C# Series.GetRecursiveChildren方法代码示例

        private async Task<bool> AddDummySeasonFolders(Series series, CancellationToken cancellationToken)
        {
            var episodesInSeriesFolder = series.GetRecursiveChildren()
                .OfType<Episode>()
                .Where(i => !i.IsInSeasonFolder)
                .ToList();

            var hasChanges = false;

            // Loop through the unique season numbers
            foreach (var seasonNumber in episodesInSeriesFolder.Select(i => i.ParentIndexNumber ?? -1)
                .Where(i => i >= 0)
                .Distinct()
                .ToList())
            {
                var hasSeason = series.Children.OfType<Season>()
                    .Any(i => i.IndexNumber.HasValue && i.IndexNumber.Value == seasonNumber);

                if (!hasSeason)
                {
                    await AddSeason(series, seasonNumber, cancellationToken).ConfigureAwait(false);

                    hasChanges = true;
                }
            }

            // Unknown season - create a dummy season to put these under
            if (episodesInSeriesFolder.Any(i => !i.ParentIndexNumber.HasValue))
            {
                var hasSeason = series.Children.OfType<Season>()
                    .Any(i => !i.IndexNumber.HasValue);

                if (!hasSeason)
                {
                    await AddSeason(series, null, cancellationToken).ConfigureAwait(false);

                    hasChanges = true;
                }
            }

            return hasChanges;
        }

        /// <summary>
        /// Gets the season folder path.
        /// </summary>
        /// <param name="series">The series.</param>
        /// <param name="seasonNumber">The season number.</param>
        /// <param name="options">The options.</param>
        /// <returns>System.String.</returns>
        private string GetSeasonFolderPath(Series series, int seasonNumber, TvFileOrganizationOptions options)
        {
            // If there's already a season folder, use that
            var season = series
                .GetRecursiveChildren(i => i is Season && i.LocationType == LocationType.FileSystem && i.IndexNumber.HasValue && i.IndexNumber.Value == seasonNumber)
                .FirstOrDefault();

            if (season != null)
            {
                return season.Path;
            }

            var path = series.Path;

            if (series.ContainsEpisodesWithoutSeasonFolders)
            {
                return path;
            }

            if (seasonNumber == 0)
            {
                return Path.Combine(path, _fileSystem.GetValidFilename(options.SeasonZeroFolderName));
            }

            var seasonFolderName = options.SeasonFolderPattern
                .Replace("%s", seasonNumber.ToString(_usCulture))
                .Replace("%0s", seasonNumber.ToString("00", _usCulture))
                .Replace("%00s", seasonNumber.ToString("000", _usCulture));

            return Path.Combine(path, _fileSystem.GetValidFilename(seasonFolderName));
        }

        private List<string> GetOtherDuplicatePaths(string targetPath,
            Series series,
            int? seasonNumber,
            int? episodeNumber,
            int? endingEpisodeNumber)
        {
            // TODO: Support date-naming?
            if (!seasonNumber.HasValue || !episodeNumber.HasValue)
            {
                return new List<string>();
            }

            var episodePaths = series.GetRecursiveChildren()
                .OfType<Episode>()
                .Where(i =>
                {
                    var locationType = i.LocationType;

                    // Must be file system based and match exactly
                    if (locationType != LocationType.Remote &&
                        locationType != LocationType.Virtual &&
                        i.ParentIndexNumber.HasValue &&
                        i.ParentIndexNumber.Value == seasonNumber &&
                        i.IndexNumber.HasValue &&
                        i.IndexNumber.Value == episodeNumber)
                    {

                        if (endingEpisodeNumber.HasValue || i.IndexNumberEnd.HasValue)
                        {
                            return endingEpisodeNumber.HasValue && i.IndexNumberEnd.HasValue &&
                                   endingEpisodeNumber.Value == i.IndexNumberEnd.Value;
                        }

                        return true;
                    }

                    return false;
                })
                .Select(i => i.Path)
                .ToList();

            var folder = Path.GetDirectoryName(targetPath);
            var targetFileNameWithoutExtension = _fileSystem.GetFileNameWithoutExtension(targetPath);

            try
            {
                var filesOfOtherExtensions = _fileSystem.GetFilePaths(folder)
                    .Where(i => _libraryManager.IsVideoFile(i) && string.Equals(_fileSystem.GetFileNameWithoutExtension(i), targetFileNameWithoutExtension, StringComparison.OrdinalIgnoreCase));

                episodePaths.AddRange(filesOfOtherExtensions);
            }
            catch (DirectoryNotFoundException)
            {
                // No big deal. Maybe the season folder doesn't already exist.
            }

            return episodePaths.Where(i => !string.Equals(i, targetPath, StringComparison.OrdinalIgnoreCase))
                .Distinct(StringComparer.OrdinalIgnoreCase)
                .ToList();
        }

        private async Task<bool> RemoveObsoleteSeasons(Series series)
        {
            var existingSeasons = series.Children.OfType<Season>().ToList();

            var physicalSeasons = existingSeasons
                .Where(i => i.LocationType != LocationType.Virtual)
                .ToList();

            var virtualSeasons = existingSeasons
                .Where(i => i.LocationType == LocationType.Virtual)
                .ToList();

            var episodes = series.GetRecursiveChildren().OfType<Episode>().ToList();

            var seasonsToRemove = virtualSeasons
                .Where(i =>
                {
                    if (i.IndexNumber.HasValue)
                    {
                        var seasonNumber = i.IndexNumber.Value;

                        // If there's a physical season with the same number, delete it
                        if (physicalSeasons.Any(p => p.IndexNumber.HasValue && (p.IndexNumber.Value == seasonNumber)))
                        {
                            return true;
                        }

                        // If there are no episodes with this season number, delete it
                        if (episodes.All(e => !e.ParentIndexNumber.HasValue || e.ParentIndexNumber.Value != seasonNumber))
                        {
                            return true;
                        }

                        return false;
                    }

                    // Season does not have a number
                    // Remove if there are no episodes directly in series without a season number
                    return episodes.All(s => s.ParentIndexNumber.HasValue || !s.IsInSeasonFolder);
                })
                .ToList();

            var hasChanges = false;

            foreach (var seasonToRemove in seasonsToRemove)
            {
                _logger.Info("Removing virtual season {0} {1}", seasonToRemove.Series.Name, seasonToRemove.IndexNumber);

                await _libraryManager.DeleteItem(seasonToRemove).ConfigureAwait(false);

                hasChanges = true;
            }

            return hasChanges;
        }