process.env.DATABASE_PATH = ':memory:';
process.env.THEMES_DIR = './themes';
process.env.FRONTEND_DIST = './frontend/dist';

import { Test } from '@nestjs/testing';
import { INestApplication, ValidationPipe } from '@nestjs/common';
import { HttpAdapterHost } from '@nestjs/core';
import cookieParser from 'cookie-parser';
import * as express from 'express';
import request from 'supertest';
import { CookieAccessInfo } from 'cookiejar';
import { AppModule } from '../../backend/src/app.module';
import { GlobalExceptionFilter } from '../../backend/src/common/filters/global-exception.filter';
import { CsrfMiddleware } from '../../backend/src/common/middleware/csrf.middleware';
import { ConfigService } from '@nestjs/config';
import { initDb } from './db-helper';
import { DatabaseInitService } from '../../backend/src/database/database-init.service';

describe('Auth refresh rotation', () => {
  let app: INestApplication;

beforeAll(async () => {
    const moduleRef = await Test.createTestingModule({ imports: [AppModule] }).compile();
    app = moduleRef.createNestApplication();
    app.use(cookieParser());
    app.use(express.json({ limit: '1mb' }));
    const csrfMw = new CsrfMiddleware(app.get(ConfigService));
    app.use((req: any, res: any, next: any) => csrfMw.use(req, res, next));
    app.useGlobalPipes(new ValidationPipe({ whitelist: true, forbidNonWhitelisted: false, transform: true }));
    const httpAdapterHost = app.get(HttpAdapterHost);
    app.useGlobalFilters(new GlobalExceptionFilter(httpAdapterHost));
    await app.init();
    await initDb(app);

    const server = app.getHttpServer();
    await request(server).post('/api/v1/auth/register-first-admin')
      .send({ username: 'admin', password: 'Sup3rSecret!Pass' })
      .expect(201);
  });

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

  it('GET /api/v1/auth/csrf always sets the cookie and returns a non-empty token', async () => {
    const server = app.getHttpServer();
    const agent = request.agent(server);
    const res = await agent.get('/api/v1/auth/csrf').expect(200);
    expect(res.body.csrfToken).toBeDefined();
    expect(res.body.csrfToken.length).toBeGreaterThan(0);
    const cookies = res.headers['set-cookie'] as unknown as string[];
    expect(cookies?.some((c) => c.startsWith('csrf='))).toBe(true);
  });

  it('login returns an access token and sets the rt refresh cookie', async () => {
    const server = app.getHttpServer();
    const agent = request.agent(server);

    const res = await agent.post('/api/v1/auth/login')
      .send({ username: 'admin', password: 'Sup3rSecret!Pass' })
      .expect(201);
    expect(res.body.accessToken).toBeDefined();
    const cookies = res.headers['set-cookie'] as unknown as string[];
    const rt = cookies.find((c) => c.startsWith('rt='));
    expect(rt).toBeDefined();
    expect(rt).toMatch(/HttpOnly/);
  });

  it('refresh rotates the refresh cookie and returns a new access token', async () => {
    const server = app.getHttpServer();
    const agent = request.agent(server);

    await agent.post('/api/v1/auth/login')
      .send({ username: 'admin', password: 'Sup3rSecret!Pass' })
      .expect(201);

    const cookies: any = agent.jar.getCookies(CookieAccessInfo.All);
    const rt = cookies.find((c: any) => c.name === 'rt');
    const csrf = cookies.find((c: any) => c.name === 'csrf');
    expect(rt).toBeDefined();
    expect(csrf).toBeDefined();

    const refresh = await agent.post('/api/v1/auth/refresh')
      .set('X-CSRF-Token', csrf.value)
      .set('Cookie', `rt=${rt.value}`)
      .send({})
      .expect(200);
    expect(refresh.body.accessToken).toBeDefined();
    expect(refresh.body.user.username).toBe('admin');
  });

  it('logout invalidates the refresh token', async () => {
    const server = app.getHttpServer();
    const agent = request.agent(server);

    await agent.post('/api/v1/auth/login')
      .send({ username: 'admin', password: 'Sup3rSecret!Pass' })
      .expect(201);

    const cookies: any = agent.jar.getCookies(CookieAccessInfo.All);
    const rt = cookies.find((c: any) => c.name === 'rt');
    const csrf = cookies.find((c: any) => c.name === 'csrf');

    await agent.post('/api/v1/auth/logout')
      .set('X-CSRF-Token', csrf.value)
      .set('Cookie', `rt=${rt.value}`)
      .send({})
      .expect(204);

    // Reusing the same refresh cookie must fail
    await agent.post('/api/v1/auth/refresh')
      .set('X-CSRF-Token', csrf.value)
      .set('Cookie', `rt=${rt.value}`)
      .send({})
      .expect(401);
  });
});