Proyectos de Subversion Moodle

<?php

// This file is part of the Zoom plugin for 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/>.

/**

 * Task: update_meetings

 *

 * @package    mod_zoom

 * @copyright  2018 UC Regents

 * @author     Rohan Khajuria

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

namespace mod_zoom\task;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->libdir . '/modinfolib.php');

require_once($CFG->dirroot . '/mod/zoom/lib.php');

require_once($CFG->dirroot . '/mod/zoom/locallib.php');

use core\task\scheduled_task;

use mod_zoom\not_found_exception;

use moodle_exception;

use moodle_url;

/**

 * Scheduled task to sychronize meeting data.

 */

class update_meetings extends scheduled_task {

    /**

     * Returns name of task.

     *

     * @return string

     */

    public function get_name() {

        return get_string('updatemeetings', 'mod_zoom');

    }

    /**

     * Updates meetings that are not expired.

     *

     * @return boolean

     */

    public function execute() {

        global $DB;

        try {

            $service = zoom_webservice();

        } catch (moodle_exception $exception) {

            mtrace('Skipping task - ', $exception->getMessage());

            return;

        }

        // Show trace message.

        mtrace('Starting to process existing Zoom meeting activities ...');

        // Check all meetings, in case they were deleted/changed on Zoom.

        $zoomstoupdate = $DB->get_records('zoom', ['exists_on_zoom' => ZOOM_MEETING_EXISTS]);

        $courseidstoupdate = [];

        $calendarfields = ['intro', 'introformat', 'start_time', 'duration', 'recurring'];

        foreach ($zoomstoupdate as $zoom) {

            // Show trace message.

            mtrace('Processing next Zoom meeting activity ...');

            mtrace('  Zoom meeting ID: ' . $zoom->meeting_id);

            mtrace('  Zoom meeting title: ' . $zoom->name);

            $zoomactivityurl = new moodle_url('/mod/zoom/view.php', ['n' => $zoom->id]);

            mtrace('  Zoom meeting activity URL: ' . $zoomactivityurl->out());

            mtrace('  Moodle course ID: ' . $zoom->course);

            $gotinfo = false;

            try {

                $response = $service->get_meeting_webinar_info($zoom->meeting_id, $zoom->webinar);

                $gotinfo = true;

            } catch (not_found_exception $error) {

                $zoom->exists_on_zoom = ZOOM_MEETING_EXPIRED;

                $DB->update_record('zoom', $zoom);

                // Show trace message.

                mtrace('  => Marked Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id .

                        ' as not existing anymore on Zoom');

            } catch (moodle_exception $error) {

                // Show trace message.

                mtrace('  !! Error updating Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id . ': ' . $error);

            }

            if ($gotinfo) {

                $changed = false;

                $newzoom = populate_zoom_from_response($zoom, $response);

                // Iterate over all Zoom meeting fields.

                foreach ((array) $zoom as $field => $value) {

                    // The start_url has a parameter that always changes, so it doesn't really count as a change.

                    // Similarly, the timemodified parameter does not count as change if nothing else has changed.

                    if ($field === 'start_url' || $field === 'timemodified') {

                        continue;

                    }

                    // For doing a better comparison and for easing mtrace() output, convert booleans from the Zoom response

                    // to strings like they are stored in the Moodle database for the existing activity.

                    $newfieldvalue = $newzoom->$field;

                    if (is_bool($newfieldvalue)) {

                        $newfieldvalue = $newfieldvalue ? '1' : '0';

                    }

                    // If the field value has changed.

                    if ($newfieldvalue != $value) {

                        // Show trace message.

                        mtrace('  => Field "' . $field . '" has changed from "' . $value . '" to "' . $newfieldvalue . '"');

                        // Remember this meeting as changed.

                        $changed = true;

                    }

                }

                if ($changed) {

                    $newzoom->timemodified = time();

                    $DB->update_record('zoom', $newzoom);

                    // Show trace message.

                    mtrace('  => Updated Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id);

                    // If the topic/title was changed, mark this course for cache clearing.

                    if ($zoom->name != $newzoom->name) {

                        $courseidstoupdate[] = $newzoom->course;

                    }

                } else {

                    // Show trace message.

                    mtrace('  => Skipped Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id . ' as unchanged');

                }

                // Update the calendar events.

                if (!$zoom->recurring && $changed) {

                    // Check if calendar needs updating.

                    foreach ($calendarfields as $field) {

                        if ($zoom->$field != $newzoom->$field) {

                            zoom_calendar_item_update($newzoom);

                            // Show trace message.

                            mtrace('  => Updated calendar item for Zoom meeting ID ' . $zoom->meeting_id);

                            break;

                        }

                    }

                } else if ($zoom->recurring) {

                    // Show trace message.

                    mtrace('  => Updated calendar items for recurring Zoom meeting ID ' . $zoom->meeting_id);

                    zoom_calendar_item_update($newzoom);

                }

                // Update tracking fields for meeting.

                mtrace('  => Updated tracking fields for Zoom meeting ID ' . $zoom->meeting_id);

                zoom_sync_meeting_tracking_fields($zoom->id, $response->tracking_fields ?? []);

            }

        }

        // Show trace message.

        mtrace('Finished to process existing Zoom meetings');

        // Show trace message.

        mtrace('Starting to rebuild course caches ...');

        // Clear caches for meetings whose topic/title changed (and rebuild as needed).

        foreach ($courseidstoupdate as $courseid) {

            rebuild_course_cache($courseid, true);

        }

        // Show trace message.

        mtrace('Finished to rebuild course caches');

        return true;

    }

}