DateTime.php

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<?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;
 
class DateTime extends Property {
 
    public $delimiter = ',';
 
    function setParts(array $parts) {
 
        if (isset($parts[0]) && $parts[0] instanceof DateTimeInterface) {
            $this->setDateTimes($parts);
        } else {
            parent::setParts($parts);
        }
 
    }
 
    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);
        }
 
    }
 
    function setRawMimeDirValue($val) {
 
        $this->setValue(explode($this->delimiter, $val));
 
    }
 
    function getRawMimeDirValue() {
 
        return implode($this->delimiter, $this->getParts());
 
    }
 
    function hasTime() {
 
        return strtoupper((string)$this['VALUE']) !== 'DATE';
 
    }
 
    function isFloating() {
 
        return
            !$this->hasTime() ||
            (
                !isset($this['TZID']) &&
                strpos($this->getValue(), 'Z') === false
            );
 
    }
 
    function getDateTime(DateTimeZone $timeZone = null) {
 
        $dt = $this->getDateTimes($timeZone);
        if (!$dt) return;
 
        return $dt[0];
 
    }
 
    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;
 
    }
 
    function setDateTime(DateTimeInterface $dt, $isFloating = false) {
 
        $this->setDateTimes([$dt], $isFloating);
 
    }
 
    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;
 
    }
 
    function getValueType() {
 
        return $this->hasTime() ? 'DATE-TIME' : 'DATE';
 
    }
 
    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
        );
 
    }
 
    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
            )
        );
 
    }
 
    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());
 
    }
 
    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;
 
    }
}