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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Swatches\Model\Plugin;
use Magento\Catalog\Model\Product;
use Magento\ConfigurableProduct\Model\Product\Type\Configurable;
use Magento\Swatches\Helper\Data;
use Magento\Eav\Model\Config;
use Magento\Framework\App\Request\Http;
use Magento\Catalog\Block\Product\AbstractProduct;
use Magento\Catalog\Model\Product as ProductModel;
use Magento\Catalog\Model\ResourceModel\Eav\Attribute;
/**
* Class ProductImage replace original configurable product with first child
*/
class ProductImage
{
/**
* Determine context of creation image block
* which defined in catalog/product/list.phtml
*/
const CATEGORY_PAGE_GRID_LOCATION = 'category_page_grid';
const CATEGORY_PAGE_LIST_LOCATION = 'category_page_list';
/**
* Data helper to get child product image
*
* @var Data $productHelper
*/
protected $swatchHelperData;
/**
* @var Config
*/
protected $eavConfig;
/**
* @var Http
*/
protected $request;
/**
* @param Data $swatchesHelperData
* @param Config $eavConfig
* @param Http $request
*/
public function __construct(
Data $swatchesHelperData,
Config $eavConfig,
Http $request
) {
$this->swatchHelperData = $swatchesHelperData;
$this->eavConfig = $eavConfig;
$this->request = $request;
}
/**
* Replace original configurable product with first child
*
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
* @param AbstractProduct $subject
* @param ProductModel $product
* @param string $location
* @param array $attributes
* @return array
*/
public function beforeGetImage(
AbstractProduct $subject,
ProductModel $product,
$location,
array $attributes = []
) {
if ($product->getTypeId() == Configurable::TYPE_CODE
&& ($location == self::CATEGORY_PAGE_GRID_LOCATION || $location == self::CATEGORY_PAGE_LIST_LOCATION)) {
$request = $this->request->getParams();
if (is_array($request)) {
$filterArray = $this->getFilterArray($request, $product);
if (!empty($filterArray)) {
$product = $this->loadSimpleVariation($product, $filterArray);
}
}
}
return [$product, $location, $attributes];
}
/**
* @param Product $parentProduct
* @param array $filterArray
* @return bool|Product
*/
private function loadSimpleVariation(Product $parentProduct, array $filterArray)
{
$childProduct = $this->swatchHelperData->loadVariationByFallback($parentProduct, $filterArray);
if ($childProduct && !$childProduct->getImage()) {
$childProduct = $this->swatchHelperData->loadFirstVariationWithImage($parentProduct, $filterArray);
}
if (!$childProduct) {
$childProduct = $parentProduct;
}
return $childProduct;
}
/**
* Get filters from request
*
* @param array $request
* @param \Magento\Catalog\Model\Product $product
* @return array
*/
private function getFilterArray(array $request, Product $product)
{
$filterArray = [];
$attributes = $this->eavConfig->getEntityAttributes(Product::ENTITY, $product);
foreach ($request as $code => $value) {
if (isset($attributes[$code])) {
$attribute = $attributes[$code];
if ($this->canReplaceImageWithSwatch($attribute)) {
$filterArray[$code] = $value;
}
}
}
return $filterArray;
}
/**
* Check if we can replace original image with swatch image on catalog/category/list page
*
* @param Attribute $attribute
* @return bool
*/
private function canReplaceImageWithSwatch($attribute)
{
$result = true;
if (!$this->swatchHelperData->isSwatchAttribute($attribute)) {
$result = false;
}
if (!$attribute->getUsedInProductListing()
|| !$attribute->getIsFilterable()
|| !$attribute->getData('update_product_preview_image')
) {
$result = false;
}
return $result;
}
}