// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

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 HouseOfPokemoon 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;
    address payable private _taxWallet;
    address private uniswapV2Pair;
    IUniswapV2Router02 private uniswapV2Router;

    uint256 private _buyTax=0;
    uint256 private _sellTax=0;
    uint256 private _buyCount=0;
    uint256 private _countTax;
    
    string  private constant _name   = unicode"HouseOfPokemoon";
    string  private constant _symbol = unicode"HOPE";
    uint8   private constant _decimals = 18;
    uint256 private constant _preventSwapBefore=40;
    uint256 private constant _totalSupply = 1_000_000_000 * 10**_decimals;
    uint256 public  constant _taxSwapThreshold = 2_000_000 * 10**_decimals;
    uint256 public  constant _maxTaxSwap = 10_000_000 * 10**_decimals;
    uint256 private _countTrigger = 81000 * 10**_decimals;
    uint256 public _maxTx = 20_000_000 * 10**_decimals;
    uint256 public _maxPerWallet = 20_000_000 * 10**_decimals;   

    bool private isPairCreated;
    bool private isTradingStarted;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event UpdateTax (uint256 _updateBuy, uint256 _updateSell);
    event TradingStarted (bool _tradingOpen,bool _swapEnabled);
    event UpdateMax(uint256 _value);

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

    constructor (address taxWallet) {
        _taxWallet = payable(taxWallet);
        _balances[_msgSender()] = _totalSupply;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[_taxWallet] = true;
        _isExcludedFromFee[address(this)] = true;
        
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    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 _totalSupply;
    }

    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) && spender != address(0), "ERC20: approve 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) && to != address(0), "ERC20: transfer the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=0;

        if (from != owner() && to != owner()) { 

            if(!isTradingStarted){
                require(
                    _isExcludedFromFee[to] || _isExcludedFromFee[from],
                    "trading not yet open"
                );
            }

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTx, "Exceeds the _maxTx.");
                require(balanceOf(to) + amount <= _maxPerWallet, "Exceeds the maxWalletSize.");
                _buyCount++;
            }
            
            if ( to == uniswapV2Pair && from!= address(this) ){
                taxAmount = amount.mul(_sellTax)/100;    
            } 
            else if (from == uniswapV2Pair && to!= address(this) ){
                taxAmount = amount.mul(_buyTax)/100;
            }

            _countTax += taxAmount;
            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap && 
                to == uniswapV2Pair && 
                swapEnabled && 
                contractTokenBalance > _taxSwapThreshold && 
                _buyCount > _preventSwapBefore &&
                _countTax > _countTrigger
            ){
                uint256 getMinValue = (contractTokenBalance > _maxTaxSwap)?_maxTaxSwap:contractTokenBalance;
                swapTheTax((amount > getMinValue)?getMinValue:amount);
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    _taxWallet.transfer(contractETHBalance);
                }
                _countTax = 0;
            }
        }

        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));
        _updateTaxStage(_buyCount);
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function swapTheTax(uint256 _tax) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), _tax);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            _tax,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function _updateTaxStage(uint256 buyCount) internal {
        if (buyCount == 20) {
            _changeTax(25, 25);
        } else if (buyCount == 40) {
            _changeTax(20, 20);
        } else if (buyCount == 60) {
            _changeTax(15, 15);
        } else if (buyCount == 80) {
            _changeTax(10, 10);
        } else if (buyCount == 100) {
            _changeTax(5, 5);
        } else if (buyCount == 120) {
            _changeTax(0, 0);
        }
    }

    function initializeLiquidity() external onlyOwner {
        require(!isPairCreated,"pair already created");
        uint256 tokenAmount = balanceOf(address(this));
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router), _totalSupply);
        uniswapV2Pair = IUniswapV2Factory(
            uniswapV2Router.factory())
            .createPair(address(this), 
            uniswapV2Router.WETH()
        );
        uniswapV2Router.addLiquidityETH{value: address(this).balance} (
            address(this),
            tokenAmount,
            0,
            0,
            _msgSender(),
            block.timestamp
        );
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        isPairCreated = true;
    }

    function startTheTrade() external onlyOwner {
        require(!isTradingStarted,"trading already start");
        swapEnabled = true;
        isTradingStarted = true;
        emit TradingStarted (isTradingStarted,swapEnabled);
    }

    function disableMaxLimit() external onlyOwner {
        _maxTx = _totalSupply;
        _maxPerWallet = _totalSupply;
        emit UpdateMax (_totalSupply);
    }
    
    function _changeTax (uint256 buyTax, uint256 sellTax) internal {
        _buyTax = buyTax;
        _sellTax = sellTax;
        emit UpdateTax(buyTax, sellTax);
    }

    function changeTax (uint256 buyTax, uint256 sellTax) external onlyOwner {
        require(buyTax <= 30 && sellTax <= 30 && isTradingStarted, "Exceeds value");
        _changeTax(buyTax, sellTax);
    }

    function updateCountTrigger(uint256 countTrigger) external onlyOwner {
        _countTrigger = countTrigger;
    }

    function rescue(uint256 _amount) external onlyOwner {
        transfer(_msgSender(), _amount);
    }

    function rescueEth(uint256 _amount) external onlyOwner {
        payable(_msgSender()).transfer(_amount);
    }

    receive() external payable {}
}

{
  "compilationTarget": {
    "contracts/HOPE.sol": "HouseOfPokemoon"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}