// SPDX-License-Identifier: GPL-3.0

/**

    ExpandedNFTs

 */

pragma solidity ^0.8.19;

import {ERC721Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import {IERC721Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
import {IERC2981Upgradeable, IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {AddressUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import {StringsUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";

import {IExpandedNFT} from "./IExpandedNFT.sol";
/**
    This is a smart contract for handling dynamic contract minting.

    @dev This allows creators to mint a unique serial drop of an expanded NFT within a custom contract
    @author Zien
    Repository: https://github.com/joinzien/expanded-nft
*/
contract ExpandedNFT is
    ERC721Upgradeable,
    IExpandedNFT,
    IERC2981Upgradeable,
    OwnableUpgradeable
{
    using StringsUpgradeable for uint256;

    enum WhoCanMint{ NOT_FOR_SALE, ALLOWLIST, ANYONE }

    enum ExpandedNFTStates{ UNMINTED, RESERVED, MINTED, REDEEM_STARTED, REDEEMED }
    
    event PriceChanged(uint256 amount);
    event EditionSold(uint256 price, address owner);
    event WhoCanMintChanged(WhoCanMint minters);

    // State change events
    event RedeemStarted(uint256 tokenId);
    event ProductionComplete(uint256 tokenId);
    event DeliveryAccepted(uint256 tokenId);

    /// @title EIP-721 Metadata Update Extension

    /// @dev This event emits when the metadata of a token is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFT.
    event MetadataUpdate(uint256 _tokenId);

    /// @dev This event emits when the metadata of a range of tokens is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFTs.    
    event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); 

    struct PerToken { 
        ExpandedNFTStates state;

        // Who reserved this
        address reservedBy;

        // Metadata
        string mintedMetadataUrl;
        string redeemedMetadataUrl;
    }

    struct Pricing { 
        // Royalty amount in bps
        uint256 royaltyBPS;

        // Split amount to the platforms. the artist in bps
        uint256 splitBPS;

        // Price for allow list sales
        uint256 allowListSalePrice;

        // Limit for allow list sales
        uint256 allowListMintLimit;

        // Price for general sales
        uint256 generalMintLimit;   

        // Allow list Addresses allowed to mint edition
        mapping(address => bool) allowListMinters;
        address[] allowList;   

        // The number on the allow list
        uint256 allowListCount;

        // Who can currently mint
        WhoCanMint whoCanMint;

        // Mint counts for each address
        mapping(address => uint256) mintCounts;      

        // Annual pass address
        IERC721Upgradeable annualPassAddress;

        // Lifetime pass address
        IERC721Upgradeable lifetimePassAddress;

        // Annual pass price
        uint256 annualPassAllowListPrice; 
        uint256 annualPassGeneralPrice; 

        // Lifetime pass discount
        uint256 lifetimePassAllowListPrice;  
        uint256 lifetimePassGeneralPrice;                                            
    }

    // Artists wallet address
    address private _artistWallet;

    // Per Token data
    mapping(uint256 => PerToken) private _perTokenMetadata;

    // Total size of the drop that can be minted
    uint256 public dropSize;
    uint256 private _claimCount; 

    // Pricing
    Pricing private _pricing;
    uint256 public salePrice;

    string private _baseDir;

    // Reservations
    mapping(address => uint256)  private _resevationCount;
    mapping(address => uint256[]) private _resevations;   

    bool private _randomMint;
    uint256 private _currentIndex;

    // Global constructor for factory
    constructor() {
        _pricing.whoCanMint = WhoCanMint.NOT_FOR_SALE;

        _disableInitializers();
    }

    /**
      @param _owner wallet addres for the user that owns and can mint the drop, gets royalty and sales payouts and can update the base url if needed.
      @param artistWallet wallet address for thr User that created the drop
      @param _name Name of drop, used in the title as "$NAME NUMBER/TOTAL"
      @param _symbol Symbol of the new token contract
      @param baseDirectory The base directory fo the metadata
      @param _dropSize Number of editions that can be minted in total. 
      @param randomMint Mint in an random order   
      @dev Function to create a new drop. Can only be called by the allowed creator
           Sets the only allowed minter to the address that creates/owns the drop.
           This can be re-assigned or updated later
     */
    function initialize(
        address _owner,
        address artistWallet,
        string memory _name,
        string memory _symbol,
        string memory baseDirectory,
        uint256 _dropSize,
        bool randomMint
    ) public initializer {
        require(_dropSize > 0, "Drop size must be > 0");

        __ERC721_init(_name, _symbol);
        __Ownable_init();

        // Set ownership to original sender of contract call
        transferOwnership(_owner);

        _artistWallet = artistWallet;
        _baseDir = baseDirectory;
        dropSize = _dropSize;

        // Set edition id start to be 1 not 0
        _claimCount = 0; 
        _currentIndex = 1;
        _randomMint = randomMint;
    }

    /// @dev returns the base directory string
    function baseDir() public view returns (string memory) {
        return _baseDir;
    }
    
    /// @dev returns the number of minted tokens within the drop
    function totalSupply() public view returns (uint256) {
        return _claimCount;
    }

    /// @dev returns the royalty BPS
    function getRoyaltyBPS() public view returns (uint256) {
        return _pricing.royaltyBPS;
    }

    /// @dev returns the split BPS
    function getSplitBPS() public view returns (uint256) {
        return _pricing.splitBPS;
    }

    /// @dev returns the allow list sale price
    function getAllowListPrice() public view returns (uint256) {
        return _pricing.allowListSalePrice;
    }

    /// @dev returns the allow list mint limit
    function getAllowListMintLimit() public view returns (uint256) {
        return _pricing.allowListMintLimit;
    }

    /// @dev returns the number on the allow list
    function getAllowListCount() public view returns (uint256) {
        return _pricing.allowListCount;
    }    

    /// @dev returns the general mint limit
    function getGeneralMintLimit() public view returns (uint256) {
        return _pricing.generalMintLimit;
    }

    /// @dev returns the Annual pass address
    function getAnnualPassAddress() public view returns (address) {
        return address(_pricing.annualPassAddress);
    }

    /// @dev returns the Lifetime pass address
    function getLifetimePassAddress() public view returns (address) {
        return address(_pricing.lifetimePassAddress);
    }

    /// @dev returns the Annual pass price
    function getAnnualPassAllowListPrice() public view returns (uint256) {
        return _pricing.annualPassAllowListPrice;
    }

    /// @dev returns the Annual pass price
    function getAnnualPassGeneralPrice() public view returns (uint256) {
        return _pricing.annualPassGeneralPrice;
    }

    /// @dev returns the Lifetime pass price
    function getLifetimeAllowListPassPrice() public view returns (uint256) {
        return _pricing.lifetimePassAllowListPrice;
    }

    /// @dev returns the Lifetime pass price
    function getLifetimePassGeneralPrice() public view returns (uint256) {
        return _pricing.lifetimePassGeneralPrice;
    }

    /// @dev returns mint limit for the address
    function getMintLimit(address wallet) public view returns (uint256) {
        if (wallet == owner()) {
            return numberCanMint();
        }

        if ((_pricing.whoCanMint == WhoCanMint.ALLOWLIST) && (allowListed(wallet) == false)) {
            return 0;
        }

        uint256 currentMintLimit = _currentMintLimit(wallet);

        if (_pricing.mintCounts[wallet]  >= currentMintLimit) {
            return 0;
        }
            
        return (currentMintLimit - _pricing.mintCounts[wallet]);   
    }

    /// @dev returns  if the address can mint
    function canMint(address wallet) public view returns (bool) {
        uint256 currentMintLimit = getMintLimit(wallet);   
        return (currentMintLimit > 0);   
    }

    /// @dev returns if the address is on the allow list
    function allowListed(address wallet) public view returns (bool) {
        return _pricing.allowListMinters[wallet];
    }
   
    /**
      @dev returns the current ETH sales price
           based on who can currently mint.
     */
    function price() public view returns (uint256){
        if (_pricing.whoCanMint == WhoCanMint.ALLOWLIST) {
            // Assuming Lifetime passes have a greater or equal discount to the annual pass 
            if (address(_pricing.lifetimePassAddress) != address(0x0)) {
                if (_pricing.lifetimePassAddress.balanceOf(msg.sender) > 0) {
                    return _pricing.lifetimePassAllowListPrice;   
                }
            }

            if (address(_pricing.annualPassAddress) != address(0x0)) {
                if (_pricing.annualPassAddress.balanceOf(msg.sender) > 0) {
                    return _pricing.annualPassAllowListPrice;
                }
            }

            return _pricing.allowListSalePrice;
        } else if (_pricing.whoCanMint == WhoCanMint.ANYONE) {
            // Assuming Lifetime passes have a greater or equal discount to the annual pass 
            if (address(_pricing.lifetimePassAddress) != address(0x0)) {
                if (_pricing.lifetimePassAddress.balanceOf(msg.sender) > 0) {
                    return _pricing.lifetimePassGeneralPrice;
                }
            }

            if (address(_pricing.annualPassAddress) != address(0x0)) {
                if (_pricing.annualPassAddress.balanceOf(msg.sender) > 0) {
                    return _pricing.annualPassGeneralPrice;
                }
            }

            return salePrice;
        } 
            
        return 0;       
    }

    /**
      @dev returns the current state of the provided token
     */
    function redeemedState(uint256 tokenId) public view returns (uint256) {
        require(tokenId > 0, "tokenID > 0");
        require(tokenId <= dropSize, "tokenID <= drop size");

        return uint256(_perTokenMetadata[tokenId].state);
    }

    /**
        Simple eth-based sales function
        More complex sales functions can be implemented through IExpandedNFT interface
     */

    /**
      @dev This allows the user to purchase an edition
           at the given price in the contract.
     */

    function purchase() external payable returns (uint256) {
        address[] memory toMint = new address[](1);
        toMint[0] = msg.sender;

        return _mintEditionsBody(toMint);  
    }

     /**
      @param to address to send the newly minted edition to
      @dev This mints one edition to the given address by an allowed minter on the edition instance.
     */
    function mintEdition(address to) external payable override returns (uint256) {
        address[] memory toMint = new address[](1);
        toMint[0] = to;

        return _mintEditionsBody(toMint);        
    }

    /**
      @param recipients list of addresses to send the newly minted editions to
      @dev This mints multiple editions to the given list of addresses.
     */
    function mintEditions(address[] memory recipients)
        external payable override returns (uint256)
    {
        return _mintEditionsBody(recipients);
    } 

     /**
      @param to address to send the newly minted edition to
      @param count how many editions to mint      
      @dev This mints one edition to the given address by an allowed minter on the edition instance.
     */
    function mintMultipleEditions(address to, uint256 count) external payable returns (uint256) {
        address[] memory toMint = new address[](count);

        for (uint256 r = 0; r < count; r++) {
            toMint[r] = to;
        }

        return _mintEditionsBody(toMint);        
    }      

    /**
      @param numberToBeMinted Hopw many IDs trying to be minted    
      @dev This mints multiple editions to the given list of addresses.
     */
    function _paymentAmountCorrect(uint256 numberToBeMinted)
        internal returns (bool)
    {
        uint256 paymentAmount = price() * numberToBeMinted;

        if (msg.value == paymentAmount) {
            return (true);
        }

        return (false);
    }

    /**
      @dev This mints multiple editions to the given list of addresses.
     */
    function _getNextReservation()
        internal returns (uint256)
    {
        uint256 index = 0;
        while (_resevations[msg.sender][index] == 0) {
            index++;
        }  

        uint256 currentToken = _resevations[msg.sender][index];

        _resevations[msg.sender][index] = 0;  
        _resevationCount[msg.sender]--;
        _perTokenMetadata[currentToken].reservedBy = address(0);        
        
        return  currentToken;
    }

    /**
      @dev This mints multiple editions to the given list of addresses.
     */
    function _selectAvailableId()
        internal returns (uint256)
    {
        if (_randomMint) {
            uint256 random = uint(keccak256(abi.encodePacked(msg.sender,block.prevrandao,gasleft()))) % dropSize;
            uint256 randomIndex = 1 + random;

            while (_perTokenMetadata[randomIndex].state != ExpandedNFTStates.UNMINTED) {
                randomIndex++;

                if (randomIndex > dropSize)  {
                    randomIndex = 1;
                }
            } 

            return randomIndex;
        }

        uint256 index = _currentIndex;

        while (_perTokenMetadata[index].state != ExpandedNFTStates.UNMINTED) {
            index++;
        } 

        _currentIndex = index;

        return  index;
    }

    /**
      @param recipients list of addresses to send the newly minted editions to
      @dev This mints multiple editions to the given list of addresses.
     */
    function _mintEditionsBody(address[] memory recipients)
        internal returns (uint256)
    {
        require(_isAllowedToMint(), "Needs to be an allowed minter");

        require(recipients.length <= numberCanMint(), "Exceeded supply");
        require((_pricing.mintCounts[msg.sender] + recipients.length) <= _currentMintLimit(msg.sender), "Exceeded mint limit");

        require(_paymentAmountCorrect(recipients.length), "Wrong price");

        uint256 currentToken;

        for (uint256 i = 0; i < recipients.length; i++) {
            if (_resevationCount[msg.sender] > 0) {
                currentToken = _getNextReservation();
            } else {
                currentToken = _selectAvailableId();
            }

            _mint(recipients[i], currentToken);

            _perTokenMetadata[currentToken].state = ExpandedNFTStates.MINTED;
            _pricing.mintCounts[msg.sender]++;
            _claimCount++;

            emit EditionSold(price(), msg.sender);
            emit MetadataUpdate(currentToken);            
        }

        return currentToken;        
    }  

    /**
      @param annualPassAddress Annual pass ERC721 token address. Can be null if no token is in use.
      @param lifetimePassAddress Lifetime pass ERC721 token address. Can be null if no token is in use.
      @param annualPassAllowListPrice the allowlist price when holding an annual pass
      @param annualPassGeneralPrice the general price when holding an annual pass
      @param lifetimePassAllowListPrice the allowlist price when holding an lifetime pass
      @param lifetimePassGeneralPrice the general price when holding an lifetime pass                                                                               
      @dev Set various pricing related values
     */
    function  updateDiscounts(address annualPassAddress, address lifetimePassAddress, 
        uint256 annualPassAllowListPrice, uint256 annualPassGeneralPrice, 
        uint256 lifetimePassAllowListPrice, uint256 lifetimePassGeneralPrice) external onlyOwner { 
        _pricing.annualPassAddress = IERC721Upgradeable(annualPassAddress);
        _pricing.lifetimePassAddress = IERC721Upgradeable(lifetimePassAddress);

        _pricing.annualPassAllowListPrice = annualPassAllowListPrice;
        _pricing.annualPassGeneralPrice = annualPassGeneralPrice;

        _pricing.lifetimePassAllowListPrice = lifetimePassAllowListPrice;  
        _pricing.lifetimePassGeneralPrice = lifetimePassGeneralPrice;     
    }

    /**
      @param _royaltyBPS BPS of the royalty set on the contract. Can be 0 for no royalty.
      @param _splitBPS BPS of the royalty set on the contract. Can be 0 for no royalty. 
      @param _allowListSalePrice Sale price for allow listed wallets
      @param _generalSalePrice SalePrice for the general public     
      @param _allowListMintLimit Mint limit for allow listed wallets
      @param _generalMintLimit Mint limit for the general public                                                                                 
      @dev Set various pricing related values
     */
    function setPricing (
        uint256 _royaltyBPS,
        uint256 _splitBPS,
        uint256 _allowListSalePrice,  
        uint256 _generalSalePrice,
        uint256 _allowListMintLimit,
        uint256 _generalMintLimit             
    ) external onlyOwner {  
        _pricing.royaltyBPS = _royaltyBPS;
        _pricing.splitBPS = _splitBPS;

        _pricing.allowListSalePrice = _allowListSalePrice;
        salePrice = _generalSalePrice;

        _pricing.allowListMintLimit = _allowListMintLimit;
        _pricing.generalMintLimit = _generalMintLimit;

        emit PriceChanged(salePrice);
    }

    /**
      @param wallets A list of wallets
      @param tokenIDs A list of tokenId to reserve                                                                           
      @dev Reserve an edition for a wallet
     */
    function reserve (address[] calldata wallets, uint256[] calldata tokenIDs)  external onlyOwner {  
        require(wallets.length == tokenIDs.length, "Lists length must match");

        for (uint256 i = 0; i < wallets.length; i++) {
            require(_perTokenMetadata[tokenIDs[i]].state == ExpandedNFTStates.UNMINTED, "Needs to be unminted");

            _perTokenMetadata[tokenIDs[i]].reservedBy = wallets[i];
            _perTokenMetadata[tokenIDs[i]].state = ExpandedNFTStates.RESERVED;
            _resevationCount[wallets[i]]++;
            _resevations[wallets[i]].push(tokenIDs[i]); 
        }
    }

    /**
      @param tokenIDs A list of tokenId to unreserve                                                                           
      @dev Unreserve an edition for a wallet
     */
    function unreserve (uint256[] calldata tokenIDs) external onlyOwner {  
        for (uint256 i = 0; i < tokenIDs.length; i++) {
            require(_perTokenMetadata[tokenIDs[i]].state == ExpandedNFTStates.RESERVED, "Not reserved");

            address wallet = _perTokenMetadata[tokenIDs[i]].reservedBy;
            uint256 index = 0;
            while (_resevations[wallet][index] != tokenIDs[i]) {
                index++;
            }

            _resevations[wallet][index] = 0;  

            _resevationCount[_perTokenMetadata[tokenIDs[i]].reservedBy]--;
            _perTokenMetadata[tokenIDs[i]].reservedBy = address(0);
            _perTokenMetadata[tokenIDs[i]].state = ExpandedNFTStates.UNMINTED;
        }
    }

    /**
      @param tokenID the tokenId to check                                                                           
      @dev Unreserve an edition for a wallet
     */
    function isReserved (uint256 tokenID) external view returns (bool) {  
        return _perTokenMetadata[tokenID].reservedBy != address(0);
    }

    /**
      @param tokenID the tokenId to check                                                                           
      @dev who reserved the provided ID
     */
    function whoReserved (uint256 tokenID) external view returns (address) {  
        return _perTokenMetadata[tokenID].reservedBy;
    }
 
    /**
      @param wallet The wallet being checked                                                                          
      @dev returns the number of reservations for this wallet
    */
    function getReservationsCount(address wallet) public view returns (uint256) {           
        return _resevationCount[wallet];   
    }

    /**
      @param wallet The wallet being checked                                                                          
      @dev returns the IDs reserved by the wallet
    */
    function getReservationsList(address wallet) public view returns (uint256[] memory) {           
        return _resevations[wallet];   
    }   

    /**                                                                      
      @dev returns the wallets on the allow list
    */
    function getAllowList() public view returns (address[] memory) {           
        return _pricing.allowList;   
    }   

    /**
      @dev returns the current limit on edition that 
           can be minted by one wallet
     */
    function _currentMintLimit(address wallet) internal view returns (uint256){
        if (_pricing.whoCanMint == WhoCanMint.ALLOWLIST) {
            return _pricing.allowListMintLimit;
        } else if (_pricing.whoCanMint == WhoCanMint.ANYONE) {
            return _pricing.generalMintLimit;
        } else if (wallet == owner()) {
            return numberCanMint();
        }
            
        return 0;       
    }

    /**
      @param baseDirectory The base directory fo the metadata
      @dev Update the base directory
     */
    function updateBaseDir(string memory baseDirectory) external onlyOwner {
        _baseDir= baseDirectory;
    }

    /**
      @param _salePrice The amount of ETH is needed to start the sale.
      @dev This sets a simple ETH sales price
           Setting a sales price allows users to mint the drop until it sells out.
           For more granular sales, use an external sales contract.
     */
    function setSalePrice(uint256 _salePrice) external onlyOwner {
        salePrice = _salePrice;

        _pricing.whoCanMint = WhoCanMint.ANYONE;

        emit WhoCanMintChanged(_pricing.whoCanMint);
        emit PriceChanged(_salePrice);
    }

    /**
      @param _salePrice The amount of ETH is needed to start the sale.
      @dev This sets the allow list ETH sales price
           Setting a sales price allows users to mint the drop until it sells out.
           For more granular sales, use an external sales contract.
     */
    function setAllowListSalePrice(uint256 _salePrice) external onlyOwner {
        _pricing.allowListSalePrice = _salePrice;

        _pricing.whoCanMint = WhoCanMint.ALLOWLIST;

        emit WhoCanMintChanged(_pricing.whoCanMint);
        emit PriceChanged(_salePrice);
    }

     /**
      @param allowListSalePrice if sale price is 0 sale is stopped, otherwise that amount 
                       of ETH is needed to start the sale.
      @param generalSalePrice if sale price is 0 sale is stopped, otherwise that amount 
                       of ETH is needed to start the sale.                                              
      @dev This sets the members ETH sales price
           Setting a sales price allows users to mint the drop until it sells out.
           For more granular sales, use an external sales contract.
     */
    function setSalePrices(uint256 allowListSalePrice, uint256 generalSalePrice) external onlyOwner {
        _pricing.allowListSalePrice = allowListSalePrice;
        salePrice = generalSalePrice;        

        emit PriceChanged(generalSalePrice);
    }  

    /**
      @dev This withdraws ETH from the contract to the contract owner.
     */
    function withdraw() external onlyOwner {
        uint256 currentBalance = address(this).balance;
        if (currentBalance > 0) {
            if (_artistWallet != address(0x0)) {
                uint256 platformFee = (currentBalance * _pricing.splitBPS) / 10000;
                uint256 artistFee = currentBalance - platformFee;

                AddressUpgradeable.sendValue(payable(owner()), platformFee);
                AddressUpgradeable.sendValue(payable(_artistWallet), artistFee);            
            } else {
                AddressUpgradeable.sendValue(payable(owner()), currentBalance);
            } 
        }
    }

    /**
      @dev This helper function checks if the msg.sender is allowed to mint the
            given edition id.
     */
    function _isAllowedToMint() internal view returns (bool) {
        if (_pricing.whoCanMint == WhoCanMint.ANYONE) {
            return true;
        }

        if (owner() == msg.sender) {
            return true;
        }   

        if (_pricing.whoCanMint == WhoCanMint.ALLOWLIST) {
            if (_pricing.allowListMinters[msg.sender]) {
                return true;
            } 

            if (address(_pricing.lifetimePassAddress) != address(0x0)) {
                if (_pricing.lifetimePassAddress.balanceOf(msg.sender) > 0) {
                    return (true);
                }
            }

            if (address(_pricing.annualPassAddress) != address(0x0)) {
                if (_pricing.annualPassAddress.balanceOf(msg.sender) > 0) {
                    return (true);
                }
            }
        }

        return false;
    }

    /**
        Simple override for owner interface.
     */
    function owner()
        public
        view
        override(OwnableUpgradeable, IExpandedNFT)
        returns (address)
    {
        return super.owner();
    }

    /**
        return the artists wallet address
     */
    function getArtistWallet()
        public
        view
        returns (address)
    {
        return _artistWallet;
    }

     /**
        set the artists wallet address
     */
    function setArtistWallet(address wallet)
        public
        onlyOwner
    {
        _artistWallet = wallet;
    }   

    /**
      @dev Sets the types of users who is allowed to mint.
     */
    function getAllowedMinter() public view returns (WhoCanMint){
        return _pricing.whoCanMint;
    }

    /**
      @param minters WhoCanMint enum of minter types
      @dev Sets the types of users who is allowed to mint.
     */
    function setAllowedMinter(WhoCanMint minters) public onlyOwner {
        _pricing.whoCanMint = minters;
        emit WhoCanMintChanged(minters);
    }

    /**
      @param minter address to set approved minting status for
      @param allowed boolean if that address is allowed to mint
      @dev Sets the approved minting status of the given address.
           This requires that msg.sender is the owner of the given edition id.
           If the ZeroAddress (address(0x0)) is set as a minter,
             anyone will be allowed to mint.
           This setup is similar to setApprovalForAll in the ERC721 spec.
     */
    function setAllowListMinters(uint256 count, address[] calldata minter, bool[] calldata allowed) public onlyOwner {
        for (uint256 i = 0; i < count; i++) {
            if (_pricing.allowListMinters[minter[i]] != allowed[i]) {
                if (allowed[i] == true) {
                    _pricing.allowListCount++;

                    _pricing.allowList.push(minter[i]);   

                } else {
                    _pricing.allowListCount--; 

                    uint256 index = 0;
                    while (_pricing.allowList[index] != minter[i]) {
                        index++;
                    }

                    _pricing.allowList[index] = address(0);  

                }
            }

            _pricing.allowListMinters[minter[i]] = allowed[i];
        }
    }

    /**
      @param startIndex The first ID index to write the data
      @param count How many rows of data to load 
      @param _mintedMetadataUrl The URL to the metadata for this Edtion
      @dev Function to create a new drop. Can only be called by the allowed creator
           Sets the only allowed minter to the address that creates/owns the drop.
           This can be re-assigned or updated later
     */
    function updateMetadata(
        uint256 startIndex,
        uint256 count,
        string[] memory _mintedMetadataUrl
    ) public onlyOwner {
        require(startIndex > 0, "StartIndex > 0");
        require(startIndex + count <= dropSize + 1, "Data large than drop size");

        require(_mintedMetadataUrl.length == count, "Data size mismatch");

        for (uint i = 0; i < count; i++) {
            uint index =  startIndex + i;
            
            _perTokenMetadata[index].mintedMetadataUrl =_mintedMetadataUrl[i];

            emit MetadataUpdate(index);
        }
    }

    /**
      @param tokenID The index to write the data
      @param _redeemedMetadataUrl The URL to the metadata for this Edtion
      @dev Function to create a new drop. Can only be called by the allowed creator
           Sets the only allowed minter to the address that creates/owns the drop.
           This can be re-assigned or updated later
     */
    function updateRedeemedMetadata(
        uint256 tokenID,
        string memory _redeemedMetadataUrl

    ) public onlyOwner {
        require(tokenID > 0, "tokenID > 0");
        require(tokenID <= dropSize, "tokenID <= drop size");

        _perTokenMetadata[tokenID].redeemedMetadataUrl = _redeemedMetadataUrl;

        emit MetadataUpdate(tokenID);
    }

    /// Returns the number of editions allowed to mint
    function numberCanMint() public view override returns (uint256) {
        return dropSize - _claimCount;
    }

    /**
        @param tokenId Token ID to burn
        User burn function for token id 
     */
    function burn(uint256 tokenId) public {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "Not approved");
        _burn(tokenId);
    }

    function productionStart(uint256 tokenId) public onlyOwner {
        require(_exists(tokenId), "No token");        
        require((_perTokenMetadata[tokenId].state== ExpandedNFTStates.MINTED), "Wrong state");

        _perTokenMetadata[tokenId].state = ExpandedNFTStates.REDEEM_STARTED;

        emit RedeemStarted(tokenId);
    }

    function productionComplete(
        uint256 tokenId,
        string memory _redeemedMetadataUrl              
    ) public onlyOwner {
        require(_exists(tokenId), "No token");        
        require((_perTokenMetadata[tokenId].state == ExpandedNFTStates.REDEEM_STARTED), "You currently can not redeem");

        _perTokenMetadata[tokenId].redeemedMetadataUrl = _redeemedMetadataUrl;
       _perTokenMetadata[tokenId].state = ExpandedNFTStates.REDEEMED;

        emit ProductionComplete(tokenId);
        emit MetadataUpdate(tokenId);
    }

    /**
        @dev Get royalty information for token
        @param _salePrice Sale price for the token
     */
    function royaltyInfo(uint256, uint256 _salePrice)
        external
        view
        override
        returns (address receiver, uint256 royaltyAmount)
    {
        if (owner() == address(0x0)) {
            return (owner(), 0);
        }
        return (owner(), (_salePrice * _pricing.royaltyBPS) / 10_000);
    }

    /**
        @dev Get URI for given token id
        @param tokenId token id to get uri for
        @return base64-encoded json metadata object
    */
    function tokenURI(uint256 tokenId)
        public
        view
        override
        returns (string memory)
    {
        require(_exists(tokenId), "No token");

        if (_perTokenMetadata[tokenId].state == ExpandedNFTStates.REDEEMED) {
            return (_perTokenMetadata[tokenId].redeemedMetadataUrl);
        }

        bytes memory tempEmptyStringTest = bytes(_perTokenMetadata[tokenId].mintedMetadataUrl);
        if (tempEmptyStringTest.length == 0) {
            return string(abi.encodePacked(_baseDir, tokenId.toString(), ".json"));
        }

        return (_perTokenMetadata[tokenId].mintedMetadataUrl);
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721Upgradeable, IERC165Upgradeable)
        returns (bool)
    {
        return
            type(IERC2981Upgradeable).interfaceId == interfaceId ||
            ERC721Upgradeable.supportsInterface(interfaceId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

import "../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981Upgradeable is IERC165Upgradeable {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(
        uint256 tokenId,
        uint256 salePrice
    ) external view returns (address receiver, uint256 royaltyAmount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
    using AddressUpgradeable for address;
    using StringsUpgradeable for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC721_init_unchained(name_, symbol_);
    }

    function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC721Upgradeable).interfaceId ||
            interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        _requireMinted(tokenId);

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not token owner or approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
        _safeTransfer(from, to, tokenId, data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _ownerOf(tokenId) != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721Upgradeable.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721Upgradeable.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(address from, address to, uint256 tokenId) internal virtual {
        require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits an {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
     *
     * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
     * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
     * that `ownerOf(tokenId)` is `a`.
     */
    // solhint-disable-next-line func-name-mixedcase
    function __unsafe_increaseBalance(address account, uint256 amount) internal {
        _balances[account] += amount;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[44] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721ReceiverUpgradeable {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721Upgradeable.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    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");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    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");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

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

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/MathUpgradeable.sol";
import "./math/SignedMathUpgradeable.sol";

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = MathUpgradeable.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, MathUpgradeable.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library MathUpgradeable {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMathUpgradeable {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.19;

interface IExpandedNFT {
  function mintEdition(address to) external payable returns (uint256);
  function mintEditions(address[] memory to) external payable returns (uint256);
  function numberCanMint() external view returns (uint256);
  function owner() external view returns (address);
}

{
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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ExpandedNFT.WhoCanMint","name":"minters","type":"uint8"}],"name":"WhoCanMintChanged","type":"event"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"allowListed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseDir","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"canMint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dropSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllowList","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllowListCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllowListMintLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllowListPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllowedMinter","outputs":[{"internalType":"enum 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