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

// 创建axios实例
const request = axios.create({
  baseURL: '/api/v1',
  timeout: 30000,
  headers: {
    'Content-Type': 'application/json'
  }
})

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

// 响应拦截器
request.interceptors.response.use(
  response => {
    const res = response.data
    if (res.code && res.code !== 200) {
      ElMessage.error(res.message || '请求失败')
      return Promise.reject(new Error(res.message || '请求失败'))
    }
    return res
  },
  error => {
    if (error.response) {
      switch (error.response.status) {
        case 401:
          ElMessage.error('登录已过期，请重新登录')
          localStorage.removeItem('token')
          router.push('/login')
          break
        case 403:
          ElMessage.error('没有权限访问')
          break
        case 404:
          ElMessage.error('请求资源不存在')
          break
        case 500:
          ElMessage.error('服务器错误')
          break
        default:
          ElMessage.error(error.response.data?.detail || '请求失败')
      }
    } else {
      ElMessage.error('网络错误，请检查网络连接')
    }
    return Promise.reject(error)
  }
)

export default request