Enter selectMostSuitableLanguage()

src/server/i18n.cpp

@@ -128,4 +128,10 @@ UserLangPreferences parseUserLanguagePreferences(const std::string& s)
   return {{s, 1}};
 }
 
+std::string selectMostSuitableLanguage(const UserLangPreferences& prefs)
+{
+  // TOOD: implement properly
+  return prefs[0].lang;
+}
+
 } // namespace kiwix

src/server/i18n.h

@@ -99,6 +99,8 @@ typedef std::vector<LangPreference> UserLangPreferences;
 
 UserLangPreferences parseUserLanguagePreferences(const std::string& s);
 
+std::string selectMostSuitableLanguage(const UserLangPreferences& prefs);
+
 } // namespace kiwix
 
 #endif // KIWIX_SERVER_I18N

src/server/request_context.cpp

@@ -227,7 +227,8 @@ std::string RequestContext::determine_user_language() const
 
   try {
     const std::string acceptLanguage = get_header("Accept-Language");
-    return parseUserLanguagePreferences(acceptLanguage)[0].lang;
+    const auto userLangPrefs = parseUserLanguagePreferences(acceptLanguage);
+    return selectMostSuitableLanguage(userLangPrefs);
   } catch(const std::out_of_range&) {}
 
   return "en";