import Ember from 'ember';
import {moduleFor, test} from 'ember-qunit';
import FactoryGuy, {manualSetup, mockCreate, build, mockTeardown, make} from 'ember-data-factory-guy';
import wait from 'ember-test-helpers/wait';

moduleFor('service:store', 'TODO: put something here', {
  // Specify the other units that are required for this test.
  needs: [
    'model:user',
    'model:file',
  ],
  
  beforeEach() {
    manualSetup(this.container);
  },
  
  afterEach() {
    mockTeardown();
  },
});

const Wrapper = Ember.Object.extend({
  user: null,
  
  hasUserFiles: Ember.computed('user.files.[]', function() {
    return this.get('user').hasMany('files').ids().length;
  }),
});

test('it recomputes computed property', function(assert) {
  let store = this.subject();
  FactoryGuy.setStore(store);
  
  const user = make('user');
  const file = make('file', {user});
  
  assert.equal(file.belongsTo('user').id(), user.get('id'));
  assert.deepEqual(user.hasMany('files').ids(), [file.get('id')]);

  const wrapper = Wrapper.create({
    user,
  });
  
  assert.equal(wrapper.get('hasUserFiles'), 1);
  
  
  const file2 = make('file', {user});
  assert.deepEqual(user.hasMany('files').ids(), [file.get('id'), file2.get('id')]);
  
  // uncomment this line or change ember-data to 2.10
  //wrapper.notifyPropertyChange('hasUserFiles');
  assert.equal(wrapper.get('hasUserFiles'), 2);
});