import { NativeEventEmitter, EmitterSubscription } from 'react-native';
import type { ActiveProduct, BillingStatus, BuyOptions, EventName, Product, GetProductsOptions, Products, RestoreResponse, Transaction, ShowManageSubscriptionsOptions, StartOptions } from './types';
export default class Iaphub {
    nativeEventEmitter: NativeEventEmitter;
    errorListener?: EmitterSubscription;
    listeners: EmitterSubscription[];
    constructor();
    /**
     * Add event listener
     * @param name Native event emitted by the SDK.
     * @param callback Handler invoked with the event payload.
     */
    addEventListener(name: EventName, callback: (data: any) => void): EmitterSubscription;
    /**
     * Remove event listener
     * @param listener Subscription returned by `addEventListener`.
     */
    removeEventListener(listener: EmitterSubscription): boolean;
    /**
     * Remove all listeners
     */
    removeAllListeners(): void;
    /**
     * Start Iaphub
     * @param opts Overall configuration object.
     * @param opts.appId IAPHUB app ID from the IAPHUB dashboard.
     * @param opts.apiKey IAPHUB Client API key from the IAPHUB dashboard.
     * @param opts.userId Optional user ID associated with the authenticated account.
     * @param opts.allowAnonymousPurchase Whether anonymous purchases are permitted; defaults to `false`.
     * @param opts.enableDeferredPurchaseListener Toggles the deferred purchase listener; defaults to `true`.
     * @param opts.enableStorekitV2 Enables StoreKit V2 when available (iOS 15+); defaults to `false` but enabling it is recommended.
     * @param opts.lang Locale code to localize product titles and descriptions defined on the IAPHUB dashboard (defaults to `en`).
     * @param opts.environment Target Iaphub environment; defaults to `production`.
     * @returns {Promise<void>}
     */
    start(opts: StartOptions): Promise<void>;
    /**
     * Stop Iaphub
     * @returns {Promise<void>}
     */
    stop(): Promise<void>;
    /**
     * Set lang
     * @param {String} lang Locale code (for example `en` or `fr`).
     * @returns {Promise<boolean>}
     */
    setLang(lang: string): Promise<boolean>;
    /**
     * Log in user
     * @param {String} userId Unique identifier of the user.
     * @returns {Promise<void>}
     */
    login(userId: string): Promise<void>;
    /**
     * Get user id
     * @returns {Promise<string>}
     */
    getUserId(): Promise<string>;
    /**
     * Log out user
     * @returns {Promise<void>}
     */
    logout(): Promise<void>;
    /**
     * Set device params
     * @param {Dict} params Key/value pairs with additional device metadata.
     * @returns {Promise<void>}
     */
    setDeviceParams(params: {
        [key: string]: any;
    }): Promise<void>;
    /**
     * Set user tags
     * @param {Dict} tags Key/value pairs describing the user.
     * @returns {Promise<void>}
     */
    setUserTags(tags: {
        [key: string]: any;
    }): Promise<void>;
    /**
     * Buy product
     * @param {String} sku Store identifier to purchase.
     * @param opts Purchase configuration (`crossPlatformConflict` defaults to `true`).
     * @param opts.crossPlatformConflict Throws an error if the user already has a subscription on a different platform; defaults to `true`.
     * @param opts.prorationMode Optional Google Play proration mode to apply when upgrading or downgrading.
     * @returns {Promise<Transaction>}
     */
    buy(sku: string, opts?: BuyOptions): Promise<Transaction>;
    /**
     * Restore purchases
     * @returns {Promise<RestoreResponse>}
     */
    restore(): Promise<RestoreResponse>;
    /**
     * Get active products
     * @param opts Optional filters (default `includeSubscriptionStates` is an empty array, meaning only active and grace period subscriptions are returned).
     * @returns {Promise<ActiveProduct[]>}
     */
    getActiveProducts(opts?: GetProductsOptions): Promise<ActiveProduct[]>;
    /**
     * Get products for sale
     * @returns {Promise<Product[]>}
     */
    getProductsForSale(): Promise<Product[]>;
    /**
     * Get products (active and for sale)
     * @param opts Optional filters (default `includeSubscriptionStates` is an empty array).
     * @param opts.includeSubscriptionStates List of subscription states to include in addition to `active` and `grace_period`.
     * @returns {Promise<Products>}
     */
    getProducts(opts?: GetProductsOptions): Promise<Products>;
    /**
     * Get billing status
     * @returns {Promise<BillingStatus>}
     */
    getBillingStatus(): Promise<BillingStatus>;
    /**
     * Present code redemption (iOS only)
     * @returns {Promise<void>}
     */
    presentCodeRedemptionSheet(): Promise<void>;
    /**
     * Show manage subscriptions page
     * @param opts Optional parameters such as the SKU to highlight.
     * @param opts.sku SKU to highlight when opening the native page.
     * @returns {Promise<void>}
     */
    showManageSubscriptions(opts?: ShowManageSubscriptionsOptions): Promise<void>;
}