import type WebSocket from 'ws';
import { type CertificateEvent, type SecretEvent, type AgentUpdateEvent, type ApiKeyRotationEvent, type HostConfigEvent, type DegradedConnectionInfo, type UnifiedAgentEvent } from './types.js';
/**
 * Message dispatcher for handling incoming WebSocket messages.
 * Routes messages to appropriate handlers based on message type.
 */
export declare class MessageDispatcher {
    private readonly handlers;
    private registeredAgentId;
    private readonly managedKeyNames;
    private readonly onPongReceived;
    private readonly apiKeyDedup;
    constructor(options: {
        managedKeyNames: string[];
        onPongReceived: () => void;
    });
    /** Test seam: clear the apikey deliveryId dedup cache. */
    resetDedupForTesting(): void;
    /**
     * Handle an incoming WebSocket message.
     */
    handleMessage(ws: WebSocket | null, message: UnifiedAgentEvent): void;
    private handleEventMessage;
    private handleConnectionEstablished;
    private handleDegradedConnection;
    private handleReprovisionAvailable;
    /**
     * Handle a top-level `update-available` message.
     *
     * The vault server sends operator-initiated update triggers as a top-level
     * message ({type:'update-available', version, channel, force, timestamp}) —
     * the fields live at the top level, NOT under `data`. See vault
     * src/routes/agent-updates.ts and unified-agent-websocket/index.ts
     * (broadcastUpdateAvailable). The legacy `{type:'event', topic:'updates'}`
     * path in handleEventMessage is kept for back-compat.
     */
    private handleUpdateAvailable;
    /**
     * Get the registered agent ID.
     */
    getAgentId(): string | null;
    /**
     * Clear the registered agent ID.
     */
    clearAgentId(): void;
    onCertificateEvent(handler: (event: CertificateEvent) => void): void;
    onSecretEvent(handler: (event: SecretEvent) => void): void;
    onUpdateEvent(handler: (event: AgentUpdateEvent) => void): void;
    onApiKeyRotationEvent(handler: (event: ApiKeyRotationEvent) => void): void;
    onHostConfigEvent(handler: (event: HostConfigEvent) => void): void;
    onDegradedConnection(handler: (info: DegradedConnectionInfo) => void): void;
    onReprovisionAvailable(handler: (expiresAt: string) => void): void;
    onConnect(handler: (agentId: string) => void): void;
    onDisconnect(handler: (reason: string) => void): void;
    onError(handler: (error: Error) => void): void;
    offCertificateEvent(handler: (event: CertificateEvent) => void): void;
    offSecretEvent(handler: (event: SecretEvent) => void): void;
    /**
     * Remove all handlers.
     */
    removeAllHandlers(): void;
    /**
     * Fire disconnect handlers.
     */
    fireDisconnect(reason: string): void;
    /**
     * Fire error handlers.
     */
    fireError(error: Error): void;
}
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