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<?php
namespace Sabre\VObject;
use Sabre\VObject\Component\VCalendar;
/**
* This class generates birthday calendars.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Dominik Tobschall (http://tobschall.de/)
* @license http://sabre.io/license/ Modified BSD License
*/
class BirthdayCalendarGenerator {
/**
* Input objects.
*
* @var array
*/
protected $objects = [];
/**
* Default year.
* Used for dates without a year.
*/
const DEFAULT_YEAR = 2000;
/**
* Output format for the SUMMARY.
*
* @var string
*/
protected $format = '%1$s\'s Birthday';
/**
* Creates the generator.
*
* Check the setTimeRange and setObjects methods for details about the
* arguments.
*
* @param mixed $objects
*/
function __construct($objects = null) {
if ($objects) {
$this->setObjects($objects);
}
}
/**
* Sets the input objects.
*
* You must either supply a vCard as a string or as a Component/VCard object.
* It's also possible to supply an array of strings or objects.
*
* @param mixed $objects
*
* @return void
*/
function setObjects($objects) {
if (!is_array($objects)) {
$objects = [$objects];
}
$this->objects = [];
foreach ($objects as $object) {
if (is_string($object)) {
$vObj = Reader::read($object);
if (!$vObj instanceof Component\VCard) {
throw new \InvalidArgumentException('String could not be parsed as \\Sabre\\VObject\\Component\\VCard by setObjects');
}
$this->objects[] = $vObj;
} elseif ($object instanceof Component\VCard) {
$this->objects[] = $object;
} else {
throw new \InvalidArgumentException('You can only pass strings or \\Sabre\\VObject\\Component\\VCard arguments to setObjects');
}
}
}
/**
* Sets the output format for the SUMMARY
*
* @param string $format
*
* @return void
*/
function setFormat($format) {
$this->format = $format;
}
/**
* Parses the input data and returns a VCALENDAR.
*
* @return Component/VCalendar
*/
function getResult() {
$calendar = new VCalendar();
foreach ($this->objects as $object) {
// Skip if there is no BDAY property.
if (!$object->select('BDAY')) {
continue;
}
// We've seen clients (ez-vcard) putting "BDAY:" properties
// without a value into vCards. If we come across those, we'll
// skip them.
if (empty($object->BDAY->getValue())) {
continue;
}
// We're always converting to vCard 4.0 so we can rely on the
// VCardConverter handling the X-APPLE-OMIT-YEAR property for us.
$object = $object->convert(Document::VCARD40);
// Skip if the card has no FN property.
if (!isset($object->FN)) {
continue;
}
// Skip if the BDAY property is not of the right type.
if (!$object->BDAY instanceof Property\VCard\DateAndOrTime) {
continue;
}
// Skip if we can't parse the BDAY value.
try {
$dateParts = DateTimeParser::parseVCardDateTime($object->BDAY->getValue());
} catch (InvalidDataException $e) {
continue;
}
// Set a year if it's not set.
$unknownYear = false;
if (!$dateParts['year']) {
$object->BDAY = self::DEFAULT_YEAR . '-' . $dateParts['month'] . '-' . $dateParts['date'];
$unknownYear = true;
}
// Create event.
$event = $calendar->add('VEVENT', [
'SUMMARY' => sprintf($this->format, $object->FN->getValue()),
'DTSTART' => new \DateTime($object->BDAY->getValue()),
'RRULE' => 'FREQ=YEARLY',
'TRANSP' => 'TRANSPARENT',
]);
// add VALUE=date
$event->DTSTART['VALUE'] = 'DATE';
// Add X-SABRE-BDAY property.
if ($unknownYear) {
$event->add('X-SABRE-BDAY', 'BDAY', [
'X-SABRE-VCARD-UID' => $object->UID->getValue(),
'X-SABRE-VCARD-FN' => $object->FN->getValue(),
'X-SABRE-OMIT-YEAR' => self::DEFAULT_YEAR,
]);
} else {
$event->add('X-SABRE-BDAY', 'BDAY', [
'X-SABRE-VCARD-UID' => $object->UID->getValue(),
'X-SABRE-VCARD-FN' => $object->FN->getValue(),
]);
}
}
return $calendar;
}
}
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