import React, { useState } from 'react';
import { Swiper, SwiperSlide } from 'swiper/react';
import { Autoplay, Navigation, Pagination } from 'swiper/modules';
import 'swiper/css';
import { ComboSet, ComboProduct, ComboGroup } from '@/types';
import { ItemComboSet } from './ItemComboset';
import { ChangeProductPopup } from './ChangeProductPopup';

interface ComboProps {
  combo_set: ComboSet[];
}

interface PopupGroup {
  title: string;
  products: ComboProduct[];
}

export const ComboSetBox: React.FC<ComboProps> = ({ combo_set }) => {
  const [openPopup, setOpenPopup] = useState(false);
  const [popupGroup, setPopupGroup] = useState<PopupGroup>({
    title: '',
    products: [],
  });
  const [selectedProduct, setSelectedProduct] = useState<ComboProduct | null>(null);

  const handleOpenPopup = (
    titleGroup: string,
    products: ComboProduct[],
    currentItem: ComboProduct,
  ) => {
    setPopupGroup({ title: titleGroup, products });
    setSelectedProduct(currentItem); // lưu sản phẩm đang hiển thị
    setOpenPopup(true);
  };

  const handleReplaceProduct = (newProduct: ComboProduct) => {
    // cập nhật selectedProduct bằng sản phẩm mới
    setSelectedProduct(newProduct);
    setOpenPopup(false);
  };

  const getDisplayedProduct = (group: ComboGroup) => {
    // Nếu selectedProduct thuộc group này thì hiển thị nó
    if (selectedProduct && group.product_list.some((p) => p.id === selectedProduct.id)) {
      return selectedProduct;
    }
    // Ngược lại lấy sản phẩm mặc định
    return group.product_list.find((p) => p.is_first === 'yes') || group.product_list[0];
  };

  if (!combo_set || combo_set.length === 0) return null;
  const setInfo = combo_set[0];

  return (
    <div className="box-comboset mb-8">
      <p className="title-comboset font-weight-600">Mua theo combo</p>
      <div id="comboset">
        <Swiper
          className="list-product-comboset swiper-comboset"
          modules={[Autoplay, Navigation, Pagination]}
          spaceBetween={16}
          slidesPerView={3}
          navigation
        >
          {setInfo.group_list.map((group, index) => {
            // lấy sản phẩm đầu tiên theo logic "is_first" hoặc mặc định
            const firstProduct =
              group.product_list.find((p) => p.is_first === 'yes') || group.product_list[0];

            return (
              <SwiperSlide key={index}>
                <ItemComboSet
                  item={getDisplayedProduct(group)}
                  keyGroup={group.key}
                  titleGroup={group.title}
                  setId={setInfo.id}
                  products={group.product_list}
                  onOpenPopup={handleOpenPopup}
                />
              </SwiperSlide>
            );
          })}
        </Swiper>

        <div className="comboset-info mt-4 flex justify-between">
          <div className="box-left">
            <div className="total-comboset flex items-center gap-2">
              <p>Tạm tính:</p>
              <p className="js-pass-price price text-red font-weight-600">
                {/* giả sử lấy giá từ product_info */}
                3.050.000 đ
              </p>
            </div>
            <p className="save-price-combo">
              Tiết kiệm thêm <span className="save-price">215.000đ</span>
            </p>
          </div>
          <div className="box-right flex items-center justify-end gap-2">
            <p className="js-combo-set js-combo-set-checkout buy_combo" data-set-id={setInfo.id}>
              Mua thêm <span id="count-pro-selected">0</span> sản phẩm
            </p>
          </div>
        </div>
      </div>
      <ChangeProductPopup
        titleGroup={popupGroup.title}
        products={popupGroup.products}
        open={openPopup}
        onClose={() => setOpenPopup(false)}
        onSelect={handleReplaceProduct}
      />
    </div>
  );
};