import { Subject } from 'rxjs';
import { IRootState } from './redux/reducers/root-state';
/**
 * Dependency free uuid generator
 *
 * @param {*} [a]
 * @returns {string}
 */
export declare function uuid(a?: any): string;
/**
 * The changed setting
 *
 * @export
 * @interface ISettingsChange
 */
export interface ISettingsChange {
    name: 'language' | 'defaultToken' | 'userToken' | 'sentinelEndPointUrl' | 'applicationToken' | 'currentOrderId';
    old: any;
    new: any;
}
/**
 * A persisted state
 *
 * @export
 * @interface ISavedState
 */
export interface ISavedState {
    state: IRootState;
}
export declare type TDefaultCallUserType = 'employee' | 'customer' | undefined;
/**
 * Settings for the EVA Redux SDK
 *
 * @export
 * @class Settings
 */
export declare class Settings {
    /**
     * The settings change stream
     * Not all settings are emitted. Only the following:
     *
     * - language
     * - defaultToken
     * - userToken
     *
     * @type {Subject<ISettingsChange>}
     * @memberof Settings
     */
    changes$: Subject<ISettingsChange>;
    /**
     * The callback variant for the change stream
     *
     * @memberof Settings
     */
    changeCallback: (changedSetting: ISettingsChange) => void;
    /**
     * Getter method for the defaultToken
     *
     * @type {string}
     * @memberof Settings
     */
    get defaultToken(): string;
    /**
     * Sets the user token and emits the changed value
     *
     * @memberof Settings
     */
    set defaultToken(token: string);
    /**
     * Getter method for the userToken
     *
     * @type {string}
     * @memberof Settings
     */
    get userToken(): string;
    /**
     * Sets the user token and emits the changed value
     *
     * @memberof Settings
     */
    set userToken(token: string);
    /**
     * Getter method for the applicationToken
     *
     * @type {string}
     * @memberof Settings
     */
    get applicationToken(): string;
    /**
     * Sets the user token and emits the changed value
     *
     * @memberof Settings
     */
    set applicationToken(token: string);
    /**
     * Getter method for the applicationToken
     *
     * @type {string}
     * @memberof Settings
     */
    get currentOrderId(): number;
    /**
     * Sets the user token and emits the changed value
     *
     * @memberof Settings
     */
    set currentOrderId(orderId: number);
    /**
     * Getter method for the language
     *
     * @type {string}
     * @memberof Settings
     */
    get language(): string;
    /**
     * Sets the language and emits the changed value
     *
     * @memberof Settings
     */
    set language(newLanguage: string);
    /**
     * Getter method for the sentinel endpoint
     *
     * @type {string}
     * @memberof Settings
     */
    get sentinelEndPointUrl(): string | undefined;
    /**
     * Sets the sentinel endpoint and emits the changed value
     *
     * @memberof Settings
     */
    set sentinelEndPointUrl(newEndpointUrl: string | undefined);
    /**
     * By default the sentinel will handle parseBarcode calls when it is
     * available. Use this setting to disable that behavior.
     * You can always use `sentinel.performance.parseBarcode(..)` manually
     *
     */
    disableSentinelParseCode: boolean;
    /**
     * This setting can be used to keep using the last known sentinel endpoint
     * when the application configuration has none defined
     * Useful for debugging and fixed store deployments
     *
     */
    preserveLastKnownSentinel: boolean;
    /**
     * The EVA backend end point URL that will be used for all requests
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    endPointURL: string;
    /**
     * The EVA communicator backend end point URL that will be used for signalr
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    communicatorEndPointURL?: string;
    /**
     * The client version used for calls from this SDK.
     * Used for the ClientVersion header field value
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    readonly clientVersion: string;
    /**
     * The client name used for calls from this SDK.
     * Used for the ClientName header field value
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    readonly clientName: string;
    /**
     * The app version used for calls from this SDK.
     * Used for the Eva-User-Agent header field value
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    appVersion: string;
    /**
     * The app name used for calls from this SDK.
     * Used for the Eva-User-Agent header field value
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    appName: string;
    /**
     * The default included product properties for services such as:
     *
     * - Core.GetOrder
     * - Core.GetShoppingCart
     * - Core.SearchProducts
     * - Core.GetProducts
     * - Core.GetBundleProductDetails
     * - Core.ListProductBundles
     *
     * This is not an exhaustive list. In a service request these can be either
     * called IncludedFields or ProductProperties.
     *
     * @type {string[]}
     */
    defaultProductProperties: string[];
    /**
     * The additional request options for the getShoppingCart state.
     * Defaults are set to retrieve the most logical data needed
     * before entering the checkout. Discounts, product requirements, etc.
     *
     * @type {EVA.Core.AdditionalOrderDataOptions}
     */
    shoppingCartOptions: EVA.Core.AdditionalOrderDataOptions;
    /**
     * Optional chain to fetch availability indication for the products in the cart
     *
     */
    enableGetShoppingCartProductAvailabilityIndication: boolean;
    /**
     * The additional request options for the getOrder state.
     * Defaults are set to retrieve the most logical data needed
     * during the checkout. Shipping methods, payment methods, etc.
     *
     * @type {EVA.Core.AdditionalOrderDataOptions}
     */
    currentOrderOptions: EVA.Core.AdditionalOrderDataOptions;
    /**
     * The additional request options for the searchProducts state.
     * Defaults are to enable retrieving of availability and discounts
     *
     * @type {EVA.Core.SearchProductsOptions}
     */
    productSearchOptions: EVA.Core.SearchProductsOptions;
    /**
     * Enables sorting of discount tiers on from value before calculating
     * tier change
     *
     * @type {boolean}
     * @memberof Settings
     */
    enableDiscountTierSorting: boolean;
    /**
     * Add product to order placeholder are stacked by default
     * Meaning that if the product is already in the cart no placeholder will be
     * added
     *
     * @type {boolean}
     * @memberof Settings
     */
    placeholderStacking: boolean;
    /**
     * Enabled debug logging for the SDK
     *
     * @type {boolean}
     * @memberof Settings
     */
    enableLogging: boolean;
    /**
     * Can be used by clients to set the current station ID header value
     * This should always reflect the ID from the station of the `ListStationsForOrganization` response
     *
     * @type {number}
     */
    currentStationID?: number;
    /**
     * Can be used to set the `EVA-Requested-OrganizationUnitID` header.
     * This is used to select a specific organization unit when making calls without
     * a specific user token by ID.
     *
     * @type {number}
     */
    requestedOrganizationUnitID?: number;
    /**
     * Can be used to set the `EVA-Requested-OrganizationUnit-Query` header.
     * This is used to select a specific organization unit when making calls without
     * a specific user token using an exact match query on name and backend id.
     *
     *
     * @type {{ Name: string; BackendID: string; }}
     */
    requestedOrganizationUnitQuery?: {
        Name: string;
        BackendID: string;
    };
    /**
     * Can be used to set the `EVA-IDs-Mode` header which can be used to let the EVA
     * backend to use external identifiers instead of EVA identifiers for
     * things like products.
     * Is usually set using the service settings but can be overridden per call
     * using this setting
     *
     * @type {string}
     */
    backendIdMode?: string;
    /**
     * Used to populate the `EVA-IDs-BackendSystemID` header which can be sent
     * along with the `EVA-IDs-Mode` header to enable response metadata to help
     * with mapping identifiers between EVA and an external system
     *
     * @type {string}
     */
    backendIdSystemID?: string;
    /**
     * Whether this is an employee app or not, we will use to determine whether to add an extra property to some
     * services
     *
     * @see  https://eva2015.atlassian.net/browse/OPTR-6866
     *
     * @type {TDefaultCallUserType}
     * @memberof Settings
     */
    defaultCallUserType: TDefaultCallUserType;
    /**
     * Cart changes post-login filter out older order lines. This ensure we do not
     * get changes from an anonymous cart being claimed. Newer lines can include
     * welcome gift for instance.
     * Default allowed age is 300000ms (5 minutes)
     *
     * @type {number}
     */
    cartChangeLoginOrderLineAge: number;
    /**
     * The default anonymous token used for authentication
     * Access is provided using a getter and a setter for the changes$ feed
     *
     * @private
     * @type {string}
     * @memberof Settings
     */
    private theDefaultToken;
    /**
     * The user token used for authentication
     * Access is provided using a getter and a setter for the changes$ feed
     *
     * @private
     * @type {string}
     * @memberof Settings
     */
    private theUserToken;
    /**
     * The application token used for anonymous cart authentication
     * Access is provided using a getter and a setter for the changes$ feed
     *
     * @private
     * @type {string}
     * @memberof Settings
     */
    private theApplicationToken;
    /**
     * The current order id
     *
     * @private
     * @type {number}
     */
    private theCurrentOrderId;
    /**
     * The accept-language for all service calls
     * Access is provided using a getter and a setter for the changes$ feed
     *
     * @private
     * @type {string}
     * @memberof Settings
     */
    private theLanguage;
    /**
     * The EVA Sentinel backend end point URL that will be used for on premise features
     *
     * @public
     * @type {string}
     * @memberof Settings
     */
    theSentinelEndPointURL?: string;
    /**
     * Used to populate the `EVA-App-InstanceId` header which is useful for debugging and diagnostics in the back-end analytics
     *
     * @type {string}
     */
    applicationInstanceId?: string;
    /**
     * Callback done before each fetch call
     *
     */
    beforeFetch?: (params: {
        serviceContext: string;
        chainContext?: string;
        url: string;
        serviceName: string;
        requestPayload: any;
    }) => void;
    /**
     * Callback done after each fetch call
     *
     */
    afterFetch?: (params: {
        serviceContext: string;
        chainContext?: string;
        url: string;
        serviceName: string;
        status: number;
        requestPayload: any | undefined;
        responsePayload: any | undefined;
        responseError?: any;
    }) => void;
    /**
     * The in memory state store for logged in users
     *
     * @private
     * @type {{ [userId: number]: ISavedState }}
     * @memberof Settings
     */
    private stateMemory;
    /**
     * Saves a users state in memory for reuse
     *
     * @param {IRootState} state The state to preserve
     * @memberof Settings
     */
    saveState(userId: number, state: IRootState): void;
    /**
     * Retrieves a previously stored state
     *
     * @param {number} userId The users identifier
     * @returns
     * @memberof Settings
     */
    getSavedState(userId: number): ISavedState;
    /**
     * Removes any save state for a user
     *
     * @param {number} userId
     * @memberof Settings
     */
    purgeSavedState(userId: number): void;
    /**
     * Removes all cached states
     *
     * @memberof Settings
     */
    purgeAllSavedStates(): void;
}
export declare const settings: Settings;