// SPDX-License-Identifier: MIT
/**

Pioneering Liquidity Solutions in DeFi

Website: 0xliquidityswap.io

Docs: docs.0xliquidityswap.io

Twitter: x.com/0xLiquiditySwap

Telegram: t.me/ZeroXLiquidity

**/
pragma solidity ^0.8.23;
 
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
    );
}
 
contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    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);
    }
 
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
 
}
 
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;
    }
}
 
interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}
 
interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
 
    function factory() external pure returns (address);
 
    function WETH() external pure returns (address);
 
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );
}
 
contract ZeroXLiquidity is Context, IERC20, Ownable {
 
    using SafeMath for uint256;
 
    string private constant _name = "0xLiquidity";
    string private constant _symbol = "0xLP";
    uint8 private constant _decimals = 9;
 
    mapping(address => uint256) private _tOwned;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;
    uint256 private constant MAX = ~uint256(0);
    uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;
    uint256 private _taxFeeOnBuy = 5;
    uint256 private _taxFeeOnSell = 5;
 
    uint256 private _taxFee = _taxFeeOnSell;
 
    uint256 private _previoustaxFee = _taxFee;
 
    address payable private _devAddress;
 
    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;
 
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = true;
 
    uint256 public _maxTxAmount = _tTotal.div(100);
    uint256 public _maxWalletSize = _tTotal.div(100);
    uint256 public _swapTokensAtAmount = 1000 * 10**_decimals;

    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }
 
    constructor(address routerAddress, address devAddress) {
 
        _tOwned[_msgSender()] = _rTotal;
 
        _devAddress = payable(devAddress);

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(routerAddress);
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());
 
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_devAddress] = true;
 
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    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 tokenFromRef(_tOwned[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,
                "the transfer amount exceeds allowance"
            )
        );
        return true;
    }
 
    function tokenFromRef(uint256 rAmount)
        private
        view
        returns (uint256)
    {
        require(
            rAmount <= _rTotal,
            "Amount has to be less than total reflections"
        );
        uint256 currentRate = _getRate();
        return rAmount.div(currentRate);
    }
 
    function remAllFee() private {
        if (_taxFee == 0) return;
        _previoustaxFee = _taxFee;
        _taxFee = 0;
    }
 
    function resAllFee() private {
        _taxFee = _previoustaxFee;
    }
 
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) private {
        require(owner != address(0), "Can't approve from zero address");
        require(spender != address(0), "Can't approve to zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
 
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        require(to != address(0), "Cant transfer to address zero");
        require(amount > 0, "Amount should be above zero");
 
        if (from != owner() && to != owner()) {
 
            if (!tradingOpen) {
                require(from == owner(), "Only owner can trade before trading activation");
            }
 
            require(amount <= _maxTxAmount, "Exceeded max transaction limit");
 
            if(to != uniswapV2Pair) {
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds max wallet balance");
            }
 
            uint256 contractTokenBalance = balanceOf(address(this));
            bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
 
            if(contractTokenBalance >= _maxTxAmount)
            {
                contractTokenBalance = _maxTxAmount;
            }
 
            if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
                swapTokensForEth(contractTokenBalance);
                uint256 contractETHBalance = address(this).balance;
                if (contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }
 
        bool takeFee = true;
 
        if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
            takeFee = false;
        } else {
 
            if(from == uniswapV2Pair && to != address(uniswapV2Router)) {
                _taxFee = _taxFeeOnBuy;
            }
 
            if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
                _taxFee = _taxFeeOnSell;
            }
 
        }
 
        _tokenTransfer(from, to, amount, takeFee);
    }
 
    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 {
        _devAddress.transfer(amount);
    }
 
    function setTrading(bool _tradingOpen) public onlyOwner {
        tradingOpen = _tradingOpen;
    }
 
    function manualSwap() external {
        require(_msgSender() == _devAddress);
        uint256 contractBalance = balanceOf(address(this));
        swapTokensForEth(contractBalance);
    }
 
    function manualSend() external {
        require(_msgSender() == _devAddress);
        uint256 contractETHBalance = address(this).balance;
        sendETHToFee(contractETHBalance);
    }
 
    function _tokenTransfer(
        address sender,
        address recipient,
        uint256 amount,
        bool takeFee
    ) private {
        if (!takeFee) remAllFee();
        _transferStandard(sender, recipient, amount);
        if (!takeFee) resAllFee();
    }
 
    function _transferStandard(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 tTransferAmount,
            uint256 tCom
        ) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(rTransferAmount);
        _takeCom(tCom);
        emit Transfer(sender, recipient, tTransferAmount);
    }
 
    function _takeCom(uint256 tCom) private {
        uint256 currentRate = _getRate();
        uint256 rCom = tCom.mul(currentRate);
        _tOwned[address(this)] = _tOwned[address(this)].add(rCom);
    }
 
    receive() external payable {}
 
    function _getValues(uint256 tAmount)
        private
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        (uint256 tTransferAmount,  uint256 tTeam) =
            _getTValues(tAmount, _taxFee);
        uint256 currentRate = _getRate();
        (uint256 rAmount, uint256 rTransferAmount) =
            _getRValues(tAmount, tTeam, currentRate);
        return (rAmount, rTransferAmount, tTransferAmount, tTeam);
    }
 
    function _getTValues(
        uint256 tAmount,
        uint256 taxFee
    )
        private
        pure
        returns (
            uint256,
            uint256
        )
    {
        uint256 tTeam = tAmount.mul(taxFee).div(100); 
        uint256 tTransferAmount = tAmount.sub(tTeam); 
        return (tTransferAmount, tTeam);
    }
 
    function _getRValues(
        uint256 tAmount,
        uint256 tTeam,
        uint256 currentRate
    )
        private
        pure
        returns (
            uint256,
            uint256
        )
    {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTeam = tTeam.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rTeam);
        return (rAmount, rTransferAmount);
    }
 
    function _getRate() private view returns (uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }
 
    function _getCurrentSupply() private view returns (uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }
 
    function setFee(uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
        require(taxFeeOnBuy >= 0 && taxFeeOnBuy <= 95, "Buy tax must be between 0% and 95%");
        require(taxFeeOnSell >= 0 && taxFeeOnSell <= 95, "Sell tax must be between 0% and 95%");

        _taxFeeOnBuy = taxFeeOnBuy;
        _taxFeeOnSell = taxFeeOnSell;

    }

    function setMinSwapTokens(uint256 swapTokensAtAmount) public onlyOwner {
        _swapTokensAtAmount = swapTokensAtAmount;
    }

    function enabledSwap(bool _swapEnabled) public onlyOwner {
        swapEnabled = _swapEnabled;
    }

    function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
           _maxTxAmount = maxTxAmount;
    }
 
    function setMaxWalletAmount(uint256 maxWalletSize) public onlyOwner {
        _maxWalletSize = maxWalletSize;
    }
 
    function excludeAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromFee[accounts[i]] = excluded;
        }
    }

    function changeDevelopmentAddress(address newDevAddress) public onlyOwner {
        require(newDevAddress != address(0), "New development address cannot be zero address");
        _isExcludedFromFee[_devAddress] = false;
        _devAddress = payable(newDevAddress);
        _isExcludedFromFee[_devAddress] = true;
    }
}