<?php
  /**
   * Copyright (c) 2011 Bart Visscher <bartv@thisnet.nl>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  OCP\JSON::checkLoggedIn();
  OCP\JSON::callCheck();
  
  $id = $_POST['id'];
  
  $vcalendar = OC_Calendar_App::getVCalendar($id, false, false);
  $vevent = $vcalendar->VEVENT;
  
  $allday = $_POST['allDay'];
  $delta = new DateInterval('P0D');
  $delta->d = $_POST['dayDelta'];
  $delta->i = $_POST['minuteDelta'];
  OC_Calendar_App::isNotModified($vevent, $_POST['lastmodified']);
  
  $dtstart = $vevent->DTSTART;
  $dtend = OC_Calendar_Object::getDTEndFromVEvent($vevent);
  $start_type = $dtstart->getDateType();
  $end_type = $dtend->getDateType();
  if ($allday && $start_type != Sabre\VObject\Property\DateTime::DATE) {
  	$start_type = $end_type = Sabre\VObject\Property\DateTime::DATE;
  	$dtend->setDateTime($dtend->getDateTime()->modify('+1 day'), $end_type);
  }
  if (!$allday && $start_type == Sabre\VObject\Property\DateTime::DATE) {
  	$start_type = $end_type = Sabre\VObject\Property\DateTime::LOCALTZ;
  }
  $dtstart->setDateTime($dtstart->getDateTime()->add($delta), $start_type);
  $dtend->setDateTime($dtend->getDateTime()->add($delta), $end_type);
  unset($vevent->DURATION);
  
  $vevent->setDateTime('LAST-MODIFIED', 'now', Sabre\VObject\Property\DateTime::UTC);
  $vevent->setDateTime('DTSTAMP', 'now', Sabre\VObject\Property\DateTime::UTC);
  
  try {
  	OC_Calendar_Object::edit($id, $vcalendar->serialize());
  } catch(Exception $e) {
  	OCP\JSON::error(array('message'=>$e->getMessage()));
  	exit;
  }
  
  $lastmodified = $vevent->__get('LAST-MODIFIED')->getDateTime();
  OCP\JSON::success(array('lastmodified'=>(int)$lastmodified->format('U')));