Lower quality episodes are deleted on import (from disk and db)

NzbDrone.Core/MediaFiles/UpgradeMediaFileService.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using NLog;
+using NzbDrone.Common;
+using NzbDrone.Core.Parser.Model;
+
+namespace NzbDrone.Core.MediaFiles
+{
+    public interface IUpgradeMediaFiles
+    {
+        EpisodeFile UpgradeEpisodeFile(EpisodeFile episodeFile, LocalEpisode localEpisode);
+    }
+
+    public class UpgradeMediaFileService : IUpgradeMediaFiles
+    {
+        private readonly IRecycleBinProvider _recycleBinProvider;
+        private readonly IMediaFileService _mediaFileService;
+        private readonly IMoveEpisodeFiles _episodeFileMover;
+        private readonly Logger _logger;
+
+        public UpgradeMediaFileService(IRecycleBinProvider recycleBinProvider,
+                                       IMediaFileService mediaFileService,
+                                       IMoveEpisodeFiles episodeFileMover,
+                                       Logger logger)
+        {
+            _recycleBinProvider = recycleBinProvider;
+            _mediaFileService = mediaFileService;
+            _episodeFileMover = episodeFileMover;
+            _logger = logger;
+        }
+
+        public EpisodeFile UpgradeEpisodeFile(EpisodeFile episodeFile, LocalEpisode localEpisode)
+        {
+            var existingFiles = localEpisode.Episodes
+                                            .Where(e => e.EpisodeFileId > 0)
+                                            .Select(e => e.EpisodeFile.Value)
+                                            .GroupBy(e => e.Id);
+
+            foreach (var existingFile in existingFiles)
+            {
+                var file = existingFile.First();
+                _logger.Trace("Removing existing episode file: {0}", file);
+
+                _recycleBinProvider.DeleteFile(file.Path);
+                _mediaFileService.Delete(file);
+            }
+
+            _logger.Trace("Moving episode file: {0}", episodeFile);
+            return _episodeFileMover.MoveEpisodeFile(episodeFile, localEpisode);
+        }
+    }
+}