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250 lines
9.2 KiB
250 lines
9.2 KiB
using NLog;
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using NzbDrone.Core.Configuration;
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using NzbDrone.Core.Datastore;
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using NzbDrone.Core.MediaFiles;
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using NzbDrone.Core.MediaFiles.Events;
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using NzbDrone.Core.Messaging.Events;
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using NzbDrone.Core.Music.Events;
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using NzbDrone.Core.Parser;
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using NzbDrone.Common.Extensions;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace NzbDrone.Core.Music
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{
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public interface ITrackService
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{
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Track GetTrack(int id);
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List<Track> GetTracks(IEnumerable<int> ids);
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Track FindTrack(int artistId, int albumId, int mediumNumber, int trackNumber);
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Track FindTrackByTitle(int artistId, int albumId, int mediumNumber, int trackNumber, string releaseTitle);
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Track FindTrackByTitleInexact(int artistId, int albumId, int mediumNumber, int trackNumber, string releaseTitle);
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List<Track> GetTracksByArtist(int artistId);
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List<Track> GetTracksByAlbum(int albumId);
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//List<Track> GetTracksByAlbumTitle(string artistId, string albumTitle);
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List<Track> TracksWithFiles(int artistId);
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//PagingSpec<Track> TracksWithoutFiles(PagingSpec<Track> pagingSpec);
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List<Track> GetTracksByFileId(int trackFileId);
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void UpdateTrack(Track track);
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void SetTrackMonitored(int trackId, bool monitored);
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void UpdateTracks(List<Track> tracks);
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void InsertMany(List<Track> tracks);
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void UpdateMany(List<Track> tracks);
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void DeleteMany(List<Track> tracks);
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void SetTrackMonitoredByAlbum(int artistId, int albumId, bool monitored);
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}
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public class TrackService : ITrackService,
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IHandleAsync<ArtistDeletedEvent>,
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IHandleAsync<AlbumDeletedEvent>,
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IHandle<TrackFileDeletedEvent>,
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IHandle<TrackFileAddedEvent>
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{
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private readonly ITrackRepository _trackRepository;
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private readonly IConfigService _configService;
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private readonly Logger _logger;
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public TrackService(ITrackRepository trackRepository, IConfigService configService, Logger logger)
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{
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_trackRepository = trackRepository;
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_configService = configService;
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_logger = logger;
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}
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public Track GetTrack(int id)
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{
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return _trackRepository.Get(id);
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}
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public List<Track> GetTracks(IEnumerable<int> ids)
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{
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return _trackRepository.Get(ids).ToList();
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}
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public Track FindTrack(int artistId, int albumId, int mediumNumber, int trackNumber)
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{
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return _trackRepository.Find(artistId, albumId, mediumNumber, trackNumber);
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}
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public List<Track> GetTracksByArtist(int artistId)
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{
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_logger.Debug("Getting Tracks for ArtistId {0}", artistId);
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return _trackRepository.GetTracks(artistId).ToList();
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}
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public List<Track> GetTracksByAlbum(int albumId)
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{
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return _trackRepository.GetTracksByAlbum(albumId);
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}
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public Track FindTrackByTitle(int artistId, int albumId, int mediumNumber, int trackNumber, string releaseTitle)
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{
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// TODO: can replace this search mechanism with something smarter/faster/better
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var normalizedReleaseTitle = releaseTitle.NormalizeTrackTitle().Replace(".", " ");
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var tracks = _trackRepository.GetTracksByMedium(albumId, mediumNumber);
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var matches = tracks.Where(t => (trackNumber == 0 || t.AbsoluteTrackNumber == trackNumber)
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&& t.Title.Length > 0
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&& (normalizedReleaseTitle.Contains(t.Title.NormalizeTrackTitle())
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|| t.Title.NormalizeTrackTitle().Contains(normalizedReleaseTitle)));
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return matches.Count() > 1 ? null : matches.SingleOrDefault();
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}
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public Track FindTrackByTitleInexact(int artistId, int albumId, int mediumNumber, int trackNumber, string title)
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{
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var normalizedTitle = title.NormalizeTrackTitle().Replace(".", " ");
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var tracks = _trackRepository.GetTracksByMedium(albumId, mediumNumber);
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Func< Func<Track, string, double>, string, Tuple<Func<Track, string, double>, string>> tc = Tuple.Create;
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var scoringFunctions = new List<Tuple<Func<Track, string, double>, string>> {
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tc((a, t) => a.Title.NormalizeTrackTitle().FuzzyMatch(t), normalizedTitle),
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tc((a, t) => a.Title.NormalizeTrackTitle().FuzzyContains(t), normalizedTitle),
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tc((a, t) => t.FuzzyContains(a.Title.NormalizeTrackTitle()), normalizedTitle)
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};
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foreach (var func in scoringFunctions)
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{
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var track = FindByStringInexact(tracks, func.Item1, func.Item2, trackNumber);
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if (track != null)
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{
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return track;
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}
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}
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return null;
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}
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private Track FindByStringInexact(List<Track> tracks, Func<Track, string, double> scoreFunction, string title, int trackNumber)
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{
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const double fuzzThreshold = 0.7;
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const double fuzzGap = 0.2;
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var sortedTracks = tracks.Select(s => new
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{
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MatchProb = scoreFunction(s, title),
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Track = s
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})
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.ToList()
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.OrderByDescending(s => s.MatchProb)
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.ToList();
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if (!sortedTracks.Any())
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{
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return null;
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}
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_logger.Trace("\nFuzzy track match on '{0:D2} - {1}':\n{2}",
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trackNumber,
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title,
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string.Join("\n", sortedTracks.Select(x => $"{x.Track.AbsoluteTrackNumber:D2} - {x.Track.Title}: {x.MatchProb}")));
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if (sortedTracks[0].MatchProb > fuzzThreshold
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&& (sortedTracks.Count == 1 || sortedTracks[0].MatchProb - sortedTracks[1].MatchProb > fuzzGap)
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&& (trackNumber == 0
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|| sortedTracks[0].Track.AbsoluteTrackNumber == trackNumber
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|| sortedTracks[0].Track.AbsoluteTrackNumber + tracks.Count(t => t.MediumNumber < sortedTracks[0].Track.MediumNumber) == trackNumber))
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{
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return sortedTracks[0].Track;
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}
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return null;
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}
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public List<Track> TracksWithFiles(int artistId)
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{
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return _trackRepository.TracksWithFiles(artistId);
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}
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public PagingSpec<Track> TracksWithoutFiles(PagingSpec<Track> pagingSpec)
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{
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var episodeResult = _trackRepository.TracksWithoutFiles(pagingSpec);
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return episodeResult;
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}
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public List<Track> GetTracksByFileId(int trackFileId)
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{
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return _trackRepository.GetTracksByFileId(trackFileId);
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}
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public void UpdateTrack(Track track)
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{
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_trackRepository.Update(track);
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}
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public void SetTrackMonitored(int trackId, bool monitored)
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{
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var track = _trackRepository.Get(trackId);
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_trackRepository.SetMonitoredFlat(track, monitored);
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_logger.Debug("Monitored flag for Track:{0} was set to {1}", trackId, monitored);
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}
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public void SetTrackMonitoredByAlbum(int artistId, int albumId, bool monitored)
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{
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_trackRepository.SetMonitoredByAlbum(artistId, albumId, monitored);
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}
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public void UpdateTracks(List<Track> tracks)
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{
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_trackRepository.UpdateMany(tracks);
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}
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public void InsertMany(List<Track> tracks)
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{
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_trackRepository.InsertMany(tracks);
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}
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public void UpdateMany(List<Track> tracks)
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{
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_trackRepository.UpdateMany(tracks);
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}
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public void DeleteMany(List<Track> tracks)
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{
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_trackRepository.DeleteMany(tracks);
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}
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public void HandleAsync(ArtistDeletedEvent message)
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{
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var tracks = GetTracksByArtist(message.Artist.Id);
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_trackRepository.DeleteMany(tracks);
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}
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public void HandleAsync(AlbumDeletedEvent message)
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{
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var tracks = GetTracksByAlbum(message.Album.Id);
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_trackRepository.DeleteMany(tracks);
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}
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public void Handle(TrackFileDeletedEvent message)
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{
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foreach (var track in GetTracksByFileId(message.TrackFile.Id))
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{
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_logger.Debug("Detaching track {0} from file.", track.Id);
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track.TrackFileId = 0;
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if (message.Reason != DeleteMediaFileReason.Upgrade && _configService.AutoUnmonitorPreviouslyDownloadedTracks)
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{
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track.Monitored = false;
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}
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UpdateTrack(track);
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}
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}
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public void Handle(TrackFileAddedEvent message)
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{
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foreach (var track in message.TrackFile.Tracks.Value)
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{
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_trackRepository.SetFileId(track.Id, message.TrackFile.Id);
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_logger.Debug("Linking [{0}] > [{1}]", message.TrackFile.RelativePath, track);
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}
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}
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}
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}
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