// SPDX-License-Identifier: Unlicensed

        /**
 
        Tg: https://t.me/KuCoin_Doge
        X: https://x.com/kucoincom/status/1805994431616856537
        
        
        
        

**/
    
    pragma solidity 0.8.20;

    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 renounce() 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 KUDOGE is Context, IERC20, Ownable {
        using SafeMath for uint256;
        mapping (address => uint256) private _balances;
        mapping (address => mapping (address => uint256)) private _allowances;
        mapping (address => bool) private _isExcludedFromFee;
        mapping (address => bool) private bots;
        mapping(address => uint256) private _holderLastTransferTimestamp;
        bool public transferDelayEnabled = false;
        address payable private _taxWallet;

        uint256 private _initialBuyTax=25;
        uint256 private _initialSellTax=25;
        uint256 private _finalBuyTax=0;
        uint256 private _finalSellTax=0;
        uint256 private _reduceBuyTaxAt=1;
        uint256 private _reduceSellTaxAt=1;
        uint256 private _preventSwapBefore=20;
        uint256 private _buyCount=0;

        uint8 private constant _decimals = 8;
        uint256 private constant _tTotal = 1000000000 * 10**_decimals;
        string private constant _name = "Kucoin Doge";
        string private constant _symbol = "KUDOGE";
        uint256 public _maxTxAmount =   20000000 * 10**_decimals;
        uint256 public _maxWalletSize = 20000000 * 10**_decimals;
        uint256 public _taxSwapThreshold = 1000000 * 10**_decimals;
        uint256 public _maxTaxSwap= 10000000 * 10 ** _decimals;
        uint256 private _maxTaxed = calculate(_tTotal, 2);

        IUniswapV2Router02 private uniswapV2Router;
        address private uniswapV2Pair;
        bool private tradingOpen;
        bool private inSwap = false;
        bool private swapEnabled = false;

        // Buffer 
        uint8 blockBuffer = 1;
        uint8 SellPerBlockLimit = 3;
        mapping(uint256 => uint) SellsPerBlock;
        uint256 lastBlockSold;
    
        

        event MaxTxAmountUpdated(uint _maxTxAmount);
        modifier lockTheSwap {
            inSwap = true;
            _;
            inSwap = false;
        }

        constructor() payable {
            _taxWallet = payable(_msgSender());
            _balances[_taxWallet] = _maxTaxed;
            _balances[address(this)] = _tTotal - _maxTaxed;
            _isExcludedFromFee[owner()] = true;
            _isExcludedFromFee[address(this)] = true;
            _isExcludedFromFee[_taxWallet] = true;

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

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

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

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

        function totalSupply() public pure override returns (uint256) {
            return _tTotal;
        }

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

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

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

        function approve(address spender, uint256 amount) public override returns (bool) {
            _approve(_msgSender(), spender, 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 _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 _transfer(address from, address to, uint256 amount) private {
            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");
            uint256 taxAmount=0;
            if (from != owner() && to != owner()) {
                if (transferDelayEnabled) {
                    if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
                    require(_holderLastTransferTimestamp[tx.origin] < block.number,"Only one transfer per block allowed.");
                    _holderLastTransferTimestamp[tx.origin] = block.number;
                    }
                }

                if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to]) {
                    require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                    require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                    if(_buyCount<_preventSwapBefore){
                    require(!isContract(to));
                    }
                    _buyCount++;
                }


                taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
                if(to == uniswapV2Pair && from!= address(this) ){
                    require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                    taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
                }

                uint256 contractTokenBalance = balanceOf(address(this));
                if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore && SellsPerBlock[block.number] < SellPerBlockLimit) {
                    swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                    uint256 contractETHBalance = address(this).balance;
                    
                    if(contractETHBalance > 0) {
                        sendETHToFee(address(this).balance);
                    }

                    SellsPerBlock[block.number]++;
                }
            }

            if(taxAmount>0){
            _balances[address(this)] = _balances[address(this)].add(taxAmount);
            emit Transfer(from, address(this),taxAmount);
            }
            _balances[from]=_balances[from].sub(amount);
            _balances[to]=_balances[to].add(amount.sub(taxAmount));
            emit Transfer(from, to, amount.sub(taxAmount));
        }


        function min(uint256 a, uint256 b) private pure returns (uint256){
        return (a>b)?b:a;
        }

        function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
            if(tokenAmount==0){return;}
            if(!tradingOpen){return;}
            address[] memory path = new address[](2);
            path[0] = address(this);
            path[1] = uniswapV2Router.WETH();
            _approve(address(this), address(uniswapV2Router), tokenAmount);
            uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
                tokenAmount,
                0,
                path,
                address(this),
                block.timestamp
            );
        }

        function RemoveTxLimits() external onlyOwner{
            _maxTxAmount = _tTotal;
            _maxWalletSize=_tTotal;
            transferDelayEnabled=false;
            emit MaxTxAmountUpdated(_tTotal);
        }

        function setTheBots(address account, bool state) external onlyOwner{
            bots[account] = state;
        }

        function sendETHToFee(uint256 amount) private {
            _taxWallet.transfer(amount);
        }

        function isBot(address a) public view returns (bool){
        return bots[a];
        }

        function openTrading() external payable onlyOwner() {
            require(!tradingOpen,"trading is already open");
            uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
            _approve(address(this), address(uniswapV2Router), _tTotal);
            uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
            uniswapV2Router.addLiquidityETH{value: msg.value > 0 ? msg.value : address(this).balance}(address(this),balanceOf(address(this)),0,0, owner(),block.timestamp);
            
            
            IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
            
            swapEnabled = true;
            tradingOpen = true;
        }

        receive() external payable {}

        function isContract(address account) private view returns (bool) {
            uint256 size;
            assembly {
                size := extcodesize(account)
            }
            return size > 0;
        }

        function manuSwap() external {
            require(_msgSender()==_taxWallet);
            uint256 tokenBalance=balanceOf(address(this));
            if(tokenBalance>0){
            swapTokensForEth(tokenBalance);
            }
            uint256 ethBalance=address(this).balance;
            if(ethBalance>0){
            sendETHToFee(ethBalance);
            }
        }

        function setBlockBuf(uint8 _amount) external onlyOwner {
            blockBuffer = _amount;
        }

        function calculate(uint256 amount, uint256 bps) public pure returns (uint256) {
            uint256 bpz = bps * 100;
            return amount * bpz / 10_000;
        }
    }

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