// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts@4.4.0/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts@4.4.0/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts@4.4.0/access/Ownable.sol";
// ___________    .__                   __            ____  __.            
// \__    ___/___ |  |   ____   _______/  |_  ____   |    |/ _|____ ___.__.
//   |    |_/ __ \|  | _/ __ \ /  ___/\   __\/  _ \  |      <_/ __ <   |  |
//   |    |\  ___/|  |_\  ___/ \___ \  |  | (  <_> ) |    |  \  ___/\___  |
//   |____| \___  >____/\___  >____  > |__|  \____/  |____|__ \___  > ____|
//              \/          \/     \/                        \/   \/\/     

contract TelestoKey is ERC721, ERC721Enumerable, Ownable {

    string private _metadataDataURI="ipfs://QmYVoNsLLGFkzKMY1P9avv2o7wUVkSNUiXX9ArUYnE1Pw4/";
    uint256 private _totalSupply = 3;
    constructor() ERC721("TelestoKey", "TELOKEY") {}


  function uri(uint256 tokenId)
        public
        view
        virtual        
        returns (string memory)
    {
        return
            string(
                abi.encodePacked(_baseURI(), Strings.toString(tokenId),".json")
            );
    }
    
  function tokenURI (uint256 tokenId)
        public
        override
        view
        virtual        
        returns (string memory)
    {
        return
            string(
                abi.encodePacked(_baseURI(), Strings.toString(tokenId),".json")
            );
    }

    function _baseURI() internal view override returns (string memory) {
        return _metadataDataURI;
    }
    function updateBaseURI(string memory URI) public onlyOwner {
        _metadataDataURI=URI;
    }
    function updateSupply(uint256 SUPPLY) public onlyOwner {
        _totalSupply=SUPPLY;
    }
    function decimals() pure public returns(uint8){
        return 1;
    }

    function safeMint(address to,uint256 tokenId) public onlyOwner {
        _safeMint(to,tokenId);
    }

    // The following functions are overrides required by Solidity.

    function _beforeTokenTransfer(address from, address to, uint256 tokenId)
        internal
        override(ERC721, ERC721Enumerable)
    {
        super._beforeTokenTransfer(from, to, tokenId);
    }
    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, ERC721Enumerable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
}