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interface MinimumStoreRequirments {
  userStore: UserStoreState;
  marketerStore: MarketerStoreState;
  currentUserStore: CurrentUserState;
}

describe('GlobalHeaderContainerComponent', () => {
  const userStoreMock: UserStoreState = {
    users: {},
  };
  const currentUserStoreMock: CurrentUserState = {
    state: 'unloaded',
    user_id: null,
  };
  const marketerStoreMock: MarketerStoreState = {
    marketers: {},
  };

  let users: UserStoreState;
  let user: CurrentUserState;
  let marketer: MarketerStoreState;

  beforeEach(async(() => {
    users = userStoreMock;
    user = currentUserStoreMock;
    marketer = marketerStoreMock;

    // This returns a store object that meets the combination requirement of our minimum needed
    // state and the original AppState
    this.buildStore = (): MinimumStoreRequirments | AppState => {
      const store: MinimumStoreRequirments | AppState = <MinimumStoreRequirments | AppState>{};

      store.userStore =  users;
      store.marketerStore = marketer;
      store.currentUserStore = user;

      return store;
    }

    // The mock store that returns the result of `buildStore`
    const StoreMock = {
      dispatch: jasmine.createSpy('dispatch'),
      select: jasmine.createSpy('select').and.callFake((selector: any) => {
        return Observable.of(selector(this.buildStore()));
      }),
    };

    TestBed.configureTestingModule({
      declarations: [
        GlobalHeaderContainerComponent,
      ],
      providers: [
        {
          provide: Store,
          useValue: StoreMock,
        },
      ],
    })
      .overrideComponent(GlobalHeaderContainerComponent, {
        set: {
          template: '',
        }
      })
    ;

    this.buildComponent = () => {
      this.fixture = TestBed.createComponent(GlobalHeaderContainerComponent);
      this.component = this.fixture.componentInstance;
      this.store = TestBed.get(Store);

      this.fixture.detectChanges();
    }
  }));


  it(`should be created`, () => {
    this.buildComponent();
    expect(this.component).toBeTruthy();
  });


  describe(`currentUser$`, () => {
    const currentUser = new User({
      id: 123,
      marketer_id: 1,
      firstname: 'a',
      lastname: 'b',
      superadmin: false,
      email: 'a',
    });

    beforeEach(() => {
      user = {state: 'loaded', user_id: currentUser.id};
      users = {users: {[currentUser.id]: currentUser}};
      this.buildComponent();
    });


    it(`should return the current user`, () => {
      this.component.currentUser$.subscribe((returnUser: any) => {
        expect(returnUser).toEqual(currentUser);
      });
    });

  });

});