<?php
/**
 * Prevent booked Cursus dates from being accidentally deleted in Agenda
 *
 * @var modX $modx
 * @var array $scriptProperties
 */

use TreehillStudio\Agenda\Agenda;

$eventName = $modx->event->name;

switch ($eventName) {
    case 'OnAgendaBeforeRemove':
        $corePath = $modx->getOption('agenda.core_path', null, $modx->getOption('core_path') . 'components/agenda/');
        $agenda = $modx->getService('agenda', 'Agenda', $corePath . 'model/agenda/', [
            'core_path' => $corePath
        ]);

        $eventId = $scriptProperties['id'];
        $className = $scriptProperties['className'];

        if (!$modx->loadClass('agenda.AgendaEvents', $agenda->getOption('modelPath'))) {
            $modx->log(xPDO::LOG_LEVEL_ERROR, 'Could not load AgendaEvents class!', '', 'AgendaCursusPreventRemove');
            return;
        }
        if (!$modx->loadClass('agenda.AgendaEventDates', $agenda->getOption('modelPath'))) {
            $modx->log(xPDO::LOG_LEVEL_ERROR, 'Could not load AgendaEventDates class!', '', 'AgendaCursusPreventRemove');
            return;
        }

        if ($eventId) {
            if ($className == 'AgendaEvents') {
                $c = $modx->newQuery('CursusEventParticipants');
                $c->leftJoin('AgendaEventDates', 'AgendaEventDates', 'CursusEventParticipants.event_id = AgendaEventDates.id');
                $c->where(['AgendaEventDates.event_id' => $eventId]);
                $count = $this->modx->getCount('CursusEventParticipants', $c);
                if ($count > 0) {
                    $modx->event->_output = 'There are already repeating events booked for this event. Therefore, it is not possible to delete the event.';
                }
            } elseif ($className == 'AgendaEventDates') {
                $participants = $modx->getObject('CursusEventParticipants', ['event_id' => $eventId]);
                if ($participants) {
                    $modx->event->_output = 'The event repeat has already been booked. Therefore, it is not possible to delete it.';
                }
            }
        }
        break;
}
return;