285 lines
10 KiB
C#
285 lines
10 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.IO;
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using System.Linq;
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using Jellyfin.Data.Enums;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.TV;
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using MediaBrowser.Controller.Library;
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using Microsoft.Extensions.Logging;
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namespace ConfusedPolarBear.Plugin.IntroSkipper;
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/// <summary>
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/// Manages enqueuing library items for analysis.
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/// </summary>
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public class QueueManager
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{
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private ILibraryManager _libraryManager;
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private ILogger<QueueManager> _logger;
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private double analysisPercent;
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private List<string> selectedLibraries;
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private Dictionary<Guid, List<QueuedEpisode>> _queuedEpisodes;
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/// <summary>
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/// Initializes a new instance of the <see cref="QueueManager"/> class.
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/// </summary>
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/// <param name="logger">Logger.</param>
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/// <param name="libraryManager">Library manager.</param>
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public QueueManager(ILogger<QueueManager> logger, ILibraryManager libraryManager)
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{
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_logger = logger;
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_libraryManager = libraryManager;
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selectedLibraries = new();
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_queuedEpisodes = new();
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}
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/// <summary>
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/// Gets all media items on the server.
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/// </summary>
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/// <returns>Queued media items.</returns>
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public ReadOnlyDictionary<Guid, List<QueuedEpisode>> GetMediaItems()
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{
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Plugin.Instance!.TotalQueued = 0;
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LoadAnalysisSettings();
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// For all selected libraries, enqueue all contained episodes.
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foreach (var folder in _libraryManager.GetVirtualFolders())
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{
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// If libraries have been selected for analysis, ensure this library was selected.
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if (selectedLibraries.Count > 0 && !selectedLibraries.Contains(folder.Name))
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{
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_logger.LogDebug("Not analyzing library \"{Name}\": not selected by user", folder.Name);
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continue;
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}
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_logger.LogInformation("Running enqueue of items in library {Name}", folder.Name);
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try
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{
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foreach (var location in folder.Locations)
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{
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var item = _libraryManager.FindByPath(location, true);
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if (item is null)
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{
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_logger.LogWarning("Unable to find linked item at path {0}", location);
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continue;
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}
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QueueLibraryContents(item.Id);
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}
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}
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catch (Exception ex)
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{
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_logger.LogError("Failed to enqueue items from library {Name}: {Exception}", folder.Name, ex);
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}
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}
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Plugin.Instance.TotalSeasons = _queuedEpisodes.Count;
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Plugin.Instance.QueuedMediaItems.Clear();
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foreach (var kvp in _queuedEpisodes)
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{
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Plugin.Instance.QueuedMediaItems.TryAdd(kvp.Key, kvp.Value);
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}
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return new(_queuedEpisodes);
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}
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/// <summary>
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/// Loads the list of libraries which have been selected for analysis and the minimum intro duration.
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/// Settings which have been modified from the defaults are logged.
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/// </summary>
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private void LoadAnalysisSettings()
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{
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var config = Plugin.Instance!.Configuration;
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// Store the analysis percent
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analysisPercent = Convert.ToDouble(config.AnalysisPercent) / 100;
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// Get the list of library names which have been selected for analysis, ignoring whitespace and empty entries.
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selectedLibraries = config.SelectedLibraries
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.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
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.ToList();
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// If any libraries have been selected for analysis, log their names.
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if (selectedLibraries.Count > 0)
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{
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_logger.LogInformation("Limiting analysis to the following libraries: {Selected}", selectedLibraries);
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}
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else
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{
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_logger.LogDebug("Not limiting analysis by library name");
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}
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// If analysis settings have been changed from the default, log the modified settings.
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if (config.AnalysisLengthLimit != 10 || config.AnalysisPercent != 25 || config.MinimumIntroDuration != 15)
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{
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_logger.LogInformation(
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"Analysis settings have been changed to: {Percent}% / {Minutes}m and a minimum of {Minimum}s",
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config.AnalysisPercent,
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config.AnalysisLengthLimit,
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config.MinimumIntroDuration);
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}
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}
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private void QueueLibraryContents(Guid id)
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{
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_logger.LogDebug("Constructing anonymous internal query");
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var query = new InternalItemsQuery
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{
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// Order by series name, season, and then episode number so that status updates are logged in order
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ParentId = id,
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OrderBy = new[] { (ItemSortBy.SeriesSortName, SortOrder.Ascending), (ItemSortBy.ParentIndexNumber, SortOrder.Ascending), (ItemSortBy.IndexNumber, SortOrder.Ascending), },
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IncludeItemTypes = [BaseItemKind.Episode],
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Recursive = true,
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IsVirtualItem = false
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};
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var items = _libraryManager.GetItemList(query, false);
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if (items is null)
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{
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_logger.LogError("Library query result is null");
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return;
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}
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// Queue all episodes on the server for fingerprinting.
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_logger.LogDebug("Iterating through library items");
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foreach (var item in items)
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{
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if (item is not Episode episode)
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{
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_logger.LogDebug("Item {Name} is not an episode", item.Name);
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continue;
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}
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QueueEpisode(episode);
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}
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_logger.LogDebug("Queued {Count} episodes", items.Count);
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}
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private void QueueEpisode(Episode episode)
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{
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var pluginInstance = Plugin.Instance ?? throw new InvalidOperationException("Plugin instance was null");
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if (string.IsNullOrEmpty(episode.Path))
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{
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_logger.LogWarning(
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"Not queuing episode \"{Name}\" from series \"{Series}\" ({Id}) as no path was provided by Jellyfin",
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episode.Name,
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episode.SeriesName,
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episode.Id);
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return;
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}
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// Allocate a new list for each new season
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if (!_queuedEpisodes.TryGetValue(episode.SeasonId, out var seasonEpisodes))
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{
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seasonEpisodes = new List<QueuedEpisode>();
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_queuedEpisodes[episode.SeasonId] = seasonEpisodes;
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}
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if (seasonEpisodes.Any(e => e.EpisodeId == episode.Id))
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{
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_logger.LogDebug(
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"\"{Name}\" from series \"{Series}\" ({Id}) is already queued",
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episode.Name,
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episode.SeriesName,
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episode.Id);
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return;
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}
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// Limit analysis to the first X% of the episode and at most Y minutes.
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// X and Y default to 25% and 10 minutes.
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var duration = TimeSpan.FromTicks(episode.RunTimeTicks ?? 0).TotalSeconds;
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var fingerprintDuration = Math.Min(
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duration >= 5 * 60 ? duration * analysisPercent : duration,
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60 * pluginInstance.Configuration.AnalysisLengthLimit);
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// Queue the episode for analysis
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var maxCreditsDuration = pluginInstance.Configuration.MaximumCreditsDuration;
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_queuedEpisodes[episode.SeasonId].Add(new QueuedEpisode
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{
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SeriesName = episode.SeriesName,
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SeasonNumber = episode.AiredSeasonNumber ?? 0,
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EpisodeId = episode.Id,
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Name = episode.Name,
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IsAnime = episode.GetInheritedTags().Contains("anime", StringComparer.OrdinalIgnoreCase),
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Path = episode.Path,
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Duration = Convert.ToInt32(duration),
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IntroFingerprintEnd = Convert.ToInt32(fingerprintDuration),
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CreditsFingerprintStart = Convert.ToInt32(duration - maxCreditsDuration),
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});
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pluginInstance.TotalQueued++;
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}
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/// <summary>
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/// Verify that a collection of queued media items still exist in Jellyfin and in storage.
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/// This is done to ensure that we don't analyze items that were deleted between the call to GetMediaItems() and popping them from the queue.
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/// </summary>
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/// <param name="candidates">Queued media items.</param>
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/// <param name="modes">Analysis mode.</param>
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/// <returns>Media items that have been verified to exist in Jellyfin and in storage.</returns>
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public (ReadOnlyCollection<QueuedEpisode> VerifiedItems, ReadOnlyCollection<AnalysisMode> RequiredModes)
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VerifyQueue(ReadOnlyCollection<QueuedEpisode> candidates, ReadOnlyCollection<AnalysisMode> modes)
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{
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var verified = new List<QueuedEpisode>();
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var reqModes = new HashSet<AnalysisMode>();
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foreach (var candidate in candidates)
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{
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try
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{
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var path = Plugin.Instance!.GetItemPath(candidate.EpisodeId);
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if (!File.Exists(path))
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{
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continue;
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}
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verified.Add(candidate);
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foreach (var mode in modes)
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{
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if (candidate.State.IsAnalyzed(mode) || candidate.State.IsBlacklisted(mode))
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{
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continue;
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}
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bool isAnalyzed = mode == AnalysisMode.Introduction
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? Plugin.Instance!.Intros.ContainsKey(candidate.EpisodeId)
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: Plugin.Instance!.Credits.ContainsKey(candidate.EpisodeId);
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if (isAnalyzed)
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{
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candidate.State.SetAnalyzed(mode, true);
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}
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else
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{
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reqModes.Add(mode);
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}
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}
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}
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catch (Exception ex)
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{
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_logger.LogDebug(
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"Skipping analysis of {Name} ({Id}): {Exception}",
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candidate.Name,
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candidate.EpisodeId,
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ex);
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}
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}
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return (verified.AsReadOnly(), reqModes.ToList().AsReadOnly());
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}
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}
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