import type { ServerWebSocket } from 'bun';
import type { ClientBridgeEvent, IClientBridge } from '../../types/public-types.js';
type BunSocket = ServerWebSocket<unknown>;
/**
 * Manages WebSocket subscribers and broadcasts development events.
 * Bridges the gap between the server and the development client.
 */
export declare class ClientBridge implements IClientBridge {
    private subscribers;
    subscribe(ws: BunSocket): void;
    unsubscribe(ws: BunSocket): void;
    /**
     * Broadcast a raw event to all connected clients.
     */
    broadcast(event: ClientBridgeEvent): void;
    /**
     * Trigger a full page reload on all connected clients.
     */
    reload(): void;
    /**
     * Broadcast a CSS update for hot stylesheet reload.
     */
    cssUpdate(path: string): void;
    /**
     * Broadcast a JS module update for hot module replacement.
     */
    update(path: string): void;
    /**
     * Broadcast an error message to connected clients.
     */
    error(message: string): void;
    get subscriberCount(): number;
    destroy(): void;
}
export {};