import { useQuery } from '@tanstack/react-query';
import { api, type ApiResponse } from '../lib/api';

export interface PriceSnapshotLine {
  label: string;
  rials: number;
  kind?: string;
}

export interface PriceSnapshot {
  base_rials: number;
  items_rials: number;
  discount_rials: number;
  insurance_base_rials: number;
  insurance_supplementary_rials: number;
  tax_rials: number;
  final_rials: number;
  deposit_rials: number;
  created_at?: number;
  breakdown: {
    discounts: PriceSnapshotLine[];
    sources: Record<string, unknown>;
  };
}

/** فاکتور یک نوبت — همان اعداد لحظهٔ ثبت، حتی اگر قیمت سرویس بعداً عوض شده باشد. */
export function useAppointmentInvoice(appointmentUuid: string | undefined) {
  const query = useQuery({
    queryKey: ['appointment-invoice', appointmentUuid],
    queryFn: () =>
      api.get<ApiResponse<PriceSnapshot>>(`/api/v1/appointment/${appointmentUuid}/price-snapshot`),
    enabled: !!appointmentUuid,
    // نوبتِ بدون فاکتور ۴۰۴ می‌دهد و آن خطا نیست، یعنی «هنوز ثبت نشده».
    retry: false,
  });

  return { invoice: query.data?.data, loading: query.isLoading, missing: query.isError };
}