private function send_invitations($sid, $contacts, $remaining = 0)
{
if (!empty($contacts)) {
$app = JFactory::getApplication();
$user = JFactory::getUser();
$model = JModelLegacy::getInstance('survey', 'CommunitySurveysModel');
$params = JComponentHelper::getParams(S_APP_NAME);
$itemid = CJFunctions::get_active_menu_id(true, 'index.php?option=' . S_APP_NAME . '&view=surveys');
$editor = $user->authorise('core.wysiwyg', S_APP_NAME) ? $params->get('default_editor', 'bbcode') : 'none';
$subject = $app->input->getString('invitation-subject', JText::_('TXT_INVITE_DEFAULT_SUB'));
$default_body = $editor == 'wysiwyg' ? str_replace("\n", '<br>', JText::_('TXT_INVITE_DEFAULT_BODY')) : JText::_('TXT_INVITE_DEFAULT_BODY');
$body = CJFunctions::get_clean_var('invitation-body', true, $default_body);
$body = CJFunctions::process_html($body, $editor == 'bbcode');
$messageid = $app->input->getInt('messageid', 0);
$count = count($contacts);
$keys = $model->create_survey_keys($sid, $count);
$survey = $model->get_survey_details($sid, 0, false, false, false);
if (!empty($keys) && count($keys) > 0) {
$emails = array();
foreach ($keys as $i => $key) {
$link = str_replace('/administrator/', '/', JRoute::_('index.php?option=' . S_APP_NAME . '&view=response&task=take_survey&key=' . $key . $itemid, false, -1));
$link = '<a href="' . $link . '">' . CjFunctions::escape($survey->title) . '</a>';
$email = new stdClass();
$email->name = $contacts[$i]->name;
$email->subid = 0;
$email->link = $link;
$email->email = $contacts[$i]->email;
$emails[] = $email;
$contacts[$i]->key = $key;
$i++;
}
$template = $params->get('mail-tpl-newanswer', 'mail-blue.tpl');
$sent = $model->add_messages_to_queue($sid, $subject, $body, $emails, $template, $messageid);
$model->update_key_userids($sid, $contacts);
if ($sent === false) {
echo json_encode(array('error' => JText::_('MSG_ERROR_PROCESSING') . (S_DEBUG_ENABLED ? $model->getError() : '')));
} else {
echo json_encode(array('message' => JText::sprintf('MSG_INVITATIONS_ADDED_TO_QUEUE', $sent), 'remaining' => $remaining));
}
} else {
echo json_encode(array('error' => JText::_('MSG_NO_CREDITS') . (S_DEBUG_ENABLED ? $model->getError() : '')));
}
} else {
echo json_encode(array('error' => JText::_('MSG_NO_CONTACTS_SELECTED')));
}
}
