/**
  * Initialize data for configurable product
  *
  * @param Helper $subject
  * @param ProductInterface $product
  * @return ProductInterface
  * @throws \InvalidArgumentException
  *
  * @SuppressWarnings(PHPMD.UnusedFormalParameter)
  */
 public function afterInitialize(Helper $subject, ProductInterface $product)
 {
     $attributes = $this->request->getParam('attributes');
     $productData = $this->request->getPost('product', []);
     if ($product->getTypeId() !== ConfigurableProduct::TYPE_CODE || empty($attributes)) {
         return $product;
     }
     $setId = $this->request->getPost('new-variations-attribute-set-id');
     if ($setId) {
         $product->setAttributeSetId($setId);
     }
     $extensionAttributes = $product->getExtensionAttributes();
     $product->setNewVariationsAttributeSetId($setId);
     $configurableOptions = [];
     if (!empty($productData['configurable_attributes_data'])) {
         $configurableOptions = $this->optionsFactory->create((array) $productData['configurable_attributes_data']);
     }
     $extensionAttributes->setConfigurableProductOptions($configurableOptions);
     $this->setLinkedProducts($product, $extensionAttributes);
     $product->setCanSaveConfigurableAttributes((bool) $this->request->getPost('affect_configurable_product_attributes'));
     $product->setExtensionAttributes($extensionAttributes);
     return $product;
 }