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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/interfaces/IERC2981.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract MAGNETNFT is ERC721, ERC721URIStorage, ERC721Burnable, Ownable, IERC2981 {
    using Counters for Counters.Counter;

    Counters.Counter private _tokenIdCounter;

    constructor() ERC721("MAGNETNFT", "MNFT") {}

    function safeMint(address to, string memory uri, uint256 royaltyPercent) public onlyOwner {
        uint256 tokenId = _tokenIdCounter.current();
        _safeMint(to, tokenId);
        _setTokenURI(tokenId, uri);
        _setRoyalty(newTokenId, royaltyPercentage);

    //supporting IERC2981 interface 

    function supportsInterface(bytes4 interfaceId) public view override(IERC2981) returns (bool) {
    return super.supportsInterface(interfaceId);

    // The following functions are overrides required by Solidity.

    function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage) {

    //onlyOwner callable self destruction function impl

    function selfDestroy() public onlyOwner {

    function tokenURI(uint256 tokenId) public view override(ERC721, ERC721URIStorage) returns (string memory)
        return super.tokenURI(tokenId);

    function royaltyInfo(uint256 tokenId, uint256 value) public view returns (address receiver, uint256 royaltyAmount) {
        // Get the creator of the token
        address creator = ownerOf(tokenId);

        // Calculate the royalty amount as 10% of the value
           uint256 _royaltyAmount = value / 10; 

        return (creator, _royaltyAmount);

    function royaltyFeeUpdate (uint256 tokenId, uint256 value, uint256 rate) public view returns ( uint256 royaltyAmount)

        require(_msgSender() == ownerOf(_tokenId), "Only the owner can update royalty fee");

        // Get the creator of the token
        address creator = ownerOf(tokenId);
        uint256 _royaltyAmount = value / rate;

        return (creator, _royaltyAmount);