import React, { useMemo, useRef, useState } from 'react';
import { Image } from 'semantic-ui-react';
import Slider from 'react-slick';
import { Link } from 'react-router-dom';
import { flattenToAppURL } from '@plone/volto/helpers';
import { isInternalURL } from '@plone/volto/helpers/Url/Url';
import CommonItemRenderer from './CommonItemRenderer';
import processItemsForRecurrence from './processItemsForRecurrence';
import PropTypes from 'prop-types'; // Import PropTypes
import './Advanced.css'; // Import the CSS file
import { FadeInSection } from './sharedUtils';

const useSliderControls = () => {
  const sliderRef = useRef(null);
  const [isPlaying, setIsPlaying] = useState(true);

  const togglePlay = () => {
    if (isPlaying) {
      sliderRef.current.slickPause();
    } else {
      sliderRef.current.slickPlay();
    }
    setIsPlaying(!isPlaying);
  };

  return { sliderRef, isPlaying, togglePlay };
};

const AdvancedCarouselBlockTemplate = ({
  items,
  moreLinkText,
  moreLinkUrl,
  header,
  headerUrl,
  headerTag: HeaderTag = 'p', // Default header tag
  isEditMode,
  imageSide,
  imageWidth,
  howManyColumns,
  effectiveDate,
  expirationDate,
  titleTag,
  showTitle,
  showDescription,
  eventDate,
  eventLocation,
  eventTime,
  slidesToScroll: slidesToScroll = 1,
  autoPlay: autoPlay = true,
  autoplaySpeed: autoplaySpeed = 5,
  eventCard,
  quote,
  showRecurrence,
  fetchPriority,
  creatorauthor,
  readMore,
  enableAnimation,
}) => {
  const { sliderRef, isPlaying, togglePlay } = useSliderControls();

  // Preprocess items for recurrence
  const processedItems = useMemo(() => {
    return showRecurrence
      ? processItemsForRecurrence(items)
      : items.map(item => ({
        ...item,
        url: flattenToAppURL(item['@id']),
      }));
  }, [items, showRecurrence]);

  const getLink = (url, text) => {
    if (!url) return null;
    return isInternalURL(url) ? (
      <Link to={flattenToAppURL(url)}>{text || url}</Link>
    ) : (
      <a href={url} target='_blank' rel='noopener noreferrer'>
        {text || url}
      </a>
    );
  };

  const moreLink = getLink(moreLinkUrl?.[0]?.['@id'], moreLinkText);
  const headerLink = getLink(headerUrl?.[0]?.['@id'], header);

  return (
    <div className='advancedView advancedSlider'>
      {headerLink && <HeaderTag className='listing-header'>{headerLink}</HeaderTag>}

      <Slider
        ref={sliderRef}
        className={`column${howManyColumns}`}
        dots
        infinite
        lazyLoad
        speed={500}
        slidesToShow={howManyColumns || 1}
        slidesToScroll={slidesToScroll || 1}
        autoplay={autoPlay}
        autoplaySpeed={autoplaySpeed * 1000}
        pauseOnHover={false}
        arrows
        responsive={
          howManyColumns >= 3
            ? [
              { breakpoint: 1169, settings: { slidesToShow: 3 } },
              { breakpoint: 991, settings: { slidesToShow: 2, slidesToScroll: 1 } },
              { breakpoint: 767, settings: { slidesToShow: 1, slidesToScroll: 1 } },
            ]
            : [{ breakpoint: 767, settings: { slidesToShow: 1, slidesToScroll: 1 } }]
        }
      >
        {processedItems.map((item, index) => (
          <div key={item['@id']}>
            {enableAnimation ? (
              <FadeInSection delay={(index % (howManyColumns || 1)) * 100}>
                <CommonItemRenderer
                  items={[item]}
                  showRecurrence={showRecurrence}
                  quote={quote}
                  showTitle={showTitle}
                  eventCard={eventCard}
                  titleTag={titleTag}
                  eventDate={eventDate}
                  eventTime={eventTime}
                  eventLocation={eventLocation}
                  showDescription={showDescription}
                  effectiveDate={effectiveDate}
                  expirationDate={expirationDate}
                  isEditMode={isEditMode}
                  imageSide={imageSide}
                  imageWidth={imageWidth}
                  howManyColumns={howManyColumns}
                  fetchPriority={fetchPriority}
                  creatorauthor={creatorauthor}
                  readMore={readMore}
                />
              </FadeInSection>
            ) : (
              <CommonItemRenderer
                items={[item]}
                showRecurrence={showRecurrence}
                quote={quote}
                showTitle={showTitle}
                eventCard={eventCard}
                titleTag={titleTag}
                eventDate={eventDate}
                eventTime={eventTime}
                eventLocation={eventLocation}
                showDescription={showDescription}
                effectiveDate={effectiveDate}
                expirationDate={expirationDate}
                isEditMode={isEditMode}
                imageSide={imageSide}
                imageWidth={imageWidth}
                howManyColumns={howManyColumns}
                fetchPriority={fetchPriority}
                creatorauthor={creatorauthor}
                readMore={readMore}
              />
            )}
          </div>
        ))}
      </Slider>

      <button className='ui circular button playpause' onClick={togglePlay}>
        {isPlaying ? (
          <Image
            src='data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0Ij48cGF0aCBkPSJNMTEgMjJoLTR2LTIwaDR2MjB6bTYtMjBoLTR2MjBoNHYtMjB6Ii8+PC9zdmc+'
            alt='Pause Slideshow'
          />
        ) : (
          <Image
            src='data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0Ij48cGF0aCBkPSJNMyAyMnYtMjBsMTggMTAtMTggMTB6Ii8+PC9zdmc+'
            alt='Play Slideshow'
          />
        )}
      </button>
    </div>
  );
};

AdvancedCarouselBlockTemplate.propTypes = {
  items: PropTypes.arrayOf(PropTypes.object).isRequired,
  moreLinkText: PropTypes.string,
  moreLinkUrl: PropTypes.array,
  header: PropTypes.string,
  headerUrl: PropTypes.array,
  headerTag: PropTypes.string,
  isEditMode: PropTypes.bool,
  imageSide: PropTypes.string,
  imageWidth: PropTypes.number,
  howManyColumns: PropTypes.number,
  effectiveDate: PropTypes.bool,
  expirationDate: PropTypes.bool,
  titleTag: PropTypes.string,
  showTitle: PropTypes.bool,
  showDescription: PropTypes.bool,
  eventDate: PropTypes.bool,
  eventLocation: PropTypes.bool,
  eventTime: PropTypes.bool,
  slidesToScroll: PropTypes.number,
  autoPlay: PropTypes.bool,
  autoplaySpeed: PropTypes.number,
  eventCard: PropTypes.bool,
  quote: PropTypes.bool,
  showRecurrence: PropTypes.bool,
  fetchPriority: PropTypes.string,
  creatorauthor: PropTypes.bool,
  readMore: PropTypes.bool,
  enableAnimation: PropTypes.bool,
};

export default React.memo(AdvancedCarouselBlockTemplate);