Handle circle deletion event and add cleanup job

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/Migration/DeletedCircleCleanup.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace OCA\Deck\Migration;
+
+use OCA\Deck\Db\Acl;
+use OCA\Deck\Db\AclMapper;
+use OCA\Deck\Service\CirclesService;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class DeletedCircleCleanup implements IRepairStep {
+	private AclMapper $aclMapper;
+	private CirclesService $circleService;
+
+	public function __construct(AclMapper $aclMapper, CirclesService $circlesService) {
+		$this->aclMapper = $aclMapper;
+		$this->circleService = $circlesService;
+	}
+
+	public function getName() {
+		return 'Cleanup Deck ACL entries for circles which have been already deleted';
+	}
+
+	public function run(IOutput $output) {
+		if (!$this->circleService->isCirclesEnabled()) {
+			return;
+		}
+
+		foreach ($this->aclMapper->findByType(Acl::PERMISSION_TYPE_CIRCLE) as $acl) {
+			if ($this->circleService->getCircle($acl->getParticipant()) === null) {
+				$this->aclMapper->delete($acl);
+				$output->info('Removed circle with id ' . $acl->getParticipant());
+			}
+		}
+	}
+}