/// <reference lib="webworker" />
import { precacheAndRoute } from "workbox-precaching";
import { registerRoute, NavigationRoute } from "workbox-routing";
import { NetworkFirst } from "workbox-strategies";
import type { PushPayload } from "@anydrop/shared";

declare const self: ServiceWorkerGlobalScope;

// Workbox injects the precache manifest here
precacheAndRoute(self.__WB_MANIFEST);

// Navigation: always try network first (so deploys are visible immediately)
registerRoute(new NavigationRoute(new NetworkFirst()));

// Activate immediately, take control of all clients
self.addEventListener("install", () => {
  self.skipWaiting();
});

self.addEventListener("activate", (event) => {
  event.waitUntil(self.clients.claim());
});

// ── Push notifications ──

self.addEventListener("push", (event) => {
  if (!event.data) return;

  let payload: PushPayload;
  try {
    payload = event.data.json();
  } catch {
    return;
  }

  if (payload.type === "peer-nearby") {
    const deviceEmoji = payload.deviceType === "phone" ? "📱" : payload.deviceType === "tablet" ? "📱" : "💻";

    event.waitUntil(
      self.registration.showNotification("AnyDrop", {
        body: `${deviceEmoji} ${payload.displayName} est à proximité`,
        icon: "/icon-192.png",
        badge: "/icon-192.png",
        tag: "peer-nearby",
        data: { url: "/" },
      } as NotificationOptions),
    );
  }
});

// Click on notification → open/focus AnyDrop
self.addEventListener("notificationclick", (event) => {
  event.notification.close();

  const url = event.notification.data?.url || "/";

  event.waitUntil(
    self.clients.matchAll({ type: "window", includeUncontrolled: true }).then((clients) => {
      // Focus existing tab if open
      for (const client of clients) {
        if (new URL(client.url).pathname === url && "focus" in client) {
          return client.focus();
        }
      }
      // Otherwise open new tab
      return self.clients.openWindow(url);
    }),
  );
});