/**
 * 登录功能端到端测试
 * 
 * 功能描述：
 * - 测试用户注册、登录、GitHub OAuth等认证功能
 * - 验证密码重置流程的完整性
 * - 确保API端点的正确响应和错误处理
 * 
 * 最近修改：
 * - 2026-01-08: 文件重命名 - 修正kebab-case为snake_case命名规范 (修改者: moyin)
 * 
 * @author original
 * @version 1.0.1
 * @since 2025-01-01
 * @lastModified 2026-01-08
 */

import { Test, TestingModule } from '@nestjs/testing';
import { INestApplication } from '@nestjs/common';
import * as request from 'supertest';
import { AppModule } from '../../src/app.module';

describe('Login (e2e)', () => {
  let app: INestApplication;

  beforeEach(async () => {
    const moduleFixture: TestingModule = await Test.createTestingModule({
      imports: [AppModule],
    }).compile();

    app = moduleFixture.createNestApplication();
    await app.init();
  });

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

  describe('/auth/register (POST)', () => {
    it('should register a new user', () => {
      return request(app.getHttpServer())
        .post('/auth/register')
        .send({
          username: 'testuser' + Date.now(),
          password: 'password123',
          nickname: '测试用户',
          email: `test${Date.now()}@example.com`
        })
        .expect(201)
        .expect((res) => {
          expect(res.body.success).toBe(true);
          expect(res.body.data.user.username).toBeDefined();
          expect(res.body.data.access_token).toBeDefined();
        });
    });

    it('should return error for invalid password', () => {
      return request(app.getHttpServer())
        .post('/auth/register')
        .send({
          username: 'testuser',
          password: '123', // 密码太短
          nickname: '测试用户'
        })
        .expect(400);
    });
  });

  describe('/auth/login (POST)', () => {
    it('should login with valid credentials', async () => {
      // 先注册用户
      const username = 'logintest' + Date.now();
      await request(app.getHttpServer())
        .post('/auth/register')
        .send({
          username,
          password: 'password123',
          nickname: '登录测试用户'
        });

      // 然后登录
      return request(app.getHttpServer())
        .post('/auth/login')
        .send({
          identifier: username,
          password: 'password123'
        })
        .expect(200)
        .expect((res) => {
          expect(res.body.success).toBe(true);
          expect(res.body.data.user.username).toBe(username);
          expect(res.body.data.access_token).toBeDefined();
        });
    });

    it('should return error for invalid credentials', () => {
      return request(app.getHttpServer())
        .post('/auth/login')
        .send({
          identifier: 'nonexistent',
          password: 'wrongpassword'
        })
        .expect(200) // 业务层返回200，但success为false
        .expect((res) => {
          expect(res.body.success).toBe(false);
          expect(res.body.error_code).toBe('LOGIN_FAILED');
        });
    });
  });

  describe('/auth/github (POST)', () => {
    it('should handle GitHub OAuth login', () => {
      return request(app.getHttpServer())
        .post('/auth/github')
        .send({
          github_id: 'github' + Date.now(),
          username: 'githubuser' + Date.now(),
          nickname: 'GitHub用户',
          email: `github${Date.now()}@example.com`,
          avatar_url: 'https://avatars.githubusercontent.com/u/123456'
        })
        .expect(200)
        .expect((res) => {
          expect(res.body.success).toBe(true);
          expect(res.body.data.user.username).toBeDefined();
          expect(res.body.data.is_new_user).toBe(true);
        });
    });
  });

  describe('/auth/forgot-password (POST)', () => {
    it('should send password reset code', async () => {
      // 先注册用户
      const email = `reset${Date.now()}@example.com`;
      await request(app.getHttpServer())
        .post('/auth/register')
        .send({
          username: 'resettest' + Date.now(),
          password: 'password123',
          nickname: '重置测试用户',
          email
        });

      // 发送重置验证码
      return request(app.getHttpServer())
        .post('/auth/forgot-password')
        .send({
          identifier: email
        })
        .expect(200)
        .expect((res) => {
          expect(res.body.success).toBe(true);
          expect(res.body.data.verification_code).toMatch(/^\d{6}$/);
        });
    });
  });

  describe('/auth/reset-password (POST)', () => {
    it('should reset password with valid code', async () => {
      // 先注册用户
      const email = `resetpwd${Date.now()}@example.com`;
      await request(app.getHttpServer())
        .post('/auth/register')
        .send({
          username: 'resetpwdtest' + Date.now(),
          password: 'password123',
          nickname: '重置密码测试用户',
          email
        });

      // 获取验证码
      const codeResponse = await request(app.getHttpServer())
        .post('/auth/forgot-password')
        .send({
          identifier: email
        });

      const verificationCode = codeResponse.body.data.verification_code;

      // 重置密码
      return request(app.getHttpServer())
        .post('/auth/reset-password')
        .send({
          identifier: email,
          verification_code: verificationCode,
          new_password: 'newpassword123'
        })
        .expect(200)
        .expect((res) => {
          expect(res.body.success).toBe(true);
          expect(res.body.message).toBe('密码重置成功');
        });
    });
  });
});