import type { CheckoutParcelContent, OrderItem } from '../../types';

/**
 * The line's EU customs identifiers as checkout content keys (Item SKU, Manufacturer ID, Barcode).
 * Empty ones are left out, so nothing blank is sent.
 */
export function productIdentifierFields(
	item: Pick< OrderItem, 'product_identifiers' >
): Pick<
	CheckoutParcelContent,
	'merchantProductId' | 'manufacturerProductId' | 'standardProductId'
> {
	const ids = item.product_identifiers;
	const fields: ReturnType< typeof productIdentifierFields > = {};
	if ( ids?.merchant_product_id?.trim() ) {
		fields.merchantProductId = ids.merchant_product_id.trim();
	}
	if ( ids?.manufacturer_product_id?.trim() ) {
		fields.manufacturerProductId = ids.manufacturer_product_id.trim();
	}
	if ( ids?.standard_product_id?.trim() ) {
		fields.standardProductId = ids.standard_product_id.trim();
	}
	return fields;
}