import type { ReceivedDto } from '../components/transfer-details/TransferDetailsProps';
/**
 * Extra items are those present in `items` but whose SKU does NOT appear in
 * `itemsAtSubmission` (i.e. a completely new SKU added during delivery).
 *
 * For V2 POs the backend appends new item records (with new UUIDs) to
 * `po.items` for each delivery — even for SKUs that were in the original order.
 * Those are NOT extra items. We always match by `sku._id` so only genuinely
 * new SKUs (not present in the original order at all) are treated as extras.
 *
 * Deduplicates by sku._id: a genuinely extra SKU that was received across
 * multiple deliveries appears multiple times in po.items, but we only need
 * one representative entry (the first occurrence) to render the extras section.
 */
export declare function computeExtraItems(po: FdoPurchaseOrder | undefined): FdoPurchaseOrderItem[];
/**
 * Build a received map for extra items by aggregating amounts from delivery order history.
 * Always keys by sku._id (consistent with computeExtraItems).
 */
export declare function buildExtrasReceivedMap(po: FdoPurchaseOrder | undefined, extraItems: FdoPurchaseOrderItem[]): Record<string, ReceivedDto>;