From f19338fc7d354dd4c6060e70411f88ade7698f34 Mon Sep 17 00:00:00 2001
From: Chris MacDonald <31731869+chrismacdonaldw@users.noreply.github.com>
Date: Wed, 21 Feb 2024 14:26:50 -0400
Subject: [PATCH] Delete FixityCheck entity if file entity doesn't exist

---
 src/Entity/FixityCheck.php                   | 8 +++++++-
 src/Plugin/QueueWorker/FixityCheckWorker.php | 5 +++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/Entity/FixityCheck.php b/src/Entity/FixityCheck.php
index 1c95791..4ea5099 100644
--- a/src/Entity/FixityCheck.php
+++ b/src/Entity/FixityCheck.php
@@ -208,7 +208,13 @@ class FixityCheck extends ContentEntityBase implements FixityCheckInterface {
   public function getFile(): ?File {
     /** @var \Drupal\Core\Field\EntityReferenceFieldItemList $file */
     $file = $this->file;
-    return $file->isEmpty() ? NULL : $file->referencedEntities()[0];
+
+    if ($file->isEmpty()) {
+      return NULL;
+    }
+
+    $referenced_entities = $file->referencedEntities();
+    return !empty($referenced_entities) ? reset($referenced_entities) : NULL;
   }
 
   /**
diff --git a/src/Plugin/QueueWorker/FixityCheckWorker.php b/src/Plugin/QueueWorker/FixityCheckWorker.php
index 2bc09b5..2872688 100644
--- a/src/Plugin/QueueWorker/FixityCheckWorker.php
+++ b/src/Plugin/QueueWorker/FixityCheckWorker.php
@@ -7,6 +7,7 @@ use Drupal\Core\Queue\QueueWorkerBase;
 use Drupal\dgi_fixity\FixityCheckServiceInterface;
 use Drupal\dgi_fixity\FixityCheckInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
+use function PHPUnit\Framework\isEmpty;
 
 /**
  * Performs a fixity check.
@@ -60,6 +61,10 @@ class FixityCheckWorker extends QueueWorkerBase implements ContainerFactoryPlugi
    */
   public function processItem($data) {
     if ($data instanceof FixityCheckInterface) {
+      if (isEmpty($data->getFile())) {
+        $data->delete();
+        return;
+      }
       /** @var \Drupal\dgi_fixity\FixityCheckInterface $data */
       $this->fixity->check($data->getFile());
     }