import type AMSCheckout from '../../core/instance';
import type { IcreatePaymentParams, eventPayload } from '../../types';
export default class CheckoutApp {
    app: any;
    paymentMethodsResult: any;
    appDomain: string;
    AMSSDK: AMSCheckout;
    private _render;
    private _selector;
    private _version;
    constructor();
    /**
     * @description When SDK registers plug-ins, it is a required function to receive SDK instances
     */
    applyPlugin(AMSSDK: AMSCheckout): void;
    /**
     * @description Set the rendering capability of the cashier plug-in. Different technology stacks have some differences in the packaging and use of rendering functions
     */
    setRender(createIframeNode: any): void;
    /**
     * @description High order function of rendering capability
     */
    render(renderParams: IcreatePaymentParams): Promise<void>;
    /**
     * @description Cancel listening and destroy the dom
     */
    logoutPlugin(): void;
    /**
     * @description Create app
     */
    private _createApp;
    private _getIframeUrl;
    /**
     * @description Create iframe
     */
    private _createIframe;
    /**
     * @description Get iftame id
     */
    private _getIframeId;
    _listener(e: any): void;
    /**
     * @description Initialize subscription iframe message
     */
    _addEventListener(): void;
    _removeEventListener(): void;
    /**
     * @description Processing messages from iframe
     */
    _handleAppMessage(data: eventPayload): void;
    /**
     * @description Send message to SDK
     */
    _dispatchToSDK(data: eventPayload): void;
    /**
     * @description Send message to iframe
     */
    _dispatchToApp(data: eventPayload): void;
    /**
     * @description Subscribe to messages from SDK
     */
    _subscribeFromSDK(): void;
    /**
     * @description Send rendering events to iframe
     */
    _renderPaymentMethods(paymentResult: any): void;
    /**
     * @description Send the post submission processing event, and the cashier applies the consumption result
     */
    _handleRequestPayment(data: eventPayload): void;
}