New: Add Option to localize metadata written in .nfo if available (#5060)

* Add Option to localize metadata written in .nfo if available

* Fix Pull Request comments

src/NzbDrone.Core/Extras/Metadata/Consumers/Xbmc/XbmcMetadata.cs

@@ -10,11 +10,13 @@
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Extras.Metadata.Files;
+using NzbDrone.Core.Languages;
 using NzbDrone.Core.MediaCover;
 using NzbDrone.Core.MediaFiles;
 using NzbDrone.Core.MediaFiles.MediaInfo;
 using NzbDrone.Core.Movies;
 using NzbDrone.Core.Movies.Credits;
+using NzbDrone.Core.Movies.Translations;
 
 namespace NzbDrone.Core.Extras.Metadata.Consumers.Xbmc
 {
@@ -25,11 +27,13 @@ public class XbmcMetadata : MetadataBase<XbmcMetadataSettings>
         private readonly IDetectXbmcNfo _detectNfo;
         private readonly IDiskProvider _diskProvider;
         private readonly ICreditService _creditService;
+        private readonly IMovieTranslationService _movieTranslationsService;
 
         public XbmcMetadata(IDetectXbmcNfo detectNfo,
                             IDiskProvider diskProvider,
                             IMapCoversToLocal mediaCoverService,
                             ICreditService creditService,
+                            IMovieTranslationService movieTranslationsService,
                             Logger logger)
         {
             _logger = logger;
@@ -37,6 +41,7 @@ public XbmcMetadata(IDetectXbmcNfo detectNfo,
             _diskProvider = diskProvider;
             _detectNfo = detectNfo;
             _creditService = creditService;
+            _movieTranslationsService = movieTranslationsService;
         }
 
         private static readonly Regex MovieImagesRegex = new Regex(@"^(?<type>poster|banner|fanart|clearart|discart|keyart|landscape|logo|backdrop|clearlogo)\.(?:png|jpe?g)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
@@ -112,6 +117,15 @@ public override MetadataFileResult MovieMetadata(Movie movie, MovieFile movieFil
             if (Settings.MovieMetadata)
             {
                 _logger.Debug("Generating Movie Metadata for: {0}", Path.Combine(movie.Path, movieFile.RelativePath));
+
+                var movieMetadataLanguage = (Settings.MovieMetadataLanguage == (int)Language.Original) ?
+                    (int)movie.OriginalLanguage :
+                    Settings.MovieMetadataLanguage;
+
+                var movieTranslations = _movieTranslationsService.GetAllTranslationsForMovie(movie.Id);
+                var selectedSettingsLanguage = Language.FindById(movieMetadataLanguage);
+                var movieTranslation = movieTranslations.FirstOrDefault(mt => mt.Language == selectedSettingsLanguage);
+
                 var watched = GetExistingWatchedStatus(movie, movieFile.RelativePath);
 
                 var sb = new StringBuilder();
@@ -128,14 +142,14 @@ public override MetadataFileResult MovieMetadata(Movie movie, MovieFile movieFil
 
                     var details = new XElement("movie");
 
-                    details.Add(new XElement("title", movie.Title));
+                    details.Add(new XElement("title", movieTranslation?.Title ?? movie.Title));
 
                     if (movie.Ratings != null && movie.Ratings.Votes > 0)
                     {
                         details.Add(new XElement("rating", movie.Ratings.Value));
                     }
 
-                    details.Add(new XElement("plot", movie.Overview));
+                    details.Add(new XElement("plot", movieTranslation?.Overview ?? movie.Overview));
                     details.Add(new XElement("id", movie.ImdbId));
                     details.Add(new XElement("tmdbid", movie.TmdbId));
 

src/NzbDrone.Core/Extras/Metadata/Consumers/Xbmc/XbmcMetadataSettings.cs

@@ -1,5 +1,6 @@
 using FluentValidation;
 using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Languages;
 using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Validation;
 
@@ -20,6 +21,7 @@ public XbmcMetadataSettings()
         {
             MovieMetadata = true;
             MovieMetadataURL = false;
+            MovieMetadataLanguage = (int)Language.English;
             MovieImages = true;
             UseMovieNfo = false;
         }
@@ -30,10 +32,13 @@ public XbmcMetadataSettings()
         [FieldDefinition(1, Label = "Movie Metadata URL", Type = FieldType.Checkbox, HelpText = "Radarr will write the tmdb/imdb url in the .nfo file", Advanced = true)]
         public bool MovieMetadataURL { get; set; }
 
-        [FieldDefinition(2, Label = "Movie Images", Type = FieldType.Checkbox)]
+        [FieldDefinition(2, Label = "Metadata Language", Type = FieldType.Select, SelectOptions = typeof(RealLanguageFieldConverter), HelpText = "Radarr will write metadata in the selected language if available")]
+        public int MovieMetadataLanguage { get; set; }
+
+        [FieldDefinition(3, Label = "Movie Images", Type = FieldType.Checkbox)]
         public bool MovieImages { get; set; }
 
-        [FieldDefinition(3, Label = "Use Movie.nfo", Type = FieldType.Checkbox, HelpText = "Radarr will write metadata to movie.nfo instead of the default <movie-filename>.nfo")]
+        [FieldDefinition(4, Label = "Use Movie.nfo", Type = FieldType.Checkbox, HelpText = "Radarr will write metadata to movie.nfo instead of the default <movie-filename>.nfo")]
         public bool UseMovieNfo { get; set; }
 
         public bool IsValid => true;

src/NzbDrone.Core/Languages/RealLanguageFieldConverter.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+using System.Linq;
+using NzbDrone.Core.Annotations;
+
+namespace NzbDrone.Core.Languages
+{
+    public class RealLanguageFieldConverter : ISelectOptionsConverter
+    {
+        public List<SelectOption> GetSelectOptions()
+        {
+            return Language.All
+                .Where(l => l != Language.Unknown && l != Language.Any)
+                .ToList()
+                .ConvertAll(v => new SelectOption { Value = v.Id, Name = v.Name });
+        }
+    }
+}