move classes to portable server project

Emby.Server.Implementations/ScheduledTasks/ChapterImagesTask.cs

@@ -0,0 +1,192 @@
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.MediaEncoding;
+using MediaBrowser.Controller.Persistence;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Tasks;
+
+namespace Emby.Server.Implementations.ScheduledTasks
+{
+    /// <summary>
+    /// Class ChapterImagesTask
+    /// </summary>
+    class ChapterImagesTask : IScheduledTask
+    {
+        /// <summary>
+        /// The _logger
+        /// </summary>
+        private readonly ILogger _logger;
+        /// <summary>
+        /// The _library manager
+        /// </summary>
+        private readonly ILibraryManager _libraryManager;
+
+        private readonly IItemRepository _itemRepo;
+
+        private readonly IApplicationPaths _appPaths;
+
+        private readonly IEncodingManager _encodingManager;
+        private readonly IFileSystem _fileSystem;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ChapterImagesTask" /> class.
+        /// </summary>
+        public ChapterImagesTask(ILogManager logManager, ILibraryManager libraryManager, IItemRepository itemRepo, IApplicationPaths appPaths, IEncodingManager encodingManager, IFileSystem fileSystem)
+        {
+            _logger = logManager.GetLogger(GetType().Name);
+            _libraryManager = libraryManager;
+            _itemRepo = itemRepo;
+            _appPaths = appPaths;
+            _encodingManager = encodingManager;
+            _fileSystem = fileSystem;
+        }
+
+        /// <summary>
+        /// Creates the triggers that define when the task will run
+        /// </summary>
+        public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
+        {
+            return new[] { 
+            
+                new TaskTriggerInfo
+                {
+                    Type = TaskTriggerInfo.TriggerDaily,
+                    TimeOfDayTicks = TimeSpan.FromHours(1).Ticks,
+                    MaxRuntimeMs = Convert.ToInt32(TimeSpan.FromHours(4).TotalMilliseconds)
+                }
+            };
+        }
+
+        public string Key
+        {
+            get { return "RefreshChapterImages"; }
+        }
+
+        /// <summary>
+        /// Returns the task to be executed
+        /// </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 videos = _libraryManager.GetItemList(new InternalItemsQuery
+            {
+                MediaTypes = new[] { MediaType.Video },
+                IsFolder = false,
+                Recursive = true
+            })
+                .OfType<Video>()
+                .ToList();
+
+            var numComplete = 0;
+
+            var failHistoryPath = Path.Combine(_appPaths.CachePath, "chapter-failures.txt");
+
+            List<string> previouslyFailedImages;
+
+            try
+            {
+                previouslyFailedImages = _fileSystem.ReadAllText(failHistoryPath)
+                    .Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries)
+                    .ToList();
+            }
+            catch (FileNotFoundException)
+            {
+                previouslyFailedImages = new List<string>();
+            }
+            catch (IOException)
+            {
+                previouslyFailedImages = new List<string>();
+            }
+
+            foreach (var video in videos)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+
+                var key = video.Path + video.DateModified.Ticks;
+
+                var extract = !previouslyFailedImages.Contains(key, StringComparer.OrdinalIgnoreCase);
+
+                try
+                {
+                    var chapters = _itemRepo.GetChapters(video.Id).ToList();
+
+                    var success = await _encodingManager.RefreshChapterImages(new ChapterImageRefreshOptions
+                    {
+                        SaveChapters = true,
+                        ExtractImages = extract,
+                        Video = video,
+                        Chapters = chapters
+
+                    }, CancellationToken.None);
+
+                    if (!success)
+                    {
+                        previouslyFailedImages.Add(key);
+
+                        var parentPath = Path.GetDirectoryName(failHistoryPath);
+
+                        _fileSystem.CreateDirectory(parentPath);
+
+                        _fileSystem.WriteAllText(failHistoryPath, string.Join("|", previouslyFailedImages.ToArray()));
+                    }
+
+                    numComplete++;
+                    double percent = numComplete;
+                    percent /= videos.Count;
+
+                    progress.Report(100 * percent);
+                }
+                catch (ObjectDisposedException)
+                {
+                    break;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the name of the task
+        /// </summary>
+        /// <value>The name.</value>
+        public string Name
+        {
+            get
+            {
+                return "Chapter image extraction";
+            }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public string Description
+        {
+            get { return "Creates thumbnails for videos that have chapters."; }
+        }
+
+        /// <summary>
+        /// Gets the category.
+        /// </summary>
+        /// <value>The category.</value>
+        public string Category
+        {
+            get
+            {
+                return "Library";
+            }
+        }
+    }
+}