Added playlist view.

Harmonia.WinUI/ViewModels/PlaylistViewModel.cs

@@ -20,6 +20,8 @@ using System.Threading.Tasks;
 using System.Timers;
 using System.Windows.Input;
 using Windows.ApplicationModel.DataTransfer;
+using Windows.System;
+using DispatcherQueue = Microsoft.UI.Dispatching.DispatcherQueue;
 using Timer = System.Timers.Timer;
 
 namespace Harmonia.WinUI.ViewModels;
@@ -31,6 +33,7 @@ public partial class PlaylistViewModel : ViewModelBase
     private readonly IAudioFileScanner _audioFileScanner;
     private readonly IAudioEngine _audioEngine;
     private readonly IStorageProvider _storageProvider;
+    private readonly DispatcherQueue _dispatcherQueue;
 
     private Timer? _filterTimer;
 
@@ -121,7 +124,8 @@ public partial class PlaylistViewModel : ViewModelBase
         IAudioBitmapImageCache audioBitmapImageCache,
         IAudioFileScanner audioFileScanner,
         IAudioEngine audioEngine,
-        IStorageProvider storageProvider)
+        IStorageProvider storageProvider,
+        IPlaylistRepository playlistRepository)
     {
         _audioPlayer = audioPlayer;
         _audioPlayer.PlaylistChanged += OnPlaylistChanged;
@@ -131,6 +135,23 @@ public partial class PlaylistViewModel : ViewModelBase
         _audioFileScanner = audioFileScanner;
         _audioEngine = audioEngine;
         _storageProvider = storageProvider;
+        _dispatcherQueue = DispatcherQueue.GetForCurrentThread();
+
+        // Testing
+        Task.Run(() => PlayDemoSong(playlistRepository));
+    }
+
+    private async Task PlayDemoSong(IPlaylistRepository playlistRepository)
+    {
+        if (playlistRepository.Get().Count == 0)
+        {
+            playlistRepository.AddPlaylist();
+        }
+
+        Playlist playlist = playlistRepository.Get().First();
+
+        if (playlist.Songs.Count > 0)
+            await _audioPlayer.LoadAsync(playlist.Songs[0], PlaybackMode.LoadOnly);
     }
 
     private void OnPlaylistChanged(object? sender, EventArgs e)
@@ -161,10 +182,10 @@ public partial class PlaylistViewModel : ViewModelBase
         switch (e.Action)
         {
             case PlaylistUpdateAction.Add:
-                DispatcherQueue.GetForCurrentThread().TryEnqueue(() => AddSongs(e.Songs, e.Index));
+                _dispatcherQueue.TryEnqueue(() => AddSongs(e.Songs, e.Index));
                 break;
             case PlaylistUpdateAction.Remove:
-                DispatcherQueue.GetForCurrentThread().TryEnqueue(() => RemoveSongsFromCollection(e.Songs));
+                _dispatcherQueue.TryEnqueue(() => RemoveSongsFromCollection(e.Songs));
                 break;
         }
     }
@@ -232,7 +253,7 @@ public partial class PlaylistViewModel : ViewModelBase
         _filterTimer.Dispose();
         _filterTimer = null;
 
-        DispatcherQueue.GetForCurrentThread().TryEnqueue(UpdateFilteredSongs);
+        _dispatcherQueue.TryEnqueue(UpdateFilteredSongs);
     }
 
     private void UpdateFilteredSongs()
@@ -304,10 +325,12 @@ public partial class PlaylistViewModel : ViewModelBase
 
     private FilePickerFileType GetAudioFileTypes()
     {
+        string[] patterns = _audioEngine.SupportedFormats.Select(format => format.Replace("*", "")).ToArray();
+
         return new()
         {
             Name = "Audio Files",
-            Patterns = [.. _audioEngine.SupportedFormats]
+            Patterns = patterns
         };
     }
 
@@ -316,7 +339,7 @@ public partial class PlaylistViewModel : ViewModelBase
         if (Playlist == null)
             return;
 
-       string path = await _storageProvider.GetPathAsync();
+       string? path = await _storageProvider.GetPathAsync();
 
         if (string.IsNullOrWhiteSpace(path))
             return;