import axios, { type AxiosResponse, type InternalAxiosRequestConfig } from 'axios'
import { ElMessage } from 'element-plus'
import router from '@/router'

// 创建axios实例
const service = axios.create({
  timeout: 30000,
})

// 请求拦截器
service.interceptors.request.use(
  (config: InternalAxiosRequestConfig) => {
    // 根据当前路由判断是否为Mock模式
    const isMock = window.location.pathname.startsWith('/mock')
    config.baseURL = isMock ? '/mock-api' : '/api'

    // 自动添加Token
    const token = localStorage.getItem('token')
    if (token) {
      config.headers.Authorization = `Bearer ${token}`
    }
    return config
  },
  (error) => Promise.reject(error)
)

// 响应拦截器
service.interceptors.response.use(
  (response: AxiosResponse) => {
    const res = response.data
    if (res.code === 0) {
      return res
    }

    // Token无效/过期
    if (res.code === 40101) {
      localStorage.removeItem('token')
      const isMock = window.location.pathname.startsWith('/mock')
      router.push(isMock ? '/mock/login' : '/login')
      ElMessage.warning('登录已过期')
      return Promise.reject(new Error(res.message))
    }

    // 其他业务错误
    const errorMessages: Record<number, string> = {
      40001: res.message || '参数校验失败',
      40002: res.message || '资源不存在',
      40003: res.message || '资源已存在',
      50001: '服务器错误',
      50002: '采集服务未响应',
    }
    const msg = errorMessages[res.code] || res.message || '请求失败'
    ElMessage.error(msg)
    return Promise.reject(new Error(msg))
  },
  (error) => {
    if (error.response) {
      ElMessage.error('网络异常')
    } else if (error.code === 'ECONNABORTED') {
      ElMessage.error('请求超时')
    }
    return Promise.reject(error)
  }
)

export default service