import { TestBed } from '@angular/core/testing';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { Chance } from 'chance';

import { ApiService } from '../api/api.service';
import { EnvironmentService } from '../environment/environment.service';
import { EnvironmentServiceMock } from '../environment/environment.service.mock';
import { LoginService } from './login.service';

describe('LoginService', () => {
  const chance = new Chance();

  let httpMock: HttpTestingController;
  let service: LoginService;

  beforeEach(() => {
    TestBed.configureTestingModule({
      imports: [HttpClientTestingModule],
      providers: [
        ApiService,
        LoginService,
        { provide: EnvironmentService, useClass: EnvironmentServiceMock },
      ],
    });

    httpMock = TestBed.inject(HttpTestingController);
    service = TestBed.inject(LoginService);
  });

  afterEach(() => {
    httpMock.verify();
  });

  describe('createWithCredentials()', () => {
    it('emits the accessToken and refreshToken', () => {
      const password = chance.hash();
      const username = chance.hash();

      service.createWithCredentials(username, password);

      const accessToken = chance.hash();
      const refreshToken = chance.hash();

      const req = httpMock.expectOne(`${service.basePath}`);
      expect(req.request.method).toBe('POST');
      req.flush({ accessToken, refreshToken });
    });
  });

  describe('createWithRefreshToken()', () => {
    it('emits the accessToken and refreshToken', () => {
      const token = chance.hash();

      service.createWithRefreshToken(token);

      const accessToken = chance.hash();
      const refreshToken = chance.hash();

      const req = httpMock.expectOne(`${service.basePath}/refresh-token`);
      expect(req.request.method).toBe('POST');
      req.flush({ accessToken, refreshToken });
    });
  });

  describe('delete()', () => {
    it('emits a logout event', () => {
      service.delete();

      const req = httpMock.expectOne(`${service.basePath}`);
      expect(req.request.method).toBe('DELETE');
    });
  });
});