<?php
defined('MOODLE_INTERNAL') || die();

require_once $CFG->dirroot . '/lib/externallib.php';

class local_lara_get_global_roles extends external_api
{
    /**
     * Parameter description for get_global_roles().
     *
     * @return external_function_parameters.
     */
    public static function get_global_roles_parameters()
    {
        return new external_function_parameters([]);
    }

    /**
     * Return roleinformation.
     *
     * This function returns a userid and the roleids of that user.
     *
     * @return array Array of arrays with role informations.
     */
    public static function get_global_roles()
    {
        global $DB;
        // require_once "$CFG->dirroot/group/lib.php";

        $roles = $DB->get_records('role_assignments', ['contextid' => '1']);

        print $roles;

        $roleIds = [];
        foreach ($roles as $role) {
            $cl = new stdClass();
            $cl->roleid = ($role->roleid);
            $cl->userid = ($role->userid);
            array_push($roleIds, $cl);
        }

        return $roleIds;
    }

    /**
     * Parameter description for get_global_roles().
     *
     * @return external_description
     */
    public static function get_global_roles_returns()
    {
        return new external_multiple_structure(
            new external_single_structure([
                'userid' => new external_value(PARAM_INT, 'user id'),
                'roleid' => new external_value(PARAM_INT, 'role id'),
            ]));
    }
}