import { FlowInstance, FlowEventType, FlowEventCallback, FlowCompletionData, NavigationData, ButtonClickedData, BaseFlowConfig, Environment, ErrorData } from '../types.js';
/**
 * Flow class implementation for handling iframe flows and events
 */
export declare class Flow implements FlowInstance {
    private containerId;
    protected config: BaseFlowConfig;
    protected partnerName: string;
    protected environment: Environment;
    protected branchOverride?: string | undefined;
    protected iframe: HTMLIFrameElement | null;
    protected container: HTMLElement | null;
    private eventListeners;
    protected keepAliveInterval: number | null;
    private messageHandler;
    constructor(containerId: string, config: BaseFlowConfig, partnerName: string, environment: Environment, branchOverride?: string | undefined);
    /**
     * Initialize the flow by creating and injecting the iframe
     */
    initialize(): Promise<void>;
    /**
     * Construct the specific flow URL - can be overridden by subclasses
     */
    protected constructFlowUrl(baseUrl: string): string;
    /**
     * Create flow URL using partner name and environment
     */
    protected createFlowUrl(): string;
    private setupEventListeners;
    /**
     * Emit events to registered listeners
     */
    protected emit(event: 'completed', data: FlowCompletionData): void;
    protected emit(event: 'loaded'): void;
    protected emit(event: 'exit'): void;
    protected emit(event: 'buttonClicked', data: ButtonClickedData): void;
    protected emit(event: 'navigated', data: NavigationData): void;
    protected emit(event: 'authenticationSucceeded'): void;
    protected emit(event: 'authenticationFailed'): void;
    protected emit(event: 'error', data: ErrorData): void;
    protected emit(event: 'onboardingCompleted'): void;
    protected emit(event: 'onboardingRequired'): void;
    /**
     * Register an event listener
     */
    on(event: 'completed', callback: (data: FlowCompletionData) => void): void;
    on(event: 'exit', callback: () => void): void;
    on(event: 'buttonClicked', callback: (data: ButtonClickedData) => void): void;
    on(event: 'navigated', callback: (payload: NavigationData) => void): void;
    on(event: 'authenticationSucceeded', callback: () => void): void;
    on(event: 'authenticationFailed', callback: () => void): void;
    on(event: 'error', callback: (data: ErrorData) => void): void;
    on(event: 'loaded', callback: () => void): void;
    on(event: 'onboardingCompleted', callback: () => void): void;
    on(event: 'onboardingRequired', callback: () => void): void;
    /**
     * Remove an event listener
     */
    off(event: FlowEventType, callback: FlowEventCallback): void;
    /**
     * Close the flow and clean up resources
     */
    close(): void;
}