using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Reflection;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;
using System.Windows.Threading;
using TeamsNetphoneLink.WPF;

namespace TeamsNetphoneLink
{
    public class UpdateCheck
    {
        public static bool UpdateAvailable;

        public static async Task<string> GetLatestReleaseTagAsync()
        {
            using (var client = new HttpClient())
            {
                var url = "https://git.jan.sx/api/v1/repos/krjan02/TeamsNetphoneLink/releases/latest";

                try
                {
                    var response = await client.GetStringAsync(url);

                    var json = JsonDocument.Parse(response);

                    if (json.RootElement.TryGetProperty("tag_name", out var tagName))
                    {
                        return tagName.GetString();
                    }
                    else
                    {
                        ExceptionWindowHelper.Show("UpdateCheck", MethodBase.GetCurrentMethod().Name, "Update Check nicht erfolgreich", "tag_name is not existing");
                        return "";
                    }
                }
                catch (Exception ex)
                {
                    ExceptionWindowHelper.Show("UpdateCheck", MethodBase.GetCurrentMethod().Name, "Update Check nicht erfolgreich", ex.Message, ex.StackTrace);
                    return "";
                }
            }
        }

        public static bool IsVersionLower(string currentVersion, string releaseVersion)
        {
            if(releaseVersion.Length == 0) { return false; }

            Version current = Version.Parse(currentVersion);
            Version release = Version.Parse(releaseVersion);

            return current.CompareTo(release) < 0;
        }

        public static string GetCurrentVersion()
        {
            var assembly = Assembly.GetEntryAssembly();
            var versionAttribute = assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>();
            var productVersion = versionAttribute?.InformationalVersion;

            return productVersion.Split("+").FirstOrDefault(); ;
        }

        public static void UpgradeSettingsIfRequired()
        {
            var version = GetCurrentVersion();
            if (Settings.Default.CurrentVersion != version)
            {
                Settings.Default.Upgrade();
                Settings.Default.CurrentVersion = version;
                Settings.Default.Save();
            }
        }
    }
}