import { useMemo } from 'react';
import { useOrders } from './useAdminApi';
import { format } from 'date-fns';
import { ru } from 'date-fns/locale';
import { Order } from '@/lib/orders';

interface UseOrdersCacheParams {
  page?: number;
  pageSize?: number;
  status?: string;
  search?: string;
  dateRange?: [Date | null, Date | null];
}

export default function useOrdersCache({
  page = 1,
  pageSize = 10,
  status = '',
  search = '',
  dateRange = [null, null],
}: UseOrdersCacheParams = {}) {
  const params: Record<string, any> = {
    skip: (page - 1) * pageSize,
    limit: pageSize,
    search: search || undefined,
    status: status || undefined,
  };
  if (dateRange[0] && dateRange[1]) {
    params.date_from = format(dateRange[0], 'yyyy-MM-dd');
    params.date_to = format(dateRange[1], 'yyyy-MM-dd');
  }
  const { data, isLoading, error, refetch } = useOrders(params) as { data?: { orders: Order[]; total: number }, isLoading: boolean, error: any, refetch: () => void };
  const orders: Order[] = data?.orders || [];
  const totalOrders: number = data?.total || 0;
  const totalPages: number = pageSize > 0 ? Math.ceil(totalOrders / pageSize) : 1;

  // Вспомогательные функции для UI
  const getStatusLabel = (status: string) => {
    switch (status) {
      case 'pending': return 'Ожидает оплаты';
      case 'paid': return 'Оплачен';
      case 'processing': return 'В обработке';
      case 'shipped': return 'Отправлен';
      case 'delivered': return 'Доставлен';
      case 'cancelled': return 'Отменен';
      default: return status;
    }
  };
  const getStatusClass = (status: string) => {
    switch (status) {
      case 'pending': return 'secondary';
      case 'paid': return 'default';
      case 'processing': return 'outline';
      case 'shipped': return 'default';
      case 'delivered': return 'default';
      case 'cancelled': return 'destructive';
      default: return 'default';
    }
  };
  const formatDate = (date: string | Date) => {
    if (!date) return '';
    return format(new Date(date), 'dd.MM.yyyy', { locale: ru });
  };
  const formatAmount = (amount: number) => {
    return new Intl.NumberFormat('ru-RU', { style: 'currency', currency: 'RUB' }).format(amount);
  };

  return {
    orders,
    totalOrders,
    totalPages,
    isLoading,
    error,
    refetch,
    getStatusLabel,
    getStatusClass,
    formatDate,
    formatAmount,
  };
}