/**
 * WebSocket Manager - Manages WebSocket connections for terminals
 */
import { EventEmitter } from 'events';
/**
 * WebSocket Manager Configuration
 */
export interface WebSocketManagerConfig {
    port: number;
    heartbeatInterval: number;
    connectionTimeout: number;
    maxConnections: number;
    messageQueueSize: number;
    enableCompression: boolean;
}
/**
 * WebSocket Manager
 */
export declare class WebSocketManager extends EventEmitter {
    private config;
    private wss?;
    private connections;
    private heartbeatTimer?;
    private logger;
    constructor(config?: Partial<WebSocketManagerConfig>);
    /**
     * Start WebSocket server
     */
    start(): void;
    /**
     * Stop WebSocket server
     */
    stop(): void;
    /**
     * Handle new connection
     */
    private handleConnection;
    /**
     * Handle message from terminal
     */
    private handleMessage;
    /**
     * Handle pong response
     */
    private handlePong;
    /**
     * Handle terminal disconnect
     */
    private handleDisconnect;
    /**
     * Send message to terminal
     */
    sendToTerminal(terminalId: string, message: any): boolean;
    /**
     * Broadcast message to all terminals
     */
    broadcast(message: any, exclude?: string[]): void;
    /**
     * Start heartbeat monitoring
     */
    private startHeartbeat;
    /**
     * Stop heartbeat monitoring
     */
    private stopHeartbeat;
    /**
     * Extract terminal ID from request
     */
    private extractTerminalId;
    /**
     * Get connection status for terminal
     */
    getConnectionStatus(terminalId: string): any;
    /**
     * Get all connected terminals
     */
    getConnectedTerminals(): string[];
    /**
     * Get connection count
     */
    getConnectionCount(): number;
    /**
     * Check if terminal is connected
     */
    isConnected(terminalId: string): boolean;
}
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