text: import { inject as service } from '@ember/service';
  import { computed } from '@ember/object';
  import Model from 'ember-data/model';
  import attr from 'ember-data/attr';
  
  export default Model.extend({
    system: service(),
  
    name: attr('string'),
    address: attr('string'),
    serfPort: attr('string'),
    rpcPort: attr('string'),
    tags: attr({ defaultValue: () => ({}) }),
    status: attr('string'),
    datacenter: attr('string'),
    region: attr('string'),
  
    rpcAddr: computed('address', 'port', function() {
      const { address, rpcPort } = this.getProperties('address', 'rpcPort');
      return address && rpcPort && `${address}:${rpcPort}`;
    }),
  
    isLeader: computed('system.leader.rpcAddr', function() {
      return this.get('system.leader.rpcAddr') === this.get('rpcAddr');
    }),
  });
  