import axios from 'axios'

// 婚礼纪业务 API：统一走 /api 代理到 Go 后端 (:8080)
// 后端返回约定：{ code: 200, data, msg } 视为成功
const service = axios.create({
  baseURL: '/api',
  timeout: 15000,
})

// 请求拦截：受保护接口自动携带后台 token
service.interceptors.request.use((config) => {
  const token = localStorage.getItem('admin_token')
  if (token) {
    config.headers = config.headers || {}
    config.headers['Authorization'] = `Bearer ${token}`
  }
  return config
})

// 响应拦截：统一把 { code: 200, data } 形态解包
service.interceptors.response.use(
  (response) => {
    const body = response.data
    // 后端标准包：{ code, data/msg/error }
    if (body && typeof body === 'object' && 'code' in body) {
      if (body.code === 200) return body
      return Promise.reject(new Error(body.msg || body.error || '请求失败'))
    }
    // 没有 code 包裹（如 401 {error}）视为失败
    if (body && typeof body === 'object' && 'error' in body) {
      return Promise.reject(new Error(body.error))
    }
    return body
  },
  (error) => {
    const status = error?.response?.status
    if (status === 401) {
      localStorage.removeItem('admin_token')
      localStorage.removeItem('admin_user')
    }
    return Promise.reject(error)
  }
)

export function getConfig() {
  return service.get('/config')
}

export function getAlbumImages() {
  return service.get('/album')
}

export function saveConfig(payload) {
  return service.post('/config', payload)
}

export function getUploadConfig() {
  return service.get('/upload/config')
}

export function saveUploadConfig(payload) {
  return service.post('/upload/config', payload)
}

export function uploadImage(file) {
  const form = new FormData()
  form.append('file', file)
  return service.post('/upload', form, {
    headers: { 'Content-Type': 'multipart/form-data' },
  })
}

export function submitRsvp(form) {
  return service.post('/rsvp', form)
}

export function getRsvpList() {
  return service.get('/rsvp/list')
}

export function adminLogin(credentials) {
  return service.post('/admin/login', credentials)
}

export default service