cryptohunks.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract CryptoHunks is ERC721Enumerable, Ownable {
    using Counters for Counters.Counter;
    Counters.Counter private _tokenIds;

    uint256 public MAX_HUNKS;
    uint256 public constant hunkPrice = 1000000000000000; //0.01 ETH
    
    constructor(uint256 maxNftSupply) ERC721("CryptoHunks", "CHUNKS") {
        MAX_HUNKS = maxNftSupply;
    }

    function withdraw() public onlyOwner {
        uint balance = address(this).balance;
        payable(msg.sender).transfer(balance);
    }

    function mintHunk() public payable {
        require(totalSupply() + 1 <= MAX_HUNKS, "Purchase would exceed max supply of hunks");
        require(hunkPrice <= msg.value, "Insufficient funds provided");

        uint256 mintIndex = totalSupply();
        if (totalSupply() < MAX_HUNKS) {
            _safeMint(msg.sender, mintIndex);
        }
    }
}