import axios from 'axios'
import { resReject, resResolve, reqReject, reqResolve } from './interceptors'
import { getCurrentEndpoint, getAvailableEndpoints } from '../api-config'

export function createAxios(options = {}) {
  const defaultOptions = {
    timeout: 12000,
  }
  const service = axios.create({
    ...defaultOptions,
    ...options,
  })
  service.interceptors.request.use(reqResolve, reqReject)
  service.interceptors.response.use(resResolve, resReject)
  return service
}

// 创建支持多接口的请求实例
export function createMultiEndpointRequest() {
  let instances = null

  // 延迟创建axios实例
  function ensureInstances() {
    if (!instances) {
      instances = {}
      const endpoints = getAvailableEndpoints()

      console.log('创建axios实例，接口列表:', endpoints)

      endpoints.forEach((endpoint) => {
        console.log(`创建实例 ${endpoint.key}:`, endpoint.baseURL)
        instances[endpoint.key] = createAxios({
          baseURL: endpoint.baseURL,
          timeout: endpoint.timeout,
        })
      })
    }
    return instances
  }

  return {
    // 使用当前选中的接口发送请求
    async request(config) {
      const instances = ensureInstances()
      const currentEndpoint = getCurrentEndpoint()

      console.log('当前接口配置:', currentEndpoint)
      console.log('可用实例:', Object.keys(instances))

      const instance = instances[currentEndpoint.key]

      if (!instance) {
        throw new Error(`接口实例不存在: ${currentEndpoint.key}`)
      }

      console.log(`使用接口: ${currentEndpoint.name} (${currentEndpoint.baseURL})`)
      console.log('请求配置:', config)

      return await instance(config)
    },

    // 获取当前接口实例
    getCurrentInstance() {
      const instances = ensureInstances()
      const currentEndpoint = getCurrentEndpoint()
      return instances[currentEndpoint.key]
    },

    // 获取所有接口实例
    getAllInstances() {
      return ensureInstances()
    },
  }
}

// export const request = createAxios({
//   baseURL: import.meta.env.VITE_BASE_API,
// })

// 支持多接口的请求实例
export const multiRequest = createMultiEndpointRequest()

// 创建自动适配多接口的request实例
const multiEndpointInstance = createMultiEndpointRequest()

// 创建支持axios方法的request实例
export const request = {
  // 基础请求方法
  request: (config) => multiEndpointInstance.request(config),

  // 自动适配axios方法
  get: (url, config = {}) => multiEndpointInstance.request({ method: 'get', url, ...config }),
  post: (url, data, config = {}) =>
    multiEndpointInstance.request({ method: 'post', url, data, ...config }),
  put: (url, data, config = {}) =>
    multiEndpointInstance.request({ method: 'put', url, data, ...config }),
  delete: (url, config = {}) => multiEndpointInstance.request({ method: 'delete', url, ...config }),
  patch: (url, data, config = {}) =>
    multiEndpointInstance.request({ method: 'patch', url, data, ...config }),
  head: (url, config = {}) => multiEndpointInstance.request({ method: 'head', url, ...config }),
  options: (url, config = {}) =>
    multiEndpointInstance.request({ method: 'options', url, ...config }),

  // 获取当前接口实例（用于直接访问axios实例）
  getCurrentInstance: () => multiEndpointInstance.getCurrentInstance(),
  getAllInstances: () => multiEndpointInstance.getAllInstances(),
}