using System;

using System.Collections.Generic;

using System.IO;

using System.Net;

using System.Text.Json;

using RestSharp;

using Microsoft.Maui.Networking;

​

public class FirmwareRelease

{

    public string Version { get; set; }

    public string Release_Date { get; set; }

    public string Url { get; set; }

​

    // Override the ToString method to provide a formatted string representation of the object

    public override string ToString()

    {

        return $"Version: {Version}, Release Date (UTC): {Release_Date:yyyy-MM-ddTHH:mm:ssZ}, URL: {Url}";

    }   

}

​

class Program

{

    static void Main(string[] args)

    {

        string url = "http://dayton-pub.s3-website.us-east-2.amazonaws.com/dx3files/index.json"; // Replace with your file URL or HTTP URL

​

        string jsonString = RetrieveJsonFile(url);

        Console.WriteLine(jsonString);

        if (!string.IsNullOrEmpty(jsonString))

        {

                    // Configure JsonSerializerOptions to be case-insensitive

        var options = new JsonSerializerOptions

        {

            PropertyNameCaseInsensitive = true

        };

            var firmwareReleases = JsonSerializer.Deserialize<List<FirmwareRelease>>(jsonString, options);

            foreach (var release in firmwareReleases)

            {

                Console.WriteLine($"Version: {release.Version}");

                Console.WriteLine($"Release Date (UTC): {release.Release_Date}");

                Console.WriteLine($"URL: {release.Url}");

                Console.WriteLine();

            }

        }

    }

​

    static string RetrieveJsonFile(string url)

    {

        if (url.StartsWith("file:", StringComparison.OrdinalIgnoreCase))

        {

            return RetrieveLocalFile(url);

        }

        else if (url.StartsWith("http:", StringComparison.OrdinalIgnoreCase) || url.StartsWith("https:", StringComparison.OrdinalIgnoreCase))

        {

            return RetrieveHttpFile(url);

        }

        else

        {

            throw new ArgumentException("Unsupported URL scheme. Only file, http, and https are supported.");

        }

    }

​

    static string RetrieveLocalFile(string fileUrl)

    {

        string filePath = new Uri(fileUrl).LocalPath;

        if (File.Exists(filePath))

        {

            return File.ReadAllText(filePath);

        }

        else

        {

            throw new FileNotFoundException("The file could not be found.", filePath);

        }

    }

​

    static string RetrieveHttpFile(string httpUrl)

    {

//        if (!IsInternetAvailable())

//        {

//            throw new WebException("No internet connection available.");

//        }

​

        var client = new RestClient(httpUrl);

        var request = new RestRequest("", Method.Get);

​

        RestResponse response = client.Execute(request);

        if (response.StatusCode == HttpStatusCode.OK)

        {

            return response.Content;

        }

        else

        {

            throw new WebException($"Failed to retrieve the file from {httpUrl}. Status Code: {response.StatusCode}");

        }

    }

​

    static bool IsInternetAvailable()

    {

        // Using MAUI's Connectivity class to check the internet connection

        var current = Connectivity.Current;

        return current.NetworkAccess == NetworkAccess.Internet;

    }

}