import { Test, TestingModule } from '@nestjs/testing';
import { TokenService } from '../src/auth/services/token.service';
import { HttpService } from '@nestjs/axios';
import { ConfigService } from '@nestjs/config';
import { of } from 'rxjs';

describe('TokenService', () => {
  let service: TokenService;
  const mockHttp = { post: jest.fn() };
  const mockConfig = {
    get: (key: string) => {
      const map = {
        'keycloak.serverUrl': 'https://keycloak-dcb.app.cameleonapp.com',
        'keycloak.realm': 'master',
        'keycloak.clientId': 'dcb-cc',
        'keycloak.clientSecret': 'secret',
        'keycloak.tokenBufferSeconds': 30,
      };
      return map[key];
    },
  };

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        TokenService,
        { provide: HttpService, useValue: mockHttp },
        { provide: ConfigService, useValue: mockConfig },
      ],
    }).compile();

    service = module.get<TokenService>(TokenService);
  });

  it('should acquire a token', async () => {
    mockHttp.post.mockReturnValue(of({ data: { access_token: 'abc123', expires_in: 60 } }));
    const token = await service.acquireToken();
    expect(token).toBe('abc123');
  });
});