'use client';

import React from 'react';
import Link from 'next/link';
import { useParams, useRouter, usePathname } from 'next/navigation';
import Button from '@/components/button/PrimaryButton';
import { useGetFoods } from '@/app/[name]/(Main)/hooks/useMenuData';
import { useCart } from '../hook/useCart';
import { useTranslation } from 'react-i18next';
import { useGetProfile } from '@/app/[name]/(Profile)/profile/hooks/userProfileData';
import { useGetCartItems } from '../hooks/useCartData';
import { useCartStore } from '../store/Store';
import { guestCartItemsToFoods } from '../lib/cartUtils';
import { glassSurfaceNav } from '@/lib/styles/glassSurface';

interface CartSummaryProps {
  isPremium: boolean;
  hasItems: boolean;
}

const CartSummary = ({ isPremium, hasItems }: CartSummaryProps) => {
  const params = useParams();
  const router = useRouter();
  const pathname = usePathname();
  const name = params.name as string;
  const { isSuccess } = useGetProfile();
  const { data: foodsResponse } = useGetFoods();
  const { items } = useCart();
  const { data: cartData } = useGetCartItems(isSuccess);
  const { t } = useTranslation('parallels', { keyPrefix: 'Cart' });
  const { description, setDescription } = useCartStore();

  const totalPrice = React.useMemo(() => {
    if (isSuccess && cartData?.data?.total !== undefined) {
      return cartData.data.total;
    }

    const foods = foodsResponse?.data ?? [];
    const cartFoods = guestCartItemsToFoods(items, foods);
    return cartFoods.reduce((sum, food) => {
      const qty = items[String(food.id)]?.quantity ?? 0;
      const basePrice = food.price ?? 0;
      const discount = food.discount ?? 0;
      const priceAfterDiscount = basePrice * (1 - discount / 100);
      return sum + priceAfterDiscount * qty;
    }, 0);
  }, [isSuccess, cartData?.data?.total, foodsResponse?.data, items]);

  const formatPrice = React.useCallback(
    (value: number) => value.toLocaleString('fa-IR'),
    []
  );

  if (!hasItems) {
    return null;
  }

  return (
    <>
      {isPremium && (
        <div className='mt-2 mb-4'>
          <div className='relative'>
            <h3 className='text-sm'>{t('InputDescription.Label')}</h3>
            <textarea
              className='w-full px-4 py-2.5 mt-4 text-sm2 leading-6 outline-0 border border-border rounded-normal resize-none focus:ring-0'
              placeholder={t('InputDescription.Placeholder')}
              id='description'
              name='description'
              value={description}
              onChange={(e) => setDescription(e.target.value)}
            ></textarea>
            <span className='absolute top-4 right-2 px-2 bg-background text-foreground text-xs'></span>
          </div>
        </div>
      )}

      <div className={glassSurfaceNav('fixed bottom-0 left-0 right-0 z-50 border-t border-border p-4 w-full')}>
        <div className='flex justify-between items-center gap-4'>
          <div className='flex flex-col'>
            <div className='text-xs text-gray-400 dark:text-disabled-text'>{t('PayableAmountLabel')}</div>
            {isPremium && (
              <div className='text-sm mt-2 font-semibold dark:text-foreground'>
                {formatPrice(totalPrice)} تومان
              </div>
            )}
          </div>

          {isPremium && (
            <Link
              href={'order/checkout/0'}
              onClick={(event) => {
                if (!isSuccess) {
                  event.preventDefault();
                  const redirectUrl = encodeURIComponent(pathname);
                  router.replace(`/${name}/auth?redirect=${redirectUrl}`);
                  return;
                }
              }}
            >
              <Button className='w-fit! px-10 dark:bg-white dark:text-black! dark:hover:bg-gray-100'>
                {t('ButtonCheckout')}
              </Button>
            </Link>
          )}
          {!isPremium && (
            <div className='text-sm mt-2 font-semibold dark:text-foreground'>
              {formatPrice(totalPrice)} تومان
            </div>
          )}
        </div>
      </div>
    </>
  );
};

export default CartSummary;