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<?php
/**
* @copyright Copyright (c) 2018 Thomas Citharel <tcit@tcit.fr>
*
* @author Thomas Citharel <tcit@tcit.fr>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DAV\CalDAV\Reminder;
use \DateTime;
use \DateTimeImmutable;
use OCP\IConfig;
use OCP\IL10N;
use OCP\ILogger;
use OCP\IURLGenerator;
use OCP\L10N\IFactory as L10NFactory;
use OCP\IUser;
use Sabre\VObject\Component\VCalendar;
use Sabre\VObject\Component\VEvent;
use Sabre\VObject\DateTimeParser;
use Sabre\VObject\Parameter;
use Sabre\VObject\Property;
abstract class AbstractNotificationProvider {
/** @var string */
public const NOTIFICATION_TYPE = '';
/** @var ILogger */
protected $logger;
/** @var L10NFactory */
protected $l10nFactory;
/** @var IL10N */
protected $l10n;
/** @var IURLGenerator */
protected $urlGenerator;
/** @var IConfig */
protected $config;
/**
* @param ILogger $logger
* @param L10NFactory $l10nFactory
* @param IConfig $config
* @param IUrlGenerator $urlGenerator
*/
public function __construct(ILogger $logger, L10NFactory $l10nFactory, IURLGenerator $urlGenerator, IConfig $config) {
$this->logger = $logger;
$this->l10nFactory = $l10nFactory;
$this->urlGenerator = $urlGenerator;
$this->config = $config;
}
/**
* Send notification
*
* @param VCalendar $vcalendar
* @param string $calendarDisplayName
* @param IUser $user
* @return void
*/
abstract function send(VCalendar $vcalendar, string $calendarDisplayName, IUser $user): void;
/**
* @var VCalendar $vcalendar
* @var string $defaultValue
* @return array
* @throws \Exception
*/
protected function extractEventDetails(VCalendar $vcalendar, $defaultValue = ''):array {
/** @var VEvent $vevent */
$vevent = $vcalendar->VEVENT;
/** @var Property $start */
$start = $vevent->DTSTART;
if (isset($vevent->DTEND)) {
$end = $vevent->DTEND;
} elseif (isset($vevent->DURATION)) {
$isFloating = $vevent->DTSTART->isFloating();
$end = clone $vevent->DTSTART;
$endDateTime = $end->getDateTime();
$endDateTime = $endDateTime->add(DateTimeParser::parse($vevent->DURATION->getValue()));
$end->setDateTime($endDateTime, $isFloating);
} elseif (!$vevent->DTSTART->hasTime()) {
$isFloating = $vevent->DTSTART->isFloating();
$end = clone $vevent->DTSTART;
$endDateTime = $end->getDateTime();
$endDateTime = $endDateTime->modify('+1 day');
$end->setDateTime($endDateTime, $isFloating);
} else {
$end = clone $vevent->DTSTART;
}
return [
'title' => (string) $vevent->SUMMARY ?: $defaultValue,
'description' => (string) $vevent->DESCRIPTION ?: $defaultValue,
'start'=> $start->getDateTime(),
'end' => $end->getDateTime(),
'when' => $this->generateWhenString($start, $end),
'url' => (string) $vevent->URL ?: $defaultValue,
'location' => (string) $vevent->LOCATION ?: $defaultValue,
'uid' => (string) $vevent->UID,
];
}
/**
* @param Property $dtstart
* @param Property $dtend
* @return string
* @throws \Exception
*/
private function generateWhenString(Property $dtstart, Property $dtend):string {
$isAllDay = $dtstart instanceof Property\ICalendar\Date;
/** @var Property\ICalendar\Date | Property\ICalendar\DateTime $dtstart */
/** @var Property\ICalendar\Date | Property\ICalendar\DateTime $dtend */
/** @var DateTimeImmutable $dtstartDt */
$dtstartDt = $dtstart->getDateTime();
/** @var DateTimeImmutable $dtendDt */
$dtendDt = $dtend->getDateTime();
$diff = $dtstartDt->diff($dtendDt);
$dtstartDt = new DateTime($dtstartDt->format(DateTime::ATOM));
$dtendDt = new DateTime($dtendDt->format(DateTime::ATOM));
if ($isAllDay) {
// One day event
if ($diff->days === 1) {
return $this->l10n->l('date', $dtstartDt, ['width' => 'medium']);
}
//event that spans over multiple days
$localeStart = $this->l10n->l('date', $dtstartDt, ['width' => 'medium']);
$localeEnd = $this->l10n->l('date', $dtendDt, ['width' => 'medium']);
return $localeStart . ' - ' . $localeEnd;
}
/** @var Property\ICalendar\DateTime $dtstart */
/** @var Property\ICalendar\DateTime $dtend */
$isFloating = $dtstart->isFloating();
$startTimezone = $endTimezone = null;
if (!$isFloating) {
$prop = $dtstart->offsetGet('TZID');
if ($prop instanceof Parameter) {
$startTimezone = $prop->getValue();
}
$prop = $dtend->offsetGet('TZID');
if ($prop instanceof Parameter) {
$endTimezone = $prop->getValue();
}
}
$localeStart = $this->l10n->l('weekdayName', $dtstartDt, ['width' => 'abbreviated']) . ', ' .
$this->l10n->l('datetime', $dtstartDt, ['width' => 'medium|short']);
// always show full date with timezone if timezones are different
if ($startTimezone !== $endTimezone) {
$localeEnd = $this->l10n->l('datetime', $dtendDt, ['width' => 'medium|short']);
return $localeStart . ' (' . $startTimezone . ') - ' .
$localeEnd . ' (' . $endTimezone . ')';
}
// show only end time if date is the same
if ($this->isDayEqual($dtstartDt, $dtendDt)) {
$localeEnd = $this->l10n->l('time', $dtendDt, ['width' => 'short']);
} else {
$localeEnd = $this->l10n->l('weekdayName', $dtendDt, ['width' => 'abbreviated']) . ', ' .
$this->l10n->l('datetime', $dtendDt, ['width' => 'medium|short']);
}
return $localeStart . ' - ' . $localeEnd . ' (' . $startTimezone . ')';
}
/**
* @param DateTime $dtStart
* @param DateTime $dtEnd
* @return bool
*/
private function isDayEqual(DateTime $dtStart, DateTime $dtEnd):bool {
return $dtStart->format('Y-m-d') === $dtEnd->format('Y-m-d');
}
}
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