/**
 * WebSocket Client (FEAT-003)
 *
 * Direct WebSocket connection for replaying learned patterns without browser.
 * Supports plain WebSocket, Socket.IO, and SSE.
 */
import { EventEmitter } from 'events';
import type { WebSocketReplayOptions, WebSocketReplayResult } from '../types/websocket-patterns.js';
/**
 * WebSocket client for direct connection replay
 */
export declare class WebSocketClient extends EventEmitter {
    private ws;
    private messages;
    private errors;
    private connectedAt;
    private closedAt;
    /**
     * Connect to WebSocket using learned pattern
     */
    connect(options: WebSocketReplayOptions): Promise<WebSocketReplayResult>;
    /**
     * Connect using plain WebSocket
     */
    private connectPlainWebSocket;
    /**
     * Connect using Socket.IO (using WebSocket under the hood)
     */
    private connectSocketIO;
    /**
     * Convert Socket.IO URL to WebSocket URL
     */
    private convertSocketIOToWebSocket;
    /**
     * Build connection URL with auth
     */
    private buildConnectionUrl;
    /**
     * Build connection headers
     */
    private buildConnectionHeaders;
    /**
     * Send message through WebSocket
     */
    private send;
    /**
     * Handle received message
     */
    private handleMessage;
    /**
     * Close WebSocket connection
     */
    private close;
    /**
     * Build replay result
     */
    private buildResult;
}
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