// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

import "@openzeppelin/contracts/token/ERC721//ERC721.sol";


contract GenNFTs is ERC721 {

    uint public totalMinted;
    mapping (address => bool) public autorized;
    using Strings for uint256;
    string InitName = "GenNFTs";
    string InitSymbol = "GEN";
    uint256 specialMinted;
    uint256 founderPercentage=10;
    address royaltyReceiver;
    mapping  (uint => string) private ID2URI;
    uint[] public mintedNFTs;

    constructor() ERC721(InitName, InitSymbol) {
        autorized[msg.sender]=true;
        royaltyReceiver=msg.sender;
    }

    function autorizeAddress(address _address) public onlyAutorized{
        autorized[_address]=true;
    }

    modifier onlyAutorized(){
        require(autorized[msg.sender],"Only autorized");
        _;
    }

    function mint(address _to, string memory _specialURI, uint _NFTID) public onlyAutorized {
        totalMinted++;
        ID2URI[_NFTID]=_specialURI;
        _safeMint(_to, _NFTID);
        _ownedTokens[_to].push(_NFTID);
        mintedNFTs.push(_NFTID);
    }

    function walletOfOwner(address _owner)
        public
        view
        returns (uint256[] memory)
    {
        return _ownedTokens[_owner];
    }     


    mapping(address => uint[]) private _ownedTokens;
    function tokenURI(uint256 _tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(
        _exists(_tokenId),
        "ERC721Metadata: URI query for nonexistent token"
        );
        return ID2URI[_tokenId];
    }
    function change_tokenURI(uint256 _tokenId, string memory _newURI) public onlyAutorized{
        require(_exists(_tokenId),"ERC721Metadata: URI query for nonexistent token");
        ID2URI[_tokenId]=_newURI;
    }
    function royaltyInfo(uint256 _tokenId,uint256 _salePrice) public view returns (address receiver, uint256 royaltyAmount){
        _tokenId+0;
        return(royaltyReceiver, _salePrice*(founderPercentage)/100);
    }
    function changeRoyaltyFounderInfo(address _royaltyReceiver) public onlyAutorized{
        royaltyReceiver=_royaltyReceiver;
    }
}

//Fork de Contrato de Prueba Hashlips
//Modificado y Adaptado por Rafael SantaMaría de BitsDapps.tech para el proyecto "Astroneas"