Implement pulling from Github, and selecting latest version

Wabbajack.Launcher/MainWindowVM.cs

@@ -7,6 +7,7 @@ using System.Linq;
 using System.Net;
 using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
+using Newtonsoft.Json;
 using Wabbajack.Launcher.Annotations;
 
 namespace Wabbajack.Launcher
@@ -14,6 +15,9 @@ namespace Wabbajack.Launcher
     public class MainWindowVM : INotifyPropertyChanged
     {
         public event PropertyChangedEventHandler PropertyChanged;
+        private WebClient _client = new WebClient();
+        public Uri GITHUB_REPO = new Uri("https://api.github.com/repos/wabbajack-tools/temp-releases/releases");
+
 
         [NotifyPropertyChangedInvocator]
         protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
@@ -22,7 +26,7 @@ namespace Wabbajack.Launcher
         }
 
         private string _status = "Checking for Updates";
-        private string _version;
+        private Release _version;
 
         public string Status
         {
@@ -44,16 +48,42 @@ namespace Wabbajack.Launcher
 
         private async Task CheckForUpdates()
         {
-            _version = "0.9.17.0";
+            _client.Headers.Add ("user-agent", "Wabbajack Launcher");
+            Status = "Selecting Release";
 
-            var base_folder = Path.Combine(Directory.GetCurrentDirectory());
+            try
+            {
+                var releases = await GetReleases();
+                _version = releases.OrderByDescending(r =>
+                {
+                    if (Version.TryParse(r.Tag, out var v))
+                        return v;
+                    return new Version(0, 0, 0, 0);
+                }).FirstOrDefault();
+            }
+            catch (Exception)
+            {
+                FinishAndExit();
+            }
             
-            if (File.Exists(Path.Combine(base_folder, _version, "Wabbajack.exe")))
+            if (_version == null)
+                FinishAndExit();
+
+            Status = "Looking for Updates";
+            
+            var base_folder = Path.Combine(Directory.GetCurrentDirectory(), _version.Tag);
+            
+            if (File.Exists(Path.Combine(base_folder, "Wabbajack.exe")))
+                FinishAndExit();
+
+            var asset = _version.Assets.FirstOrDefault(a => a.Name == _version.Tag + ".zip");
+            if (asset == null)
                 FinishAndExit();
 
             var wc = new WebClient();
             wc.DownloadProgressChanged += UpdateProgress;
-            var data = await wc.DownloadDataTaskAsync(new Uri("https://build.wabbajack.org/0.9.17.0.zip"));
+            Status = $"Downloading {_version.Tag} ...";
+            var data = await wc.DownloadDataTaskAsync(asset.BrowserDownloadUrl);
             
             using (var zip = new ZipArchive(new MemoryStream(data), ZipArchiveMode.Read))
             {
@@ -77,11 +107,14 @@ namespace Wabbajack.Launcher
         private void FinishAndExit()
         {
             Status = "Launching...";
-            var wj_folder = Path.Combine(Directory.GetCurrentDirectory(), _version);
+            var wjFolder = Directory.EnumerateDirectories(Directory.GetCurrentDirectory())
+                .OrderByDescending(v =>
+                    Version.TryParse(Path.GetFileName(v), out var ver) ? ver : new Version(0, 0, 0, 0))
+                .FirstOrDefault();
             var info = new ProcessStartInfo
             {
-                FileName = Path.Combine(wj_folder, "Wabbajack.exe"), 
-                WorkingDirectory = wj_folder,
+                FileName = Path.Combine(wjFolder, "Wabbajack.exe"), 
+                WorkingDirectory = wjFolder,
             };
             Process.Start(info);
             Environment.Exit(0);
@@ -89,7 +122,34 @@ namespace Wabbajack.Launcher
 
         private void UpdateProgress(object sender, DownloadProgressChangedEventArgs e)
         {
-            Status = $"Downloading ({e.ProgressPercentage}%)...";
+            Status = $"Downloading {_version.Tag} ({e.ProgressPercentage}%)...";
+        }
+
+        private async Task<Release[]> GetReleases()
+        {
+            Status = "Checking GitHub Repository";
+            var data = await _client.DownloadStringTaskAsync(GITHUB_REPO);
+            Status = "Parsing Response";
+            return JsonConvert.DeserializeObject<Release[]>(data);
+        }
+
+
+        class Release
+        {
+            [JsonProperty("tag_name")]
+            public string Tag { get; set; }
+            
+            [JsonProperty("assets")]
+            public Asset[] Assets { get; set; }
+        }
+
+        class Asset
+        {
+            [JsonProperty("browser_download_url")]
+            public Uri BrowserDownloadUrl { get; set; }
+            
+            [JsonProperty("name")]
+            public string Name { get; set; }
         }
     }
 }

Wabbajack.Launcher/Wabbajack.Launcher.csproj

@@ -4,9 +4,11 @@
         <OutputType>WinExe</OutputType>
         <TargetFramework>netcoreapp3.1</TargetFramework>
         <UseWPF>true</UseWPF>
-        <PublishTrimmed>true</PublishTrimmed>
+
         <PublishSingleFile>true</PublishSingleFile>
         <RuntimeIdentifier>win-x64</RuntimeIdentifier>
+        <AssemblyName>Wabbajack</AssemblyName>
+        <RootNamespace>Wabbajack</RootNamespace>
     </PropertyGroup>
 
     <PropertyGroup>