import React, { useState } from 'react';
import { useHistory } from "react-router-dom";

import { Box, Container, Fab, Card, CardContent, Typography, Input } from '@material-ui/core';
import GroupAddRounded from '@material-ui/icons/GroupAddRounded';
import { makeStyles } from '@material-ui/core/styles';
import authManager from '../AuthManager'

const useStyles = makeStyles((theme) => ({
  root: {
    '& > *': {
      margin: theme.spacing(1),
    },
  },
  extendedIcon: {
    marginRight: theme.spacing(1),
  },
  wizardCard: {
    borderRadius: 8,
    maxWidth: 360,
    margin: "16px auto"
  }, textField: {
    margin: theme.spacing(1),
  }
}))

export default function ServerSetup(props) {
  const classes = useStyles()
  const history = useHistory();
  const [password, setPassword] = useState('');
  const [passwordRepeat, setPasswordRepeat] = useState('');
  const [loading, setLoading] = useState(false);

  const isValid = () => password && password === passwordRepeat

  const handleSubmit = async e => {
    e.preventDefault()
    setLoading(true)
    if (!isValid())
      return
    if (await authManager.setup(password)) {
      history.replace('/')
    }
  }

  return (
    <Container className='message-list'>
      <Card className={classes.wizardCard} disabled={loading}>
        <CardContent component="form" onSubmit={handleSubmit}>
          <Typography gutterBottom variant="h5" component="h2">
          Jami Web Node setup
          </Typography>
          <Typography variant="body2" color="textSecondary" component="p">
            Welcome to the Jami web node setup.<br/>
            Let's start by creating a new administrator account to control access to the server configuration.
          </Typography>

          <Box style={{ textAlign: 'center', marginTop: 8, marginBottom: 16 }}>
          <div><Input className={classes.textField} value="admin" name="username" autoComplete="username" disabled /></div>
          <div><Input
            className={classes.textField}
            value={password}
            onChange={e => setPassword(e.target.value)}
            name="password"
            type='password'
            placeholder="New password"
            autoComplete="new-password" />
          </div>
          <div><Input
            className={classes.textField}
            value={passwordRepeat}
            onChange={e => setPasswordRepeat(e.target.value)}
            name="password"
            error={!!passwordRepeat && !isValid()}
            type='password'
            placeholder="Repeat password"
            autoComplete="new-password" /></div>
          </Box>
          <Box style={{ textAlign: 'center', marginTop: 24 }}>
            <Fab variant='extended' color='primary' type='submit' disabled={!isValid()}>
              <GroupAddRounded className={classes.extendedIcon} />
              Create admin account
            </Fab>
          </Box>
        </CardContent>
      </Card>
    </Container>)
}