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path: root/app/assets/javascripts/components/features/community_timeline/index.jsx
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import { connect } from 'react-redux';
import PureRenderMixin from 'react-addons-pure-render-mixin';
import StatusListContainer from '../ui/containers/status_list_container';
import Column from '../ui/components/column';
import {
  refreshTimeline,
  updateTimeline,
  deleteFromTimelines
} from '../../actions/timelines';
import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
import ColumnBackButtonSlim from '../../components/column_back_button_slim';
import createStream from '../../stream';

const messages = defineMessages({
  title: { id: 'column.community', defaultMessage: 'Local' }
});

const mapStateToProps = state => ({
  hasUnread: state.getIn(['timelines', 'community', 'unread']) > 0,
  accessToken: state.getIn(['meta', 'access_token'])
});

let subscription;

const CommunityTimeline = React.createClass({

  propTypes: {
    dispatch: React.PropTypes.func.isRequired,
    intl: React.PropTypes.object.isRequired,
    accessToken: React.PropTypes.string.isRequired,
    hasUnread: React.PropTypes.bool
  },

  mixins: [PureRenderMixin],

  componentDidMount () {
    const { dispatch, accessToken } = this.props;

    dispatch(refreshTimeline('community'));

    if (typeof subscription !== 'undefined') {
      return;
    }

    subscription = createStream(accessToken, 'public:local', {

      received (data) {
        switch(data.event) {
        case 'update':
          dispatch(updateTimeline('community', JSON.parse(data.payload)));
          break;
        case 'delete':
          dispatch(deleteFromTimelines(data.payload));
          break;
        }
      }

    });
  },

  componentWillUnmount () {
    // if (typeof subscription !== 'undefined') {
    //   subscription.close();
    //   subscription = null;
    // }
  },

  render () {
    const { intl, hasUnread } = this.props;

    return (
      <Column icon='users' active={hasUnread} heading={intl.formatMessage(messages.title)}>
        <ColumnBackButtonSlim />
        <StatusListContainer type='community' emptyMessage={<FormattedMessage id='empty_column.community' defaultMessage='The local timeline is empty. Write something publicly to get the ball rolling!' />} />
      </Column>
    );
  },

});

export default connect(mapStateToProps)(injectIntl(CommunityTimeline));