Add progress and complettion indication

Jellyfin.Plugin.Jellypod/Services/PlaybackReportingService.cs

@@ -0,0 +1,229 @@
+using System;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Plugin.Jellypod.Models;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Session;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Plugin.Jellypod.Services;
+
+/// <summary>
+/// Service that listens to Jellyfin playback events and tracks podcast progress.
+/// </summary>
+public class PlaybackReportingService : IHostedService, IDisposable
+{
+    private readonly ISessionManager _sessionManager;
+    private readonly IPodcastStorageService _storageService;
+    private readonly ILogger<PlaybackReportingService> _logger;
+    private bool _disposed;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PlaybackReportingService"/> class.
+    /// </summary>
+    /// <param name="sessionManager">Session manager.</param>
+    /// <param name="storageService">Podcast storage service.</param>
+    /// <param name="logger">Logger instance.</param>
+    public PlaybackReportingService(
+        ISessionManager sessionManager,
+        IPodcastStorageService storageService,
+        ILogger<PlaybackReportingService> logger)
+    {
+        _sessionManager = sessionManager;
+        _storageService = storageService;
+        _logger = logger;
+    }
+
+    /// <inheritdoc />
+    public Task StartAsync(CancellationToken cancellationToken)
+    {
+        _sessionManager.PlaybackStart += OnPlaybackStart;
+        _sessionManager.PlaybackStopped += OnPlaybackStopped;
+        _sessionManager.PlaybackProgress += OnPlaybackProgress;
+
+        _logger.LogInformation("Jellypod playback reporting service started");
+        return Task.CompletedTask;
+    }
+
+    /// <inheritdoc />
+    public Task StopAsync(CancellationToken cancellationToken)
+    {
+        _sessionManager.PlaybackStart -= OnPlaybackStart;
+        _sessionManager.PlaybackStopped -= OnPlaybackStopped;
+        _sessionManager.PlaybackProgress -= OnPlaybackProgress;
+
+        _logger.LogInformation("Jellypod playback reporting service stopped");
+        return Task.CompletedTask;
+    }
+
+    /// <inheritdoc />
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    /// <summary>
+    /// Releases unmanaged and optionally managed resources.
+    /// </summary>
+    /// <param name="disposing">True to release both managed and unmanaged resources.</param>
+    protected virtual void Dispose(bool disposing)
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        if (disposing)
+        {
+            _sessionManager.PlaybackStart -= OnPlaybackStart;
+            _sessionManager.PlaybackStopped -= OnPlaybackStopped;
+            _sessionManager.PlaybackProgress -= OnPlaybackProgress;
+        }
+
+        _disposed = true;
+    }
+
+    private void OnPlaybackStart(object? sender, PlaybackProgressEventArgs e)
+    {
+        _ = HandlePlaybackEventAsync(e, "start");
+    }
+
+    private void OnPlaybackProgress(object? sender, PlaybackProgressEventArgs e)
+    {
+        _ = HandlePlaybackEventAsync(e, "progress");
+    }
+
+    private void OnPlaybackStopped(object? sender, PlaybackStopEventArgs e)
+    {
+        _ = HandlePlaybackStoppedAsync(e);
+    }
+
+    private async Task HandlePlaybackEventAsync(PlaybackProgressEventArgs e, string eventType)
+    {
+        try
+        {
+            var item = e.Item;
+            if (item == null)
+            {
+                return;
+            }
+
+            // Check if this is a channel item (podcast episode)
+            var channelId = item.ChannelId;
+            if (channelId == Guid.Empty)
+            {
+                return;
+            }
+
+            // Try to find the episode by its ID
+            var episodeIdStr = item.Id.ToString("N");
+            var episode = await FindEpisodeByIdAsync(episodeIdStr).ConfigureAwait(false);
+
+            if (episode == null)
+            {
+                return;
+            }
+
+            _logger.LogDebug(
+                "Playback {EventType} for podcast episode: {Title}, Position: {Position}",
+                eventType,
+                episode.Episode.Title,
+                e.PlaybackPositionTicks);
+
+            // Update progress
+            episode.Episode.PlaybackPositionTicks = e.PlaybackPositionTicks ?? 0;
+            episode.Episode.LastPlayedDate = DateTime.UtcNow;
+
+            await _storageService.UpdatePodcastAsync(episode.Podcast).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error handling playback {EventType} event", eventType);
+        }
+    }
+
+    private async Task HandlePlaybackStoppedAsync(PlaybackStopEventArgs e)
+    {
+        try
+        {
+            var item = e.Item;
+            if (item == null)
+            {
+                return;
+            }
+
+            // Check if this is a channel item (podcast episode)
+            var channelId = item.ChannelId;
+            if (channelId == Guid.Empty)
+            {
+                return;
+            }
+
+            // Try to find the episode by its ID
+            var episodeIdStr = item.Id.ToString("N");
+            var episode = await FindEpisodeByIdAsync(episodeIdStr).ConfigureAwait(false);
+
+            if (episode == null)
+            {
+                return;
+            }
+
+            var positionTicks = e.PlaybackPositionTicks ?? 0;
+            episode.Episode.PlaybackPositionTicks = positionTicks;
+            episode.Episode.LastPlayedDate = DateTime.UtcNow;
+
+            // Check if episode is complete (95% or more)
+            if (episode.Episode.Duration.HasValue && positionTicks > 0)
+            {
+                var durationTicks = episode.Episode.Duration.Value.Ticks;
+                var percentComplete = (double)positionTicks / durationTicks;
+
+                _logger.LogInformation(
+                    "Playback stopped for {Title} at {Percent:P1} complete",
+                    episode.Episode.Title,
+                    percentComplete);
+
+                if (percentComplete >= 0.95 && !episode.Episode.IsPlayed)
+                {
+                    episode.Episode.IsPlayed = true;
+                    episode.Episode.PlayCount++;
+                    _logger.LogInformation(
+                        "Episode marked as played: {Title} (played {Count} times)",
+                        episode.Episode.Title,
+                        episode.Episode.PlayCount);
+                }
+            }
+
+            await _storageService.UpdatePodcastAsync(episode.Podcast).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error handling playback stopped event");
+        }
+    }
+
+    private async Task<EpisodeWithPodcast?> FindEpisodeByIdAsync(string episodeId)
+    {
+        if (!Guid.TryParse(episodeId, out var episodeGuid))
+        {
+            return null;
+        }
+
+        var podcasts = await _storageService.GetAllPodcastsAsync().ConfigureAwait(false);
+        foreach (var podcast in podcasts)
+        {
+            var episode = podcast.Episodes.FirstOrDefault(e => e.Id == episodeGuid);
+            if (episode != null)
+            {
+                return new EpisodeWithPodcast(podcast, episode);
+            }
+        }
+
+        return null;
+    }
+
+    private sealed record EpisodeWithPodcast(Podcast Podcast, Episode Episode);
+}