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<?php
/**
*----------------------------------------------------------------------------
* iC Library Library by Jooml!C, for Joomla!
*----------------------------------------------------------------------------
* @version 2.0.0 2022-02-18
*
* @package iC Library
* @subpackage Library
* @link https://www.joomlic.com
*
* @author Cyril Rezé
* @copyright (c) 2013-2024 Cyril Rezé / iCagenda. All rights reserved.
* @license GNU General Public License version 3 or later; see LICENSE.txt
*
* @since 1.5
*----------------------------------------------------------------------------
*/
namespace iClib\Vendor;
\defined('_JEXEC') or die;
require_once JPATH_LIBRARIES . '/ic_library/Vendor/Icalcreator/autoload.php';
use iClib\Date\Date as iCDate;
use Joomla\CMS\Factory;
use Joomla\CMS\Filter\OutputFilter;
use Joomla\CMS\Uri\Uri;
use Kigkonsult\Icalcreator\Vcalendar;
/**
* class iCalcreator
*/
class IcalcreatorLibrary
{
/**
* Function to create and return Calendar ICS file
*
* @param object $item The item
*/
public static function returnIcs($item)
{
if (empty($item))
{
return;
}
$app = Factory::getApplication();
// Load Joomla config options
$sitename = $app->getCfg('sitename');
$offset = $app->getCfg('offset');
// Get date from the session (current date of the event page)
$session = Factory::getSession();
$session_date = $session->get('event_date');
if (iCDate::isDate($session_date))
{
$eventDateTime = $session_date;
}
else
{
$url_date = $app->input->get('date', '');
if ($url_date)
{
$sd_ex = explode('-', $url_date);
$eventDateTime = $sd_ex['0'] . '-' . $sd_ex['1'] . '-' . $sd_ex['2'] . ' ' . $sd_ex['3'] . ':' . $sd_ex['4'] . ':00';
}
}
$eventDateTime = isset($eventDateTime) ? $eventDateTime : $item->next;
// Set Time Offset for date of the event
$dateTimeZone = new \DateTimeZone($offset);
$dateTime = new \DateTime($eventDateTime, $dateTimeZone);
$timeOffset = $dateTimeZone->getOffset($dateTime);
$timezone = ($timeOffset / 3600);
$event_date = isset($eventDateTime)
? date('Y-m-d-H-i', (strtotime($eventDateTime) - $timeOffset))
: date('Y-m-d-H-i', (strtotime($item->next) - $timeOffset));
$s_dates = $item->dates;
$single_dates = unserialize($s_dates);
$single_dates = is_array($single_dates) ? $single_dates : array();
$ex = explode('-', $event_date);
$this_date = $ex['0'].'-'.$ex['1'].'-'.$ex['2'].' '.$ex['3'].':'.$ex['4'];
$startdate = date('Y-m-d-H-i', (strtotime($item->startdate) - $timeOffset));
$enddate = date('Y-m-d-H-i', (strtotime($item->enddate) - $timeOffset));
if ( ($event_date >= $startdate)
&& ($event_date <= $enddate)
&& ( ! in_array($this_date, $single_dates)) )
{
$weekdays = ($item->weekdays || $item->weekdays == '0') ? true : false;
$hasWeekdays = (boolean) ($item->weekdays || $item->weekdays == '0');
if ($weekdays)
{
$startdate = date('Y-m-d-H-i', strtotime($this_date));
$enddate = date('Y-m-d', strtotime($this_date)) . '-' . date('H-i', strtotime($item->enddate)-$timeOffset);
}
$ex_S = explode('-', $startdate);
$ex_E = explode('-', $enddate);
$start_Datetime = $ex_S['0'] . $ex_S['1'] . $ex_S['2'] . 'T' . $ex_S['3'] . $ex_S['4'] . '00Z';
$end_Datetime = $ex_E['0'] . $ex_E['1'] . $ex_E['2'] . 'T' . $ex_E['3'] . $ex_E['4'] . '00Z';
}
else
{
$start_Datetime = $end_Datetime = $ex['0'] . $ex['1'] . $ex['2'] . 'T' . $ex['3'] . $ex['4'] . '00Z';
}
// Get URL to event details page.
$uriString = Uri::getInstance()->toString();
$eventURL = preg_replace('/&tmpl=[^&]*/', '', $uriString);
$eventURL = preg_replace('/&vcal=[^&]*/', '', $eventURL);
$eventURL = preg_replace('/\?tmpl=[^\?]*/', '', $eventURL);
$eventURL = preg_replace('/\?vcal=[^\?]*/', '', $eventURL);
// Create a new calendar
$vcalendar = Vcalendar::factory( [ Vcalendar::UNIQUE_ID => $sitename, ] );
// with calendaring info
$vcalendar->setMethod( Vcalendar::PUBLISH )
->setXprop(
Vcalendar::X_WR_CALNAME,
"iCagenda"
)
->setXprop(
Vcalendar::X_WR_CALDESC,
"Event Management Extension for Joomla!"
)
->setXprop(
Vcalendar::X_WR_RELCALID,
"3E26604A-50F4-4449-8B3E-E4F4932D05B5"
)
->setXprop(
Vcalendar::X_WR_TIMEZONE,
$offset
);
// Create a new event
$event1 = $vcalendar->newVevent()
->setTransp( Vcalendar::OPAQUE )
->setClass( Vcalendar::P_BLIC )
->setSequence( 1 )
// describe the event
->setCategories($item->cat_title)
->setSummary($item->title)
->setDescription(
strip_tags($item->desc),
[ Vcalendar::ALTREP =>
'CID:<FFFF__=0ABBE548DFE235B58f9e8a93d@coffeebean.com>' ]
)
// ->setComment( 'It\'s going to be fun...' )
// place the event
->setLocation($item->place)
->setGeo($item->lat, $item->lng)
->setUrl($eventURL)
// set the time
->setDtstart(
new \DateTime(
$start_Datetime
)
)
->setDtend(
new \DateTime(
$end_Datetime
)
)
// with recurrence rule
// ->setRrule(
// [
// Vcalendar::FREQ => Vcalendar::WEEKLY,
// Vcalendar::COUNT => 5,
// ]
// )
// and set another on a specific date
// ->setRdate(
// [
// new \DateTime(
// '20190609T090000',
// new \DateTimeZone( 'Europe/Stockholm' )
// ),
// new \DateTime(
// '20190609T110000',
// new \DateTimeZone( 'Europe/Stockholm' )
// ),
// ],
// [ Vcalendar::VALUE => Vcalendar::PERIOD ]
// )
// and revoke a recurrence date
// ->setExdate(
// new \DateTime(
// '2019-05-12 09:00:00',
// new \DateTimeZone( 'Europe/Stockholm' )
// )
// )
// organizer, chair and some participants
->setOrganizer(
$item->contact_email,
[ Vcalendar::CN => $item->contact_name ]
);
// ->setAttendee(
// 'president@coffeebean.com',
// [
// Vcalendar::ROLE => Vcalendar::CHAIR,
// Vcalendar::PARTSTAT => Vcalendar::ACCEPTED,
// Vcalendar::RSVP => Vcalendar::FALSE,
// Vcalendar::CN => 'President CoffeeBean',
// ]
// )
// ->setAttendee(
// 'participant1@coffeebean.com',
// [
// Vcalendar::ROLE => Vcalendar::REQ_PARTICIPANT,
// Vcalendar::PARTSTAT => Vcalendar::NEEDS_ACTION,
// Vcalendar::RSVP => Vcalendar::TRUE,
// Vcalendar::CN => 'Participant1 CoffeeBean',
// ]
// );
// add alarm for the event
// $alarm = $event1->newValarm()
// ->setAction( Vcalendar::DISPLAY )
// copy description from event
// ->setDescription( $event1->getDescription())
// fire off the alarm one day before
// ->setTrigger( '-P1D' );
// alter day and time for one event in recurrence set
// $event2 = $vcalendar->newVevent()
// ->setTransp( Vcalendar::OPAQUE )
// ->setClass( Vcalendar::P_BLIC )
// reference to event in recurrence set
// ->setUid( $event1->getUid())
// ->setSequence( 2 )
// pointer to event in the recurrence set
// ->setRecurrenceid( '20190505T090000 Europe/Stockholm' )
// reason text
// ->setDescription(
// 'Altered day and time for event 2019-05-05',
// [ Vcalendar::ALTREP =>
// 'CID:<FFFF__=0ABBE548DFE235B58f9e8a93d@coffeebean.com>' ]
// )
// ->setComment( 'Now we are working hard for two hours' )
// the altered day and time with duration
// ->setDtstart(
// new \DateTime(
// '20190504T100000',
// new \DateTimeZone( 'Europe/Stockholm' )
// )
// )
// ->setDuration( 'PT2H' )
// add alarm (copy from event1)
// ->setComponent(
// $event1->getComponent( Vcalendar::VALARM )
// );
$vcalendarString =
// apply appropriate Vtimezone with Standard/DayLight components
$vcalendar->vtimezonePopulate()
// and create the (string) calendar
->createCalendar();
if ($app->get('unicodeslugs') == 1)
{
$name = OutputFilter::stringUrlUnicodeSlug($item->title);
}
else
{
$name = OutputFilter::stringURLSafe($item->title);
}
if (empty($name))
{
// Use 'icagenda' in case name is still empty
$name = 'icagenda';
}
$utf8Encode = false;
$gzip = false;
$cdType = true;
$filename = $name . '.ics';
$vcalendar->returnCalendar($utf8Encode, $gzip, $cdType, $filename);
exit;
}
}