const CACHE = "atom-v3";
const API_CACHE = "atom-api-v3";

self.addEventListener("install", () => self.skipWaiting());

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

self.addEventListener("fetch", (event) => {
	const req = event.request;
	if (req.method !== "GET") return;
	const url = new URL(req.url);
	if (url.origin !== self.location.origin) return;

	if (
		url.pathname.startsWith("/assets/") ||
		url.pathname.startsWith("/_next/static/")
	) {
		event.respondWith(
			caches.open(CACHE).then((cache) =>
				cache.match(req).then(
					(hit) =>
						hit ||
						fetch(req).then((res) => {
							if (res.ok) cache.put(req, res.clone());
							return res;
						}),
				),
			),
		);
		return;
	}

	if (
		url.pathname.startsWith("/api/home") ||
		url.pathname.startsWith("/api/online") ||
		url.pathname.startsWith("/api/radio/config")
	) {
		event.respondWith(
			caches.open(API_CACHE).then((cache) =>
				fetch(req)
					.then((res) => {
						if (res.ok) cache.put(req, res.clone());
						return res;
					})
					.catch(() => cache.match(req)),
			),
		);
		return;
	}

	if (req.mode === "navigate") {
		event.respondWith(fetch(req));
	}
});