"use server";

import { auth } from "@/auth";
import { prisma } from "@/lib/db/prisma";
import { getPrimaryBusiness } from "@/lib/business/get-primary-business";
import { subscribeToPush, unsubscribeFromPush } from "@/services/notifications/push-subscription.service";

export interface PushActionResult {
  success: boolean;
  error?: string;
}

/**
 * Registered users only (staff, owner, signed-in customer) — a guest has
 * no session to attribute the subscription to. A guest subscribing right
 * after a guest booking is a real, documented gap for a future pass (see
 * docs/phase-7-summary.md, "Known limitations"), not an oversight.
 */
export async function subscribeToPushAction(input: {
  endpoint: string;
  p256dhKey: string;
  authKey: string;
  deviceLabel?: string;
}): Promise<PushActionResult> {
  const session = await auth();
  if (!session?.user) return { success: false, error: "You must be signed in." };

  const [business, customerProfile] = await Promise.all([
    getPrimaryBusiness(),
    prisma.customerProfile.findUnique({ where: { userId: session.user.id } }),
  ]);

  await subscribeToPush(prisma, {
    businessId: business.id,
    userId: session.user.id,
    customerId: customerProfile?.id,
    endpoint: input.endpoint,
    p256dhKey: input.p256dhKey,
    authKey: input.authKey,
    deviceLabel: input.deviceLabel,
  });
  return { success: true };
}

export async function unsubscribeFromPushAction(endpoint: string): Promise<PushActionResult> {
  const session = await auth();
  if (!session?.user) return { success: false, error: "You must be signed in." };

  await unsubscribeFromPush(prisma, { endpoint, ownerUserId: session.user.id });
  return { success: true };
}