import axios from 'axios'

const request = axios.create({
  baseURL: '/api',
  timeout: 300000
})

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

request.interceptors.response.use(
  response => response.data,
  error => {
    const status = error.response?.status
    
    // 只有 401/403 才清理 token 并跳转登录页
    if (status === 401 || status === 403) {
      localStorage.removeItem('token')
      localStorage.removeItem('username')
      localStorage.removeItem('userId')
      localStorage.removeItem('nickname')
      localStorage.removeItem('avatar')
      localStorage.removeItem('storageUsed')
      localStorage.removeItem('storageLimit')
      
      if (window.location.pathname !== '/login') {
        window.location.href = '/login'
      }
    }
    
    // 其他错误（404、500、网络错误等）正常 reject，不跳转
    return Promise.reject(error)
  }
)

export default request