import axios from 'axios';

// 简单的 Mock 拦截器
const mockData = {
  '/api/user': { id: 1, name: '测试用户', email: 'test@example.com' },
  '/api/list': [{ id: 1, title: '项目1' }, { id: 2, title: '项目2' }],
};

// 模拟延迟
const delay = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

// 设置 Mock 拦截器
export function setupMock() {
  axios.interceptors.request.use(async (config) => {
    const url = config.baseURL + config.url;

    // 模拟 404 错误
    if (config.url?.includes('/not-found')) {
      await delay(300);
      const error = new Error('Request failed with status code 404');
      error.response = { status: 404, data: { message: 'Not Found' } };
      error.config = config;
      return Promise.reject(error);
    }

    // 模拟 500 服务器错误
    if (config.url?.includes('/server-error')) {
      await delay(300);
      const error = new Error('Request failed with status code 500');
      error.response = { status: 500, data: { message: 'Internal Server Error' } };
      error.config = config;
      return Promise.reject(error);
    }

    // 模拟超时错误
    if (config.url?.includes('/timeout')) {
      await delay(6000); // 超过 timeout 设置
      return config;
    }

    // 模拟网络错误
    if (config.url?.includes('/network-error')) {
      await delay(300);
      const error = new Error('Network Error');
      error.config = config;
      return Promise.reject(error);
    }

    // 正常 Mock 响应
    const mockKey = Object.keys(mockData).find((key) => url.includes(key));
    if (mockKey) {
      await delay(300);
      config.adapter = () => {
        return Promise.resolve({
          data: mockData[mockKey],
          status: 200,
          statusText: 'OK',
          headers: {},
          config,
        });
      };
    }

    return config;
  });

  console.log('[Mock] Mock 拦截器已启用');
}