import axios, { AxiosError, AxiosInstance, AxiosRequestConfig, AxiosResponse } from 'axios'
import { message } from 'antd'

// 创建 axios 实例
const request: AxiosInstance = axios.create({
  baseURL: '/api',
  timeout: 10000,
  headers: {
    'Content-Type': 'application/json',
  },
})

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

// 响应拦截器
request.interceptors.response.use(
  (response: AxiosResponse) => {
    const { data } = response
    if (data.code !== 0 && data.code !== 200) {
      message.error(data.message || '请求失败')
      return Promise.reject(new Error(data.message))
    }
    return data
  },
  (error: AxiosError) => {
    const { response } = error
    if (response) {
      switch (response.status) {
        case 401:
          message.error('登录已过期，请重新登录')
          localStorage.removeItem('admin_token')
          window.location.href = '/login'
          break
        case 403:
          message.error('没有权限执行此操作')
          break
        case 404:
          message.error('请求的资源不存在')
          break
        case 500:
          message.error('服务器错误')
          break
        default:
          message.error(response.data?.message || '网络错误')
      }
    } else {
      message.error('网络连接失败')
    }
    return Promise.reject(error)
  }
)

export default request