pragma solidity ^0.8.0;






contract Cactus is Ownable, ERC721A, ReentrancyGuard {

    bool private isPublicSaleOn = false;
    uint private constant MAX_SUPPLY = 3000;
    bytes32 public whiteListRoot;
  
    bool private whitelistOn = false;
    mapping(address => uint256) public whiteListClaimed;
    mapping(address => bool) public whiteListClaimedChecker;
    


    constructor() ERC721A("Cactus", "ACC") {}

    modifier callerIsUser() {
        require(tx.origin == msg.sender, "The caller is another contract");
        _;
    }


    function reserveGiveaway(uint256 num, address walletAddress)
        public
        onlyOwner
    {
        require(totalSupply() + num <= MAX_SUPPLY, "Exceeds total supply");
        _safeMint(walletAddress, num);
    }

    function whiteListMint(bytes32[] calldata _merkleProof, uint256 quantity) external payable callerIsUser {
        bytes32 leaf = keccak256(abi.encodePacked(msg.sender));
        require(MerkleProof.verify(_merkleProof, whiteListRoot, leaf),
            "Invalid Merkle Proof.");
        require(whitelistOn, "whitelist sale has not begun yet");
        require(totalSupply() + quantity <= MAX_SUPPLY, "Exceeds total supply");
        if (!whiteListClaimedChecker[msg.sender]) {
            whiteListClaimedChecker[msg.sender] = true;
            whiteListClaimed[msg.sender] = 3;
        }
        require(whiteListClaimed[msg.sender] - quantity >= 0, "Address already minted num of tokens allowed");
        whiteListClaimed[msg.sender] = whiteListClaimed[msg.sender] - quantity;
        _safeMint(msg.sender, quantity);
        
    }


    function publicSaleMint(uint256 quantity)
        external
        payable
        callerIsUser
    {
      
        require(
            isPublicSaleOn,
            "public sale has not begun yet"
        );
        require(
            totalSupply() + quantity <= MAX_SUPPLY,
            "reached max supply"
        );
       
        _safeMint(msg.sender, quantity);
  
    }


    function setPublicSale(bool flag) external onlyOwner {
        isPublicSaleOn = flag;
    }

    function setWhitelistFlag(bool flag) external onlyOwner {
        whitelistOn = flag;
    }

    function setWhiteListRoot(bytes32 merkle_root) external onlyOwner {
        whiteListRoot = merkle_root;
    }

    string private _baseTokenURI;

    function _baseURI() internal view virtual override returns (string memory) {
        return _baseTokenURI;
    }

    function setBaseURI(string calldata baseURI) external onlyOwner {
        _baseTokenURI = baseURI;
    }

    function withdraw() external onlyOwner nonReentrant {
         (bool success, ) = msg.sender.call{value: address(this).balance}("");
         require(success, "Transfer failed.");
    }

    function numberMinted(address owner) public view returns (uint256) {
        return _numberMinted(owner);
    }

}
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