check_sourcerecord.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Library of interface functions and constants for module jitsi
 *
 * All the core Moodle functions, neeeded to allow the module to work
 * integrated in Moodle should be placed here.
 *
 * All the jitsi specific functions, needed to implement all the module
 * logic, should go to locallib.php. This will help to save some memory when
 * Moodle is performing actions across all modules.
 *
 * @package    mod_jitsi
 * @copyright  2024 Sergio Comerón Sánchez-Paniagua <jitsi@sergiocomeron.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('../../config.php');
$jitsiid = required_param('jitsiId', PARAM_INT);

$jitsi = $DB->get_record('jitsi', ['id' => $jitsiid]);
$sourcerecord = $DB->get_record('jitsi_source_record', ['id' => $jitsi->sourcerecord]);

$response = new stdClass();
if ($sourcerecord) {
    $response->found = true;
    $response->link = $sourcerecord->link;
} else {
    $response->found = false;
}

echo json_encode($response);