import { Test } from '@nestjs/testing';
import type { INestApplication } from '@nestjs/common';
import { AppModule } from '../src/app.module.js';
import { SapClientService } from '../src/sap/sap-client.service.js';
import { SL_RESOURCES } from '../src/sl/sl-resources.js';

// Prueba contra un Service Layer real (usa apps/api/.env). Solo con SAP_LIVE=1:
//   SAP_LIVE=1 npm run test:e2e
describe.skipIf(!process.env.SAP_LIVE)('SAP Service Layer (live)', () => {
  let app: INestApplication;
  let sap: SapClientService;

  beforeAll(async () => {
    const moduleRef = await Test.createTestingModule({ imports: [AppModule] }).compile();
    app = moduleRef.createNestApplication();
    await app.init();
    sap = app.get(SapClientService);
  }, 30000);

  afterAll(async () => {
    await app.close();
  });

  it('10 peticiones concurrentes se encolan y no agotan el timeout', async () => {
    const res = await Promise.all(
      Array.from({ length: 10 }, () => sap.get<{ value: unknown[] }>('Items', { $top: 1, $select: 'ItemCode' })),
    );
    expect(res.every((r) => r.status === 200 && Array.isArray(r.data.value))).toBe(true);
  }, 30000);

  // Detecta nombres de entidad mal escritos o no disponibles en este Service Layer.
  it.each(SL_RESOURCES.map((r) => r.name))('el recurso registrado %s existe en el Service Layer', async (name) => {
    const res = await sap.get<{ value: unknown[] }>(name, { $top: 1 });
    expect(res.status).toBe(200);
    expect(Array.isArray(res.data.value)).toBe(true);
  }, 30000);
});