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contracts...MVR.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.15;

import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract MVR is ERC721URIStorage{

        // address of the owner
    address payable owner; 

    // pause minting
    bool public paused = false;
    
    constructor() ERC721 ("MVR Shares", "MVR"){
        owner = payable(msg.sender);
    }

    // Counters from library
    using Counters for Counters.Counter;

    // to count the number of tokens in the contract
    Counters.Counter private _tokenIds;
    Counters.Counter private _itemsSold;

    // access to tht owner
    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    struct PropertyItem{
        address owner;
    }

   mapping  ( uint => PropertyItem ) idToProperty;

    function fetchMarketItems() public view returns (PropertyItem[] memory) {
      uint itemCount = _tokenIds.current();
      uint unsoldItemCount = _tokenIds.current() - _itemsSold.current();
      uint currentIndex = 0;

      PropertyItem[] memory items = new PropertyItem[](unsoldItemCount);
      for (uint i = 0; i < itemCount; i++) {

        if (idToProperty[i + 1].owner == address(this)) {

          uint currentId = i + 1;

          PropertyItem storage currentItem = idToProperty[currentId];

          items[currentIndex] = currentItem;

          currentIndex += 1;
        }
      }

      return items;
    }


}