import * as plugins from '../plugins.js';
import { type INetworkProxyOptions } from './classes.np.types.js';
import { ConnectionPool } from './classes.np.connectionpool.js';
import { ProxyRouter } from '../classes.router.js';
/**
 * Handles WebSocket connections and proxying
 */
export declare class WebSocketHandler {
    private options;
    private connectionPool;
    private router;
    private heartbeatInterval;
    private wsServer;
    private logger;
    constructor(options: INetworkProxyOptions, connectionPool: ConnectionPool, router: ProxyRouter);
    /**
     * Initialize WebSocket server on an existing HTTPS server
     */
    initialize(server: plugins.https.Server): void;
    /**
     * Start the heartbeat interval to check for inactive WebSocket connections
     */
    private startHeartbeat;
    /**
     * Handle a new WebSocket connection
     */
    private handleWebSocketConnection;
    /**
     * Get information about active WebSocket connections
     */
    getConnectionInfo(): {
        activeConnections: number;
    };
    /**
     * Shutdown the WebSocket handler
     */
    shutdown(): void;
}