Chat.js

import axios from 'axios';
import React, { useState, useEffect } from 'react';
import { Form, Button, Row, Image, Col, Container } from 'react-bootstrap';
import { isAuthenticated } from '../utils/auth';
import catchErrors from '../utils/catchErrors';

function Chat(props) {
  // let defaultname = sessionStorage.getItem('name');

  const [sender, setSender] = useState([])

  const [inner, setInner] = useState([''])
  const [chat, setChat] = useState([])   //object로 key는 보낸사람 value는 메세지

  const [img, setImg] = useState([])

  const [disabled, setDisabled] = useState(true)
  const [user, setUser] = useState('')
  const [error, setError] = useState('');

  const userId = isAuthenticated()
  async function getProfile(userId) {
    try {
      const response = await axios.get(`/users/${userId}`)
      setUser(response.data)
    } catch (error) {
      catchErrors(error, setError)
    }
  }

  function handleChange(e) {
    e.preventDefault()
    setInner(e.target.value)
    setDisabled(false)
  }

  function sendMsgCH(e) {
    e.preventDefault()

    props.setSingleImg(user.profileimg)
    props.setSingleUser(user.nickname)
    // props.setSingleUser(sessionStorage.getItem('name'))
    props.setSingleChat(inner)

    props.sendMsg(e)
    setInner('')
    setDisabled(true)
  }
  useEffect(() => {
    getProfile(userId)
  }, [userId])

  useEffect(() => {
    setImg([...img, props.singleImg])
    setSender([...sender, props.singleUser])
    setChat([...chat, props.singleChat])
  }, [props.singleChat])

  useEffect(() => {
    setImg([...img, props.recievedImg])
    setSender([...sender, props.recievedUser])
    setChat([...chat, props.recievedMsg])
  }, [props.recievedMsg])

  const time = new Date().toLocaleTimeString()
  return (
    <>
      <Container id="chat" style={{ overflow: 'auto', padding: '20px', border: "2px solid", height: "500px", margin: "1%", borderColor: "#BDBDBD", background: '' }}>
        <h2>해당 방에 대한 참여코드는 {props.roomCode} 입니다.</h2>
        {/* 상대방이 보낸 메세지 띄우기 + 같은유저면 프로필 이미지는 생략(chat을 object로 보낸사람과 함께 보내서 구분하자) */}
        {chat.map((value, index) => {
          if (!(value == '')) {
            if (!(sender[index] === user.nickname)) {
              return (
                <Row key={index} className='m-1' >
                  <Col xs={2}>
                    <Image src={img && `/images/${img[index]}`} style={{ width: "50px", height: "50px" }} roundedCircle />
                  </Col>
                  <Col xs={8}>
                    <Row><strong>{sender[index]}</strong></Row>
                    <Row className='d-flex flex-wrap-nowrap'>
                      <Row className='border border-dark' style={{ width: 'max-content', maxWidth: '300px', height: 'auto', paddingLeft: '15px', paddingRight: '15px', background: 'white', borderRadius: '5px', fontSize: 'x-large' }}>{value}</Row>
                      <Col className='ml-1'>{time}</Col>
                    </Row>
                  </Col>
                </Row>
              )
            } else {
              return (
                <Row key={index} className='m-1 justify-content-end'>
                  <Row className='d-flex flex-wrap-nowrap' >
                    <Col className='mr-1'>{time}</Col>
                    <Row className='mr-2' style={{ width: 'max-content', maxWidth: '300px', height: 'auto', paddingLeft: '15px', paddingRight: '15px', background: 'yellow', borderRadius: '3px', fontSize: 'x-large' }}>{value}</Row>
                  </Row>
                </Row>
              )
            }
          } else {
            return null
          }
        })
        }

        <Button variant="light" onClick={props.handleChatc} >{`<`}</Button>


      </Container >
        <Form onSubmit={sendMsgCH} fluid>
          <Form.Group className='d-flex flex-wrap-nowrap justify-content-center m-3'>
            <Form.Control className='border border-warning' name='chat' type="text" value={inner} onChange={handleChange} style={{ width: '85%' }} />
            <Button variant="warning" type="submit" disabled={disabled} style={{ width: '10%' }}>
              전송
          </Button>
          </Form.Group>
        </Form>
    </>


  );
}


export default Chat;