public function index($request)
 {
     /* SECURING */
     if (!(isset($_GET['q']) || isset($_GET['advanced']))) {
         return Utils::getNotFoundResponse();
     }
     $filteredFileds = [];
     foreach ($_GET as $k => $value) {
         if (in_array($k, array_merge(self::$acceptableSearchFields, ["q", "advanced"])) && !empty($value)) {
             $filteredFileds[$k] = $value;
         }
     }
     if (empty($filteredFileds)) {
         return Utils::getNotFoundResponse();
     }
     /* END SECURING */
     $data = [];
     $data['filteredFields'] = $filteredFileds;
     $order = "none";
     if (isset($_GET["order"], $_GET["order_way"])) {
         if (in_array($_GET['order'], ['views', 'likes', 'timestamp']) && in_array($_GET['order_way'], ['ASC', 'DESC'])) {
             $order = $_GET['order'] . " " . $_GET['order_way'];
             $filteredFileds['oreder'] = $_GET['order'];
             $filteredFileds['oreder_way'] = $_GET['order_way'];
         }
     }
     /* Advanced */
     if (@$filteredFileds['advanced'] == 1) {
         $data['currentPageTitle'] = 'Recherche avancée';
         $tags_select_type = "or";
         if (isset($filteredFileds['tags_select_type'])) {
             if (in_array($filteredFileds['tags_select_type'], ["or", "and"])) {
                 $tags_select_type = $filteredFileds['tags_select_type'];
             }
         }
         foreach ($filteredFileds as $k => $value) {
             switch ($k) {
                 case "video":
                     $data['videos'] = Video::getSearchVideos($value, $order);
                     break;
                 case "channel":
                     $data['channels'] = UserChannel::getSearchChannels($value);
                     break;
                 case "tags":
                     if (isset($data['videos'])) {
                         $data['videos'] = array_merge($data['videos'], Video::getSearchVideosByTags(explode(" ", $value), $order, $tags_select_type == "and"));
                     } else {
                         $data['videos'] = Video::getSearchVideosByTags(explode(" ", $value), $order, $tags_select_type == "and");
                     }
                     break;
             }
             $_SESSION["last_search"] = "";
         }
         $data['currentPageTitle'] = 'Recherche avancée';
         $data['search'] = "avancée";
     } else {
         /* Normal search */
         $q = urldecode($_GET['q']);
         $data['currentPageTitle'] = $q . ' - Recherche';
         $data['search'] = $q;
         $data['videos'] = Video::getSearchVideos($q, $order);
         $data['channels'] = UserChannel::getSearchChannels($q);
         $_SESSION["last_search"] = $q;
     }
     if (empty($data['videos']) && empty($data['channels']) || strlen($_GET['q']) < 3) {
         $data['error'] = array("message" => "La recherche n'a retourné aucun resultat.", "level" => "error");
         return new ViewResponse('search/error', $data);
     }
     return new ViewResponse('search/search', $data);
 }