moved cleanup of deleted files to their own service.

detaching of episodes when files are deleted is done through events now.

NzbDrone.Core/MediaFiles/GhostFileCleanupService.cs

@@ -0,0 +1,48 @@
+using System;
+using NLog;
+using NzbDrone.Common;
+
+namespace NzbDrone.Core.MediaFiles
+{
+    public interface ICleanGhostFiles
+    {
+        void RemoveNonExistingFiles(int seriesId);
+    }
+
+
+    public class GhostFileCleanupService : ICleanGhostFiles
+    {
+        private readonly IMediaFileService _mediaFileService;
+        private readonly DiskProvider _diskProvider;
+        private readonly Logger _logger;
+
+        public GhostFileCleanupService(IMediaFileService mediaFileService, DiskProvider diskProvider, Logger logger)
+        {
+            _mediaFileService = mediaFileService;
+            _diskProvider = diskProvider;
+            _logger = logger;
+        }
+
+        public void RemoveNonExistingFiles(int seriesId)
+        {
+            var seriesFile = _mediaFileService.GetFilesBySeries(seriesId);
+
+            foreach (var episodeFile in seriesFile)
+            {
+                try
+                {
+                    if (!_diskProvider.FileExists(episodeFile.Path))
+                    {
+                        _logger.Trace("File [{0}] no longer exists on disk. removing from db", episodeFile.Path);
+                        _mediaFileService.Delete(episodeFile);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    var message = String.Format("Unable to cleanup EpisodeFile in DB: {0}", episodeFile.Id);
+                    _logger.ErrorException(message, ex);
+                }
+            }
+        }
+    }
+}