From 29fec50515e3daa1864913b8b4249198ef92f246 Mon Sep 17 00:00:00 2001
From: Julie Lenaerts <julielenaerts@gmail.com>
Date: Mon, 12 Aug 2024 11:45:27 +0200
Subject: [PATCH] Add cronjob and repository method to find and cancel stale
 workflows every other day

---
 .../Workflow/EntityWorkflowRepository.php     | 13 +++++
 .../Workflow/CancelStaleWorkflowCronJob.php   | 55 +++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 src/Bundle/ChillMainBundle/Service/Workflow/CancelStaleWorkflowCronJob.php

diff --git a/src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowRepository.php b/src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowRepository.php
index f5696d2b9..b6e2e0814 100644
--- a/src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowRepository.php
+++ b/src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowRepository.php
@@ -198,6 +198,19 @@ class EntityWorkflowRepository implements ObjectRepository
         return $this->repository->findOneBy($criteria);
     }
 
+    public function findWorkflowsWithoutFinalStepAndOlderThan(\DateTimeImmutable $olderThanDate)
+    {
+        $qb = $this->repository->createQueryBuilder('sw');
+
+        $qb->select('sw.id')
+            ->where('NOT EXISTS (SELECT 1 FROM chill_main_entity_workflow_step ews WHERE ews.isFinal = TRUE AND ews.entityWorkflow = sw.id)')
+            ->andWhere(':olderThanDate > ALL (SELECT ews.transitionAt FROM chill_main_entity_workflow_step ews WHERE ews.transitionAt IS NOT NULL AND ews.entityWorkflow = sw.id)')
+            ->andWhere('sw.createdAt < :olderThanDate')
+            ->setParameter('olderThanDate', $olderThanDate);
+
+        return $qb->getQuery()->getResult();
+    }
+
     public function getClassName(): string
     {
         return EntityWorkflow::class;
diff --git a/src/Bundle/ChillMainBundle/Service/Workflow/CancelStaleWorkflowCronJob.php b/src/Bundle/ChillMainBundle/Service/Workflow/CancelStaleWorkflowCronJob.php
new file mode 100644
index 000000000..2114396f0
--- /dev/null
+++ b/src/Bundle/ChillMainBundle/Service/Workflow/CancelStaleWorkflowCronJob.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Chill\MainBundle\Service\Workflow;
+
+use Chill\MainBundle\Cron\CronJobInterface;
+use Chill\MainBundle\Entity\CronJobExecution;
+use Chill\MainBundle\Repository\Workflow\EntityWorkflowRepository;
+use DateInterval;
+use Doctrine\DBAL\Connection;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Clock\ClockInterface;
+use Symfony\Component\Messenger\MessageBusInterface;
+
+class CancelStaleWorkflowCronJob implements CronJobInterface
+{
+    public const KEY = 'remove-stale-workflow';
+
+    public const KEEP_INTERVAL = 'P90D';
+
+    private const LAST_CANCELED_WORKFLOW = 'last-canceled-workflow-id';
+
+    public function __construct(private readonly EntityWorkflowRepository $workflowRepository,
+                                private readonly ClockInterface           $clock,
+                                private readonly MessageBusInterface      $messageBus,
+    )
+    {
+    }
+
+    public function canRun(?CronJobExecution $cronJobExecution): bool
+    {
+        return $this->clock->now() >= $cronJobExecution->getLastEnd()->add(new DateInterval('P1D'));
+    }
+
+    public function getKey(): string
+    {
+        return self::KEY;
+    }
+
+    public function run(array $lastExecutionData): ?array
+    {
+        $olderThanDate = $this->clock->now()->sub(new DateInterval(self::KEEP_INTERVAL));
+
+        $staleWorkflowIds = $this->workflowRepository->findWorkflowsWithoutFinalStepAndOlderThan($olderThanDate);
+
+        $lastCanceled = self::LAST_CANCELED_WORKFLOW;
+
+        foreach ($staleWorkflowIds as $wId) {
+            $this->messageBus->dispatch(new CancelStaleWorkflow($wId));
+            $lastCanceled = $wId;
+        }
+
+        return [self::LAST_CANCELED_WORKFLOW => $lastCanceled];
+    }
+
+}