public static function importCommentsAjax($source, $language, $start = 0)
{
$response = JCommentsFactory::getAjaxResponse();
require_once dirname(__FILE__) . '/admin.jcomments.migration.php';
$importer = new JCommentsMigrationTool($source, $language, $start);
$importer->import();
if ($importer->getStart() == 0 && $importer->getImported() == 0) {
// if we couldn't import any items on first step
$message = JText::_('A_IMPORT_FAILED');
$response->addScript("jcbackend.showMessage('{$message}', 'info', 'jcomments-message-" . strtolower($source) . "',1);");
$response->addScript("finishCommentsImport('{$source}');");
} else {
if ($importer->getImported() == $importer->getTotal()) {
$message = JText::sprintf('A_IMPORT_DONE', $importer->getImported());
$response->addScript("jcbackend.showMessage('{$message}', 'info', 'jcomments-message-" . strtolower($source) . "');");
$response->addScript("finishCommentsImport('{$source}');");
} else {
if ($importer->getImported() < $importer->getTotal()) {
$imported = $importer->getImported();
$total = $importer->getTotal();
$percent = ceil($imported / $total * 100);
$message = JText::sprintf('%s %% (%s from %s)', $percent, $imported, $total);
$response->addScript("jcbackend.showMessage('{$message}', 'wait', 'jcomments-message-" . strtolower($source) . "');");
$start = $importer->getStart() + $importer->getLimit();
$response->addScript("JCommentsImportCommentsAJAX('{$source}', '{$language}', '{$start}');");
}
}
}
return $response;
}