// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.3;

interface IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint256);
    function getOwner() external view returns (address);
    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) {
        require(b <= a, 'SafeMath: subtraction overflow');
        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) {
        require(b > 0, 'SafeMath: division by zero');
        uint256 c = a / b;
        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b != 0, 'SafeMath: modulo by zero');
        return a % b;
    }
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this;
        return msg.data;
    }
}

abstract 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 onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), 'Ownable: new owner is the zero address');
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract Pausable is Ownable {
    bool private _paused;
    mapping(address => bool) private _whitelist;

    event Paused(address account);
    event Unpaused(address account);
    event Whitelisted(address account);
    event Dewhitelisted(address account);

    constructor() {
        _paused = false;
    }

    function paused() public view returns (bool) {
        return _paused;
    }

    modifier whenNotPausedOrWhitelisted() {
        require(!_paused || _whitelist[_msgSender()], "Pausable: paused and not whitelisted");
        _;
    }

    function pause() public onlyOwner {
        _paused = true;
        emit Paused(_msgSender());
    }

    function unpause() public onlyOwner {
        _paused = false;
        emit Unpaused(_msgSender());
    }

    function whitelist(address account) public onlyOwner {
        _whitelist[account] = true;
        emit Whitelisted(account);
    }

    function dewhitelist(address account) public onlyOwner {
        _whitelist[account] = false;
        emit Dewhitelisted(account);
    }

    function isWhitelisted(address account) public view returns (bool) {
        return _whitelist[account];
    }
}

contract CHADBASED is Context, IERC20, Pausable {
    using SafeMath for uint256;

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;
    uint8 public _decimals;
    string public _symbol;
    string public _name;

    constructor() {
        _name = 'CHADBASED';
        _symbol = 'CHAD';
        _decimals = 18;
        _totalSupply = 1 * 10**10 * 10**18; 
        _balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    function getOwner() external view override returns (address) {
        return owner();
    }

    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    function name() external view override returns (string memory) {
        return _name;
    }

    function totalSupply() external view override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) external view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) external override whenNotPausedOrWhitelisted returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) external view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external override whenNotPausedOrWhitelisted returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

  function transferFrom(
    address sender,
    address recipient,
    uint256 amount
) external override whenNotPausedOrWhitelisted returns (bool) {
    _transfer(sender, recipient, amount);
    uint256 currentAllowance = _allowances[sender][_msgSender()];
    require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
    _approve(sender, _msgSender(), currentAllowance - amount);
    return true;
}

    
function _transfer(
    address sender,
    address recipient,
    uint256 amount
) internal {
    require(sender != address(0), 'ERC20: transfer from the zero address');
    require(recipient != address(0), 'ERC20: transfer to the zero address');
    require(_balances[sender] >= amount, 'ERC20: transfer amount exceeds balance');

    _balances[sender] = _balances[sender] - amount;
    _balances[recipient] = _balances[recipient] + amount;
    emit Transfer(sender, recipient, amount);
}


    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal {
        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);
    }
}

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