<?php

Prado::using('Application.facades.Facade');
Prado::using('Application.dto.CalendarGroupDTO');
Prado::using('Application.model.Category');
Prado::using('Application.model.UserPreference');
Prado::using('Application.user.DbUser');

class CalendarFacade extends Facade {

    private function _getCategoriesForCalendars(array $calendars) {
        return Category::finder()->findAllByPks(
            array_map(
                function($calendar) {
                    return $calendar->CategoryID;
                },
                $calendars
            )
        );
    }

    public function getPreferenceList(DbUser $user) {
        $calendars = $user->getCalendarPreference();
        if ($calendars) {
            $categories = array_map(
                function($category) use($calendars) {
                    $dto = new CalendarGroupDTO();
                    $dto->loadRecord($category, $calendars);
                    return $dto;
                },
                $this->_getCategoriesForCalendars($calendars)
            );
            usort($categories, ['CalendarGroupDTO', '__compare']);
            return $categories;
        }
        return [];
    }

    public function removeFromPreference(DbUser $user, $calendarID) {
        if (!$user->IsGuest) {
            $preferenceRecord = UserPreference::finder()->find(
                '_user = ? AND _calendar = ?',
                $user->DbRecord->ID,
                $calendarID
            );
            $preferenceRecord->delete();
        }
    }

}

?>