From 710c1073c10b57099843ce701b7a100285daf4c5 Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Tue, 21 May 2013 00:04:38 -0400
Subject: [PATCH] move audio image extraction back into library scan

---
 .../Entities/Audio/MusicAlbum.cs              |   6 +-
 .../Providers/MediaInfo/AudioImageProvider.cs | 120 ++++++--
 .../Providers/Movies/MovieDbImagesProvider.cs |   6 +-
 .../Providers/Movies/MovieDbProvider.cs       |  23 +-
 .../Providers/Movies/TmdbPersonProvider.cs    |   6 +-
 .../Providers/TV/RemoteSeriesProvider.cs      |   3 +-
 ...MediaBrowser.Server.Implementations.csproj |   1 -
 .../ScheduledTasks/AudioImagesTask.cs         | 276 ------------------
 8 files changed, 114 insertions(+), 327 deletions(-)
 delete mode 100644 MediaBrowser.Server.Implementations/ScheduledTasks/AudioImagesTask.cs

diff --git a/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs b/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
index ebefd0d027..f3fdbb4990 100644
--- a/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
+++ b/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
@@ -118,16 +118,12 @@ namespace MediaBrowser.Controller.Entities.Audio
                 var images = base.Images;
                 string primaryImagePath;
 
-                if (images == null || !images.TryGetValue(ImageType.Primary, out primaryImagePath))
+                if (!images.TryGetValue(ImageType.Primary, out primaryImagePath))
                 {
                     var image = Children.Select(c => c.PrimaryImagePath).FirstOrDefault(c => !string.IsNullOrEmpty(c));
 
                     if (!string.IsNullOrEmpty(image))
                     {
-                        if (images == null)
-                        {
-                            images = new Dictionary<ImageType, string>();
-                        }
                         images[ImageType.Primary] = image;
                     }
                 }
diff --git a/MediaBrowser.Controller/Providers/MediaInfo/AudioImageProvider.cs b/MediaBrowser.Controller/Providers/MediaInfo/AudioImageProvider.cs
index 85e8722b32..a925ad11d4 100644
--- a/MediaBrowser.Controller/Providers/MediaInfo/AudioImageProvider.cs
+++ b/MediaBrowser.Controller/Providers/MediaInfo/AudioImageProvider.cs
@@ -1,9 +1,14 @@
-using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Common.MediaInfo;
+using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.Logging;
 using System;
+using System.Collections.Concurrent;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -14,14 +19,41 @@ namespace MediaBrowser.Controller.Providers.MediaInfo
     /// </summary>
     public class AudioImageProvider : BaseMetadataProvider
     {
+        /// <summary>
+        /// Gets or sets the image cache.
+        /// </summary>
+        /// <value>The image cache.</value>
+        public FileSystemRepository ImageCache { get; set; }
+
+        /// <summary>
+        /// The _locks
+        /// </summary>
+        private readonly ConcurrentDictionary<string, SemaphoreSlim> _locks = new ConcurrentDictionary<string, SemaphoreSlim>();
+
+        /// <summary>
+        /// The _media encoder
+        /// </summary>
+        private readonly IMediaEncoder _mediaEncoder;
+
+        /// <summary>
+        /// The _library manager
+        /// </summary>
+        private readonly ILibraryManager _libraryManager;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="BaseMetadataProvider" /> class.
         /// </summary>
         /// <param name="logManager">The log manager.</param>
         /// <param name="configurationManager">The configuration manager.</param>
-        public AudioImageProvider(ILogManager logManager, IServerConfigurationManager configurationManager)
+        /// <param name="libraryManager">The library manager.</param>
+        /// <param name="mediaEncoder">The media encoder.</param>
+        public AudioImageProvider(ILogManager logManager, IServerConfigurationManager configurationManager, ILibraryManager libraryManager, IMediaEncoder mediaEncoder)
             : base(logManager, configurationManager)
         {
+            _libraryManager = libraryManager;
+            _mediaEncoder = mediaEncoder;
+
+            ImageCache = new FileSystemRepository(Kernel.Instance.FFMpegManager.AudioImagesDataPath);
         }
 
         /// <summary>
@@ -55,42 +87,90 @@ namespace MediaBrowser.Controller.Providers.MediaInfo
         }
 
         /// <summary>
-        /// Needses the refresh internal.
+        /// Fetches metadata and returns true or false indicating if any work that requires persistence was done
         /// </summary>
         /// <param name="item">The item.</param>
-        /// <param name="providerInfo">The provider info.</param>
-        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
-        protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
+        /// <param name="force">if set to <c>true</c> [force].</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task{System.Boolean}.</returns>
+        public override async Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
         {
-            if (!string.IsNullOrEmpty(item.PrimaryImagePath))
+            var audio = (Audio)item;
+
+            if (string.IsNullOrEmpty(audio.PrimaryImagePath) && audio.MediaStreams.Any(s => s.Type == MediaStreamType.Video))
             {
-                return false;
+                try
+                {
+                    await CreateImagesForSong(audio, cancellationToken).ConfigureAwait(false);
+                }
+                catch (Exception ex)
+                {
+                    Logger.ErrorException("Error extracting image for {0}", ex, item.Name);
+                }
             }
-            return base.NeedsRefreshInternal(item, providerInfo);
+
+            SetLastRefreshed(item, DateTime.UtcNow);
+            return true;
         }
 
         /// <summary>
-        /// Fetches metadata and returns true or false indicating if any work that requires persistence was done
+        /// Creates the images for song.
         /// </summary>
         /// <param name="item">The item.</param>
-        /// <param name="force">if set to <c>true</c> [force].</param>
         /// <param name="cancellationToken">The cancellation token.</param>
-        /// <returns>Task{System.Boolean}.</returns>
-        public override Task<bool> FetchAsync(BaseItem item, bool force, CancellationToken cancellationToken)
+        /// <returns>Task.</returns>
+        /// <exception cref="System.InvalidOperationException">Can't extract an image unless the audio file has an embedded image.</exception>
+        private async Task CreateImagesForSong(Audio item, CancellationToken cancellationToken)
         {
-            if (force || string.IsNullOrEmpty(item.PrimaryImagePath))
+            cancellationToken.ThrowIfCancellationRequested();
+
+            var album = item.Parent as MusicAlbum;
+
+            var filename = item.Album ?? string.Empty;
+            filename += item.Artist ?? string.Empty;
+            filename += album == null ? item.Id.ToString("N") + item.DateModified.Ticks : album.Id.ToString("N") + album.DateModified.Ticks;
+
+            var path = ImageCache.GetResourcePath(filename + "_primary", ".jpg");
+
+            if (!ImageCache.ContainsFilePath(path))
             {
-                var album = item.ResolveArgs.Parent as MusicAlbum;
+                var semaphore = GetLock(path);
 
-                if (album != null)
+                // Acquire a lock
+                await semaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
+
+                // Check again
+                if (!ImageCache.ContainsFilePath(path))
+                {
+                    try
+                    {
+                        await _mediaEncoder.ExtractImage(new[] { item.Path }, InputType.AudioFile, null, path, cancellationToken).ConfigureAwait(false);
+                    }
+                    finally
+                    {
+                        semaphore.Release();
+                    }
+
+                    // Image is already in the cache
+                    item.PrimaryImagePath = path;
+
+                    await _libraryManager.UpdateItem(item, cancellationToken).ConfigureAwait(false);
+                }
+                else
                 {
-                    // First try to use the parent's image
-                    item.PrimaryImagePath = item.ResolveArgs.Parent.PrimaryImagePath;
+                    semaphore.Release();
                 }
             }
+        }
 
-            SetLastRefreshed(item, DateTime.UtcNow);
-            return TrueTaskResult;
+        /// <summary>
+        /// Gets the lock.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <returns>SemaphoreSlim.</returns>
+        private SemaphoreSlim GetLock(string filename)
+        {
+            return _locks.GetOrAdd(filename, key => new SemaphoreSlim(1, 1));
         }
     }
 }
diff --git a/MediaBrowser.Controller/Providers/Movies/MovieDbImagesProvider.cs b/MediaBrowser.Controller/Providers/Movies/MovieDbImagesProvider.cs
index f62ea24835..4fdc2a17f2 100644
--- a/MediaBrowser.Controller/Providers/Movies/MovieDbImagesProvider.cs
+++ b/MediaBrowser.Controller/Providers/Movies/MovieDbImagesProvider.cs
@@ -153,8 +153,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             }
 
             // Don't refresh if we already have both poster and backdrop and we're not refreshing images
-            if (item.LocationType == LocationType.FileSystem && !ConfigurationManager.Configuration.RefreshItemImages 
-                && item.HasLocalImage("folder") && item.HasLocalImage("backdrop"))
+            if (!ConfigurationManager.Configuration.RefreshItemImages && item.HasImage(ImageType.Primary) && item.BackdropImagePaths.Count > 0)
             {
                 return false;
             }
@@ -211,8 +210,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             {
                 Url = string.Format(GetImages, id, MovieDbProvider.ApiKey, item is BoxSet ? "collection" : "movie"),
                 CancellationToken = cancellationToken,
-                AcceptHeader = MovieDbProvider.AcceptHeader,
-                EnableResponseCache = true
+                AcceptHeader = MovieDbProvider.AcceptHeader
 
             }).ConfigureAwait(false))
             {
diff --git a/MediaBrowser.Controller/Providers/Movies/MovieDbProvider.cs b/MediaBrowser.Controller/Providers/Movies/MovieDbProvider.cs
index aeb8992e6c..fac7dfb0c8 100644
--- a/MediaBrowser.Controller/Providers/Movies/MovieDbProvider.cs
+++ b/MediaBrowser.Controller/Providers/Movies/MovieDbProvider.cs
@@ -175,8 +175,7 @@ namespace MediaBrowser.Controller.Providers.Movies
                 {
                     Url = string.Format(TmdbConfigUrl, ApiKey),
                     CancellationToken = cancellationToken,
-                    AcceptHeader = AcceptHeader,
-                    EnableResponseCache = true
+                    AcceptHeader = AcceptHeader
 
                 }).ConfigureAwait(false))
                 {
@@ -475,8 +474,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             {
                 Url = url3,
                 CancellationToken = cancellationToken,
-                AcceptHeader = AcceptHeader,
-                EnableResponseCache = true
+                AcceptHeader = AcceptHeader
 
             }).ConfigureAwait(false))
             {
@@ -509,8 +507,7 @@ namespace MediaBrowser.Controller.Providers.Movies
                 {
                     Url = url3,
                     CancellationToken = cancellationToken,
-                    AcceptHeader = AcceptHeader,
-                    EnableResponseCache = true
+                    AcceptHeader = AcceptHeader
 
                 }).ConfigureAwait(false))
                 {
@@ -549,8 +546,7 @@ namespace MediaBrowser.Controller.Providers.Movies
                         {
                             Url = url3,
                             CancellationToken = cancellationToken,
-                            AcceptHeader = AcceptHeader,
-                            EnableResponseCache = true
+                            AcceptHeader = AcceptHeader
 
                         }).ConfigureAwait(false))
                         {
@@ -632,8 +628,7 @@ namespace MediaBrowser.Controller.Providers.Movies
                 {
                     Url = url,
                     CancellationToken = cancellationToken,
-                    AcceptHeader = AcceptHeader,
-                    EnableResponseCache = true
+                    AcceptHeader = AcceptHeader
 
                 }).ConfigureAwait(false))
                 {
@@ -710,8 +705,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             {
                 Url = url,
                 CancellationToken = cancellationToken,
-                AcceptHeader = AcceptHeader,
-                EnableResponseCache = true
+                AcceptHeader = AcceptHeader
 
             }).ConfigureAwait(false))
             {
@@ -732,8 +726,7 @@ namespace MediaBrowser.Controller.Providers.Movies
                     {
                         Url = url,
                         CancellationToken = cancellationToken,
-                        AcceptHeader = AcceptHeader,
-                        EnableResponseCache = true
+                        AcceptHeader = AcceptHeader
 
                     }).ConfigureAwait(false))
                     {
@@ -896,7 +889,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             try
             {
                 // Limit to three requests per second
-                var diff = 500 - (DateTime.Now - _lastRequestDate).TotalMilliseconds;
+                var diff = 340 - (DateTime.Now - _lastRequestDate).TotalMilliseconds;
 
                 if (diff > 0)
                 {
diff --git a/MediaBrowser.Controller/Providers/Movies/TmdbPersonProvider.cs b/MediaBrowser.Controller/Providers/Movies/TmdbPersonProvider.cs
index 5cf5fcc18d..b909986437 100644
--- a/MediaBrowser.Controller/Providers/Movies/TmdbPersonProvider.cs
+++ b/MediaBrowser.Controller/Providers/Movies/TmdbPersonProvider.cs
@@ -145,8 +145,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             {
                 Url = url,
                 CancellationToken = cancellationToken,
-                AcceptHeader = MovieDbProvider.AcceptHeader,
-                EnableResponseCache = true
+                AcceptHeader = MovieDbProvider.AcceptHeader
 
             }).ConfigureAwait(false))
             {
@@ -172,8 +171,7 @@ namespace MediaBrowser.Controller.Providers.Movies
             {
                 Url = url,
                 CancellationToken = cancellationToken,
-                AcceptHeader = MovieDbProvider.AcceptHeader,
-                EnableResponseCache = true
+                AcceptHeader = MovieDbProvider.AcceptHeader
 
             }).ConfigureAwait(false))
             {
diff --git a/MediaBrowser.Controller/Providers/TV/RemoteSeriesProvider.cs b/MediaBrowser.Controller/Providers/TV/RemoteSeriesProvider.cs
index 82ff0b98e9..f6a77026b8 100644
--- a/MediaBrowser.Controller/Providers/TV/RemoteSeriesProvider.cs
+++ b/MediaBrowser.Controller/Providers/TV/RemoteSeriesProvider.cs
@@ -590,8 +590,7 @@ namespace MediaBrowser.Controller.Providers.TV
             {
                 Url = url,
                 ResourcePool = TvDbResourcePool,
-                CancellationToken = cancellationToken,
-                EnableResponseCache = true
+                CancellationToken = cancellationToken
 
             }).ConfigureAwait(false))
             {
diff --git a/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj b/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
index 587ee0346e..e1f5a1aa30 100644
--- a/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
+++ b/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
@@ -151,7 +151,6 @@
     <Compile Include="ScheduledTasks\ChapterImagesTask.cs" />
     <Compile Include="ScheduledTasks\ImageCleanupTask.cs" />
     <Compile Include="ScheduledTasks\PluginUpdateTask.cs" />
-    <Compile Include="ScheduledTasks\AudioImagesTask.cs" />
     <Compile Include="ScheduledTasks\RefreshMediaLibraryTask.cs" />
     <Compile Include="ScheduledTasks\VideoImagesTask.cs" />
     <Compile Include="ServerApplicationPaths.cs" />
diff --git a/MediaBrowser.Server.Implementations/ScheduledTasks/AudioImagesTask.cs b/MediaBrowser.Server.Implementations/ScheduledTasks/AudioImagesTask.cs
deleted file mode 100644
index c56a2b54a6..0000000000
--- a/MediaBrowser.Server.Implementations/ScheduledTasks/AudioImagesTask.cs
+++ /dev/null
@@ -1,276 +0,0 @@
-using MediaBrowser.Common.IO;
-using MediaBrowser.Common.MediaInfo;
-using MediaBrowser.Common.ScheduledTasks;
-using MediaBrowser.Controller;
-using MediaBrowser.Controller.Entities.Audio;
-using MediaBrowser.Controller.Library;
-using MediaBrowser.Model.Entities;
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Model.Logging;
-using MoreLinq;
-
-namespace MediaBrowser.Server.Implementations.ScheduledTasks
-{
-    /// <summary>
-    /// Class AudioImagesTask
-    /// </summary>
-    public class AudioImagesTask : IScheduledTask
-    {
-        /// <summary>
-        /// Gets or sets the image cache.
-        /// </summary>
-        /// <value>The image cache.</value>
-        public FileSystemRepository ImageCache { get; set; }
-
-        /// <summary>
-        /// The _library manager
-        /// </summary>
-        private readonly ILibraryManager _libraryManager;
-        /// <summary>
-        /// The _media encoder
-        /// </summary>
-        private readonly IMediaEncoder _mediaEncoder;
-
-        private readonly ILogger _logger;
-
-
-        /// <summary>
-        /// The _locks
-        /// </summary>
-        private readonly ConcurrentDictionary<string, SemaphoreSlim> _locks = new ConcurrentDictionary<string, SemaphoreSlim>();
-
-        private readonly List<Audio> _newlyAddedItems = new List<Audio>();
-
-        private const int NewItemDelay = 60000;
-
-        /// <summary>
-        /// The current new item timer
-        /// </summary>
-        /// <value>The new item timer.</value>
-        private Timer NewItemTimer { get; set; }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="AudioImagesTask" /> class.
-        /// </summary>
-        /// <param name="libraryManager">The library manager.</param>
-        /// <param name="mediaEncoder">The media encoder.</param>
-        public AudioImagesTask(ILibraryManager libraryManager, IMediaEncoder mediaEncoder, ILogManager logManager)
-        {
-            _libraryManager = libraryManager;
-            _mediaEncoder = mediaEncoder;
-            _logger = logManager.GetLogger(GetType().Name);
-
-            ImageCache = new FileSystemRepository(Kernel.Instance.FFMpegManager.AudioImagesDataPath);
-
-            libraryManager.ItemAdded += libraryManager_ItemAdded;
-            libraryManager.ItemUpdated += libraryManager_ItemAdded;
-        }
-
-        /// <summary>
-        /// Handles the ItemAdded event of the libraryManager control.
-        /// </summary>
-        /// <param name="sender">The source of the event.</param>
-        /// <param name="e">The <see cref="ItemChangeEventArgs"/> instance containing the event data.</param>
-        void libraryManager_ItemAdded(object sender, ItemChangeEventArgs e)
-        {
-            var audio = e.Item as Audio;
-
-            if (audio != null)
-            {
-                lock (_newlyAddedItems)
-                {
-                    _newlyAddedItems.Add(audio);
-
-                    if (NewItemTimer == null)
-                    {
-                        NewItemTimer = new Timer(NewItemTimerCallback, null, NewItemDelay, Timeout.Infinite);
-                    }
-                    else
-                    {
-                        NewItemTimer.Change(NewItemDelay, Timeout.Infinite);
-                    }
-                }
-            }
-        }
-
-        /// <summary>
-        /// News the item timer callback.
-        /// </summary>
-        /// <param name="state">The state.</param>
-        private async void NewItemTimerCallback(object state)
-        {
-            List<Audio> newSongs;
-
-            // Lock the list and release all resources
-            lock (_newlyAddedItems)
-            {
-                newSongs = _newlyAddedItems.DistinctBy(i => i.Id).ToList();
-                _newlyAddedItems.Clear();
-
-                NewItemTimer.Dispose();
-                NewItemTimer = null;
-            }
-
-            foreach (var item in newSongs
-                .Where(i => i.LocationType == LocationType.FileSystem && string.IsNullOrEmpty(i.PrimaryImagePath) && i.MediaStreams.Any(m => m.Type == MediaStreamType.Video))
-                .Take(10))
-            {
-                try
-                {
-                    await CreateImagesForSong(item, CancellationToken.None).ConfigureAwait(false);
-                }
-                catch (Exception ex)
-                {
-                    _logger.ErrorException("Error creating image for {0}", ex, item.Name);
-                }
-            }
-        }
-
-        /// <summary>
-        /// Gets the name of the task
-        /// </summary>
-        /// <value>The name.</value>
-        public string Name
-        {
-            get { return "Audio image extraction"; }
-        }
-
-        /// <summary>
-        /// Gets the description.
-        /// </summary>
-        /// <value>The description.</value>
-        public string Description
-        {
-            get { return "Extracts images from audio files that do not have external images."; }
-        }
-
-        /// <summary>
-        /// Gets the category.
-        /// </summary>
-        /// <value>The category.</value>
-        public string Category
-        {
-            get { return "Library"; }
-        }
-
-        /// <summary>
-        /// Executes the task
-        /// </summary>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        /// <param name="progress">The progress.</param>
-        /// <returns>Task.</returns>
-        public async Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
-        {
-            var items = _libraryManager.RootFolder.RecursiveChildren
-                .OfType<Audio>()
-                .Where(i => i.LocationType == LocationType.FileSystem && string.IsNullOrEmpty(i.PrimaryImagePath) && i.MediaStreams.Any(m => m.Type == MediaStreamType.Video))
-                .ToList();
-
-            progress.Report(0);
-
-            var numComplete = 0;
-
-            foreach (var item in items)
-            {
-                try
-                {
-                    await CreateImagesForSong(item, cancellationToken).ConfigureAwait(false);
-                }
-                catch
-                {
-                    // Already logged at lower levels.
-                    // Just don't let the task fail
-                }
-
-                numComplete++;
-                double percent = numComplete;
-                percent /= items.Count;
-
-                progress.Report(100 * percent);
-            }
-
-            progress.Report(100);
-        }
-
-        /// <summary>
-        /// Creates the images for song.
-        /// </summary>
-        /// <param name="item">The item.</param>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        /// <returns>Task.</returns>
-        private async Task CreateImagesForSong(Audio item, CancellationToken cancellationToken)
-        {
-            cancellationToken.ThrowIfCancellationRequested();
-
-            if (item.MediaStreams.All(i => i.Type != MediaStreamType.Video))
-            {
-                throw new InvalidOperationException("Can't extract an image unless the audio file has an embedded image.");
-            }
-
-            var album = item.Parent as MusicAlbum;
-
-            var filename = item.Album ?? string.Empty;
-
-            filename += album == null ? item.Id.ToString("N") + item.DateModified.Ticks : album.Id.ToString("N") + album.DateModified.Ticks;
-
-            var path = ImageCache.GetResourcePath(filename + "_primary", ".jpg");
-
-            if (!ImageCache.ContainsFilePath(path))
-            {
-                var semaphore = GetLock(path);
-
-                // Acquire a lock
-                await semaphore.WaitAsync(cancellationToken).ConfigureAwait(false);
-
-                // Check again
-                if (!ImageCache.ContainsFilePath(path))
-                {
-                    try
-                    {
-                        await _mediaEncoder.ExtractImage(new[] { item.Path }, InputType.AudioFile, null, path, cancellationToken).ConfigureAwait(false);
-                    }
-                    finally
-                    {
-                        semaphore.Release();
-                    }
-
-                    // Image is already in the cache
-                    item.PrimaryImagePath = path;
-
-                    await _libraryManager.UpdateItem(item, cancellationToken).ConfigureAwait(false);
-                }
-                else
-                {
-                    semaphore.Release();
-                }
-            }
-        }
-
-        /// <summary>
-        /// Gets the default triggers.
-        /// </summary>
-        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
-        public IEnumerable<ITaskTrigger> GetDefaultTriggers()
-        {
-            return new ITaskTrigger[]
-                {
-                    new DailyTrigger { TimeOfDay = TimeSpan.FromHours(1) }
-                };
-        }
-
-        /// <summary>
-        /// Gets the lock.
-        /// </summary>
-        /// <param name="filename">The filename.</param>
-        /// <returns>System.Object.</returns>
-        private SemaphoreSlim GetLock(string filename)
-        {
-            return _locks.GetOrAdd(filename, key => new SemaphoreSlim(1, 1));
-        }
-    }
-}