if (isset($bigbluebuttonbn)) {
             bigbluebuttonbn_event_log(BIGBLUEBUTTON_EVENT_RECORDING_UNPUBLISHED, $bigbluebuttonbn, $context, $cm);
         }
         $callback_response['status'] = "true";
         $callback_response_data = json_encode($callback_response);
         echo "{$params['callback']}({$callback_response_data});";
     } else {
         error_log("ERROR: User not authorized to execute unpublish command");
         header("HTTP/1.0 401 Unauthorized. User not authorized to execute unpublish command");
     }
     break;
 case 'recording_delete':
     if ($bbbsession['managerecordings']) {
         //Retrieve the array of imported recordings
         $recordings_imported = bigbluebuttonbn_getRecordingsImportedArray($bbbsession['course']->id, isset($bbbsession['bigbluebuttonbn']) ? $bbbsession['bigbluebuttonbn']->id : NULL);
         $recordings_indexed = bigbluebuttonbn_index_recordings($recordings_imported);
         if (isset($recordings_indexed[$params['id']])) {
             // Execute unpublish on imported recording link
             bigbluebuttonbn_bbb_broker_do_delete_recording_imported($params['id'], $bbbsession['course']->id, $bbbsession['bigbluebuttonbn']->id);
         } else {
             // As the recordingid was not identified as imported recording link, execute delete on a real recording
             // First: Delete imported links associated to the recording
             $recordings_imported_all = bigbluebuttonbn_getRecordingsImportedAllInstances($params['id']);
             if (count($recordings_imported_all) > 0) {
                 foreach ($recordings_imported_all as $key => $record) {
                     // Execute delete
                     $DB->delete_records("bigbluebuttonbn_logs", array('id' => $key));
                 }
             }
             // Second: Execute the real delete
             $meeting_info = bigbluebuttonbn_bbb_broker_do_delete_recording($params['id']);
function bigbluebuttonbn_import_exlcude_recordings_already_imported($courseID, $bigbluebuttonbnID, $recordings)
{
    $recordings_already_imported = bigbluebuttonbn_getRecordingsImportedArray($courseID, $bigbluebuttonbnID);
    $recordings_already_imported_indexed = bigbluebuttonbn_index_recordings($recordings_already_imported);
    foreach ($recordings as $key => $recording) {
        if (isset($recordings_already_imported_indexed[$recording['recordID']])) {
            unset($recordings[$key]);
        }
    }
    return $recordings;
}
$PAGE->set_cacheable(false);
$PAGE->set_heading($course->fullname);
$PAGE->set_pagelayout('incourse');
$output .= $OUTPUT->header();
$output .= '<h4>Import recording links</h4>';
$options = bigbluebuttonbn_import_get_courses_for_select($bbbsession);
$selected = bigbluebuttonbn_selected_course($options, $tc);
if (empty($options)) {
    $output .= html_writer::tag('div', get_string('view_error_import_no_courses', 'bigbluebuttonbn'));
} else {
    $output .= html_writer::tag('div', html_writer::select($options, 'import_recording_links_select', $selected));
    $recordings = bigbluebuttonbn_getRecordingsArrayByCourse($selected, $bbbsession['endpoint'], $bbbsession['shared_secret']);
    //exclude the ones that are already imported
    $recordings = bigbluebuttonbn_import_exlcude_recordings_already_imported($bbbsession['course']->id, $bbbsession['bigbluebuttonbn']->id, $recordings);
    //store remaining recordings (indexed) in a session variable
    $SESSION->bigbluebuttonbn_importrecordings = bigbluebuttonbn_index_recordings($recordings);
    if (empty($recordings)) {
        $output .= html_writer::tag('div', get_string('view_error_import_no_recordings', 'bigbluebuttonbn'));
    } else {
        $output .= html_writer::tag('span', '', ['id' => 'import_recording_links_table', 'name' => 'import_recording_links_table']);
        $output .= bigbluebutton_output_recording_table($bbbsession, $recordings, ['importing']);
    }
    $output .= html_writer::start_tag('br');
    $output .= html_writer::tag('input', '', array('type' => 'button', 'value' => get_string('view_recording_button_return', 'bigbluebuttonbn'), 'onclick' => 'window.location=\'' . $CFG->wwwroot . '/mod/bigbluebuttonbn/view.php?id=' . $cm->id . '\''));
    $jsvars = array('bn' => $bn, 'tc' => $selected, 'locales' => bigbluebuttonbn_get_locales_for_ui());
    $PAGE->requires->data_for_js('bigbluebuttonbn', $jsvars);
    $jsmodule = array('name' => 'mod_bigbluebuttonbn', 'fullpath' => '/mod/bigbluebuttonbn/module.js', 'requires' => array('datasource-get', 'datasource-jsonschema', 'datasource-polling'));
    $PAGE->requires->js_init_call('M.mod_bigbluebuttonbn.import_view_init', array(), false, $jsmodule);
}
$output .= $OUTPUT->footer();
// finally, render the output