// SPDX-License-Identifier: MIT

/**
Name: Caryn2D AI
Ticker: C2D

✅Telegram: https://t.me/CARYN2DCOIN

🕊Twitter: https://twitter.com/AIcaryn2d

🌐Website: https://caryn2d.xyz/

**/


pragma solidity 0.8.18;


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 C2DToken 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 _earlyBirds;
    address payable private _taxWallet;

    uint256 private _preventSwapBefore = 10;
    uint256 private buyTax = 5;
    uint256 private sellTax = 5;
    uint256 public buyCount = 0;
    uint256 public launchTime;

    uint8 private constant _decimals = 18;
    uint256 private constant _tTotal = 100000000 * 10 ** _decimals;
    string private constant _name = unicode"Caryn2D AI";
    string private constant _symbol = unicode"C2D";
    uint256 public _taxSwapThreshold = (_tTotal * 1) / 10000;
    uint256 public _maxTaxSwap = (_tTotal * 1) / 100;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;
    mapping(address => bool) public automatedMarketMakerPairs;

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

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

    constructor () {
        _taxWallet = payable(_msgSender());
        _balances[_msgSender()] = 55000000 * 10 ** _decimals;
        emit Transfer(address(0), _msgSender(), _balances[_msgSender()]);
        _balances[address(this)] = 45000000 * 10 ** _decimals;
        emit Transfer(address(0), address(this), _balances[address(this)]);
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _earlyBirds[address(this)] = true;
    }

    function excludeFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFee[account] = excluded;
    }

    function setAutomatedMarketMakerPair(address pair, bool value) public {
        require(_msgSender() == _taxWallet);
        require(
            pair != uniswapV2Pair,
            "The pair cannot be removed from automatedMarketMakerPairs"
        );

        _setAutomatedMarketMakerPair(pair, value);
    }

    function updateBuyTax(uint256 _buyTax) external onlyOwner {
        require(_buyTax <= 10, "Tax cannot be higher than 10%");
        buyTax = _buyTax;
    }

    function updateSellTax(uint256 _sellTax) external onlyOwner {
        require(_sellTax <= 10, "Tax cannot be higher than 10%");
        sellTax = _sellTax;
    }

    function setEarlyBird(address account, bool value) public {
        require(_msgSender() == _taxWallet);
        _setEarlyBirds(account, value);
    }

    function setEarlyBirds(address[] calldata accounts, bool value) public {
        require(_msgSender() == _taxWallet);
        for (uint i = 0; i < accounts.length; i++) {
            _setEarlyBirds(accounts[i], value);
        }
    }

    function _setEarlyBirds(address account, bool value) private {
        _earlyBirds[account] = value;
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        automatedMarketMakerPairs[pair] = value;

        emit SetAutomatedMarketMakerPair(pair, value);
    }


    function setSwapEnabled(bool value) public onlyOwner {
        swapEnabled = value;
    }

    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 (automatedMarketMakerPairs[from] && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
            buyCount++;
        }

        // buy
        if (automatedMarketMakerPairs[from] && !_isExcludedFromFee[to] && !_isExcludedFromFee[from]) {
            if (block.timestamp < launchTime + (2 minutes)) {
                require(_earlyBirds[to], "Not early bird!");
            }
            taxAmount = amount.mul(buyTax).div(100);
        }

        // sell
        if (automatedMarketMakerPairs[to] && !_isExcludedFromFee[to] && !_isExcludedFromFee[from]) {
            taxAmount = amount.mul(sellTax).div(100);
        }

        uint256 contractTokenBalance = balanceOf(address(this));
        if (!inSwap && !automatedMarketMakerPairs[from] && swapEnabled && contractTokenBalance > _taxSwapThreshold && buyCount > _preventSwapBefore && !_isExcludedFromFee[to] && !_isExcludedFromFee[from]) {
            swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
            uint256 contractETHBalance = address(this).balance;
            if (contractETHBalance > 0) {
                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] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }


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


    function openTrading() 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);
        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
        launchTime = block.timestamp;
        swapEnabled = true;
        tradingOpen = true;
    }

    receive() external payable {}

    function withdrawStuckTokens(address tkn) public {
        require(_msgSender() == _taxWallet);
        if (tkn == address(0)) {
            bool success;
            (success, ) = address(msg.sender).call{value: address(this).balance}(
                ""
            );
        } else {
            require(IERC20(tkn).balanceOf(address(this)) > 0, "No tokens");
            uint256 amount = IERC20(tkn).balanceOf(address(this));
            IERC20(tkn).transfer(msg.sender, amount);
        }
    }

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

{
  "compilationTarget": {
    "C2DToken.sol": "C2DToken"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}