import axios from 'axios'
import { ElMessage } from 'element-plus'
import router from '../router'

const api = axios.create({
  baseURL: import.meta.env.VITE_API_BASE_URL || 'http://localhost:8080/api',
  timeout: 30000,
  headers: {
    'Content-Type': 'application/json',
  },
})

api.interceptors.request.use(
  (config) => {
    const token = localStorage.getItem('token')
    if (token) {
      config.headers.Authorization = `Bearer ${token}`
    }
    return config
  },
  (error) => Promise.reject(error),
)

api.interceptors.response.use(
  (response) => response.data,
  (error) => {
    const message = error.response?.data?.error || error.message || 'Request failed'
    
    // 如果请求标记为静默失败，不显示任何消息
    const silent = error.config?.silent
    
    if (error.response?.status === 401) {
      const isLoginRequest = error.config?.url?.includes('/auth/login')
      const isRegisterRequest = error.config?.url?.includes('/auth/register')
      const isPublicRequest = error.config?.url?.includes('/settings/public') || 
        error.config?.url?.includes('/installed') ||
        error.config?.url?.includes('/products') ||
        error.config?.url?.includes('/categories') ||
        error.config?.url?.includes('/brands') ||
        error.config?.url?.includes('/banners') ||
        error.config?.url?.includes('/articles') ||
        error.config?.url?.includes('/lotteries') ||
        error.config?.url?.includes('/cart')

      if (isLoginRequest || isRegisterRequest) {
        if (!silent) ElMessage.error(message)
      } else if (!isPublicRequest && !silent) {
        localStorage.removeItem('token')
        localStorage.removeItem('user')
        ElMessage.error('请先登录')
        router.push('/login')
      }
      // 公开接口或静默请求的 401 错误不显示消息也不跳转
    } else if (!silent) {
      ElMessage.error(message)
    }
    return Promise.reject(error)
  },
)

// 扩展 axios 类型以支持 silent 选项
declare module 'axios' {
  interface AxiosRequestConfig {
    silent?: boolean
  }
}

export default api