import React, { useEffect, useState } from 'react';
import { steps } from './steps';
import { Card, Spin, Steps } from 'antd';
import ProductProperty from './product-property';
import ProductFinish from './product-finish';
import ProductStock from './product-stock';
import ProductExtras from './product-extras';
import ProductsIndex from './products-index';
import LanguageList from '../../../components/language-list';
import { useParams } from 'react-router-dom';
import productService from '../../../services/seller/product';
import { shallowEqual, useDispatch, useSelector } from 'react-redux';
import { disableRefetch, setMenuData } from '../../../redux/slices/menu';
import { useTranslation } from 'react-i18next';
import { useQueryParams } from '../../../helpers/useQueryParams';
import ProductGallery from './product-gallery';
import { useMemo } from 'react';

const { Step } = Steps;

const SellerProductEdit = () => {
  const { t } = useTranslation();
  const { uuid } = useParams();
  const queryParams = useQueryParams();
  const { activeMenu } = useSelector((state) => state.menu, shallowEqual);
  const { languages } = useSelector((state) => state.formLang, shallowEqual);
  const dispatch = useDispatch();
  const current = Number(queryParams.values?.step || 0);
  const [loading, setLoading] = useState(activeMenu.refetch);
  const { extras } = activeMenu?.data || {};

  const filteredExtras = useMemo(
    () => extras?.find((item) => item?.group?.type === 'color'),
    [extras]
  );
  const uniqueData = Array.from(
    new Set(filteredExtras?.values?.map((item) => item.value))
  ).map((value) => {
    return filteredExtras?.values?.find((item) => item.value === value);
  });
  const colorItems = uniqueData.filter((item) => item.group_type === 'color');

  const isTypeColorExists = extras?.some(
    (extra) => extra?.group?.type === 'color'
  );

  const newSteps = isTypeColorExists
    ? steps
    : steps.filter((item) => item.title !== 'gallery');

  const next = () => {
    const step = current + 1;
    queryParams.set('step', step);
  };
  const prev = () => {
    const step = current - 1;
    queryParams.set('step', step);
  };

  const createImages = (items) =>
    items.map((item) => ({
      uid: item.id,
      name: item.path,
      url: item.path,
      isVideo: Boolean(item.preview),
    }));
  const createMediaFile = (items) => {
    const mediaObject = { images: [], previews: [] };
    const previews = items
      .filter((item) => item.preview)
      .map((item) => ({
        uid: item.id,
        name: item.preview,
        url: item.preview,
      }));
    const videos = items
      .filter((item) => item.preview)
      .map((item) => ({
        uid: item.id,
        name: item.path,
        url: item.path,
        isVideo: true,
      }));
    mediaObject.previews = previews;
    mediaObject.images = videos;

    return mediaObject;
  };

  const createSelectObject = (item) => {
    if (!item) return null;
    return {
      label: item.translation ? item.translation.title : item.title,
      value: item.id,
    };
  };

  function fetchProduct(uuid) {
    setLoading(true);
    productService
      .getById(uuid)
      .then((res) => {
        const extras = {};
        res.data.stocks.forEach((stock) => {
          stock.extras.forEach((extra) => {
            if (extra.extra_group_id in extras) {
              if (
                !extras[extra.extra_group_id].values?.some(
                  (item) => item.value === extra.value?.id
                )
              ) {
                extras[extra.extra_group_id].values?.push({
                  value: extra.value.id,
                  label: extra.value?.value,
                  stock_id: stock.id,
                });
              }
            } else {
              extras[extra.extra_group_id] = {
                group: extra.group,
                label: extra.group.translation?.title,
                value: extra.extra_group_id,
                id: extra.extra_group_id,
                stock_id: stock.id,
                values: [
                  {
                    value: extra.value.id,
                    label: extra.value?.value,
                    stock_id: stock.id,
                  },
                ],
              };
            }
          });
        });
        const data = {
          ...res.data,
          ...getLanguageFields(res.data),
          shop: createSelectObject(res.data.shop),
          category: createSelectObject(res.data.category),
          brand: createSelectObject(res.data.brand),
          unit: createSelectObject(res.data.unit),
          images: createImages(res.data.galleries),
          initialMediaFile: createMediaFile(res.data.galleries),
          extras: Object.values(extras),
          stocks: res.data.stocks.map((stock) => ({
            ...stock,
            ...Object.assign(
              {},
              ...stock.extras.map((extra, idx) => ({
                [`extras[${idx}]`]: extra.id,
              }))
            ),
            quantity: stock.quantity || 0,
            price: stock.price || 0,
            extras: undefined,
          })),
          properties: res.data.properties.map((item, index) => ({
            id: index,
            [`key[${item.locale}]`]: item.key,
            [`value[${item.locale}]`]: item.value,
          })),
          translation: undefined,
          translations: undefined,
        };
        dispatch(setMenuData({ activeMenu, data }));
      })
      .finally(() => {
        setLoading(false);
        dispatch(disableRefetch(activeMenu));
      });
  }

  function getLanguageFields(data) {
    if (!data?.translations) {
      return {};
    }
    const { translations } = data;
    const result = languages.map((item) => ({
      [`title[${item.locale}]`]: translations.find(
        (el) => el.locale === item.locale
      )?.title,
      [`description[${item.locale}]`]: translations.find(
        (el) => el.locale === item.locale
      )?.description,
    }));
    return Object.assign({}, ...result);
  }

  useEffect(() => {
    if (activeMenu.refetch) {
      fetchProduct(uuid);
    }
  }, [activeMenu.refetch]);

  const onChange = (step) => {
    dispatch(setMenuData({ activeMenu, data: { ...activeMenu.data, step } }));
    queryParams.set('step', step);
  };
  return (
    <>
      <Card title={t('edit.product')} extra={<LanguageList />}>
        <Steps current={current} onChange={onChange}>
          {newSteps.map((item) => (
            <Step title={t(item.title)} key={item.title} />
          ))}
        </Steps>
      </Card>
      {!loading ? (
        <div className=''>
          {newSteps[current].content === 'First-content' && (
            <ProductsIndex next={next} action_type={'edit'} />
          )}

          {newSteps[current].content === 'Second-content' && (
            <ProductExtras next={next} prev={prev} mode='edit' />
          )}

          {newSteps[current].content === 'Third-content' && (
            <ProductStock next={next} prev={prev} mode='edit' />
          )}

          {isTypeColorExists > 0 &&
            newSteps[current].content === 'gallery-content' && (
              <ProductGallery next={next} prev={prev} />
            )}

          {newSteps[current].content === 'Fourth-content' && (
            <ProductProperty next={next} prev={prev} mode='edit' />
          )}

          {newSteps[current].content === 'Finish-content' && (
            <ProductFinish prev={prev} mode='edit' />
          )}
        </div>
      ) : (
        <div className='d-flex justify-content-center align-items-center'>
          <Spin size='large' className='py-5' />
        </div>
      )}
    </>
  );
};
export default SellerProductEdit;
