[addon] adds initial version for languages visualization

addon/lib/languages.js

@@ -0,0 +1,45 @@
+const languageMapping = {
+  'dubbed': 'Dubbed',
+  'multi': 'Multi',
+  'english': '🇬🇧',
+  'japanese': '🇯🇵',
+  'korean': '🇰🇷',
+  'chinese': '🇨🇳',
+  'french': '🇫🇷',
+  'german': '🇩🇪',
+  'dutch': '🇳🇱',
+  'portuguese': '🇵🇹',
+  'spanish': '🇪🇸',
+  'italian': '🇮🇹',
+  'russian': '🇷🇺',
+  'hindi': '🇮🇳',
+  'telugu': '🇮🇳',
+  'tamil': '🇮🇳',
+  'polish': '🇵🇱',
+  'lithuanian': '🇱🇹',
+  'czech': '🇨🇿',
+  'hungarian': '🇭🇺',
+  'romanian': '🇷🇴',
+  'croatian': '🇭🇷',
+  'greek': '🇬🇷',
+  'danish': '🇩🇰',
+  'finnish': '🇫🇮',
+  'swedish': '🇸🇪',
+  'norwegian': '🇳🇴',
+  'turkish': '🇹🇷',
+  'arabic': '🇸🇦',
+  'hebrew': '🇮🇱'
+}
+
+function mapLanguages(languages) {
+  const mapped = languages
+      .map(language => languageMapping[language])
+      .filter(language => language)
+      .sort((a, b) => Object.values(languageMapping).indexOf(a) - Object.values(languageMapping).indexOf(b));
+  const unmapped = languages
+      .filter(language => !languageMapping[language])
+      .sort((a, b) => a.localeCompare(b))
+  return [...new Set([].concat(mapped).concat(unmapped))];
+}
+
+module.exports = { mapLanguages }