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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | /** |
| 5 | * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors |
| 6 | * SPDX-License-Identifier: AGPL-3.0-or-later |
| 7 | */ |
| 8 | |
| 9 | namespace OCA\Libresign\BackgroundJob; |
| 10 | |
| 11 | use OCA\Libresign\AppInfo\Application; |
| 12 | use OCA\Libresign\Db\NotificationDeliveryMapper; |
| 13 | use OCP\AppFramework\Utility\ITimeFactory; |
| 14 | use OCP\BackgroundJob\IJob; |
| 15 | use OCP\BackgroundJob\IJobList; |
| 16 | use OCP\BackgroundJob\TimedJob; |
| 17 | use OCP\IAppConfig; |
| 18 | |
| 19 | /** Restore due jobs lost after a crash, without transmitting or replaying uncertain results. */ |
| 20 | final class RecoverPendingNotifications extends TimedJob { |
| 21 | private const BATCH_SIZE = 50; |
| 22 | private const MAX_INSPECTED = 500; |
| 23 | private const MAX_QUEUED = 50; |
| 24 | private const CURSOR_KEY = 'notification_recovery_last_scanned_id'; |
| 25 | |
| 26 | public function __construct( |
| 27 | ITimeFactory $time, |
| 28 | private NotificationDeliveryMapper $deliveries, |
| 29 | private IJobList $jobs, |
| 30 | private IAppConfig $appConfig, |
| 31 | ) { |
| 32 | parent::__construct($time); |
| 33 | $this->setInterval(60); |
| 34 | $this->setTimeSensitivity(IJob::TIME_SENSITIVE); |
| 35 | } |
| 36 | |
| 37 | #[\Override] |
| 38 | public function run($argument): void { |
| 39 | $cursor = max(0, $this->appConfig->getValueInt(Application::APP_ID, self::CURSOR_KEY, 0)); |
| 40 | $inspected = 0; |
| 41 | $queued = 0; |
| 42 | while ($inspected < self::MAX_INSPECTED && $queued < self::MAX_QUEUED) { |
| 43 | $limit = min(self::BATCH_SIZE, self::MAX_INSPECTED - $inspected); |
| 44 | $batch = $this->deliveries->findDue($limit, $cursor); |
| 45 | if ($batch === []) { |
| 46 | $cursor = 0; |
| 47 | break; |
| 48 | } |
| 49 | foreach ($batch as $delivery) { |
| 50 | $cursor = $delivery->getId(); |
| 51 | $inspected++; |
| 52 | $jobArgument = ['id' => $cursor]; |
| 53 | // Nextcloud 36 add() resets an existing job's reservation. |
| 54 | if (!$this->jobs->has(DeliverNotification::class, $jobArgument)) { |
| 55 | $this->jobs->add(DeliverNotification::class, $jobArgument); |
| 56 | $queued++; |
| 57 | if ($queued === self::MAX_QUEUED) { |
| 58 | break; |
| 59 | } |
| 60 | } |
| 61 | } |
| 62 | if (count($batch) < $limit && $queued < self::MAX_QUEUED) { |
| 63 | // End of the eligible ID range; next cron pass starts at the oldest. |
| 64 | $cursor = 0; |
| 65 | break; |
| 66 | } |
| 67 | } |
| 68 | // Keep progress across cron processes even when the first 500 due rows |
| 69 | // already have queued jobs. No delivery state or payload is stored here. |
| 70 | $this->appConfig->setValueInt(Application::APP_ID, self::CURSOR_KEY, $cursor); |
| 71 | } |
| 72 | } |