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import React, { useState } from 'react';
import { Grid, useMediaQuery, makeStyles, InputLabel, Select, MenuItem, FormControl, Button, TextField, Link } from '@material-ui/core';
import { useTheme } from '@material-ui/core/styles';
import { useDispatch, useSelector } from 'react-redux';
import { useHistory } from 'react-router-dom';
import { sessionActions } from '../../store';
import t from '../../common/localization';
import StartPage from './../../StartPage';
const useStyles = makeStyles(theme => ({
logoContainer: {
textAlign: 'center',
color: theme.palette.primary.main,
},
resetPassword: {
cursor: 'pointer',
}
}));
const LoginForm = () => {
const classes = useStyles();
const dispatch = useDispatch();
const history = useHistory();
const theme = useTheme();
const [failed, setFailed] = useState(false);
const [email, setEmail] = useState('');
const [password, setPassword] = useState('');
const registrationEnabled = useSelector(state => state.session.server ? state.session.server['registration'] : false);
const emailEnabled = useSelector(state => state.session.server ? state.session.server['emailEnabled'] : false);
const handleEmailChange = (event) => {
setEmail(event.target.value);
}
const handlePasswordChange = (event) => {
setPassword(event.target.value);
}
const handleLogin = async (event) => {
event.preventDefault();
const response = await fetch('/api/session', { method: 'POST', body: new URLSearchParams(`email=${email}&password=${password}`) });
if (response.ok) {
const user = await response.json();
dispatch(sessionActions.updateUser(user));
history.push('/');
} else {
setFailed(true);
setPassword('');
}
}
const handleSpecialKey = e => {
if (e.keyCode === 13 && email && password) {
handleLogin(e);
}
}
return (
<StartPage>
<Grid container direction='column' spacing={3}>
{useMediaQuery(theme.breakpoints.down('md')) &&
<Grid item className={classes.logoContainer}>
<svg height="64" width="240">
<use xlinkHref="/logo.svg#img"></use>
</svg>
</Grid>
}
<Grid item>
<TextField
required
fullWidth
error={failed}
label={t('userEmail')}
name='email'
value={email}
autoComplete='email'
autoFocus
onChange={handleEmailChange}
onKeyUp={handleSpecialKey}
helperText={failed && 'Invalid username or password'}
variant='filled' />
</Grid>
<Grid item>
<TextField
required
fullWidth
error={failed}
label={t('userPassword')}
name='password'
value={password}
type='password'
autoComplete='current-password'
onChange={handlePasswordChange}
onKeyUp={handleSpecialKey}
variant='filled' />
</Grid>
<Grid item>
<Button
onClick={handleLogin}
onKeyUp={handleSpecialKey}
variant='contained'
color='secondary'
disabled={!email || !password}
fullWidth>
{t('loginLogin')}
</Button>
</Grid>
<Grid item container>
<Grid item>
<Button onClick={() => history.push('/register')} disabled={!registrationEnabled} color="secondary">
{t('loginRegister')}
</Button>
</Grid>
<Grid item xs>
<FormControl variant="filled" fullWidth>
<InputLabel>{t('loginLanguage')}</InputLabel>
<Select>
<MenuItem value="en">English</MenuItem>
</Select>
</FormControl>
</Grid>
</Grid>
{emailEnabled && <Grid item container justify="flex-end">
<Grid item>
<Link onClick={() => history.push('/reset-password')} className={classes.resetPassword} underline="none">{t('loginReset')}</Link>
</Grid>
</Grid>}
</Grid>
</StartPage>
)
}
export default LoginForm;
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