text: //
  //   Copyright 2009-2014 Ilkka Oksanen <iao@iki.fi>
  //
  //   Licensed under the Apache License, Version 2.0 (the "License");
  //   you may not use this file except in compliance with the License.
  //   You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  //   Unless required by applicable law or agreed to in writing,
  //   software distributed under the License is distributed on an "AS
  //   IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
  //   express or implied.  See the License for the specific language
  //   governing permissions and limitations under the License.
  //
  
  import Helper from '@ember/component/helper';
  import moment from 'moment';
  
  export default Helper.extend({
    compute(params) {
      const online = params[0];
      const timeStamp = params[1];
      let dateString;
  
      if (online) {
        dateString = '';
      } else if (timeStamp === -1) {
        dateString = 'never';
      } else {
        dateString = moment.unix(timeStamp).fromNow(true);
      }
  
      return dateString;
    }
  });
  