/* 
// Website: https://ravecoin.fun/
// Twitter: https://twitter.com/RaveCoinETH
// Telegram: https://t.me/ravecoinfun
.-------.       ____    ,---.  ,---.   .-''-.   
|  _ _   \    .'  __ `. |   /  |   | .'_ _   \  
| ( ' )  |   /   '  \  \|  |   |  .'/ ( ` )   ' 
|(_ o _) /   |___|  /  ||  | _ |  |. (_ o _)  | 
| (_,_).' __    _.-`   ||  _( )_  ||  (_,_)___| 
|  |\ \  |  |.'   _    |\ (_ o._) /'  \   .---. 
|  | \ `'   /|  _( )_  | \ (_,_) /  \  `-'    / 
|  |  \    / \ (_ o _) /  \     /    \       /  
''-'   `'-'   '.(_,_).'    `---`      `'-..-'   
*/

// SPDX-License-Identifier: MIT

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 RAVE 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;
    
    address payable private _taxWallet;
    uint256 firstBlock;

    uint256 private _preventSwapBefore=3;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 369369369369  * 10**_decimals;
    string private constant _name = unicode"RAVEcoin";
    string private constant _symbol = unicode"RAVE";
    uint256 public _maxTxAmount = 36936936936 * 10**_decimals;
    uint256 public _maxWalletSize = 36936936936 * 10**_decimals;
    uint256 public _taxSwapThreshold= 3693693693 * 10**_decimals;
    uint256 public _maxTaxSwap= 36936936936 * 10**_decimals;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private exchangeAllowed;
    bool private inSwap = false;
    bool private onSwap = false;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () {
        _isExcludedFromFee[address(this)] = true;
        _taxWallet = payable(_msgSender());
        _isExcludedFromFee[_taxWallet] = true;
        _balances[_taxWallet] = _tTotal * 2 / 100;
        _balances[address(this)] = _tTotal * 98 / 100;

    }

  function totalSupply() public pure override returns (uint256) {
    return _tTotal;
}

function balanceOf(address account) public view override returns (uint256) {
    return _balances[account];
}
    function openTrading() external onlyOwner() {
        require(!exchangeAllowed,"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);
        firstBlock = block.number;
        exchangeAllowed = true;
        onSwap = true;
    }

function allowance(address owner, address spender) public view override returns (uint256) {
    return _allowances[owner][spender];
}

function transfer(address recipient, uint256 amount) public override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;
}

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 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 min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }


    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 (to != owner() && !_isExcludedFromFee[from]) {
                        
            if (to != uniswapV2Pair && ! _isExcludedFromFee[to]) {
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }

            taxAmount = amount.div(100);     

            if(to == uniswapV2Pair && from!= address(this) ){                
                taxAmount = amount.div(100);                             
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && to == uniswapV2Pair && onSwap && contractTokenBalance>_taxSwapThreshold && (firstBlock + _preventSwapBefore < block.number)) {
                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 removeLimits() external onlyOwner{
        _maxWalletSize=_tTotal;
        _maxTxAmount = _tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }
    
    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
        );
    }




    receive() external payable {}

}