content: import React from 'react';
  import Column from 'flavours/glitch/features/ui/components/column';
  import ColumnLink from 'flavours/glitch/features/ui/components/column_link';
  import ColumnSubheading from 'flavours/glitch/features/ui/components/column_subheading';
  import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
  import { connect } from 'react-redux';
  import { openModal } from 'flavours/glitch/actions/modal';
  import PropTypes from 'prop-types';
  import ImmutablePropTypes from 'react-immutable-proptypes';
  import ImmutablePureComponent from 'react-immutable-pure-component';
  import { me, profile_directory, showTrends } from 'flavours/glitch/util/initial_state';
  import { fetchFollowRequests } from 'flavours/glitch/actions/accounts';
  import { List as ImmutableList } from 'immutable';
  import { createSelector } from 'reselect';
  import { fetchLists } from 'flavours/glitch/actions/lists';
  import { preferencesLink } from 'flavours/glitch/util/backend_links';
  import NavigationBar from '../compose/components/navigation_bar';
  import LinkFooter from 'flavours/glitch/features/ui/components/link_footer';
  import TrendsContainer from './containers/trends_container';
  
  const messages = defineMessages({
    heading: { id: 'getting_started.heading', defaultMessage: 'Getting started' },
    home_timeline: { id: 'tabs_bar.home', defaultMessage: 'Home' },
    notifications: { id: 'tabs_bar.notifications', defaultMessage: 'Notifications' },
    public_timeline: { id: 'navigation_bar.public_timeline', defaultMessage: 'Federated timeline' },
    navigation_subheading: { id: 'column_subheading.navigation', defaultMessage: 'Navigation' },
    settings_subheading: { id: 'column_subheading.settings', defaultMessage: 'Settings' },
    community_timeline: { id: 'navigation_bar.community_timeline', defaultMessage: 'Local timeline' },
    direct: { id: 'navigation_bar.direct', defaultMessage: 'Direct messages' },
    bookmarks: { id: 'navigation_bar.bookmarks', defaultMessage: 'Bookmarks' },
    preferences: { id: 'navigation_bar.preferences', defaultMessage: 'Preferences' },
    settings: { id: 'navigation_bar.app_settings', defaultMessage: 'App settings' },
    follow_requests: { id: 'navigation_bar.follow_requests', defaultMessage: 'Follow requests' },
    lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
    keyboard_shortcuts: { id: 'navigation_bar.keyboard_shortcuts', defaultMessage: 'Keyboard shortcuts' },
    lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
    lists_subheading: { id: 'column_subheading.lists', defaultMessage: 'Lists' },
    misc: { id: 'navigation_bar.misc', defaultMessage: 'Misc' },
    menu: { id: 'getting_started.heading', defaultMessage: 'Getting started' },
    profile_directory: { id: 'getting_started.directory', defaultMessage: 'Profile directory' },
  });
  
  const makeMapStateToProps = () => {
    const getOrderedLists = createSelector([state => state.get('lists')], lists => {
      if (!lists) {
        return lists;
      }
  
      return lists.toList().filter(item => !!item).sort((a, b) => a.get('title').localeCompare(b.get('title')));
    });
  
    const mapStateToProps = state => ({
      lists: getOrderedLists(state),
      myAccount: state.getIn(['accounts', me]),
      columns: state.getIn(['settings', 'columns']),
      unreadFollowRequests: state.getIn(['user_lists', 'follow_requests', 'items'], ImmutableList()).size,
      unreadNotifications: state.getIn(['notifications', 'unread']),
    });
  
    return mapStateToProps;
  };
  
  const mapDispatchToProps = dispatch => ({
    fetchFollowRequests: () => dispatch(fetchFollowRequests()),
    fetchLists: () => dispatch(fetchLists()),
    openSettings: () => dispatch(openModal('SETTINGS', {})),
  });
  
  const badgeDisplay = (number, limit) => {
    if (number === 0) {
      return undefined;
    } else if (limit && number >= limit) {
      return `${limit}+`;
    } else {
      return number;
    }
  };
  
  const NAVIGATION_PANEL_BREAKPOINT = 600 + (285 * 2) + (10 * 2);
  
   export default @connect(makeMapStateToProps, mapDispatchToProps)
   @injectIntl
   class GettingStarted extends ImmutablePureComponent {
  
    static contextTypes = {
      router: PropTypes.object.isRequired,
    };
  
    static propTypes = {
      intl: PropTypes.object.isRequired,
      myAccount: ImmutablePropTypes.map.isRequired,
      columns: ImmutablePropTypes.list,
      multiColumn: PropTypes.bool,
      fetchFollowRequests: PropTypes.func.isRequired,
      unreadFollowRequests: PropTypes.number,
      unreadNotifications: PropTypes.number,
      lists: ImmutablePropTypes.list,
      fetchLists: PropTypes.func.isRequired,
      openSettings: PropTypes.func.isRequired,
    };
  
    componentWillMount () {
      this.props.fetchLists();
    }
  
    componentDidMount () {
      const { fetchFollowRequests, multiColumn } = this.props;
  
      if (!multiColumn && window.innerWidth >= NAVIGATION_PANEL_BREAKPOINT) {
        this.context.router.history.replace('/home');
        return;
      }
  
      fetchFollowRequests();
    }
  
    render () {
      const { intl, myAccount, columns, multiColumn, unreadFollowRequests, unreadNotifications, lists, openSettings } = this.props;
  
      const navItems = [];
      let listItems = [];
  
      if (multiColumn) {
        if (!columns.find(item => item.get('id') === 'HOME')) {
          navItems.push(<ColumnLink key='0' icon='home' text={intl.formatMessage(messages.home_timeline)} to='/home' />);
        }
  
        if (!columns.find(item => item.get('id') === 'NOTIFICATIONS')) {
          navItems.push(<ColumnLink key='1' icon='bell' text={intl.formatMessage(messages.notifications)} badge={badgeDisplay(unreadNotifications)} to='/notifications' />);
        }
  
        if (!columns.find(item => item.get('id') === 'COMMUNITY')) {
          navItems.push(<ColumnLink key='2' icon='users' text={intl.formatMessage(messages.community_timeline)} to='/public/local' />);
        }
  
        if (!columns.find(item => item.get('id') === 'PUBLIC')) {
          navItems.push(<ColumnLink key='3' icon='globe' text={intl.formatMessage(messages.public_timeline)} to='/public' />);
        }
      }
  
      if (!multiColumn || !columns.find(item => item.get('id') === 'DIRECT')) {
        navItems.push(<ColumnLink key='4' icon='envelope' text={intl.formatMessage(messages.direct)} to='/conversations' />);
      }
  
      if (!multiColumn || !columns.find(item => item.get('id') === 'BOOKMARKS')) {
        navItems.push(<ColumnLink key='5' icon='bookmark' text={intl.formatMessage(messages.bookmarks)} to='/bookmarks' />);
      }
  
      if (myAccount.get('locked') || unreadFollowRequests > 0) {
        navItems.push(<ColumnLink key='6' icon='user-plus' text={intl.formatMessage(messages.follow_requests)} badge={badgeDisplay(unreadFollowRequests, 40)} to='/follow_requests' />);
      }
  
      if (profile_directory) {
        navItems.push(<ColumnLink key='7' icon='address-book' text={intl.formatMessage(messages.profile_directory)} to='/directory' />);
      }
  
      navItems.push(<ColumnLink key='8' icon='ellipsis-h' text={intl.formatMessage(messages.misc)} to='/getting-started-misc' />);
  
      listItems = listItems.concat([
        <div key='9'>
          <ColumnLink key='10' icon='bars' text={intl.formatMessage(messages.lists)} to='/lists' />
          {lists.filter(list => !columns.find(item => item.get('id') === 'LIST' && item.getIn(['params', 'id']) === list.get('id'))).map(list =>
            <ColumnLink key={(11 + Number(list.get('id'))).toString()} to={`/lists/${list.get('id')}`} icon='list-ul' text={list.get('title')} />
          )}
        </div>,
      ]);
  
      return (
        <Column bindToDocument={!multiColumn} name='getting-started' icon='asterisk' heading={intl.formatMessage(messages.heading)} label={intl.formatMessage(messages.menu)} hideHeadingOnMobile>
          <div className='scrollable optionally-scrollable'>
            <div className='getting-started__wrapper'>
              {!multiColumn && <NavigationBar account={myAccount} />}
              {multiColumn && <ColumnSubheading text={intl.formatMessage(messages.navigation_subheading)} />}
              {navItems}
              <ColumnSubheading text={intl.formatMessage(messages.lists_subheading)} />
              {listItems}
              <ColumnSubheading text={intl.formatMessage(messages.settings_subheading)} />
              { preferencesLink !== undefined && <ColumnLink icon='cog' text={intl.formatMessage(messages.preferences)} href={preferencesLink} /> }
              <ColumnLink icon='cogs' text={intl.formatMessage(messages.settings)} onClick={openSettings} />
            </div>
  
            <LinkFooter />
          </div>
  
          {multiColumn && showTrends && <TrendsContainer />}
        </Column>
      );
    }
  
  }
  