Proyectos de Subversion LeadersLinked - Backend

import React, { useRef, useEffect, useState } from "react";

import Message from "./Messages";

import styles from "../chat.module.scss";

const MessagesList = ({ messages, onIntersection, isLastPage, scrollRef }) => {

  const [loading, setLoading] = useState(false);

  const loadMoreEl = useRef();

  const handleIntersection = (target) => {

    setLoading(true);

    onIntersection(target);

  };

  useEffect(() => {

    const observer = new IntersectionObserver(handleIntersection);

    if (loadMoreEl.current) {

      observer.observe(loadMoreEl.current);

    }

    return () => {

      observer.disconnect();

    };

  }, []);

  useEffect(() => {

    setLoading(false);

  }, [messages]);

  return (

    <div className={styles.messagesContainer} ref={scrollRef}>

      <div className={styles.messageWrapper}>

        {!isLastPage && !loading && <p ref={loadMoreEl}>Cargando...</p>}

        {messages.map((message) => (

          <Message message={message} key={message.id} />

        ))}

      </div>

    </div>

  );

};

export default MessagesList;