import React from 'react';
import PropTypes from 'prop-types';
import { ValidatorForm } from 'react-material-ui-form-validator';

import { withStyles } from '@material-ui/core/styles';
import Button from '@material-ui/core/Button';
import LinearProgress from '@material-ui/core/LinearProgress';
import Typography from '@material-ui/core/Typography';
import Box from '@material-ui/core/Box';

import PasswordValidator from '../components/PasswordValidator';
import { withAuthenticationContext } from '../authentication/Context';

const styles = theme => ({
  loadingSettings: {
    margin: theme.spacing.unit,
  },
  loadingSettingsDetails: {
    margin: theme.spacing.unit * 4,
    textAlign: "center"
  },
  textField: {
    width: "100%"
  },
  button: {
    marginRight: theme.spacing.unit * 2,
    marginTop: theme.spacing.unit * 2,
  }
});

class SecuritySettingsForm extends React.Component {

  onSubmit = () => {
    this.props.onSubmit();
    this.props.authenticationContext.refresh();
  }

  render() {
    const { classes, securitySettingsFetched, securitySettings, errorMessage, handleValueChange, onReset } = this.props;
    return (
      !securitySettingsFetched ?
        <div className={classes.loadingSettings}>
          <LinearProgress className={classes.loadingSettingsDetails} />
          <Typography variant="h4" className={classes.loadingSettingsDetails}>
            Loading...
          </Typography>
        </div>
        :
        securitySettings ?
          <ValidatorForm onSubmit={this.onSubmit} ref="SecuritySettingsForm">
            <PasswordValidator
              validators={['required', 'matchRegexp:^.{0,64}$']}
              errorMessages={['JWT Secret Required', 'JWT Secret must be 64 characters or less']}
              name="jwt_secret"
              label="JWT Secret"
              className={classes.textField}
              value={securitySettings.jwt_secret}
              onChange={handleValueChange('jwt_secret')}
              margin="normal"
            />
            <Typography component="div" variant="body1">
              <Box bgcolor="primary.main" color="primary.contrastText" p={2} m={2}>
                If you modify the JWT Secret, all users will be logged out.
              </Box>
            </Typography>
            <Button variant="contained" color="primary" className={classes.button} type="submit">
              Save
            </Button>
            <Button variant="contained" color="secondary" className={classes.button} onClick={onReset}>
              Reset
      		  </Button>
          </ValidatorForm>
          :
          <div className={classes.loadingSettings}>
            <Typography variant="h4" className={classes.loadingSettingsDetails}>
              {errorMessage}
            </Typography>
            <Button variant="contained" color="secondary" className={classes.button} onClick={onReset}>
              Reset
      		  </Button>
          </div>
    );
  }
}

SecuritySettingsForm.propTypes = {
  classes: PropTypes.object.isRequired,
  securitySettingsFetched: PropTypes.bool.isRequired,
  securitySettings: PropTypes.object,
  errorMessage: PropTypes.string,
  onSubmit: PropTypes.func.isRequired,
  onReset: PropTypes.func.isRequired,
  handleValueChange: PropTypes.func.isRequired,
  authenticationContext: PropTypes.object.isRequired,
};

export default withAuthenticationContext(withStyles(styles)(SecuritySettingsForm));