Method getJsSlideshow

/*
 * Get Slideshow  - 1. data for javascript, 2. data for displaying buttons
 */
public function getJsSlideshow($catid, $id, $slideshow = 0, $catidSlug = '', $idSlug = '')
{
    jimport('joomla.filesystem.file');
    phocagalleryimport('phocagallery.file.filethumbnail');
    $app = Factory::getApplication();
    $db = Factory::getDBO();
    $params = $app->getParams();
    //$image_ordering		= $params->get( 'image_ordering', 1 );
    //$imageOrdering 		= PhocaGalleryOrdering::getOrderingString($image_ordering);
    $detailWindow = $params->get('detail_window', 0);
    if ($detailWindow == 7) {
        $tCom = '';
    } else {
        $tCom = '&tmpl=component';
    }
    $i = explode(':', $idSlug);
    $id = $i[0];
    $alias = $i[1];
    $j = explode(':', $catidSlug);
    $catid = $j[0];
    $catalias = $j[1];
    $href = PhocaGalleryRoute::getImageRoute($id, $catid, $alias, $catalias) . $tCom;
    // 1. GET DATA FOR JAVASCRIPT
    $jsSlideshowData['files'] = '';
    //Get filename of all photos
    $query = 'SELECT a.id, a.filename, a.extl, a.description' . ' FROM #__phocagallery AS a' . ' LEFT JOIN #__phocagallery_img_votes_statistics AS r ON r.imgid = a.id' . ' WHERE a.catid=' . (int) $catid . ' AND a.published = 1 AND a.approved = 1' . $this->_imgordering['output'];
    $db->setQuery($query);
    $filenameAll = $db->loadObjectList();
    $countImg = 0;
    $endComma = ',';
    if (!empty($filenameAll)) {
        $countFilename = count($filenameAll);
        foreach ($filenameAll as $key => $value) {
            $countImg++;
            if ($countImg == $countFilename) {
                $endComma = '';
            }
            $filterTags = array();
            $filterAttrs = array();
            $filter = new InputFilter($filterTags, $filterAttrs, 1, 1, 1);
            $description = $filter->clean(PhocaGalleryText::strTrimAll($value->description), 'html');
            $description = addslashes($value->description);
            $description = trim($description);
            $description = str_replace("\n", '', $description);
            $description = str_replace("\r", '', $description);
            if (isset($value->extl) && $value->extl != '') {
                $jsSlideshowData['files'] .= '["' . $value->extl . '", "", "", "' . $description . '"]' . $endComma . "\n";
            } else {
                $fileThumbnail = PhocaGalleryFileThumbnail::getThumbnailName($value->filename, 'large');
                $imgLink = Uri::base(true) . '/' . $fileThumbnail->rel;
                if (File::exists($fileThumbnail->abs)) {
                    $jsSlideshowData['files'] .= '["' . $imgLink . '", "", "", "' . $description . '"]' . $endComma . "\n";
                } else {
                    $fileThumbnail = Uri::base(true) . '/' . "media/com_phocagallery/images/phoca_thumb_l_no_image.png";
                    $jsSlideshowData['files'] .= '["' . $fileThumbnail . '", "", "", ""]' . $endComma . "\n";
                }
            }
        }
    }
    // 2. GET DATA FOR DISPLAYING SLIDESHOW BUTTONS
    //We can display slideshow option if there is more than one foto
    //But in database there can be more photos - more rows but if file is in db but it doesn't exist, we don't count it
    //$countImg = SQLQuery::selectOne($mdb2, "SELECT COUNT(*) FROM $db_gallery WHERE siteid=$id");
    if ($countImg > 1) {
        //Data from GET['COM_PHOCAGALLERY_SLIDESHOW']
        if ($slideshow == 1) {
            $jsSlideshowData['icons'] = '<div class="pg-imgbgd">' . '<a href="' . Route::_($href . '&phocaslideshow=0') . '" title="' . Text::_('COM_PHOCAGALLERY_STOP_SLIDESHOW') . '" >' . PhocaGalleryRenderFront::renderIcon('stop', 'media/com_phocagallery/images/icon-stop.png', Text::_('COM_PHOCAGALLERY_STOP_SLIDESHOW')) . '</a></div>' . '</td><td align="center">' . PhocaGalleryRenderFront::renderIcon('play', 'media/com_phocagallery/images/icon-play-grey.png', Text::_('COM_PHOCAGALLERY_STOP_SLIDESHOW'), 'ph-icon-disabled');
        } else {
            $jsSlideshowData['icons'] = PhocaGalleryRenderFront::renderIcon('stop', 'media/com_phocagallery/images/icon-stop-grey.png', Text::_('COM_PHOCAGALLERY_STOP_SLIDESHOW'), 'ph-icon-disabled') . '</td><td align="center">' . '<div class="pg-imgbgd">' . '<a href="' . Route::_($href . '&phocaslideshow=1') . '" title="' . Text::_('COM_PHOCAGALLERY_START_SLIDESHOW') . '">' . PhocaGalleryRenderFront::renderIcon('play', 'media/com_phocagallery/images/icon-play.png', Text::_('COM_PHOCAGALLERY_START_SLIDESHOW')) . '</a></div>';
        }
    } else {
        $jsSlideshowData['icons'] = '';
    }
    return $jsSlideshowData;
    //files (javascript) and icons (buttons)
}