VEvent.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\EmployeeTalk\Service;
 
final class VEvent
{
    private string $uid;
    private string $description;
    private string $summary;
    private int $sequence;
    private string $status;
    private string $organiserName;
    private string $organiserEmail;
    private string $attendeeName;
    private string $attendeeEmail;
    private int $startTime;
    private int $endTime;
    private bool $allDay;
    private string $url;
    private string $location;
 
    public function __construct(
        string $uid,
        string $description,
        string $summary,
        int $sequence,
        string $status,
        string $organiserName,
        string $organiserEmail,
        string $attendeeName,
        string $attendeeEmail,
        int $startTime,
        int $endTime,
        bool $allDay,
        string $url,
        string $location
    ) {
        $this->uid = $uid;
        $this->description = $description;
        $this->summary = $summary;
        $this->sequence = $sequence;
        $this->status = $status;
        $this->organiserName = $organiserName;
        $this->organiserEmail = $organiserEmail;
        $this->attendeeName = $attendeeName;
        $this->attendeeEmail = $attendeeEmail;
        $this->startTime = $startTime;
        $this->endTime = $endTime;
        $this->allDay = $allDay;
        $this->url = $url;
        $this->location = $location;
    }
 
    private function getStartAndEnd(): string
    {
        // creating DateTimes from Unix timestamps automatically sets the initial timezone to UTC
        $start = new \DateTimeImmutable('@' . $this->startTime);
        $start = $start->setTimezone(new \DateTimeZone('Europe/Paris'));
        $end = new \DateTimeImmutable('@' . $this->endTime);
        $end = $end->setTimezone(new \DateTimeZone('Europe/Paris'));
 
        if ($this->allDay) {
            return  'DTSTART;TZID=Europe/Paris;VALUE=DATE:' . $start->format('Ymd') . "\r\n" .
                    'DTEND;TZID=Europe/Paris;VALUE=DATE:' . $end->format('Ymd') . "\r\n" .
                    "X-MICROSOFT-CDO-ALLDAYEVENT: TRUE\r\n";
        } else {
            return  'DTSTART;TZID=Europe/Paris:' . $start->format('Ymd\THis') . "\r\n" .
                    'DTEND;TZID=Europe/Paris:' . $end->format('Ymd\THis') . "\r\n";
        }
    }
 
    public function render(): string
    {
        return 'BEGIN:VEVENT' . "\r\n" .
        'UID: ' . $this->uid . "\r\n" .
        'DESCRIPTION:' . $this->description . "\r\n" .
        $this->getStartAndEnd() .
        'DTSTAMP:' . date("Ymd\THis") . "\r\n" .
        'LAST-MODIFIED:' . date("Ymd\THis") . "\r\n" .
        'ORGANIZER;CN="' . $this->organiserName . '":MAILTO:' . $this->organiserEmail . "\r\n" .
        'ATTENDEE;CN="' . $this->attendeeName . '";ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:' . $this->attendeeEmail . "\r\n" .
        'SUMMARY:' . $this->summary . "\r\n" .
        'LOCATION:' . $this->location . "\r\n" .
        'SEQUENCE:' . $this->sequence . "\r\n" .
        "PRIORITY:5\r\n" .
        'STATUS:' . $this->status . "\r\n" .
        "TRANSP:OPAQUE\r\n" .
        "X-MICROSOFT-CDO-BUSYSTATUS:BUSY\r\n" .
        'CLASS:PUBLIC' . "\r\n" .
        "X-MICROSOFT-DISALLOW-COUNTER:TRUE\r\n" .
        //'URL:'. $this->url . "\r\n" .
 
        'BEGIN:VALARM' . "\r\n" .
        'DESCRIPTION:' . $this->summary . "\r\n" .
        'TRIGGER:-PT15M' . "\r\n" .
        'ACTION:DISPLAY' . "\r\n" .
        'END:VALARM' . "\r\n" .
 
        'END:VEVENT' . "\r\n";
    }
}