/// <summary>
/// Asynchronously tries to extract episode metadata for the given <param name="mediaItemAccessor"></param>
/// </summary>
/// <param name="mediaItemAccessor">Points to the resource for which we try to extract metadata</param>
/// <param name="extractedAspectData">Dictionary of <see cref="MediaItemAspect"/>s with the extracted metadata</param>
/// <param name="forceQuickMode">If <c>true</c>, nothing is downloaded from the internet</param>
/// <returns><c>true</c> if metadata was found and stored into <param name="extractedAspectData"></param>, else <c>false</c></returns>
private async Task <bool> TryExtractEpsiodeMetadataAsync(IResourceAccessor mediaItemAccessor, IDictionary <Guid, IList <MediaItemAspect> > extractedAspectData, bool forceQuickMode)
{
// Get a unique number for this call to TryExtractMetadataAsync. We use this to make reading the debug log easier.
// This MetadataExtractor is called in parallel for multiple MediaItems so that the respective debug log entries
// for one call are not contained one after another in debug log. We therefore prepend this number before every log entry.
var miNumber = Interlocked.Increment(ref _lastMediaItemNumber);
bool isStub = extractedAspectData.ContainsKey(StubAspect.ASPECT_ID);
try
{
_debugLogger.Info("[#{0}]: Start extracting metadata for resource '{1}' (forceQuickMode: {2})", miNumber, mediaItemAccessor, forceQuickMode);
// This MetadataExtractor only works for MediaItems accessible by an IFileSystemResourceAccessor.
// Otherwise it is not possible to find a nfo-file in the MediaItem's directory or parent directory.
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; mediaItemAccessor is not an IFileSystemResourceAccessor", miNumber);
return(false);
}
// We only extract metadata with this MetadataExtractor, if another MetadataExtractor that was applied before
// has identified this MediaItem as a video and therefore added a VideoAspect.
if (!extractedAspectData.ContainsKey(VideoAspect.ASPECT_ID))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; this resource is not a video", miNumber);
return(false);
}
// Here we try to find an IFileSystemResourceAccessor pointing to the episode nfo-file.
// If we don't find one, we cannot extract any metadata.
IFileSystemResourceAccessor episodeNfoFsra;
NfoSeriesEpisodeReader episodeNfoReader = null;
bool episodeDetailsFound = false;
if (TryGetEpisodeNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out episodeNfoFsra))
{
episodeDetailsFound = true;
// Now we (asynchronously) extract the metadata into a stub object.
// If no metadata was found, nothing can be stored in the MediaItemAspects.
episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, forceQuickMode, isStub, _httpClient, _settings);
using (episodeNfoFsra)
{
if (!await episodeNfoReader.TryReadMetadataAsync(episodeNfoFsra).ConfigureAwait(false))
{
_debugLogger.Warn("[#{0}]: No valid metadata found in episode nfo-file", miNumber);
return(false);
}
}
}
// Then we try to find an IFileSystemResourceAccessor pointing to the series nfo-file.
IFileSystemResourceAccessor seriesNfoFsra;
if (TryGetSeriesNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out seriesNfoFsra))
{
// If we found one, we (asynchronously) extract the metadata into a stub object and, if metadata was found,
// we store it into the episodeNfoReader so that the latter can store metadata from series and episode level into the MediaItemAspects.
var seriesNfoReader = new NfoSeriesReader(_debugLogger, miNumber, forceQuickMode, !episodeDetailsFound, isStub, _httpClient, _settings);
using (seriesNfoFsra)
{
if (await seriesNfoReader.TryReadMetadataAsync(seriesNfoFsra).ConfigureAwait(false))
{
//Check reimport
if (extractedAspectData.ContainsKey(ReimportAspect.ASPECT_ID))
{
SeriesInfo reimport = new SeriesInfo();
reimport.FromMetadata(extractedAspectData);
if (!VerifySeriesReimport(seriesNfoReader, reimport))
{
ServiceRegistration.Get <ILogger>().Info("NfoSeriesMetadataExtractor: Nfo series metadata from resource '{0}' ignored because it does not match reimport {1}", mediaItemAccessor, reimport);
return(false);
}
}
Stubs.SeriesStub series = seriesNfoReader.GetSeriesStubs().FirstOrDefault();
// Check if episode should be found
if (isStub || !episodeDetailsFound)
{
if (series != null && series.Episodes?.Count > 0)
{
List <Stubs.SeriesEpisodeStub> episodeStubs = null;
if (extractedAspectData.ContainsKey(EpisodeAspect.ASPECT_ID))
{
int? seasonNo = 0;
IEnumerable episodes;
if (MediaItemAspect.TryGetAttribute(extractedAspectData, EpisodeAspect.ATTR_SEASON, out seasonNo) && MediaItemAspect.TryGetAttribute(extractedAspectData, EpisodeAspect.ATTR_EPISODE, out episodes))
{
List <int> episodeNos = new List <int>();
CollectionUtils.AddAll(episodeNos, episodes.Cast <int>());
if (seasonNo.HasValue && episodeNos.Count > 0)
{
episodeStubs = series.Episodes.Where(e => e.Season == seasonNo.Value && episodeNos.Intersect(e.Episodes).Any()).ToList();
}
}
}
else
{
string title = null;
if (MediaItemAspect.TryGetAttribute(extractedAspectData, MediaAspect.ATTR_TITLE, out title))
{
Regex regex = new Regex(@"(?<series>[^\\]+).S(?<seasonnum>\d+)[\s|\.|\-|_]{0,1}E((?<episodenum>\d+)_?)+(?<episode>.*)");
Match match = regex.Match(title);
if (match.Success && match.Groups["seasonnum"].Length > 0 && match.Groups["episodenum"].Length > 0)
{
episodeStubs = series.Episodes.Where(e => e.Season == Convert.ToInt32(match.Groups["seasonnum"].Value) && e.Episodes.Contains(Convert.ToInt32(match.Groups["episodenum"].Value))).ToList();
}
}
}
if (episodeStubs != null && episodeStubs.Count > 0)
{
Stubs.SeriesEpisodeStub mergedEpisode = null;
if (isStub)
{
if (episodeStubs.Count == 1)
{
mergedEpisode = episodeStubs.First();
}
else
{
Stubs.SeriesEpisodeStub episode = episodeStubs.First();
mergedEpisode = new Stubs.SeriesEpisodeStub();
mergedEpisode.Actors = episode.Actors;
mergedEpisode.Aired = episode.Aired;
mergedEpisode.Credits = episode.Credits;
mergedEpisode.Director = episode.Director;
mergedEpisode.DisplayEpisode = episode.DisplayEpisode;
mergedEpisode.DisplaySeason = episode.DisplaySeason;
mergedEpisode.EpBookmark = episode.EpBookmark;
mergedEpisode.FileInfo = episode.FileInfo;
mergedEpisode.LastPlayed = episode.LastPlayed;
mergedEpisode.Mpaa = episode.Mpaa;
mergedEpisode.PlayCount = episode.PlayCount;
mergedEpisode.Premiered = episode.Premiered;
mergedEpisode.ProductionCodeNumber = episode.ProductionCodeNumber;
mergedEpisode.ResumePosition = episode.ResumePosition;
mergedEpisode.Season = episode.Season;
mergedEpisode.Sets = episode.Sets;
mergedEpisode.ShowTitle = episode.ShowTitle;
mergedEpisode.Status = episode.Status;
mergedEpisode.Studio = episode.Studio;
mergedEpisode.Tagline = episode.Tagline;
mergedEpisode.Thumb = episode.Thumb;
mergedEpisode.Top250 = episode.Top250;
mergedEpisode.Trailer = episode.Trailer;
mergedEpisode.Watched = episode.Watched;
mergedEpisode.Year = episode.Year;
mergedEpisode.Id = episode.Id;
mergedEpisode.UniqueId = episode.UniqueId;
//Merge episodes
mergedEpisode.Title = string.Join("; ", episodeStubs.OrderBy(e => e.Episodes.First()).Select(e => e.Title).ToArray());
mergedEpisode.Rating = episodeStubs.Where(e => e.Rating.HasValue).Sum(e => e.Rating.Value) / episodeStubs.Where(e => e.Rating.HasValue).Count(); // Average rating
mergedEpisode.Votes = episodeStubs.Where(e => e.Votes.HasValue).Sum(e => e.Votes.Value) / episodeStubs.Where(e => e.Votes.HasValue).Count();
mergedEpisode.Runtime = TimeSpan.FromSeconds(episodeStubs.Where(e => e.Runtime.HasValue).Sum(e => e.Runtime.Value.TotalSeconds));
mergedEpisode.Plot = string.Join("\r\n\r\n", episodeStubs.OrderBy(e => e.Episodes.First()).
Select(e => string.Format("{0,02}) {1}", e.Episodes.First(), e.Plot)).ToArray());
mergedEpisode.Outline = string.Join("\r\n\r\n", episodeStubs.OrderBy(e => e.Episodes.First()).
Select(e => string.Format("{0,02}) {1}", e.Episodes.First(), e.Outline)).ToArray());
mergedEpisode.Episodes = new HashSet <int>(episodeStubs.SelectMany(x => x.Episodes).ToList());
mergedEpisode.DvdEpisodes = new HashSet <decimal>(episodeStubs.SelectMany(x => x.DvdEpisodes).ToList());
}
IList <MultipleMediaItemAspect> providerResourceAspects;
if (MediaItemAspect.TryGetAspects(extractedAspectData, ProviderResourceAspect.Metadata, out providerResourceAspects))
{
MultipleMediaItemAspect providerResourceAspect = providerResourceAspects.First(pa => pa.GetAttributeValue <int>(ProviderResourceAspect.ATTR_TYPE) == ProviderResourceAspect.TYPE_STUB);
string mime = null;
if (mergedEpisode.FileInfo != null && mergedEpisode.FileInfo.Count > 0)
{
mime = MimeTypeDetector.GetMimeTypeFromExtension("file" + mergedEpisode.FileInfo.First().Container);
}
if (mime != null)
{
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_MIME_TYPE, mime);
}
}
MediaItemAspect.SetAttribute(extractedAspectData, MediaAspect.ATTR_TITLE, string.Format("{0} S{1:00}{2} {3}", series.ShowTitle, mergedEpisode.Season, mergedEpisode.Episodes.Select(e => "E" + e.ToString("00")), mergedEpisode.Title));
MediaItemAspect.SetAttribute(extractedAspectData, MediaAspect.ATTR_SORT_TITLE, BaseInfo.GetSortTitle(mergedEpisode.Title));
MediaItemAspect.SetAttribute(extractedAspectData, MediaAspect.ATTR_RECORDINGTIME, mergedEpisode.Premiered.HasValue ? mergedEpisode.Premiered.Value : mergedEpisode.Year.HasValue ? mergedEpisode.Year.Value : (DateTime?)null);
if (mergedEpisode.FileInfo != null && mergedEpisode.FileInfo.Count > 0)
{
extractedAspectData.Remove(VideoStreamAspect.ASPECT_ID);
extractedAspectData.Remove(VideoAudioStreamAspect.ASPECT_ID);
extractedAspectData.Remove(SubtitleAspect.ASPECT_ID);
StubParser.ParseFileInfo(extractedAspectData, mergedEpisode.FileInfo, mergedEpisode.Title);
}
}
episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, forceQuickMode, isStub, _httpClient, _settings);
episodeNfoReader.SetEpisodeStubs(new List <Stubs.SeriesEpisodeStub> {
mergedEpisode
});
}
}
}
if (series != null)
{
if (episodeNfoReader != null)
{
episodeNfoReader.SetSeriesStubs(new List <Stubs.SeriesStub> {
series
});
// Then we store the found metadata in the MediaItemAspects. If we only found metadata that is
// not (yet) supported by our MediaItemAspects, this MetadataExtractor returns false.
if (!episodeNfoReader.TryWriteMetadata(extractedAspectData))
{
_debugLogger.Warn("[#{0}]: No metadata was written into MediaItemsAspects", miNumber);
return(false);
}
}
else
{
EpisodeInfo episode = new EpisodeInfo();
if (series.Id.HasValue)
{
episode.SeriesTvdbId = series.Id.Value;
}
if (series.Premiered.HasValue)
{
episode.SeriesFirstAired = series.Premiered.Value;
}
episode.SeriesName = series.ShowTitle;
episode.SetMetadata(extractedAspectData);
}
}
}
else
{
_debugLogger.Warn("[#{0}]: No valid metadata found in series nfo-file", miNumber);
}
}
}
else if (episodeNfoReader != null)
{
//Check reimport
if (extractedAspectData.ContainsKey(ReimportAspect.ASPECT_ID))
{
EpisodeInfo reimport = new EpisodeInfo();
reimport.FromMetadata(extractedAspectData);
if (!VerifyEpisodeReimport(episodeNfoReader, reimport))
{
ServiceRegistration.Get <ILogger>().Info("NfoSeriesMetadataExtractor: Nfo episode metadata from resource '{0}' ignored because it does not match reimport {1}", mediaItemAccessor, reimport);
return(false);
}
}
// Then we store the found metadata in the MediaItemAspects. If we only found metadata that is
// not (yet) supported by our MediaItemAspects, this MetadataExtractor returns false.
if (!episodeNfoReader.TryWriteMetadata(extractedAspectData))
{
_debugLogger.Warn("[#{0}]: No metadata was written into MediaItemsAspects", miNumber);
return(false);
}
}
_debugLogger.Info("[#{0}]: Successfully finished extracting metadata", miNumber);
ServiceRegistration.Get <ILogger>().Debug("NfoSeriesMetadataExtractor: Assigned nfo episode metadata for resource '{0}'", mediaItemAccessor);
return(true);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("NfoSeriesMetadataExtractor: Exception while extracting metadata for resource '{0}'; enable debug logging for more details.", mediaItemAccessor);
_debugLogger.Error("[#{0}]: Exception while extracting metadata", e, miNumber);
return(false);
}
}
/// <summary>
/// Asynchronously tries to extract metadata for the given <param name="mediaItemAccessor"></param>
/// </summary>
/// <param name="mediaItemAccessor">Points to the resource for which we try to extract metadata</param>
/// <param name="extractedAspectData">Dictionary of <see cref="MediaItemAspect"/>s with the extracted metadata</param>
/// <param name="forceQuickMode">If <c>true</c>, nothing is downloaded from the internet</param>
/// <returns><c>true</c> if metadata was found and stored into <param name="extractedAspectData"></param>, else <c>false</c></returns>
private async Task<bool> TryExtractMetadataAsync(IResourceAccessor mediaItemAccessor, IDictionary<Guid, MediaItemAspect> extractedAspectData, bool forceQuickMode)
{
// Get a unique number for this call to TryExtractMetadataAsync. We use this to make reading the debug log easier.
// This MetadataExtractor is called in parallel for multiple MediaItems so that the respective debug log entries
// for one call are not contained one after another in debug log. We therefore prepend this number before every log entry.
var miNumber = Interlocked.Increment(ref _lastMediaItemNumber);
try
{
_debugLogger.Info("[#{0}]: Start extracting metadata for resource '{1}' (forceQuickMode: {2})", miNumber, mediaItemAccessor, forceQuickMode);
// We only extract metadata with this MetadataExtractor, if another MetadataExtractor that was applied before
// has identified this MediaItem as a video and therefore added a VideoAspect.
if (!extractedAspectData.ContainsKey(VideoAspect.ASPECT_ID))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; this resource is not a video", miNumber);
return false;
}
// This MetadataExtractor only works for MediaItems accessible by an IFileSystemResourceAccessor.
// Otherwise it is not possible to find a nfo-file in the MediaItem's directory or parent directory.
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; mediaItemAccessor is not an IFileSystemResourceAccessor", miNumber);
return false;
}
// Here we try to find an IFileSystemResourceAccessor pointing to the episode nfo-file.
// If we don't find one, we cannot extract any metadata.
IFileSystemResourceAccessor episodeNfoFsra;
if (!TryGetEpisodeNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out episodeNfoFsra))
return false;
// Now we (asynchronously) extract the metadata into a stub object.
// If no metadata was found, nothing can be stored in the MediaItemAspects.
var episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, forceQuickMode, _httpClient, _settings);
using (episodeNfoFsra)
{
if (!await episodeNfoReader.TryReadMetadataAsync(episodeNfoFsra).ConfigureAwait(false))
{
_debugLogger.Warn("[#{0}]: No valid metadata found in episode nfo-file", miNumber);
return false;
}
}
// Then we try to find an IFileSystemResourceAccessor pointing to the series nfo-file.
IFileSystemResourceAccessor seriesNfoFsra;
if (TryGetSeriesNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out seriesNfoFsra))
{
// If we found one, we (asynchronously) extract the metadata into a stub object and, if metadata was found,
// we store it into the episodeNfoReader so that the latter can store metadata from series and episode level into the MediaItemAspects.
var seriesNfoReader = new NfoSeriesReader(_debugLogger, miNumber, forceQuickMode, _httpClient, _settings);
using (seriesNfoFsra)
{
if (await seriesNfoReader.TryReadMetadataAsync(seriesNfoFsra).ConfigureAwait(false))
episodeNfoReader.SetSeriesStubs(seriesNfoReader.GetSeriesStubs());
else
_debugLogger.Warn("[#{0}]: No valid metadata found in series nfo-file", miNumber);
}
}
// Then we store the found metadata in the MediaItemAspects. If we only found metadata that is
// not (yet) supported by our MediaItemAspects, this MetadataExtractor returns false.
if (!episodeNfoReader.TryWriteMetadata(extractedAspectData))
{
_debugLogger.Warn("[#{0}]: No metadata was written into MediaItemsAspects", miNumber);
return false;
}
_debugLogger.Info("[#{0}]: Successfully finished extracting metadata", miNumber);
return true;
}
catch (Exception e)
{
ServiceRegistration.Get<ILogger>().Warn("NfoSeriesMetadataExtractor: Exception while extracting metadata for resource '{0}'; enable debug logging for more details.", mediaItemAccessor);
_debugLogger.Error("[#{0}]: Exception while extracting metadata", e, miNumber);
return false;
}
}
/// <summary>
/// Asynchronously creates an <see cref="NfoSeriesEpisodeReader"/> for the given <param name="mediaItemAccessor"></param>
/// </summary>
/// <param name="mediaItemAccessor">Points to the resource for which we try to create an NfoSeriesEpisodeReader</param>
/// <param name="season">Season number of the episode to create an NfoSeriesEpisodeReader for</param>
/// <param name="episode">Episode number of the episode to create an NfoSeriesEpisodeReader for</param>
/// <returns>An NfoSeriesEpisodeReader if an nfo file was found, else <c>null</c></returns>
protected async Task <NfoSeriesEpisodeReader> TryGetNfoSeriesEpisodeReaderAsync(IResourceAccessor mediaItemAccessor, int?season, int?episode, bool includeFanart)
{
// Get a unique number for this call to TryExtractMetadataAsync. We use this to make reading the debug log easier.
// This MetadataExtractor is called in parallel for multiple MediaItems so that the respective debug log entries
// for one call are not contained one after another in debug log. We therefore prepend this number before every log entry.
var miNumber = Interlocked.Increment(ref _lastMediaItemNumber);
try
{
_debugLogger.Info("[#{0}]: Start extracting metadata for resource '{1}'", miNumber, mediaItemAccessor);
// This MetadataExtractor only works for MediaItems accessible by an IFileSystemResourceAccessor.
// Otherwise it is not possible to find a nfo-file in the MediaItem's directory or parent directory.
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; mediaItemAccessor is not an IFileSystemResourceAccessor", miNumber);
return(null);
}
// Here we try to find an IFileSystemResourceAccessor pointing to the episode nfo-file.
// If we don't find one, we cannot extract any metadata.
IFileSystemResourceAccessor episodeNfoFsra;
NfoSeriesEpisodeReader episodeNfoReader = null;
bool episodeDetailsFound = false;
if (TryGetEpisodeNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out episodeNfoFsra))
{
episodeDetailsFound = true;
// Now we (asynchronously) extract the metadata into a stub object.
// If no metadata was found, nothing can be stored in the MediaItemAspects.
episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, false, false, _httpClient, _settings, includeFanart);
using (episodeNfoFsra)
{
if (!await episodeNfoReader.TryReadMetadataAsync(episodeNfoFsra).ConfigureAwait(false))
{
_debugLogger.Warn("[#{0}]: No valid metadata found in episode nfo-file", miNumber);
return(null);
}
}
}
// Then we try to find an IFileSystemResourceAccessor pointing to the series nfo-file.
IFileSystemResourceAccessor seriesNfoFsra;
if (TryGetSeriesNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out seriesNfoFsra))
{
// If we found one, we (asynchronously) extract the metadata into a stub object and, if metadata was found,
// we store it into the episodeNfoReader so that the latter can store metadata from series and episode level into the MediaItemAspects.
var seriesNfoReader = new NfoSeriesReader(_debugLogger, miNumber, false, !episodeDetailsFound, false, _httpClient, _settings, includeFanart);
using (seriesNfoFsra)
{
if (await seriesNfoReader.TryReadMetadataAsync(seriesNfoFsra).ConfigureAwait(false))
{
Stubs.SeriesStub series = seriesNfoReader.GetSeriesStubs().FirstOrDefault();
if (series != null)
{
if (!episodeDetailsFound && series.Episodes != null && season.HasValue && episode.HasValue)
{
Stubs.SeriesEpisodeStub episodeStub = series.Episodes.FirstOrDefault(e => e.Season == season && e.Episodes != null && e.Episodes.Contains(episode.Value));
episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, false, false, _httpClient, _settings, includeFanart);
episodeNfoReader.SetEpisodeStubs(new List <Stubs.SeriesEpisodeStub>(new[] { episodeStub }));
}
if (episodeNfoReader != null)
{
episodeNfoReader.SetSeriesStubs(new List <Stubs.SeriesStub> {
series
});
}
}
else
{
_debugLogger.Warn("[#{0}]: No valid metadata found in series nfo-file", miNumber);
}
}
}
}
if (episodeNfoReader != null)
{
return(episodeNfoReader);
}
_debugLogger.Warn("[#{0}]: No valid nfo-file found", miNumber);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("NfoSeriesMetadataExtractor: Exception while extracting metadata for resource '{0}'; enable debug logging for more details.", mediaItemAccessor);
_debugLogger.Error("[#{0}]: Exception while extracting metadata", e, miNumber);
}
return(null);
}
/// <summary>
/// Asynchronously tries to extract metadata for the given <param name="mediaItemAccessor"></param>
/// </summary>
/// <param name="mediaItemAccessor">Points to the resource for which we try to extract metadata</param>
/// <param name="extractedAspectData">Dictionary of <see cref="MediaItemAspect"/>s with the extracted metadata</param>
/// <param name="forceQuickMode">If <c>true</c>, nothing is downloaded from the internet</param>
/// <returns><c>true</c> if metadata was found and stored into <param name="extractedAspectData"></param>, else <c>false</c></returns>
private async Task <bool> TryExtractMetadataAsync(IResourceAccessor mediaItemAccessor, IDictionary <Guid, MediaItemAspect> extractedAspectData, bool forceQuickMode)
{
// Get a unique number for this call to TryExtractMetadataAsync. We use this to make reading the debug log easier.
// This MetadataExtractor is called in parallel for multiple MediaItems so that the respective debug log entries
// for one call are not contained one after another in debug log. We therefore prepend this number before every log entry.
var miNumber = Interlocked.Increment(ref _lastMediaItemNumber);
try
{
_debugLogger.Info("[#{0}]: Start extracting metadata for resource '{1}' (forceQuickMode: {2})", miNumber, mediaItemAccessor, forceQuickMode);
// We only extract metadata with this MetadataExtractor, if another MetadataExtractor that was applied before
// has identified this MediaItem as a video and therefore added a VideoAspect.
if (!extractedAspectData.ContainsKey(VideoAspect.ASPECT_ID))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; this resource is not a video", miNumber);
return(false);
}
// This MetadataExtractor only works for MediaItems accessible by an IFileSystemResourceAccessor.
// Otherwise it is not possible to find a nfo-file in the MediaItem's directory or parent directory.
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
_debugLogger.Info("[#{0}]: Cannot extract metadata; mediaItemAccessor is not an IFileSystemResourceAccessor", miNumber);
return(false);
}
// Here we try to find an IFileSystemResourceAccessor pointing to the episode nfo-file.
// If we don't find one, we cannot extract any metadata.
IFileSystemResourceAccessor episodeNfoFsra;
if (!TryGetEpisodeNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out episodeNfoFsra))
{
return(false);
}
// Now we (asynchronously) extract the metadata into a stub object.
// If no metadata was found, nothing can be stored in the MediaItemAspects.
var episodeNfoReader = new NfoSeriesEpisodeReader(_debugLogger, miNumber, forceQuickMode, _httpClient, _settings);
using (episodeNfoFsra)
{
if (!await episodeNfoReader.TryReadMetadataAsync(episodeNfoFsra).ConfigureAwait(false))
{
_debugLogger.Warn("[#{0}]: No valid metadata found in episode nfo-file", miNumber);
return(false);
}
}
// Then we try to find an IFileSystemResourceAccessor pointing to the series nfo-file.
IFileSystemResourceAccessor seriesNfoFsra;
if (TryGetSeriesNfoSResourceAccessor(miNumber, mediaItemAccessor as IFileSystemResourceAccessor, out seriesNfoFsra))
{
// If we found one, we (asynchronously) extract the metadata into a stub object and, if metadata was found,
// we store it into the episodeNfoReader so that the latter can store metadata from series and episode level into the MediaItemAspects.
var seriesNfoReader = new NfoSeriesReader(_debugLogger, miNumber, forceQuickMode, _httpClient, _settings);
using (seriesNfoFsra)
{
if (await seriesNfoReader.TryReadMetadataAsync(seriesNfoFsra).ConfigureAwait(false))
{
episodeNfoReader.SetSeriesStubs(seriesNfoReader.GetSeriesStubs());
}
else
{
_debugLogger.Warn("[#{0}]: No valid metadata found in series nfo-file", miNumber);
}
}
}
// Then we store the found metadata in the MediaItemAspects. If we only found metadata that is
// not (yet) supported by our MediaItemAspects, this MetadataExtractor returns false.
if (!episodeNfoReader.TryWriteMetadata(extractedAspectData))
{
_debugLogger.Warn("[#{0}]: No metadata was written into MediaItemsAspects", miNumber);
return(false);
}
_debugLogger.Info("[#{0}]: Successfully finished extracting metadata", miNumber);
return(true);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("NfoSeriesMetadataExtractor: Exception while extracting metadata for resource '{0}'; enable debug logging for more details.", mediaItemAccessor);
_debugLogger.Error("[#{0}]: Exception while extracting metadata", e, miNumber);
return(false);
}
}