FIX: improve for HTTP Accept-Language header not supported

Refs: #910

src/Controller/Api/V1/UsersController.php

@@ -974,7 +974,7 @@ class UsersController extends AppController
 
         $reviewsNumber = count($user->reviews);
         if ($reviewsNumber === 0) {
-            $lang = I18n::locale();
+            $lang = $this->selectedLanguage;
             $this->redirect("$lang/users/$id", 301);
         } else {
             $this->set(compact('user'));

src/Controller/AppController.php

@@ -183,7 +183,7 @@ class AppController extends Controller
                 $data['title'] = trim(filter_var($linkData['title'], FILTER_SANITIZE_STRING));
             }
             if (isset($linkData['url'])) {
-                $lang = I18n::locale();
+                $lang = $this->selectedLanguage;
                 $urlPart = $linkData['url'];
                 $data['url'] = "/$lang/$urlPart";
             }
@@ -195,7 +195,6 @@ class AppController extends Controller
     public function beforeFilter(Event $event)
     {
         $this->Auth->allow(['index', 'logout', 'view', 'request', 'search']);
-
         $this->setLocale();
         $this->setOpenGraph();
         parent::beforeFilter($event);
@@ -208,17 +207,20 @@ class AppController extends Controller
      */
     protected function setLocale()
     {
-        $selectedLanguage = I18n::locale();
         if ($this->request->param('language')) {
             $lang = $this->request->param('language');
         } else {
             $lang = preg_replace('/_\w*/', "", I18n::locale());
         }
 
-        if ($lang && isset($this->availableLanguages[$lang])) {
+        if (isset($this->availableLanguages[$lang])) {
             I18n::locale($lang);
             $selectedLanguage = $this->availableLanguages[$lang];
+        } else {
+            I18n::locale('en');
+            $selectedLanguage = I18n::locale();
         }
+
         $this->selectedLanguage = $selectedLanguage;
         $this->set('selectedLanguage', $selectedLanguage);
         $this->set('availableLanguages', $this->availableLanguages);

src/View/Helper/ReviewHelper.php

@@ -129,7 +129,7 @@ class ReviewHelper extends ListItemHelper
                         'created' => $this->Time->format(
                             $review->created->toUnixString(),
                             [IntlDateFormatter::SHORT, -1],
-                            I18n::locale()
+                            $selectedLanguage
                         ),
                         'stars' => $this->Rating->display($review->evaluation),
                     ]
@@ -155,7 +155,7 @@ class ReviewHelper extends ListItemHelper
                         'created' => $this->Time->format(
                             $review->created->toUnixString(),
                             [IntlDateFormatter::SHORT, -1],
-                            I18n::locale()
+                            $selectedLanguage
                         ),
                         'stars' => $this->Rating->display($review->evaluation),
                     ]