import type { BookingRequest } from "@/payload-types";

/** Explicit allow-list at the server/client boundary, including relationships. */
export function customerBookingView(booking: BookingRequest) {
  const offer = typeof booking.offer === "object" ? booking.offer : null;
  const event = typeof booking.linkedEvent === "object" ? booking.linkedEvent : null;
  const alternative = booking.proposedAlternative;
  return {
    id: booking.id,
    date: booking.date,
    startTime: booking.startTime,
    endTime: booking.endTime,
    status: booking.status,
    appointmentType: booking.appointmentType,
    offer: offer ? { title: offer.title } : null,
    linkedEvent: event ? { slug: event.slug, isOnline: event.isOnline } : null,
    proposedAlternative: alternative ? {
      date: alternative.date,
      startTime: alternative.startTime,
      endTime: alternative.endTime,
    } : null,
  };
}

export type CustomerBooking = ReturnType<typeof customerBookingView>;