import { BaseChannel } from './index';
/**
 * WebSocket Channel — v1.1.0
 *
 * Enhanced with:
 * - Room support (multiple clients in a room)
 * - Heartbeat/ping-pong to detect disconnected clients
 * - Reconnection handling (session persistence)
 * - Binary message support
 * - Connection authentication (optional token in query string)
 */
export interface WebSocketChannelConfig {
    port?: number;
    /** Heartbeat interval in ms (default: 30000) */
    heartbeatInterval?: number;
    /** Valid auth tokens (if empty, no auth required) */
    authTokens?: string[];
    /** Max clients per room (default: 100) */
    maxClientsPerRoom?: number;
}
export declare class WebSocketChannel extends BaseChannel {
    readonly type = "websocket";
    private wss;
    private config;
    private clients;
    private rooms;
    private heartbeatTimer;
    constructor(configOrPort?: number | WebSocketChannelConfig);
    start(): Promise<void>;
    stop(): Promise<void>;
    /** Handle text (JSON) messages */
    private handleTextMessage;
    /** Handle binary messages */
    private handleBinaryMessage;
    /** Join a room */
    joinRoom(sessionId: string, roomId: string): boolean;
    /** Leave a room */
    leaveRoom(sessionId: string, roomId: string): void;
    /** Remove client completely */
    private removeClient;
    /** Get room member session IDs */
    getRoomMembers(roomId: string): string[];
    /** Get all rooms */
    getRooms(): string[];
    /** Broadcast to all clients */
    broadcast(content: string): void;
    /** Broadcast to all clients in a room */
    broadcastToRoom(roomId: string, data: any, excludeSessionId?: string): void;
    /** Send to specific session */
    sendToSession(sessionId: string, data: any): boolean;
    /** Get connection stats */
    getStats(): {
        clients: number;
        rooms: number;
        roomDetails: Record<string, number>;
    };
}
//# sourceMappingURL=websocket.d.ts.map