Issue #3090859: Profile owner is set to Anonymouse (not verified)

Closes #3090859

Uses the AddressBook service to create a copy of the profile owned by the customer, leaving one copy owned by the order (e.g. anonymous user).

This is the same process used by Commerce Order during a normal checkout. See https://www.drupal.org/project/commerce/issues/3202357#comment-14023972

src/Plugin/rest/resource/OrderCreateResource.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\commerce_decoupled_checkout\Plugin\rest\resource;
 
+use Drupal\commerce_order\AddressBookInterface;
 use Drupal\commerce_order\Entity\OrderInterface;
 use Drupal\commerce_payment\Plugin\Commerce\PaymentGateway\OnsitePaymentGatewayInterface;
 use Drupal\commerce_price\Price;
@@ -73,6 +74,12 @@ class OrderCreateResource extends ResourceBase {
    */
   protected $moduleHandler;
 
+  /**
+   * Commerce Addressbook service.
+   * @var \Drupal\commerce_order\AddressBookInterface
+   */
+  protected $addressBook;
+
   /**
    * Constructs a new object.
    *
@@ -93,11 +100,22 @@ class OrderCreateResource extends ResourceBase {
    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
    *   Module handler service.
    */
-  public function __construct(array $configuration, $plugin_id, $plugin_definition, array $serializer_formats, LoggerInterface $logger, EntityTypeManagerInterface $entity_type_manager, TimeInterface $time, ModuleHandlerInterface $module_handler) {
+  public function __construct(
+    array $configuration,
+    $plugin_id,
+    $plugin_definition,
+    array $serializer_formats,
+    LoggerInterface $logger,
+    EntityTypeManagerInterface $entity_type_manager,
+    TimeInterface $time,
+    ModuleHandlerInterface $module_handler,
+    AddressBookInterface $addressBook
+  ) {
     parent::__construct($configuration, $plugin_id, $plugin_definition, $serializer_formats, $logger);
     $this->entityTypeManager = $entity_type_manager;
     $this->time = $time;
     $this->moduleHandler = $module_handler;
+    $this->addressBook = $addressBook;
   }
 
   /**
@@ -112,7 +130,8 @@ class OrderCreateResource extends ResourceBase {
       $container->get('logger.factory')->get('commerce_decoupled_checkout'),
       $container->get('entity_type.manager'),
       $container->get('datetime.time'),
-      $container->get('module_handler')
+      $container->get('module_handler'),
+      $container->get('commerce_order.address_book'),
     );
   }
 
@@ -478,6 +497,12 @@ class OrderCreateResource extends ResourceBase {
       // Save the order object to the database.
       $order->save();
 
+      // Commerce Order anonymizes the billing profile. We need to create a copy owned by $user.
+      // @See https://www.drupal.org/project/commerce/issues/3202357#comment-14023972
+      if (!empty($order_data['billing_profile'])) {
+        $this->addressBook->copy($order_data['billing_profile'], $user);
+      }
+
       // If order number was not populated from the frontend, then use the
       // number pattern generator of the order type to populate it.
       if (!$order->getOrderNumber()) {