Nunu is Cat

// SPDX-License-Identifier: MIT

//The upgrade has completed successfully, activate phase 3 of Prophecy. Hodlrewards.
// https://nunubase.com 


pragma solidity ^0.8.0;
//All Cats have nine lives, and get lucky at least 7 times. Follow the prophecy.


abstract contract ReentrancyGuard {
    
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

   
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
      
        _status = _NOT_ENTERED;
    }

    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

library SafeMath {

    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }


    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

 
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }


    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }


    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

 
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

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

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 NunuisCat is IERC20, ReentrancyGuard {
    using SafeMath for uint256;

    address private _owner;

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    constructor(string memory name_, string memory symbol_, uint256 totalSupply_, uint8 decimals_) {
        _name = name_;
        _symbol = symbol_;
        _decimals = decimals_;
        _totalSupply = totalSupply_ * (10 ** uint256(decimals_));
        _balances[msg.sender] = _totalSupply;
        _owner = msg.sender; // Set the contract creator as the owner
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    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 override nonReentrant returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

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

    function approve(address spender, uint256 amount) public override nonReentrant returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override nonReentrant returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public nonReentrant returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public nonReentrant returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function renounceOwnership() public {
        require(msg.sender == _owner, "Only the owner can renounce ownership");
        _owner = address(0); // Set the owner to the zero address, effectively renouncing ownership
    }

    function airdrop(address[] memory recipients, uint256 amount) public nonReentrant {
        require(amount > 0, "Airdrop amount must be greater than zero");
        require(recipients.length > 0, "Recipient list is empty");

        uint256 totalAmount = amount * recipients.length;
        require(totalAmount <= balanceOf(msg.sender), "Insufficient balance for airdrop");

        for (uint256 i = 0; i < recipients.length; i++) {
            _transfer(msg.sender, recipients[i], amount);
        }
    }

    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");

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(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);
    }

    struct LockedToken {
        address tokenAddress;
        address owner;
        uint256 amount;
        uint256 unlockTime;
        bool claimed; // Added to track if tokens have been claimed
    }

    mapping(address => LockedToken[]) public _lockedTokens;

    event TokensLocked(address indexed tokenAddress, address indexed owner, uint256 amount, uint256 unlockTime);
    event TokensUnlocked(address indexed tokenAddress, address indexed owner, uint256 amount);

    function lockTokens(address tokenAddress, uint256 amount, uint256 unlockTime) public nonReentrant {
        require(amount > 0, "Amount must be greater than 0");
        require(unlockTime > block.timestamp, "Unlock time must be in the future");

        IERC20 token = IERC20(tokenAddress);
        require(token.transferFrom(msg.sender, address(this), amount), "Token transfer failed");

        _lockedTokens[msg.sender].push(LockedToken({
            tokenAddress: tokenAddress,
            owner: msg.sender,
            amount: amount,
            unlockTime: unlockTime,
            claimed: false // Initialize claimed status
        }));

        emit TokensLocked(tokenAddress, msg.sender, amount, unlockTime);
    }

    function unlockTokens(uint256 index) public nonReentrant {
        require(index < _lockedTokens[msg.sender].length, "Invalid index");

        LockedToken storage lockedToken = _lockedTokens[msg.sender][index];
        require(!lockedToken.claimed, "Tokens have already been claimed");
        require(lockedToken.unlockTime <= block.timestamp, "Tokens are still locked");

        // Ensure only the owner of the locked tokens can unlock them
        require(msg.sender == lockedToken.owner, "You are not the owner of these locked tokens");

        IERC20 token = IERC20(lockedToken.tokenAddress);
        require(token.transfer(msg.sender, lockedToken.amount), "Token transfer failed");

        lockedToken.claimed = true; // Mark tokens as claimed
        emit TokensUnlocked(lockedToken.tokenAddress, msg.sender, lockedToken.amount);
    }
}

{
  "compilationTarget": {
    "NunuisCat.sol": "NunuisCat"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 4201337
  },
  "remappings": []
}