import type { RealtimeEvent, Topic } from "../common/realtime-event";
export interface ClientConnectedEventData {
    clientId: string;
    topic: Topic;
    timestamp: Date;
    metadata?: Record<string, unknown>;
}
export interface ClientDisconnectedEventData {
    clientId: string;
    topics: Topic[];
    timestamp: Date;
}
export interface MessageReceivedEventData {
    clientId: string;
    message: Record<string, unknown>;
    timestamp: Date;
}
export type ServerEventType = "client.connected" | "client.disconnected" | "message.received";
/**
 * Server statistics
 */
export interface RealtimeServerStats {
    connectedClients: number;
    totalTopics: number;
    messagesSent: number;
    messagesReceived: number;
    uptime: number;
    averageLatency?: number;
}
/**
 * Configuration options for RealtimeServer
 */
export interface RealtimeServerOptions<TTransportOptions = unknown> {
    /**
     * Authentication configuration
     */
    auth?: {
        enabled: boolean;
        validateToken?: (token: string) => Promise<boolean>;
        extractClaims?: (token: string) => Promise<Record<string, unknown>>;
    };
    /**
     * Client connection limits
     */
    limits?: {
        maxConnections?: number;
        maxTopicsPerClient?: number;
        messageRateLimit?: number;
    };
    /**
     * Transport-specific options
     */
    transportOptions?: TTransportOptions;
}
/**
 * SERVER-SIDE: Broadcast events to connected clients
 */
export interface RealtimeServer {
    /**
     * Start the server
     */
    start(): Promise<void>;
    /**
     * Stop the server
     */
    stop(): Promise<void>;
    /**
     * Broadcast an event to all subscribers of a topic
     * @param topic Target topic
     * @param event Event to broadcast
     */
    broadcast(topic: Topic, event: RealtimeEvent): Promise<void>;
    /**
     * Send event to specific client (optional feature)
     * @param clientId Target client ID
     * @param event Event to send
     */
    sendToClient?(clientId: string, event: RealtimeEvent): Promise<void>;
    /**
     * Get server stats
     */
    getStats(): RealtimeServerStats;
    /**
     * Register event listeners for server events
     */
    on<T extends ServerEventType>(event: T, handler: (data: unknown) => void): void;
}