/** * Generates the free/busy export. * * @return Horde_iCalendar The iCal object. */ public function export() { /* Create the new iCalendar. */ $vCal = new Horde_iCalendar(); $vCal->setAttribute('PRODID', $this->_backend->getProductId()); $vCal->setAttribute('METHOD', 'PUBLISH'); /* Create the new vFreebusy component. */ $vFb =& Horde_iCalendar::newComponent('vfreebusy', $vCal); $vFb->setAttribute('ORGANIZER', $this->getOrganizerMail(), $this->getOrganizerName()); $vFb->setAttribute('DTSTAMP', $this->getDateStamp()); $vFb->setAttribute('DTSTART', $this->getStart()->timestamp()); $vFb->setAttribute('DTEND', $this->getEnd()->timestamp()); $url = $this->_backend->getUrl(); if (!empty($url)) { $vFb->setAttribute('URL', $this->getUrl()); } /* Add all the busy periods. */ foreach ($this->_resource->listEvents($this->getStart(), $this->getEnd()) as $event) { $status = $this->_status_map->map($event->getStatus()); $duration = $event->duration(); $extra = $event->getEncodedInformation(); foreach ($event->getBusyTimes($this->getStart(), $this->getEnd()) as $busy) { $vFb->addBusyPeriod($status, $busy, null, $duration, $extra); } } /* Remove the overlaps. */ $vFb->simplify(); /* Combine and return. */ $vCal->addComponent($vFb); return $vCal; }