import { KiotVietClient } from '../client';
import { PurchaseOrder, PurchaseOrderCreateParams, PurchaseOrderUpdateParams, PurchaseOrderListParams, PurchaseOrderListResponse } from '../types/purchase-order';
export declare class PurchaseOrderHandler {
    private client;
    constructor(client: KiotVietClient);
    /**
     * List purchase orders with optional filtering
     * @param params Filter parameters
     */
    list(params?: PurchaseOrderListParams): Promise<PurchaseOrderListResponse>;
    /**
     * Get a purchase order by its ID
     * @param purchaseOrderId The ID of the purchase order to retrieve
     */
    getById(purchaseOrderId: number): Promise<PurchaseOrder>;
    /**
     * Create a new purchase order
     * @param purchaseOrderData The purchase order data to create
     */
    create(purchaseOrderData: PurchaseOrderCreateParams): Promise<PurchaseOrder>;
    /**
     * Update an existing purchase order
     * @param purchaseOrderId The ID of the purchase order to update
     * @param purchaseOrderData The purchase order data to update
     */
    update(purchaseOrderId: number, purchaseOrderData: Partial<PurchaseOrderUpdateParams>): Promise<PurchaseOrder>;
    /**
     * Cancel a purchase order
     * @param purchaseOrderId The ID of the purchase order to cancel
     * @param reason Optional cancellation reason
     */
    cancel(purchaseOrderId: number, reason?: string): Promise<PurchaseOrder>;
    /**
     * Get purchase orders by date range
     * @param fromDate Start date (YYYY-MM-DD)
     * @param toDate End date (YYYY-MM-DD)
     * @param params Additional filter parameters
     */
    getByDateRange(fromDate: string, toDate: string, params?: Omit<PurchaseOrderListParams, 'fromPurchaseDate' | 'toPurchaseDate'>): Promise<PurchaseOrderListResponse>;
    /**
     * Get purchase orders by supplier code
     * @param supplierCode The supplier code to filter by
     * @param params Additional filter parameters
     */
    getBySupplier(supplierCode: string, params?: Omit<PurchaseOrderListParams, 'supplierCode'>): Promise<PurchaseOrderListResponse>;
}