/**
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 ( /( ( /( ( /(  
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|_|\_|\___/_/\_\ 
*/

// SPDX-License-Identifier: Unlicensed

pragma solidity ^0.8.9;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

abstract contract Ownable {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        address msgSender = msg.sender;
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == msg.sender, "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;
    }
}

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);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

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 NITRO is Context, Ownable, IERC20, IERC20Metadata { 
    string private constant _name = "NITRO";
    string private constant _symbol = "NOX";
    uint8 private constant _decimals = 9;
    uint256 private constant MAX = ~uint256(0);
    uint256 private constant _tTotal = 100000000000000 * 10 ** _decimals;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;
    uint256 public _redisFeeOnBuy = 1;
    uint256 public _redisFeeOnSell = 1;
    uint256 private _redisFee = _redisFeeOnSell;
    uint256 private _previousredisFee = _redisFee;
    uint256 public _taxFeeOnBuy = 2;
    uint256 public _taxFeeOnSell = 2;
    uint256 private _taxFee = _taxFeeOnSell;
    uint256 private _previoustaxFee = _taxFee;
    uint256 public _maxWalletSize = 1000000000000 * 10 ** _decimals;
    uint256 public _maxTxAmount = 250000000000 * 10 ** _decimals;
    uint256 public _swapTokensAtAmount = 1000000 * 10 ** _decimals;
 
    mapping(address => uint256) private _rOwned;
    mapping(address => uint256) private _tOwned;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;
    mapping (address => bool) public frozenAccount;
    mapping(address => bool) public bots;

    event FrozenAccount(address target, bool frozen);

    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;
    address public deadAddress = 0x000000000000000000000000000000000000dEaD;
    address public vbAddress = 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B;
    address payable public communityWallet = payable(0x4dE9D9Ab5d1847D90319A4e4F73aAC5F71F8eC4a);
 
    bool private tradingOpen = true;
    bool private swapEnabled = true;
    bool private inSwap = false;
 
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }
 
    constructor() {
 
        _rOwned[_msgSender()] = _rTotal;
 
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);//
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
 
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[communityWallet] = true;
 
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual override returns (uint8) {
        return _decimals;
    }
 
    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }
 
    function balanceOf(address account) public view override returns (uint256) {
        return tokenFromReflection(_rOwned[account]);
    }
 
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }
 
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }
 
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }
 
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        _approve(sender, _msgSender(), currentAllowance - amount);
        return true;
    }
 
    function tokenFromReflection(uint256 rAmount) public view virtual returns (uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate = _getRate();
        return rAmount / currentRate;
    }
 
    function removeAllFee() private {
        if (_redisFee == 0 && _taxFee == 0) return;
         _previousredisFee = _redisFee;
        _previoustaxFee = _taxFee;
        _redisFee = 0;
        _taxFee = 0;
    }
 
    function restoreAllFee() private {
        _redisFee = _previousredisFee;
        _taxFee = _previoustaxFee;
    }
 
    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");
 
        if (from != owner() && to != owner()) {
 
            if (!tradingOpen) {
                require(from == owner(), "TOKEN: This account cannot send tokens until trading is enabled");
            }
 
            require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
            require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!");
 
            if(to != uniswapV2Pair) {
                require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
            }
 
            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)) {
                _redisFee = _redisFeeOnBuy;
                _taxFee = _taxFeeOnBuy;
            }
            if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
                _redisFee = _redisFeeOnSell;
                _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 {
        communityWallet.transfer(amount);
    }
 
    function manualSwap() external {
        require(_msgSender() == communityWallet);
        uint256 contractBalance = balanceOf(address(this));
        swapTokensForEth(contractBalance);
    }
 
    function manualSend() external {
        require(_msgSender() == communityWallet);
        uint256 contractETHBalance = address(this).balance;
        sendETHToFee(contractETHBalance);
    }
 
    function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
        if (!takeFee) removeAllFee();
        _transferStandard(sender, recipient, amount);
        if (!takeFee) restoreAllFee();
    }
 
    function _transferStandard(address sender, address recipient, uint256 tAmount) private { 
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount);
        _rOwned[sender] -= rAmount;
        _rOwned[recipient] += rTransferAmount;
        _takeTeam(tTeam);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }
 
    function _takeTeam(uint256 tTeam) private {
        uint256 currentRate = _getRate();
        uint256 rTeam = tTeam * currentRate;
        _rOwned[address(this)] += rTeam;
    }
 
    function _reflectFee(uint256 rFee, uint256 tFee) private {
        _rTotal -= rFee;
        _tFeeTotal += tFee;
    }
 
    receive() external payable {}
 
    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
        (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _redisFee, _taxFee);
        uint256 currentRate = _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate);
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
    }
 
    function _getTValues(uint256 tAmount, uint256 redisFee, uint256 taxFee) private pure returns (uint256, uint256, uint256) {
        uint256 tFee = tAmount * redisFee / 100;
        uint256 tTeam = tAmount * taxFee / 100;
        uint256 tTransferAmount = tAmount - tFee - tTeam;
        return (tTransferAmount, tFee, tTeam);
    }
 
    function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
        uint256 rAmount = tAmount * currentRate;
        uint256 rFee = tFee * currentRate;
        uint256 rTeam = tTeam * currentRate;
        uint256 rTransferAmount = rAmount - rFee - rTeam;
        return (rAmount, rTransferAmount, rFee);
    }
 
    function _getRate() private view returns (uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply / tSupply;
    }
 
    function _getCurrentSupply() private view returns (uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        if (rSupply < _rTotal / _tTotal) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        return true;
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {
    }

    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {
    }
 
    function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
        require(redisFeeOnBuy >= 0 && redisFeeOnBuy <= 5, "Buy rewards must be between 0% and 5%");
        require(taxFeeOnBuy >= 0 && taxFeeOnBuy <= 5, "Buy tax must be between 0% and 5%");
        require(redisFeeOnSell >= 0 && redisFeeOnSell <= 5, "Sell rewards must be between 0% and 5%");
        require(taxFeeOnSell >= 0 && taxFeeOnSell <= 5, "Sell tax must be between 0% and 5%");
        _redisFeeOnBuy = redisFeeOnBuy;
        _redisFeeOnSell = redisFeeOnSell;
        _taxFeeOnBuy = taxFeeOnBuy;
        _taxFeeOnSell = taxFeeOnSell;
    }

    function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
      if (maxWalletSize > 250000000000 * 10 ** _decimals) {
           _maxWalletSize = maxWalletSize;
        }
    }

    function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
      if (maxTxAmount > 50000000000 * 10 ** _decimals) {
           _maxTxAmount = maxTxAmount;
        }
    }

    function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
      if (swapTokensAtAmount < 5000000 * 10 ** _decimals) {
           _swapTokensAtAmount = swapTokensAtAmount;
        }
    }

    function setTrading(bool _tradingOpen) public onlyOwner {
        tradingOpen = _tradingOpen;
    }
 
    function toggleSwap(bool _swapEnabled) public onlyOwner {
        swapEnabled = _swapEnabled;
    }
 
    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }

    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }

    function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromFee[accounts[i]] = excluded;
        }
    }

    function freezeAccount(address target, bool freeze) public onlyOwner {
        frozenAccount[target] = freeze;
        emit FrozenAccount(target, freeze);
    }

    function blockBots(address[] memory bots_) public onlyOwner {
        for (uint256 i = 0; i < bots_.length; i++) {
            bots[bots_[i]] = true;
        }
    }
 
    function unblockBot(address notbot) public onlyOwner {
        bots[notbot] = false;
    }

    function setCommunityWallet(address payable newWallet) public onlyOwner {
        communityWallet = newWallet;
    }
}