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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** @license For full copyright and license information, please see the LICENSE.md file. */ |
| 6 | |
| 7 | namespace App\Modules\Automation\Queue\Application\Service; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Modules\Automation\Queue\Application\Handler\JobHandlerInterface; |
| 12 | use App\Modules\Automation\Queue\Domain\Model\QueueJob; |
| 13 | use App\Modules\Automation\Queue\Domain\Repository\QueueRepositoryInterface; |
| 14 | use DateTimeImmutable; |
| 15 | use RuntimeException; |
| 16 | use Throwable; |
| 17 | |
| 18 | /** |
| 19 | * Queue Application Manager Service. |
| 20 | * |
| 21 | * Orchestrates background job registration, handler discovery, safe execution, |
| 22 | * and automatic zombie recovery with heartbeat timeout detection. |
| 23 | * |
| 24 | * @package App\Modules\Automation\Queue\Application\Service |
| 25 | */ |
| 26 | final class QueueManager |
| 27 | { |
| 28 | /** |
| 29 | * @var array<string, JobHandlerInterface> Registered job handlers keyed by job type. |
| 30 | */ |
| 31 | private array $handlers = []; |
| 32 | |
| 33 | /** |
| 34 | * QueueManager constructor. |
| 35 | * |
| 36 | * @param QueueRepositoryInterface $queueRepository Queue persistence repository. |
| 37 | * @param array<int, JobHandlerInterface> $handlers Initial handlers list. |
| 38 | */ |
| 39 | public function __construct( |
| 40 | private readonly QueueRepositoryInterface $queueRepository, |
| 41 | array $handlers = [] |
| 42 | ) { |
| 43 | foreach ($handlers as $handler) { |
| 44 | $this->registerHandler($handler); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Registers a specialized job handler. |
| 50 | * |
| 51 | * @param JobHandlerInterface $handler Handler instance. |
| 52 | * @return void |
| 53 | */ |
| 54 | public function registerHandler(JobHandlerInterface $handler): void |
| 55 | { |
| 56 | $this->handlers[$handler->supports()] = $handler; |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Enqueues a new background task. |
| 61 | * |
| 62 | * @param string $jobType Machine name of the job type. |
| 63 | * @param string $label Human-readable title. |
| 64 | * @param array<string, mixed> $payload Serialized execution parameters. |
| 65 | * @param int $createdBy User ID. |
| 66 | * @param int $owner Owner User ID. |
| 67 | * @return int Enqueued job ID. |
| 68 | */ |
| 69 | public function enqueue( |
| 70 | string $jobType, |
| 71 | string $label, |
| 72 | array $payload, |
| 73 | int $createdBy = 1, |
| 74 | int $owner = 1 |
| 75 | ): int { |
| 76 | return $this->queueRepository->enqueue($jobType, $label, $payload, $createdBy, $owner); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Fetches and processes the next pending queue job. |
| 81 | * |
| 82 | * @param DateTimeImmutable $now Current execution timestamp. |
| 83 | * @return bool True if a job was found and processed, false if queue is idle. |
| 84 | */ |
| 85 | public function processNext(DateTimeImmutable $now): bool |
| 86 | { |
| 87 | $job = $this->queueRepository->fetchNextPending($now); |
| 88 | if ($job === null) { |
| 89 | return false; |
| 90 | } |
| 91 | |
| 92 | $this->executeJobWithSafety($job, $now); |
| 93 | |
| 94 | return true; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Executes single job with strict exception safety and state transitions. |
| 99 | * |
| 100 | * @param QueueJob $job Job to execute. |
| 101 | * @param DateTimeImmutable $now Execution start timestamp. |
| 102 | * @return void |
| 103 | */ |
| 104 | private function executeJobWithSafety(QueueJob $job, DateTimeImmutable $now): void |
| 105 | { |
| 106 | $jobId = $job->getId(); |
| 107 | $jobType = $job->getJobType(); |
| 108 | |
| 109 | if (!isset($this->handlers[$jobType])) { |
| 110 | $this->queueRepository->markFailed( |
| 111 | $jobId, |
| 112 | "No registered handler found for job type '{$jobType}'.", |
| 113 | $now |
| 114 | ); |
| 115 | return; |
| 116 | } |
| 117 | |
| 118 | $handler = $this->handlers[$jobType]; |
| 119 | |
| 120 | try { |
| 121 | $outputLog = $handler->handle($job, $this->queueRepository); |
| 122 | $completionNow = new DateTimeImmutable(); |
| 123 | $this->queueRepository->markCompleted($jobId, $completionNow, $outputLog); |
| 124 | } catch (Throwable $e) { |
| 125 | $failureNow = new DateTimeImmutable(); |
| 126 | $this->queueRepository->markFailed($jobId, $e->getMessage(), $failureNow); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Recovers dead/stale zombie jobs with expired heartbeat. |
| 132 | * |
| 133 | * @param int $staleSeconds Stale threshold in seconds (default 300 = 5 min). |
| 134 | * @param DateTimeImmutable|null $now Optional timestamp. |
| 135 | * @return int Count of recovered/failed jobs. |
| 136 | */ |
| 137 | public function recoverZombies(int $staleSeconds = 300, ?DateTimeImmutable $now = null): int |
| 138 | { |
| 139 | $currentNow = $now ?? new DateTimeImmutable(); |
| 140 | return $this->queueRepository->recoverStaleJobs($staleSeconds, $currentNow); |
| 141 | } |
| 142 | } |