/// <summary>
/// Asynchronously tries to extract series 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="importOnly">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> TryExtractSeriesMetadataAsync(IResourceAccessor mediaItemAccessor, IDictionary <Guid, IList <MediaItemAspect> > extractedAspectData, bool importOnly, 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}' (importOnly: {2}, forceQuickMode: {3})", miNumber, mediaItemAccessor, importOnly, 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);
}
// 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, false, false, _httpClient, _settings);
using (seriesNfoFsra)
{
if (await seriesNfoReader.TryReadMetadataAsync(seriesNfoFsra).ConfigureAwait(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 (!seriesNfoReader.TryWriteMetadata(extractedAspectData))
{
_debugLogger.Warn("[#{0}]: No metadata was written into series MediaItemsAspects", miNumber);
return(false);
}
else
{
_debugLogger.Warn("[#{0}]: No valid metadata found in series nfo-file", miNumber);
}
}
}
}
_debugLogger.Info("[#{0}]: Successfully finished extracting series metadata", miNumber);
ServiceRegistration.Get <ILogger>().Debug("NfoSeriesMetadataExtractor: Assigned nfo series metadata for resource '{0}'", mediaItemAccessor);
return(true);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Warn("NfoSeriesMetadataExtractor: Exception while extracting series 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 series 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 MediaItemAspect to update with metadata</param>
/// <returns><c>true</c> if metadata was found and stored into the <paramref name="extractedAspectData"/>, else <c>false</c></returns>
protected async Task <bool> TryExtractSeriesMetadataAsync(IResourceAccessor mediaItemAccessor, IDictionary <Guid, IList <MediaItemAspect> > extractedAspectData, SeriesInfo reimport)
{
NfoSeriesReader seriesNfoReader = await TryGetNfoSeriesReaderAsync(mediaItemAccessor).ConfigureAwait(false);
if (seriesNfoReader != null)
{
if (reimport != null && !VerifySeriesReimport(seriesNfoReader, reimport))
{
return(false);
}
return(seriesNfoReader.TryWriteMetadata(extractedAspectData));
}
return(false);
}
/// <summary>
/// Verifies if the series being reimported matches the series in the nfo file
/// </summary>
/// <param name="reader">Reader used read the series information from the nfo file</param>
/// <param name="reimport">The series being reimported</param>
/// <returns>Result of the verification</returns>
protected bool VerifySeriesReimport(NfoSeriesReader reader, SeriesInfo reimport)
{
if (reimport == null)
{
return(true);
}
IDictionary <Guid, IList <MediaItemAspect> > aspectData = new Dictionary <Guid, IList <MediaItemAspect> >();
if (reader.TryWriteMetadata(aspectData))
{
SeriesInfo info = new SeriesInfo();
info.FromMetadata(aspectData);
if (reimport.Equals(info))
{
return(true);
}
}
return(false);
}