import React, { useState, useEffect } from 'react';
import axios from 'axios';
import { Row, Col, Modal, Button, Form, Alert } from 'react-bootstrap';
import Tabs from 'react-bootstrap/Tabs';
import Tab from 'react-bootstrap/Tab';
import ClosedList from '../Components/ClosedList';
import OpenList from '../Components/OpenList';
import Menu from '../Components/Menu';
import catchErrors from '../utils/catchErrors';
import { io } from "socket.io-client";   //모듈 가져오기
import Chat from "../Components/Chat";

const socket = io();

const INIT_ROOM = {
  roomName: '',
  interest: '',
  isOpen: false
}

function Home() {
  // const [namelist, setNamelist] = useState([])

  const [show, setShow] = useState(false);
  const [show2, setShow2] = useState(false);
  const [chat, setChat] = useState(false);
  const [room, setRoom] = useState(INIT_ROOM);
  const [disabled, setDisabled] = useState(true);
  const [error, setError] = useState('');

  const [singleChat, setSingleChat] = useState('')
  const [roomName, setRoomName] = useState('')

  const handleClose = () => setShow(false);
  const handleShow = () => setShow(true);
  const handleChato = () => setChat(true);
  const handleChatc = () => setChat(false);
  const handleClose2 = () => setShow2(false);
  const handleShow2 = () => setShow2(true);

  useEffect(() => {
    const isRoom = Object.values(room).every(el => Boolean(el))
    isRoom ? setDisabled(false) : setDisabled(true)
  }, [room])

  function handleChange(event) {
    const { name, value } = event.target
    setRoom({ ...room, [name]: value })
    console.log(room)
  }

  async function handleSubmit(event) {
    event.preventDefault()
    try {
      setError('')
      await axios.post('/room/makeRoom', room)
      setRoom(INIT_ROOM)
    } catch (error) {
      catchErrors(error, setError)
    }
  }

  //SOCKET 관련 시작

  function enterChatroom(rName) {    //방 입장하기
    socket.emit('joinRoom', rName)
    console.log(`joinRoom : ${rName} 입장`)
  }

  const sendMsg = (e) => {
    e.preventDefault()
    socket.emit("chat", {
      roomName: roomName,
      msg: inner,
    });
  }

  useEffect(() => {
    socket.emit("chat", {
      roomName: roomName,
      msg: singleChat
    })
    socket.on('broadcast', (msg) => {
      console.log(msg)
      setSingleChat(msg)
    })
  }, [singleChat])

  return (
    <>
      <Menu />
      <Row className="mr-0">
        <Col className="list" md={5}>
          <Tabs defaultActiveKey="closed" id="uncontrolled-tab-example">
            <Tab eventKey="closed" title="내 채팅" onClick={handleChato} >
              <ClosedList enterChatroom={enterChatroom} setRoomName={setRoomName} />
            </Tab>
            <Tab eventKey="open" title="공개방" >
              <OpenList enterChatroom={enterChatroom} setRoomName={setRoomName} />
            </Tab>
          </Tabs>
        </Col>
        <Col style={{ padding: "0" }}>
          {chat ? <Chat handleChatc={handleChatc} sendMsg={sendMsg} singleChat={singleChat} setSingleChat={setSingleChat} roomName={roomName} /> : null}

          <div style={{ position: "fixed", bottom: "20px", right: "30px" }}>
            <Button variant="primary" onClick={handleShow} size="lg" block>
              생성
                        </Button>

            <Button variant="secondary" onClick={handleShow2} size="lg" block>
              참가
                        </Button>
          </div>

          <Modal show={show} onHide={handleClose}>
            <Modal.Header closeButton>
              <Modal.Title>방 생성</Modal.Title>
            </Modal.Header>
            {error && <Alert variant='danger'>
              {error}
            </Alert>}
            <Modal.Body>
              <Form onSubmit={handleSubmit}>
                <Form.Group as={Row} controlId="chatName">
                  <Form.Label column sm={4}>방 이름</Form.Label>
                  <Col>
                    <Form.Control name='roomName' type='text' value={room.roomName} onChange={handleChange} />
                  </Col>
                </Form.Group>
                <Form.Group as={Row} controlId="chatInterest">
                  <Form.Label column sm={4}>관심 분야</Form.Label>
                  <Col>
                    <Form.Control as="select" defaultValue="Choose..." name='interest' type='text' value={room.interest} onChange={handleChange}>
                      <option>Choose...</option>
                      <option>과학</option>
                      <option>수학</option>
                      <option>예술</option>
                      <option>언어</option>
                      <option>취미</option>
                    </Form.Control>
                    {/* <Form.Control type="text" /> */}
                  </Col>
                </Form.Group>
                <Form.Group as={Row} controlId="chatIsOpen">
                  <Form.Label column sm={4}>공개방</Form.Label>
                  <Col>
                    <Form.Check
                      type="checkbox"
                      checked={room.isOpen}
                      name='isOpen'
                      onChange={() => setRoom({ ...room, isOpen: !room.isOpen })} />
                  </Col>
                </Form.Group>
                {
                  (room.isOpen)
                    ? (<p><b>공개방</b>으로 개설되어 공개방 목록에 공개되며, 코드를 공유하여 참가할 수도 있습니다.</p>)
                    : (<p><b>비밀방</b>으로 개설되며, 참여자들에게 코드를 공유해야합니다.</p>)
                }
                <Form.Group as={Row}>
                  <Col sm={{ span: 5, offset: 4 }}>
                    <Button type="submit" >방 생성</Button>
                  </Col>
                </Form.Group>
              </Form>
            </Modal.Body>
          </Modal>

          <Modal show={show2} onHide={handleClose2}>
            <Modal.Header closeButton>
              <Modal.Title>참여 코드로 채팅 참가</Modal.Title>
            </Modal.Header>
            <Modal.Body>
              <Form onSubmit={() => { console.log('제출') }}>
                <Form.Group as={Row} controlId="formCodeE">
                  <Form.Label column sm={4}>참여 코드</Form.Label>
                  <Col>
                    <Form.Control type="text" />
                  </Col>
                </Form.Group>
                <Form.Group as={Row}>
                  <Col sm={{ span: 5, offset: 4 }}>
                    <Button type="submit">참가</Button>
                  </Col>
                </Form.Group>
              </Form>
            </Modal.Body>
          </Modal>
        </Col>
      </Row>
    </>
  );
}

export default Home;