From 88597e1834a3005ad39ce3e0023b1ca09f933ae3 Mon Sep 17 00:00:00 2001
From: Veloman Yunkan <veloman.yunkan@gmail.com>
Date: Tue, 29 Nov 2022 12:54:45 +0400
Subject: [PATCH] Enter selectMostSuitableLanguage()

---
 src/server/i18n.cpp            | 6 ++++++
 src/server/i18n.h              | 2 ++
 src/server/request_context.cpp | 3 ++-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/server/i18n.cpp b/src/server/i18n.cpp
index acde36993..faf14d5cd 100644
--- a/src/server/i18n.cpp
+++ b/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
diff --git a/src/server/i18n.h b/src/server/i18n.h
index c3d648f0c..23236074a 100644
--- a/src/server/i18n.h
+++ b/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
diff --git a/src/server/request_context.cpp b/src/server/request_context.cpp
index d2898ed47..4eac4ad33 100644
--- a/src/server/request_context.cpp
+++ b/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";