1 files changed, 149 insertions, 0 deletions
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProviderBase.cs b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProviderBase.cs
new file mode 100644
index 000000000..f82f5f2ab
--- /dev/null
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProviderBase.cs
@@ -0,0 +1,149 @@
+using System;
+using System.Globalization;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Model.Globalization;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Serialization;
+using MediaBrowser.Providers.Plugins.Tmdb.Models.TV;
+using MediaBrowser.Providers.Plugins.Tmdb.Movies;
+using Microsoft.Extensions.Logging;
+
+namespace MediaBrowser.Providers.Plugins.Tmdb.TV
+{
+    public abstract class TmdbEpisodeProviderBase
+    {
+        private const string EpisodeUrlPattern = TmdbUtils.BaseTmdbApiUrl + @"3/tv/{0}/season/{1}/episode/{2}?api_key={3}&append_to_response=images,external_ids,credits,videos";
+        private readonly IHttpClient _httpClient;
+        private readonly IServerConfigurationManager _configurationManager;
+        private readonly IJsonSerializer _jsonSerializer;
+        private readonly IFileSystem _fileSystem;
+        private readonly ILocalizationManager _localization;
+        private readonly ILogger<TmdbEpisodeProviderBase> _logger;
+
+        protected TmdbEpisodeProviderBase(IHttpClient httpClient, IServerConfigurationManager configurationManager, IJsonSerializer jsonSerializer, IFileSystem fileSystem, ILocalizationManager localization, ILoggerFactory loggerFactory)
+        {
+            _httpClient = httpClient;
+            _configurationManager = configurationManager;
+            _jsonSerializer = jsonSerializer;
+            _fileSystem = fileSystem;
+            _localization = localization;
+            _logger = loggerFactory.CreateLogger<TmdbEpisodeProviderBase>();
+        }
+
+        protected ILogger Logger => _logger;
+
+        protected async Task<EpisodeResult> GetEpisodeInfo(string seriesTmdbId, int season, int episodeNumber, string preferredMetadataLanguage,
+            CancellationToken cancellationToken)
+        {
+            await EnsureEpisodeInfo(seriesTmdbId, season, episodeNumber, preferredMetadataLanguage, cancellationToken)
+                    .ConfigureAwait(false);
+
+            var dataFilePath = GetDataFilePath(seriesTmdbId, season, episodeNumber, preferredMetadataLanguage);
+
+            return _jsonSerializer.DeserializeFromFile<EpisodeResult>(dataFilePath);
+        }
+
+        internal Task EnsureEpisodeInfo(string tmdbId, int seasonNumber, int episodeNumber, string language, CancellationToken cancellationToken)
+        {
+            if (string.IsNullOrEmpty(tmdbId))
+            {
+                throw new ArgumentNullException(nameof(tmdbId));
+            }
+
+            if (string.IsNullOrEmpty(language))
+            {
+                throw new ArgumentNullException(nameof(language));
+            }
+
+            var path = GetDataFilePath(tmdbId, seasonNumber, episodeNumber, language);
+
+            var fileInfo = _fileSystem.GetFileSystemInfo(path);
+
+            if (fileInfo.Exists)
+            {
+                // If it's recent or automatic updates are enabled, don't re-download
+                if ((DateTime.UtcNow - _fileSystem.GetLastWriteTimeUtc(fileInfo)).TotalDays <= 2)
+                {
+                    return Task.CompletedTask;
+                }
+            }
+
+            return DownloadEpisodeInfo(tmdbId, seasonNumber, episodeNumber, language, cancellationToken);
+        }
+
+        internal string GetDataFilePath(string tmdbId, int seasonNumber, int episodeNumber, string preferredLanguage)
+        {
+            if (string.IsNullOrEmpty(tmdbId))
+            {
+                throw new ArgumentNullException(nameof(tmdbId));
+            }
+
+            if (string.IsNullOrEmpty(preferredLanguage))
+            {
+                throw new ArgumentNullException(nameof(preferredLanguage));
+            }
+
+            var path = TmdbSeriesProvider.GetSeriesDataPath(_configurationManager.ApplicationPaths, tmdbId);
+
+            var filename = string.Format("season-{0}-episode-{1}-{2}.json",
+                seasonNumber.ToString(CultureInfo.InvariantCulture),
+                episodeNumber.ToString(CultureInfo.InvariantCulture),
+                preferredLanguage);
+
+            return Path.Combine(path, filename);
+        }
+
+        internal async Task DownloadEpisodeInfo(string id, int seasonNumber, int episodeNumber, string preferredMetadataLanguage, CancellationToken cancellationToken)
+        {
+            var mainResult = await FetchMainResult(EpisodeUrlPattern, id, seasonNumber, episodeNumber, preferredMetadataLanguage, cancellationToken).ConfigureAwait(false);
+
+            var dataFilePath = GetDataFilePath(id, seasonNumber, episodeNumber, preferredMetadataLanguage);
+
+            Directory.CreateDirectory(Path.GetDirectoryName(dataFilePath));
+            _jsonSerializer.SerializeToFile(mainResult, dataFilePath);
+        }
+
+        internal async Task<EpisodeResult> FetchMainResult(string urlPattern, string id, int seasonNumber, int episodeNumber, string language, CancellationToken cancellationToken)
+        {
+            var url = string.Format(urlPattern, id, seasonNumber.ToString(CultureInfo.InvariantCulture), episodeNumber, TmdbUtils.ApiKey);
+
+            if (!string.IsNullOrEmpty(language))
+            {
+                url += string.Format("&language={0}", language);
+            }
+
+            var includeImageLanguageParam = TmdbMovieProvider.GetImageLanguagesParam(language);
+            // Get images in english and with no language
+            url += "&include_image_language=" + includeImageLanguageParam;
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            using (var response = await TmdbMovieProvider.Current.GetMovieDbResponse(new HttpRequestOptions
+            {
+                Url = url,
+                CancellationToken = cancellationToken,
+                AcceptHeader = TmdbUtils.AcceptHeader
+
+            }).ConfigureAwait(false))
+            {
+                using (var json = response.Content)
+                {
+                    return await _jsonSerializer.DeserializeFromStreamAsync<EpisodeResult>(json).ConfigureAwait(false);
+                }
+            }
+        }
+
+        protected Task<HttpResponseInfo> GetResponse(string url, CancellationToken cancellationToken)
+        {
+            return _httpClient.GetResponse(new HttpRequestOptions
+            {
+                CancellationToken = cancellationToken,
+                Url = url
+            });
+        }
+    }
+}