pupilfirst/pupilfirst

function subscriptionDetails(data) {
  return {
    endpoint: data.endpoint,
    p256dh: data.keys.p256dh,
    auth: data.keys.auth,
  };
}

export async function getWebPushData() {
  const sw = await navigator.serviceWorker.ready;
  const subscription = await sw.pushManager.getSubscription();
  return subscription === null
    ? null
    : subscriptionDetails(subscription.toJSON());
}

export async function createSubscription() {
  const sw = await navigator.serviceWorker.ready;
  const vapidPublicKey = JSON.parse(
    document.documentElement.getAttribute("data-vapid-public-key")
  );
  if (vapidPublicKey) {
    await sw.pushManager.subscribe({
      userVisibleOnly: true,
      applicationServerKey: new Uint8Array(vapidPublicKey),
    });
  }

  return getWebPushData();
}