Fixed: Generating Kodi episode metadata files when scanning series folder

src/NzbDrone.Core/Extras/ExtraService.cs

@@ -24,6 +24,7 @@ namespace NzbDrone.Core.Extras
     public class ExtraService : IExtraService,
                                 IHandle<MediaCoversUpdatedEvent>,
                                 IHandle<EpisodeFolderCreatedEvent>,
+                                IHandle<SeriesScannedEvent>,
                                 IHandle<SeriesRenamedEvent>
     {
         private readonly IMediaFileService _mediaFileService;
@@ -52,7 +53,7 @@ namespace NzbDrone.Core.Extras
         {
             ImportExtraFiles(localEpisode, episodeFile, isReadOnly);
             
-            CreateAfterImport(localEpisode.Series, episodeFile);
+            CreateAfterEpisodeImport(localEpisode.Series, episodeFile);
         }
 
         private void ImportExtraFiles(LocalEpisode localEpisode, EpisodeFile episodeFile, bool isReadOnly)
@@ -121,7 +122,7 @@ namespace NzbDrone.Core.Extras
             }
         }
 
-        private void CreateAfterImport(Series series, EpisodeFile episodeFile)
+        private void CreateAfterEpisodeImport(Series series, EpisodeFile episodeFile)
         {
             foreach (var extraFileManager in _extraFileManagers)
             {
@@ -130,6 +131,19 @@ namespace NzbDrone.Core.Extras
         }
 
         public void Handle(MediaCoversUpdatedEvent message)
+        {
+            if (message.Updated)
+            {
+                var series = message.Series;
+
+                foreach (var extraFileManager in _extraFileManagers)
+                {
+                    extraFileManager.CreateAfterMediaCoverUpdate(series);
+                }
+            }
+        }
+
+        public void Handle(SeriesScannedEvent message)
         {
             var series = message.Series;
             var episodeFiles = GetEpisodeFiles(series.Id);
@@ -146,7 +160,7 @@ namespace NzbDrone.Core.Extras
 
             foreach (var extraFileManager in _extraFileManagers)
             {
-                extraFileManager.CreateAfterEpisodeImport(series, message.SeriesFolder, message.SeasonFolder);
+                extraFileManager.CreateAfterEpisodeFolder(series, message.SeriesFolder, message.SeasonFolder);
             }
         }
 

src/NzbDrone.Core/Extras/Files/ExtraFileManager.cs

@@ -14,9 +14,10 @@ namespace NzbDrone.Core.Extras.Files
     public interface IManageExtraFiles
     {
         int Order { get; }
+        IEnumerable<ExtraFile> CreateAfterMediaCoverUpdate(Series series);
         IEnumerable<ExtraFile> CreateAfterSeriesScan(Series series, List<EpisodeFile> episodeFiles);
         IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, EpisodeFile episodeFile);
-        IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, string seriesFolder, string seasonFolder);
+        IEnumerable<ExtraFile> CreateAfterEpisodeFolder(Series series, string seriesFolder, string seasonFolder);
         IEnumerable<ExtraFile> MoveFilesAfterRename(Series series, List<EpisodeFile> episodeFiles);
         ExtraFile Import(Series series, EpisodeFile episodeFile, string path, string extension, bool readOnly);
     }
@@ -42,9 +43,10 @@ namespace NzbDrone.Core.Extras.Files
         }
 
         public abstract int Order { get; }
+        public abstract IEnumerable<ExtraFile> CreateAfterMediaCoverUpdate(Series series);
         public abstract IEnumerable<ExtraFile> CreateAfterSeriesScan(Series series, List<EpisodeFile> episodeFiles);
         public abstract IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, EpisodeFile episodeFile);
-        public abstract IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, string seriesFolder, string seasonFolder);
+        public abstract IEnumerable<ExtraFile> CreateAfterEpisodeFolder(Series series, string seriesFolder, string seasonFolder);
         public abstract IEnumerable<ExtraFile> MoveFilesAfterRename(Series series, List<EpisodeFile> episodeFiles);
         public abstract ExtraFile Import(Series series, EpisodeFile episodeFile, string path, string extension, bool readOnly);
 

src/NzbDrone.Core/Extras/Metadata/MetadataService.cs

@@ -56,6 +56,31 @@ namespace NzbDrone.Core.Extras.Metadata
 
         public override int Order => 0;
 
+        public override IEnumerable<ExtraFile> CreateAfterMediaCoverUpdate(Series series)
+        {
+            var metadataFiles = _metadataFileService.GetFilesBySeries(series.Id);
+            _cleanMetadataService.Clean(series);
+
+            if (!_diskProvider.FolderExists(series.Path))
+            {
+                _logger.Info("Series folder does not exist, skipping metadata image creation");
+                return Enumerable.Empty<MetadataFile>();
+            }
+
+            var files = new List<MetadataFile>();
+
+            foreach (var consumer in _metadataFactory.Enabled())
+            {
+                var consumerFiles = GetMetadataFilesForConsumer(consumer, metadataFiles);
+
+                files.AddRange(ProcessSeriesImages(consumer, series, consumerFiles));
+            }
+
+            _metadataFileService.Upsert(files);
+
+            return files;
+        }
+
         public override IEnumerable<ExtraFile> CreateAfterSeriesScan(Series series, List<EpisodeFile> episodeFiles)
         {
             var metadataFiles = _metadataFileService.GetFilesBySeries(series.Id);
@@ -104,7 +129,7 @@ namespace NzbDrone.Core.Extras.Metadata
             return files;
         }
 
-        public override IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, string seriesFolder, string seasonFolder)
+        public override IEnumerable<ExtraFile> CreateAfterEpisodeFolder(Series series, string seriesFolder, string seasonFolder)
         {
             var metadataFiles = _metadataFileService.GetFilesBySeries(series.Id);
 

src/NzbDrone.Core/Extras/Others/OtherExtraService.cs

@@ -31,6 +31,11 @@ namespace NzbDrone.Core.Extras.Others
 
         public override int Order => 2;
 
+        public override IEnumerable<ExtraFile> CreateAfterMediaCoverUpdate(Series series)
+        {
+            return Enumerable.Empty<ExtraFile>();
+        }
+
         public override IEnumerable<ExtraFile> CreateAfterSeriesScan(Series series, List<EpisodeFile> episodeFiles)
         {
             return Enumerable.Empty<ExtraFile>();
@@ -41,7 +46,7 @@ namespace NzbDrone.Core.Extras.Others
             return Enumerable.Empty<ExtraFile>();
         }
 
-        public override IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, string seriesFolder, string seasonFolder)
+        public override IEnumerable<ExtraFile> CreateAfterEpisodeFolder(Series series, string seriesFolder, string seasonFolder)
         {
             return Enumerable.Empty<ExtraFile>();
         }

src/NzbDrone.Core/Extras/Subtitles/SubtitleService.cs

@@ -35,6 +35,11 @@ namespace NzbDrone.Core.Extras.Subtitles
 
         public override int Order => 1;
 
+        public override IEnumerable<ExtraFile> CreateAfterMediaCoverUpdate(Series series)
+        {
+            return Enumerable.Empty<SubtitleFile>();
+        }
+
         public override IEnumerable<ExtraFile> CreateAfterSeriesScan(Series series, List<EpisodeFile> episodeFiles)
         {
             return Enumerable.Empty<SubtitleFile>();
@@ -45,7 +50,7 @@ namespace NzbDrone.Core.Extras.Subtitles
             return Enumerable.Empty<SubtitleFile>();
         }
 
-        public override IEnumerable<ExtraFile> CreateAfterEpisodeImport(Series series, string seriesFolder, string seasonFolder)
+        public override IEnumerable<ExtraFile> CreateAfterEpisodeFolder(Series series, string seriesFolder, string seasonFolder)
         {
             return Enumerable.Empty<SubtitleFile>();
         }