import axios from 'axios'
import sso from './sso'
import router from '@src/router/index'
import type { AxiosInstance, CreateAxiosDefaults, AxiosRequestConfig } from 'axios'

const config = {
  timeout: 60000,
}

const invalidCode = 1000

class Request {
  private instance: AxiosInstance

  constructor(config: CreateAxiosDefaults) {
    this.instance = axios.create(config)

    this.instance.interceptors.request.use(function(config) {
			if (!config.headers.token) {
				const userInfo = sso.getUserInfo()
				config.headers.token = userInfo.token
			}

      return config
    }, function(error) {
      return Promise.reject(error)
    })

    this.instance.interceptors.response.use(function(response) {
      const { data } = response
      const { code } = data

      // 登陆过期 || 未登陆
      if (code === invalidCode) {
        sso.clearUserInfo()

        const {pathname,search} = location
        if (pathname!=='/login') {
          router.navigate('/login?redirectUrl='+ encodeURIComponent(pathname+search) )
        }
        
        return Promise.reject(data)
      }
      return data
    }, function(error) {
      return Promise.reject(error)
    })
  }

  get<T>(url: string, config?: AxiosRequestConfig): Promise<ApiResponse<T>> {
    return this.instance.get(url, config)
  }

  getBlob<T>(url: string, config?: AxiosRequestConfig): Promise<T> {
    return this.instance.get(url, config)
  }

  post<T>(url: string, data?: unknown, config?: AxiosRequestConfig): Promise<ApiResponse<T>> {
    return this.instance.post(url, data, config)
  }
}


export default new Request(config)