Header.js

import React, { Component } from 'react';
import { Link } from 'react-router-dom';
import {
  Menu,
  Container,
  Button,
  Segment,
  Visibility,
  Image,
  Responsive,
  Sidebar,
  Icon
} from 'semantic-ui-react';
import { connect } from 'react-redux';
import { getUserData } from '../actions';
import KSZKlogo from './images/kszk_logo.svg';

const menuItems = [
  {
    text: 'Főoldal',
    to: '/home',
    prefix: <Image size='mini' src={KSZKlogo} style={{ marginRight: '1.5em' }} />,
    permissionLevel: 0,
  },
  {
    text: 'Hírek',
    to: '/news',
    prefix: '',
    permissionLevel: 0,
  },
  {
    text: 'Köreink',
    to: '/groups',
    prefix: '',
    permissionLevel: 0,
  },
  {
    text: 'Ütemterv',
    to: '/schedule',
    prefix: '',
    permissionLevel: 2,
  },
  {
    text: 'Statisztika',
    to: '/statistics',
    prefix: '',
    permissionLevel: 3,
  },
  {
    text: 'Jelentkezések',
    to: '/applications',
    prefix: '',
    permissionLevel: 3,
  },
  {
    text: 'Házi feladatok',
    to: '/homework',
    prefix: '',
    permissionLevel: 2,
  },
];

const FixedMenu = ({ user }) => (
  <Menu fixed='top' size='large' pointing>
    <Container>
      {menuItems.map((item, i) =>
        (user.permission >= item.permissionLevel ||
          (item.permissionLevel === 0)
          ?
            <Menu.Item key={i} as={Link} to={item.to}>{item.text}</Menu.Item>
          :
          null))}

      <Menu.Menu position='right'>
        <Menu.Item className='item'>
          {
            user.id ?
              <Button.Group>
                <Button primary as={Link} to='/profile'>Profilom</Button>
                <Button as='a' href='/api/v1/logout/'icon='sign out' />
              </Button.Group>
            :
              <Button as='a' href='/api/v1/login/authsch/' >Bejelentkezés</Button>
          }
        </Menu.Item>
      </Menu.Menu>
    </Container>
  </Menu>
);

class MobileContainer extends Component {
  constructor(props) {
    super(props);
    this.state = {
      sidebarVisible: false,
    };
  }
  componentWillMount() {
    this.props.getUserData();
  }

  render() {
    const visible = this.state.sidebarVisible;
    const { children, user } = this.props;
    return(
      <Responsive {...Responsive.onlyMobile}>
        <Segment inverted textAlign='center' vertical>
          <Container>
          <Menu inverted secondary>
            <Menu.Item onClick={visible ? this.handleHideClick : this.handleShowClick}><Icon name='sidebar'/></Menu.Item>
          </Menu>
          </Container>
        </Segment>
        <Sidebar.Pushable>
          <Sidebar
            as={Menu}
            animation='overlay'
            icon='labeled'
            inverted
            vertical
            visible={visible}
            width='thin'
          >
          {menuItems.map((item, i) =>
            (this.props.user.permission >= item.permissionLevel ||
              (item.permissionLevel === 0) ?
                <Menu.Item key={i} as={Link} to={item.to} onClick={this.handleSidebarHide}>{item.prefix}{item.text}</Menu.Item>
                :
              null))}
          </Sidebar>
            <Sidebar.Pusher onClick={this.handleSidebarHide}>
            {children}
          </Sidebar.Pusher>
        </Sidebar.Pushable>
    </Responsive>);
  }

  handleShowClick = () => this.setState({ sidebarVisible: true })
  handleHideClick = () => this.setState({ sidebarVisible: false })
  handleSidebarHide = () => this.setState({ sidebarVisible: false })
}


class DesktopContainer extends Component {
  constructor(props) {
    super(props);
    this.state = {
      visible: false,
    };
  }
  componentWillMount() {
    this.props.getUserData();
  }

  hideFixedMenu() {
    this.setState({ visible: false });
  }

  showFixedMenu() {
    this.setState({ visible: true });
  }

  render() {
    const { visible } = this.state.visible;
    const { children, user } = this.props;
    return (
      <Responsive {...Responsive.onlyComputer}>
        {visible ? <FixedMenu user={this.props.user} /> : null}
        <Visibility
          onBottomPassed={() => this.showFixedMenu()}
          onBottomVisible={() => this.hideFixedMenu()}
          once={false}
        >
          <Segment inverted textAlign='center' vertical>
            <Container>
              <Menu inverted secondary stackable size='large'>

                {menuItems.map((item, i) =>
                  (this.props.user.permission >= item.permissionLevel ||
                    (item.permissionLevel === 0) ?
                      <Menu.Item key={i} as={Link} to={item.to}>{item.prefix}{item.text}</Menu.Item>
                      :
                    null))}

                <Menu.Item position='right'>
                  {
                    this.props.user.id ?
                      <Button.Group>
                        <Button inverted as={Link} to='/profile'>Profilom</Button>
                        <Button as='a' href='/api/v1/logout/' icon='sign out' />
                      </Button.Group>
                    :
                      <Button as='a' href='/api/v1/login/authsch/' inverted>Bejelentkezés</Button>
                  }
                </Menu.Item>

              </Menu>
            </Container>
          </Segment>
        </Visibility>
        {children}
      </Responsive>
    );
  }
}

const Header = ({ children, user, getUserData }) => (
  <div>
    <DesktopContainer user={user} getUserData={getUserData}>{children}</DesktopContainer>
    <MobileContainer user={user} getUserData={getUserData}>{children}</MobileContainer>
  </div>
)

const mapStateToProps = ({ user }) => ({
  user,
});

export default connect(mapStateToProps, { getUserData })(Header);