mirror of
https://github.com/jellyfin/jellyfin.git
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268 lines
10 KiB
C#
268 lines
10 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using Microsoft.Extensions.Caching.Memory;
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using TvDbSharper;
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using TvDbSharper.Dto;
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namespace MediaBrowser.Providers.TV.TheTVDB
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{
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// TODO add to DI once Bond's PR is merged
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public sealed class TvDbClientManager
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{
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private static volatile TvDbClientManager instance;
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// TODO add to DI once Bond's PR is merged
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private readonly SemaphoreSlim _cacheWriteLock = new SemaphoreSlim(1, 1);
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private static MemoryCache _cache;
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private static readonly object syncRoot = new object();
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private static TvDbClient tvDbClient;
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private static DateTime tokenCreatedAt;
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private const string DefaultLanguage = "en";
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private TvDbClientManager()
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{
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tvDbClient = new TvDbClient();
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tvDbClient.Authentication.AuthenticateAsync(TVUtils.TvdbApiKey);
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tokenCreatedAt = DateTime.Now;
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}
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public static TvDbClientManager Instance
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{
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get
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{
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if (instance != null)
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{
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return instance;
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}
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lock (syncRoot)
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{
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if (instance == null)
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{
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instance = new TvDbClientManager();
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_cache = new MemoryCache(new MemoryCacheOptions());
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}
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}
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return instance;
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}
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}
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public TvDbClient TvDbClient
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{
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get
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{
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// Refresh if necessary
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if (tokenCreatedAt > DateTime.Now.Subtract(TimeSpan.FromHours(20)))
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{
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try
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{
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tvDbClient.Authentication.RefreshTokenAsync();
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}
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catch
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{
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tvDbClient.Authentication.AuthenticateAsync(TVUtils.TvdbApiKey);
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}
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tokenCreatedAt = DateTime.Now;
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}
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return tvDbClient;
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}
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}
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public Task<TvDbResponse<SeriesSearchResult[]>> GetSeriesByNameAsync(string name, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("series" + name, language,() => TvDbClient.Search.SearchSeriesByNameAsync(name, cancellationToken));
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}
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public Task<TvDbResponse<Series>> GetSeriesByIdAsync(int tvdbId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("series" + tvdbId, language,() => TvDbClient.Series.GetAsync(tvdbId, cancellationToken));
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}
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public Task<TvDbResponse<EpisodeRecord>> GetEpisodesAsync(int episodeTvdbId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("episode" + episodeTvdbId, language,() => TvDbClient.Episodes.GetAsync(episodeTvdbId, cancellationToken));
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}
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public async Task<List<EpisodeRecord>> GetAllEpisodesAsync(int tvdbId, string language,
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CancellationToken cancellationToken)
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{
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// Traverse all episode pages and join them together
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var episodes = new List<EpisodeRecord>();
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var episodePage = await GetEpisodesPageAsync(tvdbId, new EpisodeQuery(), language, cancellationToken);
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episodes.AddRange(episodePage.Data);
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if (!episodePage.Links.Next.HasValue || !episodePage.Links.Last.HasValue)
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{
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return episodes;
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}
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int next = episodePage.Links.Next.Value;
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int last = episodePage.Links.Last.Value;
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for (var page = next; page <= last; ++page)
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{
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episodePage = await GetEpisodesPageAsync(tvdbId, page, new EpisodeQuery(), language, cancellationToken);
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episodes.AddRange(episodePage.Data);
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}
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return episodes;
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}
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public Task<TvDbResponse<SeriesSearchResult[]>> GetSeriesByImdbIdAsync(string imdbId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("series" + imdbId, language,() => TvDbClient.Search.SearchSeriesByImdbIdAsync(imdbId, cancellationToken));
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}
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public Task<TvDbResponse<SeriesSearchResult[]>> GetSeriesByZap2ItIdAsync(string zap2ItId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("series" + zap2ItId, language,() => TvDbClient.Search.SearchSeriesByZap2ItIdAsync(zap2ItId, cancellationToken));
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}
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public Task<TvDbResponse<Actor[]>> GetActorsAsync(int tvdbId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("actors" + tvdbId, language,() => TvDbClient.Series.GetActorsAsync(tvdbId, cancellationToken));
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}
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public Task<TvDbResponse<Image[]>> GetImagesAsync(int tvdbId, ImagesQuery imageQuery, string language,
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CancellationToken cancellationToken)
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{
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var cacheKey = "images" + tvdbId + "keytype" + imageQuery.KeyType + "subkey" + imageQuery.SubKey;
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return TryGetValue(cacheKey, language,() => TvDbClient.Series.GetImagesAsync(tvdbId, imageQuery, cancellationToken));
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}
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public Task<TvDbResponse<Language[]>> GetLanguagesAsync(CancellationToken cancellationToken)
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{
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return TryGetValue("languages", null,() => TvDbClient.Languages.GetAllAsync(cancellationToken));
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}
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public Task<TvDbResponse<EpisodesSummary>> GetSeriesEpisodeSummaryAsync(int tvdbId, string language,
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CancellationToken cancellationToken)
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{
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return TryGetValue("seriesepisodesummary" + tvdbId, language,
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() => TvDbClient.Series.GetEpisodesSummaryAsync(tvdbId, cancellationToken));
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}
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public Task<TvDbResponse<EpisodeRecord[]>> GetEpisodesPageAsync(int tvdbId, int page, EpisodeQuery episodeQuery,
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string language, CancellationToken cancellationToken)
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{
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// Not quite as dynamic as it could be
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var cacheKey = "episodespage" + tvdbId + "page" + page;
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if (episodeQuery.AiredSeason.HasValue)
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{
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cacheKey += "airedseason" + episodeQuery.AiredSeason.Value;
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}
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if (episodeQuery.AiredEpisode.HasValue)
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{
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cacheKey += "airedepisode" + episodeQuery.AiredEpisode.Value;
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}
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return TryGetValue(cacheKey, language,
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() => TvDbClient.Series.GetEpisodesAsync(tvdbId, page, episodeQuery, cancellationToken));
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}
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public Task<string> GetEpisodeTvdbId(EpisodeInfo searchInfo, string language,
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CancellationToken cancellationToken)
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{
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searchInfo.SeriesProviderIds.TryGetValue(MetadataProviders.Tvdb.ToString(),
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out var seriesTvdbId);
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var episodeQuery = new EpisodeQuery();
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// Prefer SxE over premiere date as it is more robust
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if (searchInfo.IndexNumber.HasValue && searchInfo.ParentIndexNumber.HasValue)
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{
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episodeQuery.AiredEpisode = searchInfo.IndexNumber.Value;
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episodeQuery.AiredSeason = searchInfo.ParentIndexNumber.Value;
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}
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else if (searchInfo.PremiereDate.HasValue)
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{
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// tvdb expects yyyy-mm-dd format
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episodeQuery.FirstAired = searchInfo.PremiereDate.Value.ToString("yyyy-MM-dd");
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}
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return GetEpisodeTvdbId(Convert.ToInt32(seriesTvdbId), episodeQuery, cancellationToken, language);
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}
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public async Task<string> GetEpisodeTvdbId(int seriesTvdbId, EpisodeQuery episodeQuery,
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CancellationToken cancellationToken, string language)
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{
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var episodePage = await GetEpisodesPageAsync(Convert.ToInt32(seriesTvdbId), episodeQuery, language, cancellationToken);
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return episodePage.Data.FirstOrDefault()?.Id.ToString();
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}
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public Task<TvDbResponse<EpisodeRecord[]>> GetEpisodesPageAsync(int tvdbId, EpisodeQuery episodeQuery,
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string language, CancellationToken cancellationToken)
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{
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return GetEpisodesPageAsync(tvdbId, 1, episodeQuery, language, cancellationToken);
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}
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private async Task<T> TryGetValue<T>(string key, string language, Func<Task<T>> resultFactory)
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{
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if (_cache.TryGetValue(key, out T cachedValue))
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{
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return cachedValue;
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}
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await _cacheWriteLock.WaitAsync().ConfigureAwait(false);
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try
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{
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if (_cache.TryGetValue(key, out cachedValue))
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{
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return cachedValue;
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}
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tvDbClient.AcceptedLanguage = TVUtils.NormalizeLanguage(language) ?? DefaultLanguage;
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var result = await resultFactory.Invoke();
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_cache.Set(key, result, TimeSpan.FromHours(1));
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return result;
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}
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finally
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{
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_cacheWriteLock.Release();
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}
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}
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private static string GenerateKey(object[] objects)
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{
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var key = string.Empty;
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foreach (var obj in objects)
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{
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key += nameof(obj);
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var objType = obj.GetType();
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if (objType.IsPrimitive || objType == typeof(string))
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{
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key += obj.ToString();
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}
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else
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{
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foreach (PropertyInfo propertyInfo in objType.GetProperties())
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{
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var currentValue = propertyInfo.GetValue(obj, null);
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if (currentValue == null)
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{
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continue;
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}
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key += propertyInfo.Name + currentValue;
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}
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}
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}
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return key;
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}
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}
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}
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