subception

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<?php
namespace Automattic\WooCommerce\Blocks\BlockTypes;

use Automattic\WooCommerce\Blocks\Utils\StyleAttributesUtils;
use Automattic\WooCommerce\Enums\ProductType;

/**
 * ProductPrice class.
 */
class ProductPrice extends AbstractBlock {

use EnableBlockJsonAssetsTrait;

/**
	 * Block name.
	 *
	 * @var string
	 */
	protected $block_name = 'product-price';

/**
	 * API version name.
	 *
	 * @var string
	 */
	protected $api_version = '3';

/**
	 * Get the frontend style handle for this block type.
	 *
	 * @return null
	 */
	protected function get_block_type_style() {
		return null;
	}

/**
	 * Overwrite parent method to prevent script registration.
	 *
	 * It is necessary to register and enqueues assets during the render
	 * phase because we want to load assets only if the block has the content.
	 */
	protected function register_block_type_assets() {
		return null;
	}

/**
	 * Register the context.
	 */
	protected function get_block_type_uses_context() {
		return [ 'query', 'queryId', 'postId' ];
	}

/**
	 * Include and render the block.
	 *
	 * @param array    $attributes Block attributes. Default empty array.
	 * @param string   $content    Block content. Default empty string.
	 * @param WP_Block $block      Block instance.
	 * @return string Rendered block type output.
	 */
	protected function render( $attributes, $content, $block ) {
		$post_id = isset( $block->context['postId'] ) ? $block->context['postId'] : '';
		$product = wc_get_product( $post_id );

if ( $product ) {
			$styles_and_classes = StyleAttributesUtils::get_classes_and_styles_by_attributes( $attributes );

$is_descendant_of_product_collection       = isset( $block->context['query']['isProductCollectionBlock'] );
			$is_descendant_of_grouped_product_selector = isset( $block->context['isDescendantOfGroupedProductSelector'] );
			$is_interactive                            = ! $is_descendant_of_product_collection && ! $is_descendant_of_grouped_product_selector && $product->is_type( ProductType::VARIABLE );

$wrapper_attributes     = array(
				'style' => $styles_and_classes['styles'] ?? '',
				'class' => $styles_and_classes['classes'] ?? '',
			);
			$interactive_attributes = '';
			$context_directive      = '';

if ( $is_interactive ) {
				$variations_data           = $product->get_available_variations();
				$formatted_variations_data = array();
				$has_variation_price_html  = false;
				foreach ( $variations_data as $variation ) {
					if (
						empty( $variation['variation_id'] )
						|| ! array_key_exists( 'price_html', $variation )
						|| '' === $variation['price_html']
					) {
						continue;
					}
					// Core behavior: when all variation prices are identical, Core returns '' for variation['price_html'].
					// Therefore, the presence of any non-empty price_html implies price differences and warrants interactivity.
					$has_variation_price_html                                = true;
					$formatted_variations_data[ $variation['variation_id'] ] = array(
						'price_html' => $variation['price_html'],
					);
				}

if ( ! $has_variation_price_html ) {
					$is_interactive = false;
				} else {
					wp_interactivity_config(
						'woocommerce',
						array(
							'products' => array(
								$product->get_id() => array(
									'price_html' => $product->get_price_html(),
									'variations' => $formatted_variations_data,
								),
							),
						)
					);

wp_enqueue_script_module( 'woocommerce/product-elements' );
					$wrapper_attributes['data-wp-interactive'] = 'woocommerce/product-elements';
					$context_directive                         = wp_interactivity_data_wp_context(
						array(
							'productElementKey' => 'price_html',
						)
					);
					$interactive_attributes                    = 'data-wp-watch="callbacks.updateValue" aria-live="polite" aria-atomic="true"';
				}
			}

return sprintf(
				'<div %1$s %2$s><div class="wc-block-components-product-price wc-block-grid__product-price" %3$s>
					%4$s
				</div></div>',
				get_block_wrapper_attributes( $wrapper_attributes ),
				$context_directive,
				$interactive_attributes,
				$product->get_price_html()
			);
		}
	}
}