content: import React from 'react';
  import Column from '../ui/components/column';
  import ColumnLink from '../ui/components/column_link';
  import ColumnSubheading from '../ui/components/column_subheading';
  import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
  import { connect } from 'react-redux';
  import PropTypes from 'prop-types';
  import ImmutablePropTypes from 'react-immutable-proptypes';
  import ImmutablePureComponent from 'react-immutable-pure-component';
  import { me, invitesEnabled, version, profile_directory } from '../../initial_state';
  import { fetchFollowRequests } from '../../actions/accounts';
  import { List as ImmutableList } from 'immutable';
  import { Link } from 'react-router-dom';
  import NavigationBar from '../compose/components/navigation_bar';
  
  const messages = defineMessages({
    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' },
    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' },
    preferences: { id: 'navigation_bar.preferences', defaultMessage: 'Preferences' },
    follow_requests: { id: 'navigation_bar.follow_requests', defaultMessage: 'Follow requests' },
    favourites: { id: 'navigation_bar.favourites', defaultMessage: 'Favourites' },
    blocks: { id: 'navigation_bar.blocks', defaultMessage: 'Blocked users' },
    domain_blocks: { id: 'navigation_bar.domain_blocks', defaultMessage: 'Hidden domains' },
    mutes: { id: 'navigation_bar.mutes', defaultMessage: 'Muted users' },
    pins: { id: 'navigation_bar.pins', defaultMessage: 'Pinned toots' },
    lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
    discover: { id: 'navigation_bar.discover', defaultMessage: 'Discover' },
    personal: { id: 'navigation_bar.personal', defaultMessage: 'Personal' },
    security: { id: 'navigation_bar.security', defaultMessage: 'Security' },
    menu: { id: 'getting_started.heading', defaultMessage: 'Getting started' },
    profile_directory: { id: 'getting_started.directory', defaultMessage: 'Profile directory' },
  });
  
  const mapStateToProps = state => ({
    myAccount: state.getIn(['accounts', me]),
    unreadFollowRequests: state.getIn(['user_lists', 'follow_requests', 'items'], ImmutableList()).size,
  });
  
  const mapDispatchToProps = dispatch => ({
    fetchFollowRequests: () => dispatch(fetchFollowRequests()),
  });
  
  const badgeDisplay = (number, limit) => {
    if (number === 0) {
      return undefined;
    } else if (limit && number >= limit) {
      return `${limit}+`;
    } else {
      return number;
    }
  };
  
  export default @connect(mapStateToProps, mapDispatchToProps)
  @injectIntl
  class GettingStarted extends ImmutablePureComponent {
  
    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,
    };
  
    componentDidMount () {
      const { myAccount, fetchFollowRequests } = this.props;
  
      if (myAccount.get('locked')) {
        fetchFollowRequests();
      }
    }
  
    render () {
      const { intl, myAccount, multiColumn, unreadFollowRequests } = this.props;
  
      const navItems = [];
      let i = 1;
      let height = (multiColumn) ? 0 : 60;
  
      if (multiColumn) {
        navItems.push(
          <ColumnSubheading key={i++} text={intl.formatMessage(messages.discover)} />,
          <ColumnLink key={i++} icon='users' text={intl.formatMessage(messages.community_timeline)} to='/timelines/public/local' />,
          <ColumnLink key={i++} icon='globe' text={intl.formatMessage(messages.public_timeline)} to='/timelines/public' />,
        );
  
        height += 34 + 48*2;
  
        if (profile_directory) {
          navItems.push(
            <ColumnLink key={i++} icon='address-book' text={intl.formatMessage(messages.profile_directory)} href='/explore' />
          );
  
          height += 48;
        }
  
        navItems.push(
          <ColumnSubheading key={i++} text={intl.formatMessage(messages.personal)} />
        );
  
        height += 34;
      } else if (profile_directory) {
        navItems.push(
          <ColumnLink key={i++} icon='address-book' text={intl.formatMessage(messages.profile_directory)} href='/explore' />
        );
  
        height += 48;
      }
  
      navItems.push(
        <ColumnLink key={i++} icon='envelope' text={intl.formatMessage(messages.direct)} to='/timelines/direct' />,
        <ColumnLink key={i++} icon='star' text={intl.formatMessage(messages.favourites)} to='/favourites' />,
        <ColumnLink key={i++} icon='list-ul' text={intl.formatMessage(messages.lists)} to='/lists' />
      );
  
      height += 48*3;
  
      if (myAccount.get('locked')) {
        navItems.push(<ColumnLink key={i++} icon='users' text={intl.formatMessage(messages.follow_requests)} badge={badgeDisplay(unreadFollowRequests, 40)} to='/follow_requests' />);
        height += 48;
      }
  
      if (!multiColumn) {
        navItems.push(
          <ColumnSubheading key={i++} text={intl.formatMessage(messages.settings_subheading)} />,
          <ColumnLink key={i++} icon='gears' text={intl.formatMessage(messages.preferences)} href='/settings/preferences' />,
        );
  
        height += 34 + 48;
      }
  
      return (
        <Column label={intl.formatMessage(messages.menu)}>
          {multiColumn && <div className='column-header__wrapper'>
            <h1 className='column-header'>
              <button>
                <i className='fa fa-bars fa-fw column-header__icon' />
                <FormattedMessage id='getting_started.heading' defaultMessage='Getting started' />
              </button>
            </h1>
          </div>}
  
          <div className='getting-started'>
            <div className='getting-started__wrapper' style={{ height }}>
              {!multiColumn && <NavigationBar account={myAccount} />}
              {navItems}
            </div>
  
            {!multiColumn && <div className='flex-spacer' />}
  
            <div className='getting-started__footer'>
              <ul>
                {invitesEnabled && <li><a href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a> · </li>}
                {multiColumn && <li><Link to='/keyboard-shortcuts'><FormattedMessage id='navigation_bar.keyboard_shortcuts' defaultMessage='Hotkeys' /></Link> · </li>}
                <li><a href='/auth/edit'><FormattedMessage id='getting_started.security' defaultMessage='Security' /></a> · </li>
                <li><a href='/about/more' target='_blank'><FormattedMessage id='navigation_bar.info' defaultMessage='About this instance' /></a> · </li>
                <li><a href='https://joinmastodon.org/apps' target='_blank'><FormattedMessage id='navigation_bar.apps' defaultMessage='Mobile apps' /></a> · </li>
                <li><a href='/terms' target='_blank'><FormattedMessage id='getting_started.terms' defaultMessage='Terms of service' /></a> · </li>
                <li><a href='/settings/applications' target='_blank'><FormattedMessage id='getting_started.developers' defaultMessage='Developers' /></a> · </li>
                <li><a href='https://docs.joinmastodon.org' target='_blank'><FormattedMessage id='getting_started.documentation' defaultMessage='Documentation' /></a> · </li>
                <li><a href='/auth/sign_out' data-method='delete'><FormattedMessage id='navigation_bar.logout' defaultMessage='Logout' /></a></li>
              </ul>
  
              <p>
                <FormattedMessage
                  id='getting_started.open_source_notice'
                  defaultMessage='Mastodon is open source software. You can contribute or report issues on GitHub at {github}.'
                  values={{ github: <span><a href='https://github.com/tootsuite/mastodon' rel='noopener' target='_blank'>tootsuite/mastodon</a> (v{version})</span> }}
                />
              </p>
            </div>
          </div>
        </Column>
      );
    }
  
  }
  