Fixed: Displaying audio and subtitle languages in UI

frontend/src/EpisodeFile/MediaInfo.js

@@ -1,6 +1,7 @@
 import _ from 'lodash';
 import PropTypes from 'prop-types';
 import React from 'react';
+import getLanguageName from 'Utilities/String/getLanguageName';
 import * as mediaInfoTypes from './mediaInfoTypes';
 
 function formatLanguages(languages) {
@@ -8,7 +9,7 @@ function formatLanguages(languages) {
     return null;
   }
 
-  const splitLanguages = _.uniq(languages.split(' / '));
+  const splitLanguages = _.uniq(languages.split('/')).map((l) => getLanguageName(l));
 
   if (splitLanguages.length > 3) {
     return (
@@ -40,18 +41,15 @@ function MediaInfo(props) {
     return (
       <span>
         {
-          !!audioCodec &&
-            audioCodec
+          audioCodec ? audioCodec : ''
         }
 
         {
-          !!audioCodec && !!audioChannels &&
-          ' - '
+          audioCodec && audioChannels ? ' - ' : ''
         }
 
         {
-          !!audioChannels &&
-          audioChannels.toFixed(1)
+          audioChannels ? audioChannels.toFixed(1) : ''
         }
       </span>
     );

frontend/src/Settings/UI/UISettingsConnector.js

@@ -9,7 +9,7 @@ import createSettingsSectionSelector from 'Store/Selectors/createSettingsSection
 import UISettings from './UISettings';
 
 const SECTION = 'ui';
-const FILTER_LANGUAGES = ['Any', 'Unknown'];
+const FILTER_LANGUAGES = ['Any', 'Unknown', 'Original'];
 
 function createFilteredLanguagesSelector() {
   return createSelector(

frontend/src/Utilities/String/getLanguageName.js

@@ -0,0 +1,27 @@
+import createAjaxRequest from 'Utilities/createAjaxRequest';
+
+function getTranslations() {
+  return createAjaxRequest({
+    global: false,
+    dataType: 'json',
+    url: '/localization/language'
+  }).request;
+}
+
+let languageNames = new Intl.DisplayNames(['en'], { type: 'language' });
+
+getTranslations().then((data) => {
+  const names = new Intl.DisplayNames([data.identifier], { type: 'language' });
+
+  if (names) {
+    languageNames = names;
+  }
+});
+
+export default function getLanguageName(code) {
+  if (!languageNames) {
+    return code;
+  }
+
+  return languageNames.of(code) ?? code;
+}

src/NzbDrone.Core/Localization/LocalizationService.cs

@@ -20,6 +20,7 @@ namespace NzbDrone.Core.Localization
         Dictionary<string, string> GetLocalizationDictionary();
         string GetLocalizedString(string phrase);
         string GetLocalizedString(string phrase, string language);
+        string GetLanguageIdentifier();
     }
 
     public class LocalizationService : ILocalizationService, IHandleAsync<ConfigSavedEvent>
@@ -45,14 +46,14 @@ namespace NzbDrone.Core.Localization
 
         public Dictionary<string, string> GetLocalizationDictionary()
         {
-            var language = GetSetLanguageFileName();
+            var language = GetLanguageFileName();
 
             return GetLocalizationDictionary(language);
         }
 
         public string GetLocalizedString(string phrase)
         {
-            var language = GetSetLanguageFileName();
+            var language = GetLanguageFileName();
 
             return GetLocalizedString(phrase, language);
         }
@@ -66,7 +67,7 @@ namespace NzbDrone.Core.Localization
 
             if (language.IsNullOrWhiteSpace())
             {
-                language = GetSetLanguageFileName();
+                language = GetLanguageFileName();
             }
 
             if (language == null)
@@ -84,19 +85,24 @@ namespace NzbDrone.Core.Localization
             return phrase;
         }
 
-        private string GetSetLanguageFileName()
+        public string GetLanguageIdentifier()
         {
             var isoLanguage = IsoLanguages.Get((Language)_configService.UILanguage);
             var language = isoLanguage.TwoLetterCode;
 
             if (isoLanguage.CountryCode.IsNotNullOrWhiteSpace())
             {
-                language = string.Format("{0}_{1}", language, isoLanguage.CountryCode);
+                language = $"{language}-{isoLanguage.CountryCode.ToUpperInvariant()}";
             }
 
             return language;
         }
 
+        private string GetLanguageFileName()
+        {
+            return GetLanguageIdentifier().Replace("-", "_").ToLowerInvariant();
+        }
+
         private Dictionary<string, string> GetLocalizationDictionary(string language)
         {
             if (string.IsNullOrEmpty(language))

src/NzbDrone.Core/Parser/IsoLanguage.cs

@@ -1,4 +1,4 @@
-using NzbDrone.Core.Languages;
+using NzbDrone.Core.Languages;
 
 namespace NzbDrone.Core.Parser
 {
@@ -8,6 +8,7 @@ namespace NzbDrone.Core.Parser
         public string ThreeLetterCode { get; set; }
         public string CountryCode { get; set; }
         public Language Language { get; set; }
+        public string CountyCodeLower => CountryCode?.ToLower();
 
         public IsoLanguage(string twoLetterCode, string countryCode, string threeLetterCode, Language language)
         {

src/Sonarr.Api.V3/Localization/LanguageResource.cs

@@ -0,0 +1,7 @@
+namespace Sonarr.Api.V3.Localization
+{
+    public class LanguageResource
+    {
+        public string Identifier { get; set; }
+    }
+}

src/Sonarr.Api.V3/Localization/LocalizationController.cs

@@ -26,5 +26,17 @@ namespace Sonarr.Api.V3.Localization
         {
             return _localizationService.GetLocalizationDictionary().ToResource();
         }
+
+        [HttpGet("language")]
+        [Produces("application/json")]
+        public LanguageResource GetLanguage()
+        {
+            var identifier = _localizationService.GetLanguageIdentifier();
+
+            return new LanguageResource
+            {
+                Identifier = identifier
+            };
+        }
     }
 }