const CACHE_NAME = "drivers-garage-v2";
const APP_SHELL = [
  "/",
  "/static/app.js",
  "/static/styles.css",
  "/static/icon.svg",
  "/manifest.webmanifest",
];

self.addEventListener("install", (event) => {
  event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(APP_SHELL)));
  self.skipWaiting();
});

self.addEventListener("activate", (event) => {
  event.waitUntil(
    caches
      .keys()
      .then((keys) => Promise.all(keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key)))),
  );
  self.clients.claim();
});

self.addEventListener("fetch", (event) => {
  const { request } = event;
  if (request.method !== "GET") return;
  if (new URL(request.url).pathname.startsWith("/api/")) return;
  event.respondWith(
    fetch(request)
      .then((response) => {
        const copy = response.clone();
        caches.open(CACHE_NAME).then((cache) => cache.put(request, copy));
        return response;
      })
      .catch(() => caches.match(request).then((cached) => cached || caches.match("/"))),
  );
});

self.addEventListener("push", (event) => {
  const data = event.data?.json?.() || {};
  event.waitUntil(
    self.registration.showNotification(data.title || "Гараж", {
      body: data.body || "Пора обновить данные по автомобилю.",
      icon: "/static/icon.svg",
      badge: "/static/icon.svg",
      tag: data.tag || "drivers-garage-reminder",
      data: data.url || "/",
    }),
  );
});

self.addEventListener("notificationclick", (event) => {
  event.notification.close();
  event.waitUntil(clients.openWindow(event.notification.data || "/"));
});