threads in GUI, fixed level pack, added cache clean up

GUI/MainWindow.cs

@@ -99,20 +99,30 @@ private Menu CreateContextMenu(Mod mod)
         contextmenu.ShowAll();
         return contextmenu;
     }
+    private void ApplyModsThread()
+    {
+        Sensitive = false;
+        ModDB.Apply();
+        Sensitive = true;
+        //this.ShowMessageBox("Enabled mods have been applied, you can now start the game with mods!");
+    }
     public void ApplyMods()
     {
         if(ModDB.EnabledMods.Count == 0) return;
+        Thread thread = new(ApplyModsThread);
+        thread.Start();
+    }
+    private void RevertThread()
+    {
         Sensitive = false;
-        Utils.JoinThread(ModDB.Apply);
-        this.ShowMessageBox("Enabled mods have been applied, you can now start the game with mods!");
+        BackupManager.Revert();
         Sensitive = true;
+        //this.ShowMessageBox("Reverted all the game files back to their orignal!");
     }
     public void Revert()
     {
-        Sensitive = false;
-        Utils.JoinThread(BackupManager.Revert);
-        this.ShowMessageBox("Reverted all the game files back to their orignal!");
-        Sensitive = true;
+        Thread thread = new(RevertThread);
+        thread.Start();
     }
     public void Launch()
     {

VelvetBeautifier/Levels/Manager.cs

@@ -47,15 +47,16 @@ public static void Apply(Game game)
             pack.Add(modpack);
         }
         pack.Save(tempLevels);
-        Velvet.Info($"applying levels modifications with {pack.Levels.Count} levels and {pack.Worlds.Entries.Count} to {FILENAME}");
+        Velvet.Info($"applying levels modifications with {pack.Levels.Count} levels and {pack.Worlds.Entries.Count} entries to {FILENAME}");
         string gfs = GetFilePath(game);
         RevergePackage levels = RevergePackage.Open(gfs);
-        levels.Merge(RevergePackage.Create(tempLevels));
+        RevergePackage newLevels = RevergePackage.Create(temp);
+        RevergePackage modded = RevergePackage.Merge(levels.Header,levels,newLevels);
         if(File.Exists(gfs))
             File.Delete(gfs);
         using Writer writer = new(gfs);
-        writer.Write(levels);
+        writer.Write(modded);
         if(Directory.Exists(temp))
-            Directory.Delete(temp);
+            Directory.Delete(temp,true);
     }
 }

VelvetBeautifier/ModLoaderTool.cs

@@ -18,6 +18,8 @@ private static bool SetupRequired()
     }
     public static void Init()
     {
+        // clear cache on startup
+        FileSystem.ClearTempFolders();
         // create main directory for storing things
         Directory.CreateDirectory(Velvet.AppDataFolder);
         Migrate();

VelvetBeautifier/Utilities/FileSystem.cs

@@ -6,6 +6,7 @@ namespace ThemModdingHerds.VelvetBeautifier.Utilities;
 /// </summary>
 public static class FileSystem
 {
+    public const string TEMP_PREFIX = $"{Velvet.ALTNAME}-";
     /// <summary>
     /// Safe method of getting all the files in <c>folder</c>
     /// </summary>
@@ -63,7 +64,7 @@ public static string CreateTempFile()
     /// Create a empty folder in the temporal folder of the Operating System
     /// </summary>
     /// <returns>A valid folderpath in the temporal folder</returns>
-    public static string CreateTempFolder() => Directory.CreateTempSubdirectory($"{Velvet.ALTNAME}-").FullName; // very easy as you can see
+    public static string CreateTempFolder() => Directory.CreateTempSubdirectory(TEMP_PREFIX).FullName; // very easy as you can see
     /// <summary>
     /// Remove invalid characters from <c>path</c>
     /// </summary>
@@ -91,4 +92,14 @@ public static bool OpenFolder(string folderpath)
             Verb = "open"
         }) != null;
     }
+    /// <summary>
+    /// Clears all the temporal folders created
+    /// </summary>
+    public static void ClearTempFolders()
+    {
+        string tempFolder = Path.GetTempPath();
+        string[] folders = Directory.GetDirectories(tempFolder,$"{TEMP_PREFIX}*");
+        foreach(string folder in folders)
+            Directory.Delete(folder,true);
+    }
 }