import { type StoreState } from '../index.js';
import type { OrderItem } from '@farfetch/blackout-client';
/**
 * Returns the exchange result from the application state.
 *
 * @param state - Application state.
 *
 * @returns Returns exchange result.
 */
export declare const getExchange: (state: StoreState) => import("../index.js").Nullable<import("@farfetch/blackout-client").Exchange>;
/**
 * Returns the exchange error.
 *
 * @param state - Application state.
 *
 * @returns Exchange error.
 */
export declare const getExchangeError: (state: StoreState) => import("../index.js").Nullable<import("@farfetch/blackout-client").BlackoutError>;
/**
 * Returns the loading status of the exchanges area.
 *
 * @param state - Application state.
 *
 * @returns Loader status.
 */
export declare const areExchangesLoading: (state: StoreState) => boolean;
/**
 * Retrieves if the exchange has been fetched.
 *
 * Will return true if an exchange request
 * has been made that returned either successfully or failed
 * and false otherwise.
 *
 * @param state - Application state.
 *
 * @returns isFetched status of the exchange.
 */
export declare const isExchangeFetched: (state: StoreState) => boolean;
/**
 * Returns the exchange filter by id.
 *
 * @param state - Application state.
 *
 * @returns Exchange filter.
 */
export declare const getExchangeFilterById: (state: StoreState, orderItemUuid: OrderItem['shippingOrderLineId']) => import("@farfetch/blackout-client").ExchangeFilter | undefined;
/**
 * Returns the exchange filters.
 *
 * @param state - Application state.
 *
 * @returns Exchange filters.
 */
export declare const getExchangeFilters: (state: StoreState) => Record<string, import("@farfetch/blackout-client").ExchangeFilter> | undefined;
/**
 * Returns the loading flag for the exchange filter area actions.
 *
 * @param state - Application state.
 *
 * @returns Loading status.
 */
export declare const isExchangeFilterLoading: (state: StoreState, orderItemUuid?: OrderItem['shippingOrderLineId']) => boolean | undefined;
/**
 * Returns the error for the exchange filter area actions.
 *
 * @param state - Application state.
 *
 * @returns Exchange filter error.
 */
export declare const getExchangeFilterError: (state: StoreState, orderItemUuid?: OrderItem['shippingOrderLineId']) => import("@farfetch/blackout-client").BlackoutError | null | undefined;
/**
 * Returns the exchange book request.
 *
 * @param state - Application state.
 *
 * @returns Exchange book request.
 */
export declare const getExchangeBookRequest: (state: StoreState) => import("../index.js").Nullable<import("@farfetch/blackout-client").ExchangeBookRequest>;
/**
 * Returns the loading flag for the exchange book request area actions.
 *
 * @param state - Application state.
 *
 * @returns Loading status.
 */
export declare const isExchangeBookRequestLoading: (state: StoreState) => boolean;
/**
 * Returns the error for the exchange book request area actions.
 *
 * @param state - Application state.
 *
 * @returns Exchange book request error.
 */
export declare const getExchangeBookRequestError: (state: StoreState) => import("../index.js").Nullable<import("@farfetch/blackout-client").BlackoutError>;
/**
 * Retrieves if the exchange book request has been fetched.
 *
 * Will return true if an exchange book request request
 * has been made that returned either successfully or failed
 * and false otherwise.
 *
 * @param state - Application state.
 *
 * @returns isFetched status of the exchange book request.
 */
export declare const isExchangeBookRequestFetched: (state: StoreState) => boolean;