From bca65aa508aa60fc84190254e53229303b1d645a Mon Sep 17 00:00:00 2001
From: Prashant Kanse <prashant.kanse@bairesdev.com>
Date: Mon, 29 Jul 2024 14:03:22 -0400
Subject: [PATCH] DDST-382: Subscriber to handle deletion of related Embargoes
 when a node is deleted

---
 islandora_entity_status.module        | 16 ++++++++++
 islandora_entity_status.services.yml  |  3 ++
 src/IslandoraNodeDeleteSubscriber.php | 42 +++++++++++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 src/IslandoraNodeDeleteSubscriber.php

diff --git a/islandora_entity_status.module b/islandora_entity_status.module
index 2433a89..06981c7 100644
--- a/islandora_entity_status.module
+++ b/islandora_entity_status.module
@@ -5,6 +5,7 @@
  * Hook implementations.
  */
 
+use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\islandora\IslandoraUtils;
@@ -165,3 +166,18 @@ function islandora_entity_status_batch_finished($success, $results, $operations)
     $messenger->addError(t('Batch processing failed.'));
   }
 }
+
+
+/**
+ * Implements hook_entity_delete().
+ */
+function islandora_entity_status_entity_delete(EntityInterface $entity) {
+  if (!$entity instanceof ContentEntityInterface) {
+    return;
+  }
+
+  // Check if the entity is a node with the bundle "islandora_object".
+  if ($entity->hasField(IslandoraUtils::MEMBER_OF_FIELD)) {
+    \Drupal::service('islandora_entity_status.islandora_node_delete_subscriber')->deleteAssociatedCustomEntity($entity);
+  }
+}
diff --git a/islandora_entity_status.services.yml b/islandora_entity_status.services.yml
index 78543d4..3a883d4 100644
--- a/islandora_entity_status.services.yml
+++ b/islandora_entity_status.services.yml
@@ -5,3 +5,6 @@ services:
       - '@entity_type.manager'
     tags:
       - { name: drush.command }
+  islandora_entity_status.islandora_node_delete_subscriber:
+    class: Drupal\islandora_entity_status\IslandoraNodeDeleteSubscriber
+    arguments: [ '@entity_type.manager' ]
diff --git a/src/IslandoraNodeDeleteSubscriber.php b/src/IslandoraNodeDeleteSubscriber.php
new file mode 100644
index 0000000..2fb9785
--- /dev/null
+++ b/src/IslandoraNodeDeleteSubscriber.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\islandora_entity_status;
+
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\node\NodeInterface;
+
+class IslandoraNodeDeleteSubscriber {
+
+  /**
+   * The entity type manager.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
+   */
+  protected $entityTypeManager;
+
+  /**
+   * Constructs a new CustomEntityDeleter object.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
+   *   The entity type manager.
+   */
+  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
+    $this->entityTypeManager = $entity_type_manager;
+  }
+
+  /**
+   * Deletes the associated custom entity.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   The Islandora object node being deleted.
+   */
+  public function deleteAssociatedCustomEntity(NodeInterface $node): void {
+    // Replace 'your_custom_entity_type' with the actual machine name of your custom entity type.
+    $custom_entity_storage = $this->entityTypeManager->getStorage('embargo');
+    $custom_entities = $custom_entity_storage->loadByProperties(['embargoed_node' => $node->id()]);
+
+    foreach ($custom_entities as $custom_entity) {
+      $custom_entity->delete();
+    }
+  }
+}