Add jellyfin source

Bot/Handler/MusicPlayer/PlayCommand/PlayHandler.cs

@@ -6,6 +6,7 @@ using Lavalink4NET;
 using Lavalink4NET.Events.Players;
 using Lavalink4NET.Integrations.SponsorBlock;
 using Lavalink4NET.Integrations.SponsorBlock.Extensions;
+using Lavalink4NET.Jellyfin;
 using Lavalink4NET.Players.Queued;
 using Lavalink4NET.Rest.Entities.Tracks;
 using Lavalink4NET.Tracks;
@@ -19,8 +20,7 @@ public class PlayHandler : IRequestHandler<PlayCommand>
     private readonly MusicEmbed _musicEmbed;
     private readonly DiscordSocketClient _client;
     private readonly IAudioService _audioService;
-    private SocketSlashCommand _context;
+    private SocketSlashCommand _context = default!; // ensure initialized before use
-    private const int MaxTrackDuration = 30;
     private LavalinkTrack? _previousTrack;
     private static readonly HashSet<ulong> SubscribedGuilds = new();
     
@@ -34,15 +34,16 @@ public class PlayHandler : IRequestHandler<PlayCommand>
         _audioService = audioService;
     }
     
-    private async Task OnTrackEnded(object sender, TrackEndedEventArgs eventargs)
+    private Task OnTrackEnded(object sender, TrackEndedEventArgs eventargs)
     {
         // Reset the previous track when the track ends.
         _previousTrack = null;
+        return Task.CompletedTask;
     }
     
     private async Task OnTrackStarted(object sender, TrackStartedEventArgs eventargs)
     {
-        var player = sender as QueuedLavalinkPlayer;
+        var player = eventargs.Player as QueuedLavalinkPlayer;
 
         if (player?.CurrentTrack is null)
         {
@@ -60,22 +61,16 @@ public class PlayHandler : IRequestHandler<PlayCommand>
 
         // Track has changed, update the previous track and send the embed
         _previousTrack = currentTrack;
+        if (_context != null)
+        {
             await _musicEmbed.NowPlayingEmbed(currentTrack, _context, _client);
         }
+    }
     
-    public Task Handle(PlayCommand command, CancellationToken cancellationToken)
+    public async Task Handle(PlayCommand command, CancellationToken cancellationToken)
-    {
-        new Thread(PlayMusic).Start();
-        return Task.CompletedTask;
-
-        async void PlayMusic()
     {
         try
         {
-                RegisterTrackStartedEventListerner(command);
-                
-                await _audioService.StartAsync(cancellationToken);
-                
             var context = command.Message;
             _context = context;
 
@@ -93,6 +88,10 @@ public class PlayHandler : IRequestHandler<PlayCommand>
                 return;
             }
 
+            RegisterTrackStartedEventListerner(command);
+
+            await _audioService.StartAsync(cancellationToken);
+
             await context.SendMessageAsync("📻 Searching...", _client);
 
             var player = await _audioService.GetPlayerAsync(_client, context, connectToVoiceChannel: true);
@@ -103,12 +102,17 @@ public class PlayHandler : IRequestHandler<PlayCommand>
             await ApplyFilters(cancellationToken, player);
             await ConfigureSponsorBlock(cancellationToken, player);
 
+            // Parse the query to extract search mode and clean query
+            // Supports prefixes like jfsearch:, ytsearch:, scsearch:, etc.
+            // Default: Jellyfin (jfsearch:) when no prefix is specified
+            var (searchMode, queryToSearch) = SearchQueryParser.Parse(searchQuery, JellyfinSearchMode.Jellyfin);
+
             var trackLoadOptions = new TrackLoadOptions
             {
-                    SearchMode = TrackSearchMode.YouTubeMusic, 
+                SearchMode = searchMode,
             };
 
-                var trackCollection = await _audioService.Tracks.LoadTracksAsync(searchQuery, trackLoadOptions, cancellationToken: cancellationToken);
+            var trackCollection = await _audioService.Tracks.LoadTracksAsync(queryToSearch, trackLoadOptions, cancellationToken: cancellationToken);
 
             // Check if the result is a playlist or just a single track from the search result
             if (trackCollection.IsPlaylist)
@@ -122,7 +126,7 @@ public class PlayHandler : IRequestHandler<PlayCommand>
                     if (trackCollection.Track != null)
                     {
                         await player.PlayAsync(trackCollection.Track, cancellationToken: cancellationToken).ConfigureAwait(false);
-                            await _musicEmbed.NowPlayingEmbed(trackCollection.Track, _context, _client);
+                        // rely on TrackStarted event to send Now Playing
                     }
                     else
                     {
@@ -150,7 +154,7 @@ public class PlayHandler : IRequestHandler<PlayCommand>
                 if (track != null)
                 {
                     await player.PlayAsync(track, cancellationToken: cancellationToken).ConfigureAwait(false);
-                        await _musicEmbed.NowPlayingEmbed(track, _context, _client);
+                    // rely on TrackStarted event to send Now Playing
                 }
                 else
                 {
@@ -163,16 +167,26 @@ public class PlayHandler : IRequestHandler<PlayCommand>
             throw new Exception("Error occured in the Play handler!", error);
         }
     }
-    }
 
     private void RegisterTrackStartedEventListerner(PlayCommand command)
     {
-        if (SubscribedGuilds.Contains((ulong)command.Message.GuildId!)) 
+        var guildId = command.Message.GuildId;
+        if (!guildId.HasValue)
+        {
+            // Ignore registration for DMs or contexts without a guild.
+            return;
+        }
+
+        var gid = guildId.Value;
+        if (SubscribedGuilds.Contains(gid))
             return;
 
+        // Ensure we don't accidentally double-subscribe.
+        _audioService.TrackStarted -= OnTrackStarted;
+        _audioService.TrackEnded -= OnTrackEnded;
         _audioService.TrackStarted += OnTrackStarted;
         _audioService.TrackEnded += OnTrackEnded;
-        SubscribedGuilds.Add((ulong)command.Message.GuildId!);
+        SubscribedGuilds.Add(gid);
     }
 
     private static async Task ApplyFilters(CancellationToken cancellationToken, QueuedLavalinkPlayer player)

Bot/Lunaris2.csproj

@@ -21,6 +21,7 @@
     <PackageReference Include="Lavalink4NET.Discord.NET" Version="4.0.25" />
     <PackageReference Include="Lavalink4NET.Integrations.Lavasrc" Version="4.0.25" />
     <PackageReference Include="Lavalink4NET.Integrations.SponsorBlock" Version="4.0.25" />
+    <PackageReference Include="Lavalink4NET.Jellyfin" Version="1.0.0" />
     <PackageReference Include="MediatR" Version="12.4.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.2" />

Bot/Service/VoiceChannelMonitorService.cs

@@ -6,11 +6,14 @@ namespace Lunaris2.Service
     public class VoiceChannelMonitorService
     {
         private readonly DiscordSocketClient _client;
-        private readonly Dictionary<ulong, Timer> _timers = new();
+        // Track a cancellation source per voice channel when the bot is alone
+        private readonly Dictionary<ulong, CancellationTokenSource> _leaveCtsByChannel = new();
 
         public VoiceChannelMonitorService(DiscordSocketClient client)
         {
             _client = client;
+            // Subscribe to voice state updates to react immediately
+            _client.UserVoiceStateUpdated += OnUserVoiceStateUpdated;
         }
 
         public void StartMonitoring()
@@ -20,7 +23,7 @@ namespace Lunaris2.Service
                 while (true)
                 {
                     await CheckVoiceChannels();
-                    await Task.Delay(TimeSpan.FromMinutes(1)); // Monitor every minute
+                    await Task.Delay(TimeSpan.FromMinutes(1)); // Status refresh every minute
                 }
             });
         }
@@ -28,7 +31,7 @@ namespace Lunaris2.Service
         private async Task CheckVoiceChannels()
         {
             SetStatus();
-            await LeaveOnAlone();
+            await EnsureCurrentAloneStatesScheduled();
         }
         
         private void SetStatus()
@@ -49,48 +52,137 @@ namespace Lunaris2.Service
                 _client.SetGameAsync($" in {channels} servers", type: ActivityType.Playing);
         }
 
-        private async Task LeaveOnAlone()
+        // Monitor existing alone states during the periodic check to ensure timers exist
+        private async Task EnsureCurrentAloneStatesScheduled()
         {
             foreach (var guild in _client.Guilds)
             {
-                // Find voice channels where only the bot is left
+                foreach (var voiceChannel in guild.VoiceChannels)
-                var voiceChannel = guild.VoiceChannels.FirstOrDefault(vc => 
+                {
-                    vc.ConnectedUsers.Count == 1 && 
+                    var botInChannel = voiceChannel.ConnectedUsers.Any(u => u.Id == _client.CurrentUser.Id);
-                    vc.Users.Any(u => u.Id == _client.CurrentUser.Id));
+                    var userCount = voiceChannel.ConnectedUsers.Count;
 
-                if (voiceChannel != null)
+                    if (botInChannel && userCount == 1)
                     {
-                    // If timer not set for this channel, start one
+                        // Schedule leave if not already scheduled
-                    if (!_timers.ContainsKey(voiceChannel.Id))
+                        if (!_leaveCtsByChannel.ContainsKey(voiceChannel.Id))
                         {
-                        Console.WriteLine($"Bot is alone in channel {voiceChannel.Name}, starting timer...");
+                            ScheduleLeave(voiceChannel);
-                        _timers[voiceChannel.Id] = new Timer(async _ => await LeaveChannel(voiceChannel), null, 
-                            TimeSpan.FromMinutes(3), Timeout.InfiniteTimeSpan);  // Set delay before leaving
                         }
                     }
                     else
                     {
-                    // Clean up timer if channel is no longer active
+                        // Cancel if a schedule exists but the bot is not alone anymore
-                    var timersToDispose = _timers.Where(t => guild.VoiceChannels.All(vc => vc.Id != t.Key)).ToList();
+                        if (_leaveCtsByChannel.TryGetValue(voiceChannel.Id, out var cts))
-                    foreach (var timer in timersToDispose)
                         {
-                        await timer.Value.DisposeAsync();
+                            cts.Cancel();
-                        _timers.Remove(timer.Key);
+                            _leaveCtsByChannel.Remove(voiceChannel.Id);
-                        Console.WriteLine($"Disposed timer for inactive voice channel ID: {timer.Key}");
                         }
                     }
                 }
             }
 
-        private async Task LeaveChannel(SocketVoiceChannel voiceChannel)
+            await Task.CompletedTask;
+        }
+
+        private Task OnUserVoiceStateUpdated(SocketUser user, SocketVoiceState before, SocketVoiceState after)
         {
-            if (voiceChannel.ConnectedUsers.Count == 1 && voiceChannel.Users.Any(u => u.Id == _client.CurrentUser.Id))
+            // React only when events relate to the guild(s) and voice channels where the bot might be
+            var botId = _client.CurrentUser.Id;
+
+            // Determine affected channels
+            var beforeChannelId = before.VoiceChannel?.Id;
+            var afterChannelId = after.VoiceChannel?.Id;
+
+            // If the bot itself moved, we should cancel any old schedule and possibly set a new one
+            if (user.Id == botId)
+            {
+                if (beforeChannelId.HasValue && _leaveCtsByChannel.TryGetValue(beforeChannelId.Value, out var oldCts))
+                {
+                    oldCts.Cancel();
+                    _leaveCtsByChannel.Remove(beforeChannelId.Value);
+                }
+
+                if (afterChannelId.HasValue)
+                {
+                    var channel = after.VoiceChannel!;
+                    var isAlone = channel.ConnectedUsers.Count == 1 && channel.ConnectedUsers.Any(u => u.Id == botId);
+                    if (isAlone && !_leaveCtsByChannel.ContainsKey(channel.Id))
+                    {
+                        ScheduleLeave(channel);
+                    }
+                }
+
+                return Task.CompletedTask;
+            }
+
+            // For other users, if they join the bot's channel, cancel the leave; if they leave and bot becomes alone, schedule leave
+            if (afterChannelId.HasValue)
+            {
+                var channel = after.VoiceChannel!;
+                var botInChannel = channel.ConnectedUsers.Any(u => u.Id == botId);
+                var userCount = channel.ConnectedUsers.Count;
+
+                if (botInChannel && userCount > 1)
+                {
+                    // Cancel any pending leave
+                    if (_leaveCtsByChannel.TryGetValue(channel.Id, out var cts))
+                    {
+                        cts.Cancel();
+                        _leaveCtsByChannel.Remove(channel.Id);
+                    }
+                }
+            }
+
+            if (beforeChannelId.HasValue)
+            {
+                var channel = before.VoiceChannel!; // user left this channel
+                var botInChannel = channel.ConnectedUsers.Any(u => u.Id == botId);
+                var userCount = channel.ConnectedUsers.Count;
+
+                if (botInChannel && userCount == 1)
+                {
+                    // Bot became alone, schedule leave
+                    if (!_leaveCtsByChannel.ContainsKey(channel.Id))
+                    {
+                        ScheduleLeave(channel);
+                    }
+                }
+            }
+
+            return Task.CompletedTask;
+        }
+
+        private void ScheduleLeave(SocketVoiceChannel voiceChannel)
+        {
+            var cts = new CancellationTokenSource();
+            _leaveCtsByChannel[voiceChannel.Id] = cts;
+
+            _ = Task.Run(async () =>
+            {
+                try
+                {
+                    await Task.Delay(TimeSpan.FromMinutes(3), cts.Token);
+
+                    // After delay, verify still alone
+                    var botId = _client.CurrentUser.Id;
+                    var isStillAlone = voiceChannel.ConnectedUsers.Count == 1 && voiceChannel.ConnectedUsers.Any(u => u.Id == botId);
+                    if (isStillAlone)
                     {
                         Console.WriteLine($"Leaving channel {voiceChannel.Name} due to inactivity...");
                         await voiceChannel.DisconnectAsync();
-                await _timers[voiceChannel.Id].DisposeAsync();
-                _timers.Remove(voiceChannel.Id);  // Clean up after leaving
                     }
                 }
+                catch (OperationCanceledException)
+                {
+                    // Cancelled because someone joined or bot moved
+                }
+                finally
+                {
+                    _leaveCtsByChannel.Remove(voiceChannel.Id);
+                    cts.Dispose();
+                }
+            });
+        }
     }
 }

README.md

@@ -4,14 +4,14 @@
 
 Lunaris2 is a Discord bot designed to play music in your server's voice channels. It's built using C# and the Discord.Net library, and it uses the LavaLink music client for audio streaming.
 
-## Features
+## 🎮Features
 
 - Play music from YouTube directly in your Discord server.
-- Skip tracks, pause, and resume playback.
+- Skip tracks, pause, resume playback and more music related commands.
 - Queue system to line up your favorite tracks.
 - Local LLM (AI chatbot) that answers on @mentions in Discord chat. See more about it below.
 
-## Setup
+## 🤖 Setup
 
 1. Clone the repo.
 2. Extract.
@@ -29,7 +29,8 @@ The LLM is run using Ollama see more about Ollama [here](https://ollama.com/). R
 
 ## PM2 Setup
 - Install PM2 and configure it following their setup guide
-#### Lavalink
+  
+#### 🐦‍🔥 Lavalink
 * Download Lavalink 4.X.X (.jar)
 * Install Java 17
 
@@ -48,6 +49,11 @@ Register the Lunaris bot with PM2:
 - `/play <song>`: Plays the specified song in the voice channel you're currently in.
 - `/skip`: Skips the currently playing song.
 
+## Technical Documentations
+- [Application Layout](https://github.com/Myxelium/Lunaris2.0/blob/master/Bot/README.md)
+  * 🤖 [AI CHAT](https://github.com/Myxelium/Lunaris2.0/blob/master/Bot/Handler/ChatCommand/readme.md)
+  * 🎵 [Music Player](https://github.com/Myxelium/Lunaris2.0/tree/master/Bot/Handler/MusicPlayer)
+
 ## Contributing
 
 Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

application.yml

@@ -2,6 +2,14 @@ server: # REST and WS server
   port: 2333
   address: 0.0.0.0
 plugins:
+  jellylink:
+    jellyfin:
+      baseUrl: "http://192.168.50.244:8096"
+      username: "Lunaris"
+      password: "Lunaris"
+      searchLimit: 5
+      audioQuality: "ORIGINAL"   # ORIGINAL | HIGH | MEDIUM | LOW | custom number (kbps)
+      audioCodec: "mp3"          # mp3 | aac | opus | vorbis | flac (only used when not ORIGINAL)
   lavasrc:
     providers: # Custom providers for track loading. This is the default
       # - "dzisrc:%ISRC%" # Deezer ISRC provider