot be the zero address.
        * - `sender` must have a balance of at least `amount`.
        * - the caller must have allowance for ``sender``'s tokens of at least
        * `amount`.
        */
        function transferFrom(
            address sender,
            address recipient,
            uint256 amount
        ) public virtual override returns (bool) {
            _transfer(sender, recipient, amount);
            _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
            return true;
        }

        /**
        * @dev Atomically increases the allowance granted to `spender` by the caller.
        *
        * This is an alternative to {approve} that can be used as a mitigation for
        * problems described in {IERC20-approve}.
        *
        * Emits an {Approval} event indicating the updated allowance.
        *
        * Requirements:
        *
        * - `spender` cannot be the zero address.
        */
        function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
            _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
            return true;
        }

        /**
        * @dev Atomically decreases the allowance granted to `spender` by the caller.
        *
        * This is an alternative to {approve} that can be used as a mitigation for
        * problems described in {IERC20-approve}.
        *
        * Emits an {Approval} event indicating the updated allowance.
        *
        * Requirements:
        *
        * - `spender` cannot be the zero address.
        * - `spender` must have allowance for the caller of at least
        * `subtractedValue`.
        */
        function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
            _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
            return true;
        }

        /**
        * @dev Moves tokens `amount` from `sender` to `recipient`.
        *
        * This is internal function is equivalent to {transfer}, and can be used to
        * e.g. implement automatic token fees, slashing mechanisms, etc.
        *
        * Emits a {Transfer} event.
        *
        * Requirements:
        *
        * - `sender` cannot be the zero address.
        * - `recipient` cannot be the zero address.
        * - `sender` must have a balance of at least `amount`.
        */
        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);

            _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
            _balances[recipient] = _balances[recipient].add(amount);
            emit Transfer(sender, recipient, amount);
        }

        /** @dev Creates `amount` tokens and assigns them to `account`, increasing
        * the total supply.
        *
        * Emits a {Transfer} event with `from` set to the zero address.
        *
        * Requirements:
        *
        * - `account` cannot be the zero address.
        */
        function _mint(address account, uint256 amount) internal virtual {
            require(account != address(0), "ERC20: mint to the zero address");

            _beforeTokenTransfer(address(0), account, amount);

            _totalSupply = _totalSupply.add(amount);
            _balances[account] = _balances[account].add(amount);
            emit Transfer(address(0), account, amount);
        }

        /**
        * @dev Destroys `amount` tokens from `account`, reducing the
        * total supply.
        *
        * Emits a {Transfer} event with `to` set to the zero address.
        *
        * Requirements:
        *
        * - `account` cannot be the zero address.
        * - `account` must have at least `amount` tokens.
        */
        function _burn(address account, uint256 amount) internal virtual {
            require(account != address(0), "ERC20: burn from the zero address");

            _beforeTokenTransfer(account, address(0), amount);

            _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
            _totalSupply = _totalSupply.sub(amount);
            emit Transfer(account, address(0), amount);
        }

        /**
        * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
        *
        * This internal function is equivalent to `approve`, and can be used to
        * e.g. set automatic allowances for certain subsystems, etc.
        *
        * Emits an {Approval} event.
        *
        * Requirements:
        *
        * - `owner` cannot be the zero address.
        * - `spender` cannot be the zero address.
        */
        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);
        }

        /**
        * @dev Hook that is called before any transfer of tokens. This includes
        * minting and burning.
        *
        * Calling conditions:
        *
        * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
        * will be to transferred to `to`.
        * - when `from` is zero, `amount` tokens will be minted for `to`.
        * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
        * - `from` and `to` are never both zero.
        *
        * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
        */
        function _beforeTokenTransfer(
            address from,
            address to,
            uint256 amount
        ) internal virtual {}
    }


    interface IUniswapV2Factory {
        event PairCreated(address indexed token0, address indexed token1, address pair, uint);
        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(uint) external view returns (address pair);
        function allPairsLength() external view returns (uint);
        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, uint value);
        event Transfer(address indexed from, address indexed to, uint 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 (uint);
        function balanceOf(address owner) external view returns (uint);
        function allowance(address owner, address spender) external view returns (uint);
        function approve(address spender, uint value) external returns (bool);
        function transfer(address to, uint value) external returns (bool);
        function transferFrom(address from, address to, uint 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 (uint);
        function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
        event Mint(address indexed sender, uint amount0, uint amount1);
        event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
        event Swap(
            address indexed sender,
            uint amount0In,
            uint amount1In,
            uint amount0Out,
            uint amount1Out,
            address indexed to
        );
        event Sync(uint112 reserve0, uint112 reserve1);
        function MINIMUM_LIQUIDITY() external pure returns (uint);
        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 (uint);
        function price1CumulativeLast() external view returns (uint);
        function kLast() external view returns (uint);
        function mint(address to) external returns (uint liquidity);
        function burn(address to) external returns (uint amount0, uint amount1);
        function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
        function skim(address to) external;
        function sync() external;
        function initialize(address, address) external;
    }

    interface IUniswapV2Router01 {
        function factory() external pure returns (address);
        function WETH() external pure returns (address);
        function addLiquidity(
            address tokenA,
            address tokenB,
            uint amountADesired,
            uint amountBDesired,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline
        ) external returns (uint amountA, uint amountB, uint liquidity);
        function addLiquidityETH(
            address token,
            uint amountTokenDesired,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
        function removeLiquidity(
            address tokenA,
            address tokenB,
            uint liquidity,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline
        ) external returns (uint amountA, uint amountB);
        function removeLiquidityETH(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external returns (uint amountToken, uint amountETH);
        function removeLiquidityWithPermit(
            address tokenA,
            address tokenB,
            uint liquidity,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline,
            bool approveMax, uint8 v, bytes32 r, bytes32 s
        ) external returns (uint amountA, uint amountB);
        function removeLiquidityETHWithPermit(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline,
            bool approveMax, uint8 v, bytes32 r, bytes32 s
        ) external returns (uint amountToken, uint amountETH);
        function swapExactTokensForTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external returns (uint[] memory amounts);
        function swapTokensForExactTokens(
            uint amountOut,
            uint amountInMax,
            address[] calldata path,
            address to,
            uint deadline
        ) external returns (uint[] memory amounts);
        function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
            external
            payable
            returns (uint[] memory amounts);
        function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
            external
            returns (uint[] memory amounts);
        function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
            external
            returns (uint[] memory amounts);
        function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
            external
            payable
            returns (uint[] memory amounts);

        function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
        function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
        function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
        function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
        function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
    }

    interface IUniswapV2Router02 is IUniswapV2Router01 {
        function removeLiquidityETHSupportingFeeOnTransferTokens(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external returns (uint amountETH);
        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;
        function swapExactTokensForETHSupportingFeeOnTransferTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external;
    }

    contract bpi is ERC20 {
        using SafeMath for uint256;
        using Address for address;

        mapping (address => bool) private _isExcludedFromFee;
        mapping(address => bool) private _isExcludedFromMaxWallet;
        mapping(address => bool) private _isExcludedFromMaxTnxLimit;

        address public _devWalletAddress;    

        uint256 public _buyDevFee = 0;
        uint256 public _sellDevFee = 18; 

        IUniswapV2Router02 public uniswapV2Router;
        address public uniswapV2Pair;
        bool inSwapAndLiquify;
        bool public swapAndSendFeeEnabled = true;
        uint256 public _maxWalletBalance;
        uint256 public _maxTxAmount;
        uint256 public numTokensSellToSendEthToDev;
        event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
        event swapAndSendFeeEnabledUpdated(bool enabled);
        event SwapAndLiquify(
            uint256 tokensSwapped,
            uint256 ethReceived,
            uint256 tokensIntoLiqudity
        );
        
        modifier lockTheSwap {
            inSwapAndLiquify = true;
            _;
            inSwapAndLiquify = false;
        }
        
        constructor () ERC20("Bullet Proof Inu", "$BPI"){

            numTokensSellToSendEthToDev = 1000000 * 10 ** decimals();
            _devWalletAddress = 0x2f1BB27E6c4F252CC300215a0FF17a41e1b77D87;
            
            IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
            // Create a uniswap pair for this new token
            uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
                .createPair(address(this), _uniswapV2Router.WETH());

            // set the rest of the contract variables
            uniswapV2Router = _uniswapV2Router;
            
            //exclude owner and this contract from fee
            _isExcludedFromFee[_msgSender()] = true;
            _isExcludedFromFee[address(this)] = true;
            _isExcludedFromFee[_devWalletAddress] = true;

            // exclude from the Max wallet balance 
            _isExcludedFromMaxWallet[owner()] = true;
            _isExcludedFromMaxWallet[address(this)] = true;
            _isExcludedFromMaxWallet[_devWalletAddress] = true;

            // exclude from the max tnx limit 
            _isExcludedFromMaxTnxLimit[owner()] = true;
            _isExcludedFromMaxTnxLimit[address(this)] = true;
            _isExcludedFromMaxTnxLimit[_devWalletAddress] = true;


            /*
                _mint is an internal function in ERC20.sol that is only called here,
                and CANNOT be called ever again
            */
            _mint(owner(), 1000000000 * 10 ** decimals());		
            _maxWalletBalance = (totalSupply() * 4 ) / 100;
            _maxTxAmount = (totalSupply() * 4 ) / 100;

            
        }

        function includeAndExcludeInWhitelist(address account, bool value) public onlyOwner {
            _isExcludedFromFee[account] = value;
        }

        function includeAndExcludedFromMaxWallet(address account, bool value) public onlyOwner {
            _isExcludedFromMaxWallet[account] = value;
        }

        function includeAndExcludedFromMaxTnxLimit(address account, bool value) public onlyOwner {
            _isExcludedFromMaxTnxLimit[account] = value;
        }

        function isExcludedFromFee(address account) public view returns(bool) {
            return _isExcludedFromFee[account];
        }

        function isExcludedFromMaxWallet(address account) public view returns(bool){
            return _isExcludedFromMaxWallet[account];
        }

        function isExcludedFromMaxTnxLimit(address account) public view returns(bool) {
            return _isExcludedFromMaxTnxLimit[account];
        }

        function setMaxWalletBalance(uint256 maxBalancePercent) external onlyOwner {
        _maxWalletBalance = maxBalancePercent * 10** decimals();
        }

        function setMaxTxAmount(uint256 maxTxAmount) external onlyOwner {
        _maxTxAmount = maxTxAmount * 10** decimals();
       }


        function setSellDevFess(
            uint256 dFee
        ) external onlyOwner {
            _sellDevFee = dFee;
        }

        function setBuyDevFees(
            uint256 dFee
        ) external onlyOwner {
            _buyDevFee = dFee;
        }
        function setDevWalletAddress(address _addr) external onlyOwner {
            _devWalletAddress = _addr;
        }  
        
        function setnumTokensSellToSendEthToDev(uint256 amount) external onlyOwner {
            numTokensSellToSendEthToDev = amount * 10 ** decimals();
        }

        function setRouterAddress(address newRouter) external onlyOwner {
            IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(newRouter);
            uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
            uniswapV2Router = _uniswapV2Router;
        }

        function setSwapAndSendFeeEnabled(bool _enabled) external onlyOwner {
            swapAndSendFeeEnabled = _enabled;
            emit swapAndSendFeeEnabledUpdated(_enabled);
        }
        
        //to recieve ETH from uniswapV2Router when swaping
        receive() external payable {}

        // to withdraw stucked BNB 
        function withdrawStuckedBNB(uint amount) external onlyOwner{
            // This is the current recommended method to use.
            (bool sent,) = _owner.call{value: amount}("");
            require(sent, "Failed to send BNB");    
            }

           // Withdraw stuked tokens 
        function withdrawStuckedTokens(address tokenAddress, uint256 tokens) external onlyOwner returns (bool success){
        return IERC20(tokenAddress).transfer(msg.sender, tokens);
        }
    
        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(amount > 0, "Transfer amount must be greater than zero");
        
        if (from != owner() && to != owner())
            require( _isExcludedFromMaxTnxLimit[from] || _isExcludedFromMaxTnxLimit[to] || 
                amount <= _maxTxAmount,
                "ERC20: Transfer amount exceeds the maxTxAmount."
            );
        
        
        if (
            from != owner() &&
            to != address(this) &&
            to != uniswapV2Pair ) 
        {
            uint256 currentBalance = balanceOf(to);
            require(_isExcludedFromMaxWallet[to] || (currentBalance + amount <= _maxWalletBalance),
                    "ERC20: Reached max wallet holding");
        }
      
            uint256 contractTokenBalance = balanceOf(address(this)); 
            bool overMinTokenBalance = contractTokenBalance >= numTokensSellToSendEthToDev;
            if (
                overMinTokenBalance &&
                !inSwapAndLiquify &&
                from != uniswapV2Pair &&
                swapAndSendFeeEnabled
            ) {
                contractTokenBalance = numTokensSellToSendEthToDev;
                swapTokensForFees(contractTokenBalance);
            }

            bool takeFee = true;
        if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
            super._transfer(from, to, amount);
            takeFee = false;
        } else {

            if (from == uniswapV2Pair) {
                // Buy
                uint256 DevTokens = amount.mul(_buyDevFee).div(100);

                amount= amount.sub(DevTokens);
                super._transfer(from, address(this), DevTokens);
                super._transfer(from, to, amount);

            } else if (to == uniswapV2Pair) {
                // Sell
                uint256 DevTokens = amount.mul(_sellDevFee).div(100);

                amount= amount.sub(DevTokens);
                super._transfer(from, address(this), DevTokens);
                super._transfer(from, to, amount);
            } else {
                // Transfer
                super._transfer(from, to, amount);
            }
        
        }

        }

        function swapTokensForFees(uint256 tokenAmount) private lockTheSwap {
            address[] memory path = new address[](2);
            path[0] = address(this);
            path[1] = uniswapV2Router.WETH();
            _approve(address(this), address(uniswapV2Router), tokenAmount);
            uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
                tokenAmount,
                0, // accept any amount of ETH
                path,
                _devWalletAddress,
                block.timestamp
            );
        }
    }