import { cleanupOutdatedCaches, precacheAndRoute } from "workbox-precaching";
import { clientsClaim } from "workbox-core";
import type { AnyCall } from "./services";

function checkServiceWorker(
  self: WorkerGlobalScope,
): self is ServiceWorkerGlobalScope {
  return !!(self as unknown as ServiceWorkerGlobalScope).registration;
}

if (checkServiceWorker(self)) {
  cleanupOutdatedCaches();
  precacheAndRoute(self.__WB_MANIFEST, {
    cleanURLs: false
  });

  // auto update
  self.skipWaiting();
  clientsClaim();
} else {
  throw new TypeError("This entry point must be run in a service worker");
}

self.addEventListener("message", (event: MessageEvent<AnyCall>) => {
  if (event.data.method === "ping") {
    event.source.postMessage({id: event.data.id, jsonrpc: "2.0", result: undefined})
  } else {
    event.source.postMessage({
      error: {
        code: -32601,
        message: "Method not found"
      }
    })
  }
})