1 files changed, 86 insertions, 0 deletions
diff --git a/apps/dav/lib/CalDAV/UpcomingEventsService.php b/apps/dav/lib/CalDAV/UpcomingEventsService.php
new file mode 100644
index 00000000000..1a8aed5bd71
--- /dev/null
+++ b/apps/dav/lib/CalDAV/UpcomingEventsService.php
@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\DAV\CalDAV;
+
+use OCP\App\IAppManager;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\Calendar\IManager;
+use OCP\IURLGenerator;
+use OCP\IUserManager;
+use function array_map;
+
+class UpcomingEventsService {
+	public function __construct(
+		private IManager $calendarManager,
+		private ITimeFactory $timeFactory,
+		private IUserManager $userManager,
+		private IAppManager $appManager,
+		private IURLGenerator $urlGenerator,
+	) {
+	}
+
+	/**
+	 * @return UpcomingEvent[]
+	 */
+	public function getEvents(string $userId, ?string $location = null): array {
+		$searchQuery = $this->calendarManager->newQuery('principals/users/' . $userId);
+		if ($location !== null) {
+			$searchQuery->addSearchProperty('LOCATION');
+			$searchQuery->setSearchPattern($location);
+		}
+		$searchQuery->addType('VEVENT');
+		$searchQuery->setLimit(3);
+		$now = $this->timeFactory->now();
+		$searchQuery->setTimerangeStart($now->modify('-1 minute'));
+		$searchQuery->setTimerangeEnd($now->modify('+1 month'));
+
+		$events = $this->calendarManager->searchForPrincipal($searchQuery);
+		$calendarAppEnabled = $this->appManager->isEnabledForUser(
+			'calendar',
+			$this->userManager->get($userId),
+		);
+
+		return array_filter(array_map(function (array $event) use ($userId, $calendarAppEnabled) {
+			$calendarAppUrl = null;
+
+			if ($calendarAppEnabled) {
+				$arguments = [
+					'objectId' => base64_encode($this->urlGenerator->getWebroot() . '/remote.php/dav/calendars/' . $userId . '/' . $event['calendar-uri'] . '/' . $event['uri']),
+				];
+
+				if (isset($event['RECURRENCE-ID'])) {
+					$arguments['recurrenceId'] = $event['RECURRENCE-ID'][0];
+				}
+				/**
+				 * TODO: create a named, deep route in calendar (it's a code smell to just assume this route exists, find an abstraction)
+				 * When changing, also adjust for:
+				 * - spreed/lib/Service/CalendarIntegrationService.php#getDashboardEvents
+				 * - spreed/lib/Service/CalendarIntegrationService.php#getMutualEvents
+				 */
+				$calendarAppUrl = $this->urlGenerator->linkToRouteAbsolute('calendar.view.indexdirect.edit', $arguments);
+			}
+
+			if (isset($event['objects'][0]['STATUS']) && $event['objects'][0]['STATUS'][0] === 'CANCELLED') {
+				return false;
+			}
+
+			return new UpcomingEvent(
+				$event['uri'],
+				($event['objects'][0]['RECURRENCE-ID'][0] ?? null)?->getTimeStamp(),
+				$event['calendar-uri'],
+				$event['objects'][0]['DTSTART'][0]?->getTimestamp(),
+				$event['objects'][0]['SUMMARY'][0] ?? null,
+				$event['objects'][0]['LOCATION'][0] ?? null,
+				$calendarAppUrl,
+			);
+		}, $events));
+	}
+
+}