import { TestBed } from '@angular/core/testing'
import { UsernamePipe } from './username.pipe'
import {
  HttpClientTestingModule,
  HttpTestingController,
} from '@angular/common/http/testing'
import { environment } from 'src/environments/environment'
import { PermissionsService } from '../services/permissions.service'
import { UserService } from '../services/rest/user.service'

describe('UsernamePipe', () => {
  let pipe: UsernamePipe
  let httpTestingController: HttpTestingController
  let permissionsService: PermissionsService

  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [UsernamePipe, PermissionsService],
      imports: [HttpClientTestingModule],
    })

    httpTestingController = TestBed.inject(HttpTestingController)
    permissionsService = TestBed.inject(PermissionsService)
    const permissionsSpy = jest.spyOn(permissionsService, 'currentUserCan')
    permissionsSpy.mockImplementation((action, type) => {
      return true
    })
    pipe = TestBed.inject(UsernamePipe)
  })

  afterEach(() => {
    httpTestingController.verify()
  })

  it('should transform user id to username', () => {
    const req = httpTestingController.expectOne(
      `${environment.apiBaseUrl}users/?page=1&page_size=100000`
    )
    req.flush({
      results: [
        {
          id: 2,
          username: 'username2',
        },
        {
          id: 3,
          username: 'username3',
          first_name: 'User',
          last_name: 'Name3',
        },
      ],
    })

    let username = pipe.transform(2)
    expect(username).toEqual('username2')

    username = pipe.transform(3)
    expect(username).toEqual('User Name3')

    username = pipe.transform(4)
    expect(username).toEqual('')
  })

  it('should show generic label when no users retrieved', () => {
    const req = httpTestingController.expectOne(
      `${environment.apiBaseUrl}users/?page=1&page_size=100000`
    )
    req.flush(null)

    let username = pipe.transform(4)
    expect(username).toEqual('Shared')
  })
})