fix: expose via dav capabilities whether calendar app is enabled

Signed-off-by: Maksim Sukharev <antreesy.web@gmail.com>

Author: Antreesy

apps/dav/lib/Capabilities.php

@@ -5,6 +5,7 @@
  */
 namespace OCA\DAV;
 
+use OCP\App\IAppManager;
 use OCP\Capabilities\ICapability;
 use OCP\IConfig;
 use OCP\User\IAvailabilityCoordinator;
@@ -13,17 +14,19 @@ class Capabilities implements ICapability {
 	public function __construct(
 		private IConfig $config,
 		private IAvailabilityCoordinator $coordinator,
+		private IAppManager $appManager,
 	) {
 	}
 
 	/**
-	 * @return array{dav: array{chunking: string, public_shares_chunking: bool, bulkupload?: string, absence-supported?: bool, absence-replacement?: bool}}
+	 * @return array{dav: array{chunking: string, public_shares_chunking: bool, calendar_enabled: bool, bulkupload?: string, absence-supported?: bool, absence-replacement?: bool}}
 	 */
 	public function getCapabilities() {
 		$capabilities = [
 			'dav' => [
 				'chunking' => '1.0',
 				'public_shares_chunking' => true,
+				'calendar_enabled' => $this->appManager->isEnabledForUser('calendar'),
 			]
 		];
 		if ($this->config->getSystemValueBool('bulkupload.enabled', true)) {