/* global __BANKAI_ASSETS__ */
// Service worker built by `bankai build`: the precache list is injected
// at build time from the asset manifest (the choo-service-worker
// convention, manifest edition). Register it from your app with
// navigator.serviceWorker.register('/sw.js').

const CACHE = 'counter-v1'
const ASSETS = __BANKAI_ASSETS__

self.addEventListener('install', (event) => {
  event.waitUntil(
    caches.open(CACHE).then((cache) => cache.addAll(ASSETS))
  )
})

self.addEventListener('activate', (event) => {
  event.waitUntil(
    caches.keys().then((keys) =>
      Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k)))
    )
  )
})

self.addEventListener('fetch', (event) => {
  event.respondWith(
    caches.match(event.request).then((hit) => hit || fetch(event.request))
  )
})