Merge pull request #9397 from Bond-009/nullable

Enable nullable for more files

7 files changed, 67 insertions, 57 deletions

diff --git a/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetImageProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetImageProvider.cs
index eee3658de..ef32b0a07 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetImageProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetImageProvider.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Globalization;
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetProvider.cs
index 1cce7fc35..e6c7dba25 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/BoxSets/TmdbBoxSetProvider.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Globalization;
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/Movies/TmdbMovieProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/Movies/TmdbMovieProvider.cs
index 753a15c6e..fc7202366 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/Movies/TmdbMovieProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/Movies/TmdbMovieProvider.cs
@@ -62,32 +62,35 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.Movies
                         cancellationToken)
                     .ConfigureAwait(false);
 
-                var remoteResult = new RemoteSearchResult
+                if (movie is not null)
                 {
-                    Name = movie.Title ?? movie.OriginalTitle,
-                    SearchProviderName = Name,
-                    ImageUrl = _tmdbClientManager.GetPosterUrl(movie.PosterPath),
-                    Overview = movie.Overview
-                };
+                    var remoteResult = new RemoteSearchResult
+                    {
+                        Name = movie.Title ?? movie.OriginalTitle,
+                        SearchProviderName = Name,
+                        ImageUrl = _tmdbClientManager.GetPosterUrl(movie.PosterPath),
+                        Overview = movie.Overview
+                    };
 
-                if (movie.ReleaseDate is not null)
-                {
-                    var releaseDate = movie.ReleaseDate.Value.ToUniversalTime();
-                    remoteResult.PremiereDate = releaseDate;
-                    remoteResult.ProductionYear = releaseDate.Year;
-                }
+                    if (movie.ReleaseDate is not null)
+                    {
+                        var releaseDate = movie.ReleaseDate.Value.ToUniversalTime();
+                        remoteResult.PremiereDate = releaseDate;
+                        remoteResult.ProductionYear = releaseDate.Year;
+                    }
 
-                remoteResult.SetProviderId(MetadataProvider.Tmdb, movie.Id.ToString(CultureInfo.InvariantCulture));
+                    remoteResult.SetProviderId(MetadataProvider.Tmdb, movie.Id.ToString(CultureInfo.InvariantCulture));
 
-                if (!string.IsNullOrWhiteSpace(movie.ImdbId))
-                {
-                    remoteResult.SetProviderId(MetadataProvider.Imdb, movie.ImdbId);
-                }
+                    if (!string.IsNullOrWhiteSpace(movie.ImdbId))
+                    {
+                        remoteResult.SetProviderId(MetadataProvider.Imdb, movie.ImdbId);
+                    }
 
-                return new[] { remoteResult };
+                    return new[] { remoteResult };
+                }
             }
 
-            IReadOnlyList<SearchMovie> movieResults;
+            IReadOnlyList<SearchMovie>? movieResults = null;
             if (searchInfo.TryGetProviderId(MetadataProvider.Imdb, out id))
             {
                 var result = await _tmdbClientManager.FindByExternalIdAsync(
@@ -95,18 +98,20 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.Movies
                     FindExternalSource.Imdb,
                     TmdbUtils.GetImageLanguagesParam(searchInfo.MetadataLanguage),
                     cancellationToken).ConfigureAwait(false);
-                movieResults = result.MovieResults;
+                movieResults = result?.MovieResults;
             }
-            else if (searchInfo.TryGetProviderId(MetadataProvider.Tvdb, out id))
+
+            if (movieResults is null && searchInfo.TryGetProviderId(MetadataProvider.Tvdb, out id))
             {
                 var result = await _tmdbClientManager.FindByExternalIdAsync(
                     id,
                     FindExternalSource.TvDb,
                     TmdbUtils.GetImageLanguagesParam(searchInfo.MetadataLanguage),
                     cancellationToken).ConfigureAwait(false);
-                movieResults = result.MovieResults;
+                movieResults = result?.MovieResults;
             }
-            else
+
+            if (movieResults is null)
             {
                 movieResults = await _tmdbClientManager
                     .SearchMovieAsync(searchInfo.Name, searchInfo.Year ?? 0, searchInfo.MetadataLanguage, cancellationToken)
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
index 44d5bab76..c03a1ca3b 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
@@ -105,6 +105,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.People
             if (personTmdbId > 0)
             {
                 var person = await _tmdbClientManager.GetPersonAsync(personTmdbId, info.MetadataLanguage, cancellationToken).ConfigureAwait(false);
+                if (person is null)
+                {
+                    return result;
+                }
 
                 result.HasMetadata = true;
 
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbSeriesProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbSeriesProvider.cs
index 046b63faf..09d1a739d 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbSeriesProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbSeriesProvider.cs
@@ -209,7 +209,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
                 }
             }
 
-            if (string.IsNullOrEmpty(tmdbId))
+            if (!int.TryParse(tmdbId, CultureInfo.InvariantCulture, out int tmdbIdInt))
             {
                 return result;
             }
@@ -217,9 +217,14 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
             cancellationToken.ThrowIfCancellationRequested();
 
             var tvShow = await _tmdbClientManager
-                .GetSeriesAsync(Convert.ToInt32(tmdbId, CultureInfo.InvariantCulture), info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken)
+                .GetSeriesAsync(tmdbIdInt, info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken)
                 .ConfigureAwait(false);
 
+            if (tvShow is null)
+            {
+                return result;
+            }
+
             result = new MetadataResult<Series>
             {
                 Item = MapTvShowToSeries(tvShow, info.MetadataCountryCode),
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
index c7441bf35..500ebaf71 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
@@ -1,6 +1,4 @@
-#nullable disable
-
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Threading;
@@ -50,10 +48,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb movie or null if not found.</returns>
-        public async Task<Movie> GetMovieAsync(int tmdbId, string language, string imageLanguages, CancellationToken cancellationToken)
+        public async Task<Movie?> GetMovieAsync(int tmdbId, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             var key = $"movie-{tmdbId.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out Movie movie))
+            if (_memoryCache.TryGetValue(key, out Movie? movie))
             {
                 return movie;
             }
@@ -89,10 +87,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb collection or null if not found.</returns>
-        public async Task<Collection> GetCollectionAsync(int tmdbId, string language, string imageLanguages, CancellationToken cancellationToken)
+        public async Task<Collection?> GetCollectionAsync(int tmdbId, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             var key = $"collection-{tmdbId.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out Collection collection))
+            if (_memoryCache.TryGetValue(key, out Collection? collection))
             {
                 return collection;
             }
@@ -122,10 +120,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb tv show information or null if not found.</returns>
-        public async Task<TvShow> GetSeriesAsync(int tmdbId, string language, string imageLanguages, CancellationToken cancellationToken)
+        public async Task<TvShow?> GetSeriesAsync(int tmdbId, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             var key = $"series-{tmdbId.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out TvShow series))
+            if (_memoryCache.TryGetValue(key, out TvShow? series))
             {
                 return series;
             }
@@ -162,7 +160,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb tv show episode group information or null if not found.</returns>
-        private async Task<TvGroupCollection> GetSeriesGroupAsync(int tvShowId, string displayOrder, string language, string imageLanguages, CancellationToken cancellationToken)
+        private async Task<TvGroupCollection?> GetSeriesGroupAsync(int tvShowId, string displayOrder, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             TvGroupType? groupType =
                 string.Equals(displayOrder, "originalAirDate", StringComparison.Ordinal) ? TvGroupType.OriginalAirDate :
@@ -180,7 +178,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
             }
 
             var key = $"group-{tvShowId.ToString(CultureInfo.InvariantCulture)}-{displayOrder}-{language}";
-            if (_memoryCache.TryGetValue(key, out TvGroupCollection group))
+            if (_memoryCache.TryGetValue(key, out TvGroupCollection? group))
             {
                 return group;
             }
@@ -217,10 +215,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb tv season information or null if not found.</returns>
-        public async Task<TvSeason> GetSeasonAsync(int tvShowId, int seasonNumber, string language, string imageLanguages, CancellationToken cancellationToken)
+        public async Task<TvSeason?> GetSeasonAsync(int tvShowId, int seasonNumber, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             var key = $"season-{tvShowId.ToString(CultureInfo.InvariantCulture)}-s{seasonNumber.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out TvSeason season))
+            if (_memoryCache.TryGetValue(key, out TvSeason? season))
             {
                 return season;
             }
@@ -254,10 +252,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="imageLanguages">A comma-separated list of image languages.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb tv episode information or null if not found.</returns>
-        public async Task<TvEpisode> GetEpisodeAsync(int tvShowId, int seasonNumber, int episodeNumber, string displayOrder, string language, string imageLanguages, CancellationToken cancellationToken)
+        public async Task<TvEpisode?> GetEpisodeAsync(int tvShowId, int seasonNumber, int episodeNumber, string displayOrder, string? language, string? imageLanguages, CancellationToken cancellationToken)
         {
             var key = $"episode-{tvShowId.ToString(CultureInfo.InvariantCulture)}-s{seasonNumber.ToString(CultureInfo.InvariantCulture)}e{episodeNumber.ToString(CultureInfo.InvariantCulture)}-{displayOrder}-{language}";
-            if (_memoryCache.TryGetValue(key, out TvEpisode episode))
+            if (_memoryCache.TryGetValue(key, out TvEpisode? episode))
             {
                 return episode;
             }
@@ -301,10 +299,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="language">The episode's language.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb person information or null if not found.</returns>
-        public async Task<Person> GetPersonAsync(int personTmdbId, string language, CancellationToken cancellationToken)
+        public async Task<Person?> GetPersonAsync(int personTmdbId, string language, CancellationToken cancellationToken)
         {
             var key = $"person-{personTmdbId.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out Person person))
+            if (_memoryCache.TryGetValue(key, out Person? person))
             {
                 return person;
             }
@@ -333,14 +331,14 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="language">The item's language.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb item or null if not found.</returns>
-        public async Task<FindContainer> FindByExternalIdAsync(
+        public async Task<FindContainer?> FindByExternalIdAsync(
             string externalId,
             FindExternalSource source,
             string language,
             CancellationToken cancellationToken)
         {
             var key = $"find-{source.ToString()}-{externalId.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out FindContainer result))
+            if (_memoryCache.TryGetValue(key, out FindContainer? result))
             {
                 return result;
             }
@@ -372,7 +370,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         public async Task<IReadOnlyList<SearchTv>> SearchSeriesAsync(string name, string language, int year = 0, CancellationToken cancellationToken = default)
         {
             var key = $"searchseries-{name}-{language}";
-            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchTv> series))
+            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchTv>? series) && series is not null)
             {
                 return series.Results;
             }
@@ -400,7 +398,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         public async Task<IReadOnlyList<SearchPerson>> SearchPersonAsync(string name, CancellationToken cancellationToken)
         {
             var key = $"searchperson-{name}";
-            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchPerson> person))
+            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchPerson>? person) && person is not null)
             {
                 return person.Results;
             }
@@ -442,7 +440,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         public async Task<IReadOnlyList<SearchMovie>> SearchMovieAsync(string name, int year, string language, CancellationToken cancellationToken)
         {
             var key = $"moviesearch-{name}-{year.ToString(CultureInfo.InvariantCulture)}-{language}";
-            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchMovie> movies))
+            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchMovie>? movies) && movies is not null)
             {
                 return movies.Results;
             }
@@ -471,7 +469,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         public async Task<IReadOnlyList<SearchCollection>> SearchCollectionAsync(string name, string language, CancellationToken cancellationToken)
         {
             var key = $"collectionsearch-{name}-{language}";
-            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchCollection> collections))
+            if (_memoryCache.TryGetValue(key, out SearchContainer<SearchCollection>? collections) && collections is not null)
             {
                 return collections.Results;
             }
@@ -496,7 +494,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="size">The image size to fetch.</param>
         /// <param name="path">The relative URL of the image.</param>
         /// <returns>The absolute URL.</returns>
-        private string GetUrl(string size, string path)
+        private string? GetUrl(string? size, string path)
         {
             if (string.IsNullOrEmpty(path))
             {
@@ -511,7 +509,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// </summary>
         /// <param name="posterPath">The relative URL of the poster.</param>
         /// <returns>The absolute URL.</returns>
-        public string GetPosterUrl(string posterPath)
+        public string? GetPosterUrl(string posterPath)
         {
             return GetUrl(Plugin.Instance.Configuration.PosterSize, posterPath);
         }
@@ -521,7 +519,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// </summary>
         /// <param name="actorProfilePath">The relative URL of the profile image.</param>
         /// <returns>The absolute URL.</returns>
-        public string GetProfileUrl(string actorProfilePath)
+        public string? GetProfileUrl(string actorProfilePath)
         {
             return GetUrl(Plugin.Instance.Configuration.ProfileSize, actorProfilePath);
         }
@@ -579,7 +577,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// <param name="type">The type of the image.</param>
         /// <param name="requestLanguage">The requested language.</param>
         /// <returns>The remote images.</returns>
-        private IEnumerable<RemoteImageInfo> ConvertToRemoteImageInfo(IReadOnlyList<ImageData> images, string size, ImageType type, string requestLanguage)
+        private IEnumerable<RemoteImageInfo> ConvertToRemoteImageInfo(IReadOnlyList<ImageData> images, string? size, ImageType type, string requestLanguage)
         {
             // sizes provided are for original resolution, don't store them when downloading scaled images
             var scaleImage = !string.Equals(size, "original", StringComparison.OrdinalIgnoreCase);
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
index 44c2c81f4..b326d22c8 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Text.RegularExpressions;
 using MediaBrowser.Model.Entities;
 using TMDbLib.Objects.General;
@@ -128,7 +129,8 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// </summary>
         /// <param name="language">The language code.</param>
         /// <returns>The normalized language code.</returns>
-        public static string NormalizeLanguage(string language)
+        [return: NotNullIfNotNull(nameof(language))]
+        public static string? NormalizeLanguage(string? language)
         {
             if (string.IsNullOrEmpty(language))
             {