#region LICENSE
/**********************************************************************************************
 * Copyright (C) 2019-2019 - All Rights Reserved
 * 
 * This file is part of "Discord Media Loader".
 * The official repository is hosted at https://github.com/Serraniel/Darkorbit-Helper-Program
 * 
 * "Discord Media Loader" is licensed under European Union Public Licence V. 1.2.
 * Full license is included in the project repository.
 * 
 * Users who edited VersionHelper.cs under the condition of the used license:
 * - Serraniel (https://github.com/Serraniel)
 **********************************************************************************************/
#endregion

using System;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Octokit;

namespace Discord_Media_Loader.Helper
{
    internal class VersionHelper
    {
        internal static Version CurrentVersion => Assembly.GetExecutingAssembly().GetName().Version;

        internal static Version AppVersion => AssemblyName.GetAssemblyName("Discord Media Loader.Application.dll").Version;

        internal static async Task<Version> GetReleaseVersion()
        {
            var github = new GitHubClient(new ProductHeaderValue("DiscordMedialLoader"));

            var tag =
               (await github.Repository.Release.GetAll("Serraniel", "DiscordMediaLoader")).OrderByDescending(x => x.CreatedAt).First().TagName.Replace("v", "") ?? "";

            var version = new Version(tag);
            return version;
        }

        internal static async Task<string> DownloadLatestReleaseVersion()
        {
            return await DownloadVersion(await GetReleaseVersion());
        }

        internal static async Task<string> DownloadVersion(Version version)
        {
            var github = new GitHubClient(new ProductHeaderValue("DiscordMediaLoader"));
            var releaseVersion = (from release in (await github.Repository.Release.GetAll("Serraniel", "DiscordMediaLoader")) where release.TagName == $"v{version.Major}.{version.Minor}.{version.Build}.{version.Revision}" select release).First();

            return releaseVersion.Assets.FirstOrDefault()?.BrowserDownloadUrl;
        }
    }
}