import { useEffect, useRef, useState, forwardRef, memo } from 'react';
import { MessageBox } from 'react-chat-elements';
import { App, Button } from 'antd';
import { DownOutlined, LoadingOutlined } from '@ant-design/icons';
import { useShallow } from 'zustand/react/shallow';
import useConversationStore from '@/stores/ConversationStore';
import { groupBy, isEmpty, } from '@/utils/utils';

const MessagesList = ({ messages, handlePreview, reference, longListLoading, getMoreMessages, shouldScrollBottom, loadNextPage, handleContactClick, ...props }) => {

  const { message: appMessage } = App.useApp()

  const setReferenceMsg = useConversationStore(useShallow((state) => state.setReferenceMsg));

  // const messagesEndRef = useRef(null);
  const messageRefs = useRef([]);
  const [focusMsg, setFocusMsg] = useState('');
  useEffect(() => {
    setTimeout(() => {
      setFocusMsg('');
    }, 3500);

    return () => '';
  }, [focusMsg])


  const scrollToBottom = (force = false) => {
    if (reference.current && (shouldScrollBottom || force)) {
      reference.current.scrollTop = reference.current.scrollHeight;
    }
  };

  const scrollToMessage = (id, index) => {
    const _i = index || messages.findIndex((msg) => msg.id === id);
    if (_i >= 0) {
      messageRefs.current[_i].scrollIntoView({ behavior: 'smooth', block: 'start' });
      setFocusMsg(id);
    }
  };

  useEffect(scrollToBottom, [messages]);

  const RenderText = memo(function renderText({ str, className, template }) {

    let headerObj, footerObj, buttonsArr;
    if (!isEmpty(template)) {
      const componentsObj = groupBy(template.components, (item) => item.type);
      headerObj = componentsObj?.header?.[0];
      footerObj = componentsObj?.footer?.[0];
      buttonsArr = componentsObj?.buttons?.reduce((r, c) => r.concat(c.buttons), []);
    }

    const parts = str.split(/(https?:\/\/[^\s]+|\p{Emoji_Presentation})/gmu).filter((s) => s !== '');
    const links = str.match(/https?:\/\/[\S]+/gi) || [];
    const emojis = str.match(/([\u2700-\u27BF]|[\uE000-\uF8FF]|\uD83C[\uDC00-\uDFFF]|\uD83D[\uDC00-\uDFFF]|[\u2011-\u26FF]|\uD83E[\uDD10-\uDDFF])/g) || [];
    const extraClass = isEmpty(emojis) ? '' : '';
    const objArr = parts.reduce((prev, curr, index) => {
      if (links.includes(curr)) {
        prev.push({ type: 'link', key: curr });
      } else if (emojis.includes(curr)) {
        prev.push({ type: 'emoji', key: curr });
      } else {
        prev.push({ type: 'text', key: curr });
      }
      return prev;
    }, []);
    return (
      <span className={`text-sm leading-5 emoji-text whitespace-pre-wrap ${className} ${extraClass}`} key={'msg-text'}>
        {headerObj ? (
          <div className='text-neutral-500 text-center'>
            {'text' === (headerObj?.parameters?.[0]?.type || '').toLowerCase() && <div>{headerObj.text}</div>}
            {'image' === (headerObj?.parameters?.[0]?.type || '').toLowerCase() && <img src={headerObj.parameters[0].image.link} height={100}></img>}
            {['document', 'video'].includes((headerObj?.parameters?.[0]?.type || '').toLowerCase()) && (
              <a href={headerObj.parameters[0][headerObj.parameters[0].type].link} target='_blank' key={headerObj.format} rel='noreferrer' className='text-sm'>
                [&nbsp;{headerObj.parameters[0].type}&nbsp;]
              </a>
            )}
          </div>
        ) : null}
        {(objArr || []).map((part, index) => {
          if (part.type === 'link') {
            return (
              <a href={part.key} target='_blank' key={`${part.key}${index}`} rel='noreferrer' className='text-sm'>
                {part.key}
              </a>
            );
          } else {
            // if (part.type === 'emoji')
            return part.key;
          }
        })}
        {footerObj ? <div className=' text-neutral-500'>{footerObj.text}</div> : null}
        {buttonsArr && buttonsArr.length > 0 ? (
          <div className='flex flex-row gap-1'>
            {buttonsArr.map((btn, index) =>
              btn.type.toLowerCase() === 'url' ? (
                <Button className='text-blue-500' size={'small'} href={btn.url} target={'_blank'} key={btn.url} rel='noreferrer'>
                  {btn.text}
                </Button>
              ) : btn.type.toLowerCase() === 'phone_number' ? (
                <Button className='text-blue-500' size={'small'} key={btn.phone_number} rel='noreferrer'>
                  {btn.text} ({btn.phone_number})
                </Button>
              ) : (
                <Button className='text-blue-500' size={'small'} key={btn.type}>
                  {btn.text}
                </Button>
              )
            )}
          </div>
        ) : null}
      </span>
    );
  });

  const onLoadMore = async () => {
    const newLen = await getMoreMessages();
  };
  // eslint-disable-next-line react/display-name
  const MessageBoxWithRef = forwardRef((props, ref) => (
    <div ref={ref}>
      <MessageBox {...props} />
    </div>
  ));

  return (
    <div className='relative h-full overflow-y-auto overflow-x-hidden flex flex-1'>
      <div ref={reference} className='relative overflow-y-auto overflow-x-hidden block flex-1'>
        {loadNextPage && messages.length > 0 && (
          <div className='text-center pt-3 mb-3 h-8 leading-8 '>
            {!longListLoading ? (
              <Button onClick={onLoadMore} type={'dashed'}>
                loading more
              </Button>
            ) : (
              <LoadingOutlined className='text-primary' />
            )}
          </div>
        )}
        {messages.map((message, index) => (
          <MessageBoxWithRef
            ref={(el) => (messageRefs.current[index] = el)}
            key={message.id}
            {...message}
            position={message.sender === 'me' ? 'right' : 'left'}
            onReplyClick={() => setReferenceMsg(message)}
            onReplyMessageClick={() => scrollToMessage(message.reply.id)}
            onOpen={() => handlePreview(message)}
            onTitleClick={() => handlePreview(message)}
            text={<RenderText str={message?.text || ''} className={message.status === 'failed' ? 'line-through text-neutral-400' : ''} template={message.template} />}
            replyButton={['text', 'document', 'image'].includes(message.whatsapp_msg_type)}
            {...(message.sender === 'me'
              ? {
                  styles: { backgroundColor: '#ccd4ae' },
                  notchStyle: { fill: '#ccd4ae' },
                  replyButton: ['text', 'document', 'image'].includes(message.whatsapp_msg_type) && message.status !== 'failed' ? true : false,
                }
              : {})}
            className={[
              'whitespace-pre-wrap',
              message.whatsapp_msg_type === 'sticker' ? 'bg-transparent' : '',
              message.sender === 'me' ? 'whatsappme-container' : '',
              focusMsg === message.id ? 'message-box-focus' : '',
              message.status === 'failed' ? 'failed-msg' : '',
            ].join(' ')}
            {...(message.type === 'meetingLink'
              ? {
                  actionButtons: [
                    ...(message.waBtn
                      ? [
                          {
                            onClickButton: () => handleContactClick(message.data),
                            Component: () => <div key={'talk-now'}>发消息</div>,
                          },
                        ]
                      : []),
                    {
                      onClickButton: () => {
                        navigator.clipboard.writeText(message.text);
                        appMessage.success('复制成功😀')
                      },
                      Component: () => <div key={'copy'}>复制</div>,
                    },
                  ],
                }
              : {})}
          />
        ))}
      </div>
      <Button onClick={() => scrollToBottom(true)} ghost type={'dashed'} shape={'circle'} className=' absolute bottom-1 right-4' icon={<DownOutlined />} />
    </div>
  );
};

export default MessagesList;