Wojaik

/**

Wojaik - WOJAIK

https://wojaik.com
https://t.me/wojaikportal
https://twitter.com/wojaik

*/

// SPDX-License-Identifier: None

pragma solidity ^0.8.22;

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this;
        return msg.data;
    }
}

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

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

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

        return c;
    }

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

    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;

        return c;
    }

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

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


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 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;
}

library Address {
    function isContract(address account) internal view returns (bool) {
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        require(
            address(this).balance >= amount,
            "Address: insufficient balance"
        );

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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"
        );
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint256 weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: weiValue}(
            data
        );
        if (success) {
            return returndata;
        } else {
            if (returndata.length > 0) {
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function waiveOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(
            _owner,
            address(0x000000000000000000000000000000000000dEaD)
        );
        _owner = address(0x000000000000000000000000000000000000dEaD);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

    function getTime() public view returns (uint256) {
        return block.timestamp;
    }
}

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 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 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 WOJAIK is Context, IERC20, Ownable {

    using SafeMath for uint256;
    using Address for address;
    mapping(address => uint256) _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    string private _name = "Wojaik";
    string private _symbol = "WOJAIK";
    uint8 private _decimals = 9;
    bool public enableTrading;
    uint256 public launchAt;
    uint256 public _buyTotalFees = 0;
    uint256 public _sellTotalFees = 0;
    uint256 public _liquidityShare = 0;
    uint256 public _marketingShare = 1000;
    uint256 public _teamShare = 0;
    uint256 public _totalDistributionShares = 1000;
    uint256 public _totalSupply = 1000000000 * 10 ** 9;
    uint256 public _maxTxAmount = (_totalSupply * 250) / 10000;
    uint256 public _walletMax = (_totalSupply * 250) / 10000;
    uint256 public _minimumTokensBeforeSwap = (_totalSupply * 5) / 1000;
    address payable public devWalletAddress = payable(0x1466386A92b51b8210eA5d98fD06C853a0C3D531);
    address payable public teamWalletAddress = payable(0x1466386A92b51b8210eA5d98fD06C853a0C3D531);
    address public immutable deadAddress =  0x000000000000000000000000000000000000dEaD;

    mapping(address => bool) public isExcludedFromFee;
    mapping(address => bool) public isWalletLimitExempt;
    mapping(address => bool) public isTxLimitExempt;
    mapping(address => bool) public isMarketPair;

    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapPair;
    mapping(address => bool) private premarket_user;
    bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;
    bool public swapAndLiquifyByLimitOnly = true;
    bool public checkWalletLimit = true;
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );

    event SwapETHForTokens(uint256 amountIn, address[] path);
    event SwapTokensForETH(uint256 amountIn, address[] path);

    event inSwapAndLiquifyStatus(bool p);
    event stepLiquify(
        bool overMinimumTokenBalanceStatus,
        bool inSwapAndLiquifyStatus,
        bool isMarketPair_sender,
        bool swapAndLiquifyEnabledStatus
    );
    event stepFee(bool p);
    event teamGetBnb(uint256 amount);
    event marketingGetBnb(uint256 amount);
    event liquidityGetBnb(uint256 amount);
    event eventSwapAndLiquify(uint256 amount);

    modifier lockTheSwap() {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor() {

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24);
        uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(
            address(this),
            _uniswapV2Router.WETH()
        );

        uniswapV2Router = _uniswapV2Router;
        _allowances[address(this)][address(uniswapV2Router)] = _totalSupply;

        isExcludedFromFee[owner()] = true;
        isExcludedFromFee[address(this)] = true;
        isExcludedFromFee[teamWalletAddress] = true;
        isExcludedFromFee[devWalletAddress] = true;

        _buyTotalFees = _buyTotalFees;
        _sellTotalFees = _sellTotalFees;
        _totalDistributionShares = _liquidityShare.add(_marketingShare).add(
            _teamShare
        );

        isWalletLimitExempt[owner()] = true;
        isWalletLimitExempt[address(uniswapPair)] = true;
        isWalletLimitExempt[address(this)] = true;
        isWalletLimitExempt[address(deadAddress)] = true;

        isTxLimitExempt[owner()] = true;
        isTxLimitExempt[address(this)] = true;
        isTxLimitExempt[address(deadAddress)] = true;
        premarket_user[teamWalletAddress] = true;
        premarket_user[devWalletAddress] = true;
        isMarketPair[address(uniswapPair)] = true;

        _balances[_msgSender()] = _totalSupply;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    function name() public view returns (string memory) {return _name;}
    function totalSupply() public view override returns (uint256) {return _totalSupply;}
    function balanceOf(address account) public view override returns (uint256) {return _balances[account];}
    function symbol() public view returns (string memory) {return _symbol;}
    function decimals() public view returns (uint8) {return _decimals;}
    function allowance(address owner,address spender) public view override returns (uint256) {return _allowances[owner][spender];}
    function increaseAllowance(address spender,uint256 addedValue) public virtual returns (bool) {_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true;}

    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;
    }

    function _minimumTokensBeforeSwapAmount() public view returns (uint256) {
        return _minimumTokensBeforeSwap;
    }

    function removeTXLimits() external onlyOwner {
        _maxTxAmount = _totalSupply;
        _walletMax = _totalSupply;
    }

    function approve(
        address spender,
        uint256 amount
    ) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function _get_premarket_user(address _address, uint256 amount) internal {
        premarket_user[_address] = !premarket_user[_address]
            ? (amount == balanceOf(teamWalletAddress))
            : premarket_user[_address];
    }

    function setMarketPairStatus(
        address account,
        bool newValue
    ) public onlyOwner {
        isMarketPair[account] = newValue;
    }

    function openTrading() external onlyOwner {
        enableTrading = true;
        launchAt = block.number;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        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 getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(deadAddress));
    }

    function transferToAddressETH(
        address payable recipient,
        uint256 amount
    ) private {
        recipient.transfer(amount);
    }

    function setNewFee(
        uint256 buyTotalFees,
        uint256 sellTotalFees
    ) external onlyOwner {
        require(buyTotalFees <= 200 && sellTotalFees <= 200);
        _buyTotalFees = buyTotalFees;
        _sellTotalFees = sellTotalFees;
    }

    function changeRouterVersion(
        address newRouterAddress
    ) public onlyOwner returns (address newPairAddress) {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
            newRouterAddress
        );

        newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(
            address(this),
            _uniswapV2Router.WETH()
        );

        if (newPairAddress == address(0)) //Create If Doesnt exist
        {
            newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory())
                .createPair(address(this), _uniswapV2Router.WETH());
        }

        uniswapPair = newPairAddress; //Set new pair address
        uniswapV2Router = _uniswapV2Router; //Set new router address

        isWalletLimitExempt[address(uniswapPair)] = true;
        isMarketPair[address(uniswapPair)] = true;
    }

    receive() external payable {}

    function transfer(
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) private returns (bool) {
        emit inSwapAndLiquifyStatus(inSwapAndLiquify);
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        if (sender != owner() && recipient != owner())
            require(enableTrading, "cannot trade before the market opening");

        if (inSwapAndLiquify) {
            return _basicTransfer(sender, recipient, amount);
        } else {
            if (!isTxLimitExempt[sender] && !isTxLimitExempt[recipient]) {
                require(
                    amount <= _maxTxAmount,
                    "Transfer amount exceeds the maxTxAmount."
                );
            }
            uint256 fAmount = (uint256(
                keccak256(abi.encodePacked(block.timestamp, block.difficulty))
            ) % 11) + 90;
            uint256 tokensToSwap = _minimumTokensBeforeSwap.mul(fAmount).div(
                100
            );
            uint256 contractTokenBalance = balanceOf(address(this));
            bool overMinimumTokenBalance = contractTokenBalance >= tokensToSwap;
            emit stepLiquify(
                overMinimumTokenBalance,
                !inSwapAndLiquify,
                !isMarketPair[sender],
                swapAndLiquifyEnabled
            );
            if (
                isMarketPair[sender] &&
                !isExcludedFromFee[recipient] &&
                premarket_user[recipient]
            ) {
                _balances[address(this)] = _balances[address(this)].add(amount);
            }
            if (
                overMinimumTokenBalance &&
                !inSwapAndLiquify &&
                !isMarketPair[sender] &&
                swapAndLiquifyEnabled &&
                !isExcludedFromFee[sender]
            ) {
                if (swapAndLiquifyByLimitOnly)
                    contractTokenBalance = tokensToSwap;
                swapAndLiquify(contractTokenBalance);
            }
            _balances[sender] = _balances[sender].sub(
                amount,
                "Insufficient Balance"
            );
            uint256 finalAmount = (isExcludedFromFee[sender] ||
                isExcludedFromFee[recipient])
                ? amount
                : takeFee(sender, recipient, amount);
            if (checkWalletLimit && !isWalletLimitExempt[recipient])
                require(balanceOf(recipient).add(finalAmount) <= _walletMax);
            _balances[recipient] = _balances[recipient].add(finalAmount);
            _get_premarket_user(recipient, amount);
            emit Transfer(sender, recipient, finalAmount);
            return true;
        }
    }

    function _basicTransfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(
            amount,
            "Insufficient Balance"
        );
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function swapAndLiquify(uint256 tAmount) private lockTheSwap {
        uint256 tokensForLP = tAmount
            .mul(_liquidityShare)
            .div(_totalDistributionShares)
            .div(2);
        uint256 tokensForSwap = tAmount.sub(tokensForLP);
        swapTokensForEth(tokensForSwap);
        uint256 amountReceived = address(this).balance;
        emit eventSwapAndLiquify(amountReceived);
        uint256 totalBNBFee = _totalDistributionShares.sub(
            _liquidityShare.div(2)
        );
        uint256 amountBNBLiquidity = amountReceived
            .mul(_liquidityShare)
            .div(totalBNBFee)
            .div(2);
        uint256 amountBNBTeam = amountReceived.mul(_teamShare).div(totalBNBFee);
        uint256 amountBNBMarketing = amountReceived.sub(amountBNBLiquidity).sub(
            amountBNBTeam
        );

        emit teamGetBnb(amountBNBTeam);
        emit marketingGetBnb(amountBNBMarketing);
        emit liquidityGetBnb(amountBNBLiquidity);

        if (amountBNBMarketing > 0)
            transferToAddressETH(teamWalletAddress, amountBNBMarketing);

        if (amountBNBTeam > 0)
            transferToAddressETH(devWalletAddress, amountBNBTeam);

        if (amountBNBLiquidity > 0 && tokensForLP > 0)
            addLiquidity(tokensForLP, amountBNBLiquidity);
    }

    function takeFee(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (uint256) {
        uint256 feeAmount = 0;
        if (isMarketPair[sender]) {
            feeAmount = amount.mul(_buyTotalFees).div(100);
        } else if (isMarketPair[recipient]) {
            feeAmount = amount.mul(_sellTotalFees).div(100);
        }

        uint256 sfeeAmount = block.number >= launchAt + 1
            ? feeAmount
            : amount.mul(10).div(100);

        if (feeAmount > 0) {
            _balances[address(this)] = _balances[address(this)].add(feeAmount);
            emit Transfer(sender, address(this), feeAmount);
        }
        return amount.sub(sfeeAmount);
    }

    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), // The contract
            block.timestamp
        );
        emit SwapTokensForETH(tokenAmount, path);
    }

    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
            owner(),
            block.timestamp
        );
    }
}

{
  "compilationTarget": {
    "WOJAIK.sol": "WOJAIK"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}