/**
* Returns a SingleCalendar object with all events of the given owner or
* SingleCalendar object for one day set by timestamp.
*
* @param string|SingleCalendar $owner The user id of calendar owner or a calendar object.
* @param int $time A unix timestamp of this day.
* @param string $user_id The id of the user who gets access to the calendar (optional, default current user)
* @param array $restrictions An array with key value pairs of properties to filter the result (optional).
* @param array $class_names Array of class names. The class must implement Event (optional).
* @return \SingleCalendar Calendar Object with all events of given day.
*/
public static function getDayCalendar($owner, $time, $user_id = null, $restrictions = null, $class_names = null)
{
$user_id = $user_id ?: $GLOBALS['user']->id;
if (!is_array($class_names)) {
$class_names = array('CalendarEvent', 'CourseEvent', 'CourseCancelledEvent', 'CourseMarkedEvent');
}
$day = date('Y-m-d-', $time);
$start = DateTime::createFromFormat('Y-m-d-H:i:s', $day . '00:00:00');
$end = DateTime::createFromFormat('Y-m-d-H:i:s', $day . '23:59:59');
if (is_object($owner)) {
if ($owner instanceof SingleCalendar) {
$calendar = $owner;
$calendar->setStart($start->format('U'))->setEnd($end->format('U'));
} else {
throw new InvalidArgumentException('The owner must be a user id or an object of type SingleCalendar.');
}
} else {
$calendar = new SingleCalendar($owner, $start->format('U'), $end->format('U'));
}
$calendar->getEvents($class_names)->sortEvents();
$dow = date('w', $calendar->getStart());
$month = date('n', $calendar->getStart());
$year = date('Y', $calendar->getStart());
$events_created = array();
foreach ($calendar->events as $event) {
if (!$calendar->havePermission(Calendar::PERMISSION_READABLE, $user_id) && $event->getAccessibility() != 'PUBLIC') {
continue;
}
if (!$event->havePermission(Event::PERMISSION_CONFIDENTIAL, $user_id)) {
continue;
}
if (!SingleCalendar::checkRestriction($event, $restrictions)) {
continue;
}
$properties = $event->getProperties();
$ts = mktime(12, 0, 0, date('n', $calendar->start), date('j', $calendar->start), date('Y', $calendar->start));
$rep = $properties['RRULE'];
$duration = (int) ((mktime(12, 0, 0, date('n', $properties['DTEND']), date('j', $properties['DTEND']), date('Y', $properties['DTEND'])) - mktime(12, 0, 0, date('n', $properties['DTSTART']), date('j', $properties['DTSTART']), date('Y', $properties['DTSTART']))) / 86400);
// single events or first event
if ($properties['DTSTART'] >= $calendar->getStart() && $properties['DTEND'] <= $calendar->getEnd()) {
self::createDayViewEvent($event, $properties['DTSTART'], $properties['DTEND'], $calendar->getStart(), $calendar->getEnd(), $events_created);
} elseif ($properties['DTSTART'] >= $calendar->getStart() && $properties['DTSTART'] <= $calendar->getEnd()) {
self::createDayViewEvent($event, $properties['DTSTART'], $properties['DTEND'], $calendar->getStart(), $calendar->getEnd(), $events_created);
} elseif ($properties['DTSTART'] < $calendar->getStart() && $properties['DTEND'] > $calendar->getEnd()) {
self::createDayViewEvent($event, $properties['DTSTART'], $properties['DTEND'], $calendar->getStart(), $calendar->getEnd(), $events_created);
} elseif ($properties['DTEND'] > $calendar->getStart() && $properties['DTEND'] <= $calendar->getEnd()) {
self::createDayViewEvent($event, $properties['DTSTART'], $properties['DTEND'], $calendar->getStart(), $calendar->getEnd(), $events_created);
}
switch ($rep['rtype']) {
case 'DAILY':
/*
if ($calendar->getEnd() > $rep['expire'] + $duration * 86400) {
continue;
}
*
*/
if ($end > $rep['expire'] + $duration * 86400) {
continue;
}
$ts = $ts + date('I', $rep['ts']) * 3600;
$pos = ($ts - $rep['ts']) / 86400 % $rep['linterval'];
$start = $ts - $pos * 86400;
$end = $start + $duration * 86400;
self::createDayViewEvent($event, $start, $end, $calendar->getStart(), $calendar->getEnd(), $events_created);
break;
case 'WEEKLY':
$rep['ts'] = $rep['ts'] + (date('I', $rep['ts']) - date('I', $ts)) * 3600;
for ($i = 0; $i < strlen($rep['wdays']); $i++) {
$pos = (($ts - $dow * 86400 - $rep['ts']) / 86400 - ($rep['wdays'][$i] - 1) + $dow) % ($rep['linterval'] * 7);
$start = $ts - $pos * 86400;
$end = $start + $duration * 86400;
if ($start >= $properties['DTSTART'] && $start <= $ts && $end >= $ts) {
self::createDayViewEvent($event, $start, $end, $calendar->getStart(), $calendar->getEnd(), $events_created);
}
}
break;
case 'MONTHLY':
if ($rep['day']) {
$lwst = mktime(12, 0, 0, $month - (($year - date('Y', $rep['ts'])) * 12 + ($month - date('n', $rep['ts']))) % $rep['linterval'], $rep['day'], $year);
$hgst = $lwst + $duration * 86400;
self::createDayViewEvent($event, $lwst, $hgst, $calendar->getStart(), $calendar->getEnd(), $events_created);
break;
}
if ($rep['sinterval']) {
$mon = $month - $rep['linterval'];
do {
$lwst = mktime(12, 0, 0, $mon - (($year - date('Y', $rep['ts'])) * 12 + ($mon - date('n', $rep['ts']))) % $rep['linterval'], 1, $year) + ($rep['sinterval'] - 1) * 604800;
$aday = strftime('%u', $lwst);
$lwst -= ($aday - $rep['wdays']) * 86400;
if ($rep['sinterval'] == 5) {
if (date('j', $lwst) < 10) {
$lwst -= 604800;
}
if (date('n', $lwst) == date('n', $lwst + 604800)) {
$lwst += 604800;
}
} else {
if ($aday > $rep['wdays']) {
$lwst += 604800;
}
}
$hgst = $lwst + $duration * 86400;
if ($ts >= $lwst && $ts <= $hgst) {
self::createDayViewEvent($event, $lwst, $hgst, $calendar->getStart(), $calendar->getEnd(), $events_created);
}
$mon += $rep['linterval'];
} while ($lwst < $ts);
}
break;
case 'YEARLY':
if ($ts < $rep['ts']) {
break;
}
if ($rep['day']) {
if (date('Y', $properties['DTEND']) - date('Y', $properties['DTSTART'])) {
$lwst = mktime(12, 0, 0, $rep['month'], $rep['day'], $year - ($year - date('Y', $rep['ts'])) % $rep['linterval'] - $rep['linterval']);
$hgst = $lwst + 86400 * $duration;
if ($ts >= $lwst && $ts <= $hgst) {
self::createDayViewEvent($event, $lwst, $hgst, $calendar->getStart(), $calendar->getEnd(), $events_created);
break;
}
}
$lwst = mktime(12, 0, 0, $rep['month'], $rep['day'], $year - ($year - date('Y', $rep['ts'])) % $rep['linterval']);
$hgst = $lwst + 86400 * $duration;
self::createDayViewEvent($event, $lwst, $hgst, $calendar->getStart(), $calendar->getEnd(), $events_created);
break;
}
$ayear = $year - 1;
do {
if ($rep['sinterval']) {
$lwst = mktime(12, 0, 0, $rep['month'], 1 + ($rep['sinterval'] - 1) * 7, $ayear);
$aday = strftime('%u', $lwst);
$lwst -= ($aday - $rep['wdays']) * 86400;
if ($rep['sinterval'] == 5) {
if (date('j', $lwst) < 10) {
$lwst -= 604800;
}
if (date('n', $lwst) == date('n', $lwst + 604800)) {
$lwst += 604800;
}
} elseif ($aday > $rep['wdays']) {
$lwst += 604800;
}
$ayear++;
$hgst = $lwst + $duration * 86400;
if ($ts >= $lwst && $ts <= $hgst) {
self::createDayViewEvent($event, $lwst, $hgst, $calendar->getStart(), $calendar->getEnd(), $events_created);
}
}
} while ($lwst < $ts);
}
}
$calendar->events->exchangeArray(array_values($events_created));
return $calendar;
}
