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 request from 'supertest';
import { CookieAccessInfo } from 'cookiejar';
import cookieParser from 'cookie-parser';
import { AppModule } from '../../backend/src/app.module';
import { GlobalExceptionFilter } from '../../backend/src/common/filters/global-exception.filter';

describe('Admin route protection', () => {
  let app: INestApplication;
  let adminToken: string;

  beforeAll(async () => {
    const moduleRef = await Test.createTestingModule({ imports: [AppModule] }).compile();
    app = moduleRef.createNestApplication();
    app.use(cookieParser());
    app.useGlobalPipes(new ValidationPipe({ whitelist: true, forbidNonWhitelisted: false, transform: true }));
    const httpAdapterHost = app.get(HttpAdapterHost);
    app.useGlobalFilters(new GlobalExceptionFilter(httpAdapterHost));
    await app.init();

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

    const login = await request(server).post('/api/v1/auth/login')
      .send({ username: 'admin', password: 'Sup3rSecret!Pass' })
      .expect(201);
    adminToken = login.body.accessToken;
  });

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

  it('GET /api/v1/admin/users without a token returns 401', async () => {
    await request(app.getHttpServer()).get('/api/v1/admin/users').expect(401);
  });

  it('GET /api/v1/admin/users with a player JWT returns 403', async () => {
    const server = app.getHttpServer();
    const agent = request.agent(server);

    // Prime CSRF cookie first.
    await agent.get('/api/v1/auth/csrf');
    const cookies: any = agent.jar.getCookies(CookieAccessInfo.All);
    const csrf = cookies.find((c: any) => c.name === 'csrf');

    // Create a player via admin endpoint
    await agent.post('/api/v1/admin/users')
      .set('Authorization', `Bearer ${adminToken}`)
      .set('X-CSRF-Token', csrf.value)
      .send({ username: 'player1', password: 'Sup3rSecret!Pass', role: 'player' })
      .expect(201);

    const playerLogin = await agent.post('/api/v1/auth/login')
      .set('X-CSRF-Token', csrf.value)
      .send({ username: 'player1', password: 'Sup3rSecret!Pass' })
      .expect(201);
    const playerToken = playerLogin.body.accessToken;

    await request(app.getHttpServer())
      .get('/api/v1/admin/users')
      .set('Authorization', `Bearer ${playerToken}`)
      .expect(403);
  });

  it('GET /api/v1/admin/users with admin JWT returns 200 and lists users', async () => {
    const res = await request(app.getHttpServer())
      .get('/api/v1/admin/users')
      .set('Authorization', `Bearer ${adminToken}`)
      .expect(200);
    expect(Array.isArray(res.body)).toBe(true);
    expect(res.body.length).toBeGreaterThanOrEqual(2);
  });

  it('DELETE /api/v1/admin/users/:id on the only admin returns 409 LAST_ADMIN', async () => {
    const list = await request(app.getHttpServer())
      .get('/api/v1/admin/users')
      .set('Authorization', `Bearer ${adminToken}`)
      .expect(200);
    const adminRow = list.body.find((u: any) => u.role === 'admin');
    expect(adminRow).toBeDefined();

    const server = app.getHttpServer();
    const agent = request.agent(server);
    await agent.get('/api/v1/auth/csrf');
    const cookies: any = agent.jar.getCookies(CookieAccessInfo.All);
    const csrf = cookies.find((c: any) => c.name === 'csrf');

    await agent.delete(`/api/v1/admin/users/${adminRow.id}`)
      .set('Authorization', `Bearer ${adminToken}`)
      .set('X-CSRF-Token', csrf.value)
      .expect(409);
  });
});