"use client";

export async function subscribeCommissionPush(scope: "customer" | "admin", publicKey: string) {
  if (await Notification.requestPermission() !== "granted") return false;
  await syncCommissionPush(scope, publicKey);
  return true;
}

export async function syncCommissionPush(scope: "customer" | "admin", publicKey: string) {
  const registration = await navigator.serviceWorker.register("/commission-push-sw.js", { scope: "/" });
  const subscription = await registration.pushManager.getSubscription() ??
    await registration.pushManager.subscribe({ userVisibleOnly: true, applicationServerKey: publicKey });
  const response = await fetch("/api/commission/push-subscription", { method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ ...subscription.toJSON(), scope }) });
  if (!response.ok) throw new Error("Could not save push subscription");
  sessionStorage.setItem(`commission-push-synced-${scope}`, "1");
}

export async function unsubscribeCommissionPush() {
  sessionStorage.removeItem("commission-push-synced-customer");
  sessionStorage.removeItem("commission-push-synced-admin");
  if (!("serviceWorker" in navigator)) return;
  const registration = await navigator.serviceWorker.getRegistration("/");
  const subscription = await registration?.pushManager.getSubscription();
  if (!subscription) return;
  await fetch("/api/commission/push-subscription", { method: "DELETE",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ endpoint: subscription.endpoint }) }).catch(() => undefined);
  await subscription.unsubscribe();
}