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✏️ Editing: class-wc-product-data-store-interface.php

<?php
/**
 * Product Data Store Interface
 *
 * @version 3.0.0
 * @package WooCommerce\Interface
 */

/**
 * WC Product Data Store Interface
 *
 * Functions that must be defined by product store classes.
 *
 * @version  3.0.0
 */
interface WC_Product_Data_Store_Interface {

/**
	 * Returns an array of on sale products, as an array of objects with an
	 * ID and parent_id present. Example: $return[0]->id, $return[0]->parent_id.
	 *
	 * @return array
	 */
	public function get_on_sale_products();

/**
	 * Returns a list of product IDs ( id as key => parent as value) that are
	 * featured. Uses get_posts instead of wc_get_products since we want
	 * some extra meta queries and ALL products (posts_per_page = -1).
	 *
	 * @return array
	 */
	public function get_featured_product_ids();

/**
	 * Check if product sku is found for any other product IDs.
	 *
	 * @param int    $product_id Product ID.
	 * @param string $sku SKU.
	 * @return bool
	 */
	public function is_existing_sku( $product_id, $sku );

/**
	 * Return product ID based on SKU.
	 *
	 * @param string $sku SKU.
	 * @return int
	 */
	public function get_product_id_by_sku( $sku );

/**
	 * Returns an array of IDs of products that have sales starting soon.
	 *
	 * @return array
	 */
	public function get_starting_sales();

/**
	 * Returns an array of IDs of products that have sales which are due to end.
	 *
	 * @return array
	 */
	public function get_ending_sales();

/**
	 * Find a matching (enabled) variation within a variable product.
	 *
	 * @param WC_Product $product Variable product object.
	 * @param array      $match_attributes Array of attributes we want to try to match.
	 * @return int Matching variation ID or 0.
	 */
	public function find_matching_product_variation( $product, $match_attributes = array() );

/**
	 * Make sure all variations have a sort order set so they can be reordered correctly.
	 *
	 * @param int $parent_id Parent ID.
	 */
	public function sort_all_product_variations( $parent_id );

/**
	 * Return a list of related products (using data like categories and IDs).
	 *
	 * @param array $cats_array List of categories IDs.
	 * @param array $tags_array List of tags IDs.
	 * @param array $exclude_ids Excluded IDs.
	 * @param int   $limit Limit of results.
	 * @param int   $product_id Product ID.
	 * @return array
	 */
	public function get_related_products( $cats_array, $tags_array, $exclude_ids, $limit, $product_id );

/**
	 * Update a product's stock amount directly.
	 *
	 * Uses queries rather than update_post_meta so we can do this in one query (to avoid stock issues).
	 *
	 * @param int      $product_id_with_stock Product ID.
	 * @param int|null $stock_quantity Stock quantity to update to.
	 * @param string   $operation Either set, increase or decrease.
	 */
	public function update_product_stock( $product_id_with_stock, $stock_quantity = null, $operation = 'set' );

/**
	 * Update a product's sale count directly.
	 *
	 * Uses queries rather than update_post_meta so we can do this in one query for performance.
	 *
	 * @param int      $product_id Product ID.
	 * @param int|null $quantity Stock quantity to use for update.
	 * @param string   $operation Either set, increase or decrease.
	 */
	public function update_product_sales( $product_id, $quantity = null, $operation = 'set' );

/**
	 * Get shipping class ID by slug.
	 *
	 * @param string $slug Shipping class slug.
	 * @return int|false
	 */
	public function get_shipping_class_id_by_slug( $slug );

/**
	 * Returns an array of products.
	 *
	 * @param array $args @see wc_get_products.
	 * @return array
	 */
	public function get_products( $args = array() );

/**
	 * Get the product type based on product ID.
	 *
	 * @param int $product_id Product ID.
	 * @return bool|string
	 */
	public function get_product_type( $product_id );
}

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