/**
 * Dashboard WebSocket Server
 * Real-time event streaming for dashboard using Socket.io
 * Emits metrics, agent updates, and cache events
 */
import { Server as SocketIOServer } from 'socket.io';
import http from 'http';
import { OrchestrationEngine } from './OrchestrationEngine';
export declare class DashboardWebSocketServer {
    private io;
    private orchestrationEngine;
    private server;
    private broadcastInterval;
    private port;
    private eventLog;
    constructor(httpServer: http.Server, port?: number);
    /**
     * Setup Socket.io event handlers
     */
    private setupHandlers;
    /**
     * Set orchestration engine reference
     */
    setOrchestrationEngine(engine: OrchestrationEngine): void;
    /**
     * Start broadcasting metrics
     */
    startBroadcasting(intervalMs?: number): void;
    /**
     * Stop broadcasting
     */
    stopBroadcasting(): void;
    /**
     * Emit agent joined event
     */
    emitAgentJoined(agentId: string, agentName: string, capabilities: string[]): void;
    /**
     * Emit agent left event
     */
    emitAgentLeft(agentId: string): void;
    /**
     * Emit agent error event
     */
    emitAgentError(agentId: string, errorMessage: string): void;
    /**
     * Emit cache hit event
     */
    emitCacheHit(queryHash: string, latency: number, tokensSaved: number, costSaved: number): void;
    /**
     * Emit cache miss event
     */
    emitCacheMiss(queryHash: string, latency: number): void;
    /**
     * Get event log (keep last 1000 events)
     */
    getEventLog(): any[];
    /**
     * Log event internally
     */
    private logEvent;
    /**
     * Clear event log
     */
    clearEventLog(): void;
    /**
     * Get Socket.io instance
     */
    getIO(): SocketIOServer;
}
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