SO8601 compliant date.', 'woocommerce' ),
			'type'              => 'string',
			'format'            => 'date-time',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['before'] = array(
			'description'       => __( 'Limit response to resources created before a given ISO8601 compliant date.', 'woocommerce' ),
			'type'              => 'string',
			'format'            => 'date-time',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['date_column'] = array(
			'description'       => __( 'When limiting response using after/before, which date column to compare against.', 'woocommerce' ),
			'type'              => 'string',
			'default'           => 'date',
			'enum'              => array(
				'date',
				'date_gmt',
				'modified',
				'modified_gmt',
			),
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['exclude'] = array(
			'description'       => __( 'Ensure result set excludes specific IDs.', 'woocommerce' ),
			'type'              => 'array',
			'items'             => array(
				'type' => 'integer',
			),
			'default'           => [],
			'sanitize_callback' => 'wp_parse_id_list',
		);

		$params['include'] = array(
			'description'       => __( 'Limit result set to specific ids.', 'woocommerce' ),
			'type'              => 'array',
			'items'             => array(
				'type' => 'integer',
			),
			'default'           => [],
			'sanitize_callback' => 'wp_parse_id_list',
		);

		$params['offset'] = array(
			'description'       => __( 'Offset the result set by a specific number of items.', 'woocommerce' ),
			'type'              => 'integer',
			'sanitize_callback' => 'absint',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['order'] = array(
			'description'       => __( 'Order sort attribute ascending or descending.', 'woocommerce' ),
			'type'              => 'string',
			'default'           => 'desc',
			'enum'              => array( 'asc', 'desc' ),
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['orderby'] = array(
			'description'       => __( 'Sort collection by object attribute.', 'woocommerce' ),
			'type'              => 'string',
			'default'           => 'date',
			'enum'              => array(
				'date',
				'modified',
				'id',
				'include',
				'title',
				'slug',
				'price',
				'popularity',
				'rating',
				'menu_order',
				'comment_count',
			),
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['parent'] = array(
			'description'       => __( 'Limit result set to those of particular parent IDs.', 'woocommerce' ),
			'type'              => 'array',
			'items'             => array(
				'type' => 'integer',
			),
			'default'           => [],
			'sanitize_callback' => 'wp_parse_id_list',
		);

		$params['parent_exclude'] = array(
			'description'       => __( 'Limit result set to all items except those of a particular parent ID.', 'woocommerce' ),
			'type'              => 'array',
			'items'             => array(
				'type' => 'integer',
			),
			'sanitize_callback' => 'wp_parse_id_list',
			'default'           => [],
		);

		$params['type'] = array(
			'description'       => __( 'Limit result set to products assigned a specific type.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => array_merge( array_keys( wc_get_product_types() ), [ 'variation' ] ),
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['sku'] = array(
			'description'       => __( 'Limit result set to products with specific SKU(s). Use commas to separate.', 'woocommerce' ),
			'type'              => 'string',
			'sanitize_callback' => 'sanitize_text_field',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['featured'] = array(
			'description'       => __( 'Limit result set to featured products.', 'woocommerce' ),
			'type'              => 'boolean',
			'sanitize_callback' => 'wc_string_to_bool',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['category'] = array(
			'description'       => __( 'Limit result set to products assigned a specific category ID.', 'woocommerce' ),
			'type'              => 'string',
			'sanitize_callback' => 'wp_parse_id_list',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['category_operator'] = array(
			'description'       => __( 'Operator to compare product category terms.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => [ 'in', 'not in', 'and' ],
			'default'           => 'in',
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['tag'] = array(
			'description'       => __( 'Limit result set to products assigned a specific tag ID.', 'woocommerce' ),
			'type'              => 'string',
			'sanitize_callback' => 'wp_parse_id_list',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['tag_operator'] = array(
			'description'       => __( 'Operator to compare product tags.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => [ 'in', 'not in', 'and' ],
			'default'           => 'in',
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['on_sale'] = array(
			'description'       => __( 'Limit result set to products on sale.', 'woocommerce' ),
			'type'              => 'boolean',
			'sanitize_callback' => 'wc_string_to_bool',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['min_price'] = array(
			'description'       => __( 'Limit result set to products based on a minimum price, provided using the smallest unit of the currency.', 'woocommerce' ),
			'type'              => 'string',
			'sanitize_callback' => 'sanitize_text_field',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['max_price'] = array(
			'description'       => __( 'Limit result set to products based on a maximum price, provided using the smallest unit of the currency.', 'woocommerce' ),
			'type'              => 'string',
			'sanitize_callback' => 'sanitize_text_field',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['stock_status'] = array(
			'description' => __( 'Limit result set to products with specified stock status.', 'woocommerce' ),
			'type'        => 'array',
			'items'       => array(
				'type'              => 'string',
				'enum'              => array_keys( wc_get_product_stock_status_options() ),
				'sanitize_callback' => 'sanitize_text_field',
				'validate_callback' => 'rest_validate_request_arg',
			),
			'default'     => [],
		);

		$params['attributes'] = array(
			'description' => __( 'Limit result set to products with selected global attributes.', 'woocommerce' ),
			'type'        => 'array',
			'items'       => array(
				'type'       => 'object',
				'properties' => array(
					'attribute' => array(
						'description'       => __( 'Attribute taxonomy name.', 'woocommerce' ),
						'type'              => 'string',
						'sanitize_callback' => 'wc_sanitize_taxonomy_name',
					),
					'term_id'   => array(
						'description'       => __( 'List of attribute term IDs.', 'woocommerce' ),
						'type'              => 'array',
						'items'             => [
							'type' => 'integer',
						],
						'sanitize_callback' => 'wp_parse_id_list',
					),
					'slug'      => array(
						'description'       => __( 'List of attribute slug(s). If a term ID is provided, this will be ignored.', 'woocommerce' ),
						'type'              => 'array',
						'items'             => [
							'type' => 'string',
						],
						'sanitize_callback' => 'wp_parse_slug_list',
					),
					'operator'  => array(
						'description' => __( 'Operator to compare product attribute terms.', 'woocommerce' ),
						'type'        => 'string',
						'enum'        => [ 'in', 'not in', 'and' ],
					),
				),
			),
			'default'     => [],
		);

		$params['attribute_relation'] = array(
			'description'       => __( 'The logical relationship between attributes when filtering across multiple at once.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => [ 'in', 'and' ],
			'default'           => 'and',
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['catalog_visibility'] = array(
			'description'       => __( 'Determines if hidden or visible catalog products are shown.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => array( 'any', 'visible', 'catalog', 'search', 'hidden' ),
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		$params['rating'] = array(
			'description'       => __( 'Limit result set to products with a certain average rating.', 'woocommerce' ),
			'type'              => 'array',
			'items'             => array(
				'type' => 'integer',
				'enum' => range( 1, 5 ),
			),
			'default'           => [],
			'sanitize_callback' => 'wp_parse_id_list',
		);

		return $params;
	}
}