/**
 * Service Worker specific type definitions
 */

// Extend the global scope for Service Worker context
declare const self: ServiceWorkerGlobalScope;

// Service Worker event types
interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
  addEventListener(type: 'install', listener: (event: ExtendableEvent) => void): void;
  addEventListener(type: 'activate', listener: (event: ExtendableEvent) => void): void;
  addEventListener(type: 'fetch', listener: (event: FetchEvent) => void): void;
  addEventListener(type: 'message', listener: (event: ExtendableMessageEvent) => void): void;
  skipWaiting(): Promise<void>;
  clients: Clients;
}

// Extend ExtendableEvent to include waitUntil
interface ExtendableEvent extends Event {
  waitUntil(promise: Promise<any>): void;
}

// Extend FetchEvent
interface FetchEvent extends ExtendableEvent {
  request: Request;
  clientId: string;
  handled: Promise<undefined>;
  preloadResponse: Promise<Response | undefined>;
  respondWith(response: Response | Promise<Response>): void;
}

// Extend ExtendableMessageEvent
interface ExtendableMessageEvent extends ExtendableEvent {
  data: any;
  origin: string;
  lastEventId: string;
  source: Client | ServiceWorker | MessagePort | null;
  ports: ReadonlyArray<MessagePort>;
}