import { Callback } from "../types/components/containers";
import { AccountStateAction } from "../types/profile";
import { NamiCustomerJourneyStateHandler } from "../types/customer";
import { CustomerJourneyState } from "../types/externals/customer";
type AccountStateHandler = (action: AccountStateAction, success: boolean, error?: Error) => void;
/**
 * @class NamiCustomerManager
 * Provides methods for managing customer-related functionality.
 */
export declare class NamiCustomerManager {
    static instance: NamiCustomerManager;
    private emitter;
    /**
     * Checks if the customer is logged in.
     *
     * @returns {boolean} Returns true if the customer is logged in, false otherwise.
     */
    static isLoggedIn(): boolean;
    /**
     * Returns the external ID of the currently logged in user.
     *
     * @returns {string | undefined} The external ID of the logged in user.
    */
    static loggedInId(): string | undefined;
    /**
     * Logs in a customer with the specified ID.
     *
     * @param id - The ID of the customer to log in. Must be a SHA256 hash or UUID.
     * @returns {Promise<void>} A Promise that resolves when the login is successful.
    */
    static login(externalId: string): Promise<void>;
    /**
     * This method detaches the whole platform account from the signed in user
     * @returns {Promise<void>} A Promise that resolves when the logout is successful.
     */
    static logout(): Promise<void>;
    /**
     * This method for connecting the device to a Customer Data Platform identifier
     *
     * Advanced use case. Make sure you have user consent.
     *
     * @param id a value supplied from your CDP platform
     * @returns {Promise<void>} A Promise that resolves when CustomerDataPlatformId will be set.
     */
    static setCustomerDataPlatformId(id: string): Promise<void>;
    /**
     * This method for clearing the Customer Data Platform identifier linked to this device
     *
     * Advanced use case.
     * @returns {Promise<void>} A Promise that resolves when CustomerDataPlatformId will be cleared.
     */
    static clearCustomerDataPlatformId(): Promise<void>;
    /**
     * Registers a callback function to handle changes in the account state.
     *
     * @param callback - The callback function to be registered.
     * @returns {Callback} A function that can be used to unregister the original callback.
     */
    static registerAccountStateHandler(handler: AccountStateHandler): Callback;
    /**
     * Sets the anonymous mode for the customer.
     *
     * @param enabled - A boolean value indicating whether the anonymous mode should be enabled or disabled.
     * @returns {Promise<void>} A Promise that resolves when the anonymous mode is set.
     */
    static setAnonymousMode(enabled: boolean): Promise<void>;
    /**
     * @returns {boolean} whether or not the SDK is currently operating in anonymous mode
     */
    static inAnonymousMode(): boolean;
    /**
     * Sets an optional customer attributes that can be used to personalize your Nami paywalls.
     *
     * @param key - The name of the attribute. For example: `firstName`.
     * @param value - The value of the customer attribute. For example: `Joe`.
     */
    static setCustomerAttribute(key: string, value: string): void;
    /**
     * Retrieves the value for a given key in the on-device customer attribute key/value store.
     *
     * @param key - The name of the attribute. For example: `firstName`
     * @returns {string | null} The value of the customer attribute.
     */
    static getCustomerAttribute(key: string): string | null;
    /**
    * Retrieves all the customer attribute key/value store.
    *
    * @returns {string | null} The value of the customer attribute.
    */
    static getAllCustomerAttributes(): string[];
    /**
     * Clears a value of the given key in the on-device key/value store.
     *
     * @param key - The key of the customer attribute to clear.
     */
    static clearCustomerAttribute(key: string): void;
    /**
     * Clear all customer attributes from the on-device key/value store.
     */
    static clearAllCustomerAttributes(): void;
    /**
     * @return current customer's journey state.
     */
    static journeyState(): CustomerJourneyState | null;
    /**
     * @return the unique identifier Nami users to identify this device. Please note
     * you should not depend on the device identifier persisting across app re-installs.
     */
    static deviceId(): string;
    /**
     * When there has been an update received to the active entitlements,
     * the Nami SDK will provide notification of that event through
     * this callback with list of active [NamiEntitlement]
     *
     * @param {NamiCustomerJourneyStateHandler} handler - The callback function that will be invoked when the campaign list is updated.
     * @returns {Callback} A function that can be called to unregister the handler.
     */
    static registerJourneyStateHandler(handler: NamiCustomerJourneyStateHandler): Callback | undefined;
    /**
     * Private Static Methods
     */
    private static invokeStateHandler;
    /**
     * Private Instance Methods
     */
    private get isSDKInitialized();
    private static updateCustomerDataPlatformId;
    /**
     * @returns whether or not the configured app platform id belongs to an anonymous mode
     * capable Nami account.
     */
    private static anonymousModeCapability;
    private static refetchConfig;
}
export {};