<?php
namespace Sabre\VObject\Property\ICalendar;
use DateTimeInterface;
use DateTimeZone;
use Sabre\VObject\DateTimeParser;
use Sabre\VObject\InvalidDataException;
use Sabre\VObject\Property;
use Sabre\VObject\TimeZoneUtil;
/**
* DateTime property.
*
* This object represents DATE-TIME values, as defined here:
*
* http://tools.ietf.org/html/rfc5545#section-3.3.4
*
* This particular object has a bit of hackish magic that it may also in some
* cases represent a DATE value. This is because it's a common usecase to be
* able to change a DATE-TIME into a DATE.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class DateTime extends Property {
/**
* In case this is a multi-value property. This string will be used as a
* delimiter.
*
* @var string|null
*/
public $delimiter = ',';
/**
* Sets a multi-valued property.
*
* You may also specify DateTime objects here.
*
* @param array $parts
*
* @return void
*/
function setParts(array $parts) {
if (isset($parts[0]) && $parts[0] instanceof DateTimeInterface) {
$this->setDateTimes($parts);
} else {
parent::setParts($parts);
}
}
/**
* Updates the current value.
*
* This may be either a single, or multiple strings in an array.
*
* Instead of strings, you may also use DateTime here.
*
* @param string|array|DateTimeInterface $value
*
* @return void
*/
function setValue($value) {
if (is_array($value) && isset($value[0]) && $value[0] instanceof DateTimeInterface) {
$this->setDateTimes($value);
} elseif ($value instanceof DateTimeInterface) {
$this->setDateTimes([$value]);
} else {
parent::setValue($value);
}
}
/**
* Sets a raw value coming from a mimedir (iCalendar/vCard) file.
*
* This has been 'unfolded', so only 1 line will be passed. Unescaping is
* not yet done, but parameters are not included.
*
* @param string $val
*
* @return void
*/
function setRawMimeDirValue($val) {
$this->setValue(explode($this->delimiter, $val));
}
/**
* Returns a raw mime-dir representation of the value.
*
* @return string
*/
function getRawMimeDirValue() {
return implode($this->delimiter, $this->getParts());
}
/**
* Returns true if this is a DATE-TIME value, false if it's a DATE.
*
* @return bool
*/
function hasTime() {
return strtoupper((string)$this['VALUE']) !== 'DATE';
}
/**
* Returns true if this is a floating DATE or DATE-TIME.
*
* Note that DATE is always floating.
*/
function isFloating() {
return
!$this->hasTime() ||
(
!isset($this['TZID']) &&
strpos($this->getValue(), 'Z') === false
);
}
/**
* Returns a date-time value.
*
* Note that if this property contained more than 1 date-time, only the
* first will be returned. To get an array with multiple values, call
* getDateTimes.
*
* If no timezone information is known, because it's either an all-day
* property or floating time, we will use the DateTimeZone argument to
* figure out the exact date.
*
* @param DateTimeZone $timeZone
*
* @return DateTimeImmutable
*/
function getDateTime(DateTimeZone $timeZone = null) {
$dt = $this->getDateTimes($timeZone);
if (!$dt) return;
return $dt[0];
}
/**
* Returns multiple date-time values.
*
* If no timezone information is known, because it's either an all-day
* property or floating time, we will use the DateTimeZone argument to
* figure out the exact date.
*
* @param DateTimeZone $timeZone
*
* @return DateTimeImmutable[]
* @return \DateTime[]
*/
function getDateTimes(DateTimeZone $timeZone = null) {
// Does the property have a TZID?
$tzid = $this['TZID'];
if ($tzid) {
$timeZone = TimeZoneUtil::getTimeZone((string)$tzid, $this->root);
}
$dts = [];
foreach ($this->getParts() as $part) {
$dts[] = DateTimeParser::parse($part, $timeZone);
}
return $dts;
}
/**
* Sets the property as a DateTime object.
*
* @param DateTimeInterface $dt
* @param bool isFloating If set to true, timezones will be ignored.
*
* @return void
*/
function setDateTime(DateTimeInterface $dt, $isFloating = false) {
$this->setDateTimes([$dt], $isFloating);
}
/**
* Sets the property as multiple date-time objects.
*
* The first value will be used as a reference for the timezones, and all
* the otehr values will be adjusted for that timezone
*
* @param DateTimeInterface[] $dt
* @param bool isFloating If set to true, timezones will be ignored.
*
* @return void
*/
function setDateTimes(array $dt, $isFloating = false) {
$values = [];
if ($this->hasTime()) {
$tz = null;
$isUtc = false;
foreach ($dt as $d) {
if ($isFloating) {
$values[] = $d->format('Ymd\\THis');
continue;
}
if (is_null($tz)) {
$tz = $d->getTimeZone();
$isUtc = in_array($tz->getName(), ['UTC', 'GMT', 'Z', '+00:00']);
if (!$isUtc) {
$this->offsetSet('TZID', $tz->getName());
}
} else {
$d = $d->setTimeZone($tz);
}
if ($isUtc) {
$values[] = $d->format('Ymd\\THis\\Z');
} else {
$values[] = $d->format('Ymd\\THis');
}
}
if ($isUtc || $isFloating) {
$this->offsetUnset('TZID');
}
} else {
foreach ($dt as $d) {
$values[] = $d->format('Ymd');
}
$this->offsetUnset('TZID');
}
$this->value = $values;
}
/**
* Returns the type of value.
*
* This corresponds to the VALUE= parameter. Every property also has a
* 'default' valueType.
*
* @return string
*/
function getValueType() {
return $this->hasTime() ? 'DATE-TIME' : 'DATE';
}
/**
* Returns the value, in the format it should be encoded for JSON.
*
* This method must always return an array.
*
* @return array
*/
function getJsonValue() {
$dts = $this->getDateTimes();
$hasTime = $this->hasTime();
$isFloating = $this->isFloating();
$tz = $dts[0]->getTimeZone();
$isUtc = $isFloating ? false : in_array($tz->getName(), ['UTC', 'GMT', 'Z']);
return array_map(
function(DateTimeInterface $dt) use ($hasTime, $isUtc) {
if ($hasTime) {
return $dt->format('Y-m-d\\TH:i:s') . ($isUtc ? 'Z' : '');
} else {
return $dt->format('Y-m-d');
}
},
$dts
);
}
/**
* Sets the json value, as it would appear in a jCard or jCal object.
*
* The value must always be an array.
*
* @param array $value
*
* @return void
*/
function setJsonValue(array $value) {
// dates and times in jCal have one difference to dates and times in
// iCalendar. In jCal date-parts are separated by dashes, and
// time-parts are separated by colons. It makes sense to just remove
// those.
$this->setValue(
array_map(
function($item) {
return strtr($item, [':' => '', '-' => '']);
},
$value
)
);
}
/**
* We need to intercept offsetSet, because it may be used to alter the
* VALUE from DATE-TIME to DATE or vice-versa.
*
* @param string $name
* @param mixed $value
*
* @return void
*/
function offsetSet($name, $value) {
parent::offsetSet($name, $value);
if (strtoupper($name) !== 'VALUE') {
return;
}
// This will ensure that dates are correctly encoded.
$this->setDateTimes($this->getDateTimes());
}
/**
* Validates the node for correctness.
*
* The following options are supported:
* Node::REPAIR - May attempt to automatically repair the problem.
*
* This method returns an array with detected problems.
* Every element has the following properties:
*
* * level - problem level.
* * message - A human-readable string describing the issue.
* * node - A reference to the problematic node.
*
* The level means:
* 1 - The issue was repaired (only happens if REPAIR was turned on)
* 2 - An inconsequential issue
* 3 - A severe issue.
*
* @param int $options
*
* @return array
*/
function validate($options = 0) {
$messages = parent::validate($options);
$valueType = $this->getValueType();
$values = $this->getParts();
try {
foreach ($values as $value) {
switch ($valueType) {
case 'DATE' :
DateTimeParser::parseDate($value);
break;
case 'DATE-TIME' :
DateTimeParser::parseDateTime($value);
break;
}
}
} catch (InvalidDataException $e) {
$messages[] = [
'level' => 3,
'message' => 'The supplied value (' . $value . ') is not a correct ' . $valueType,
'node' => $this,
];
}
return $messages;
}
}
