import axios from "axios";
import {
  message as antdMessage
} from "@hwork/ant-design-vue";
import store from "../store";
import qs from 'qs';
import router from '@/route/index'

class Request {

  constructor(config) {
    this.config = config || {
      timeout: 8000,
      withCredentials: true,
      baseURL: process.env.VUE_APP_API_BASE_URL,
      headers: {
        "Content-Type": "application/json; charset=utf-8"
      }
    };
  }

  interceptors(instance) {

    /// 请求拦截
    instance.interceptors.request.use(
      config => {
        // 确保 headers 存在
        config.headers = config.headers || {};
        /// 权鉴相关
        const tokenKey = localStorage.getItem("token_key");
        const token = localStorage.getItem("token")
        if (token) config.headers["Authorization"] = "Bearer " + token;
        if (tokenKey) config.headers["Authorization-key"] = tokenKey;
        config.headers["Platform"] = "PC";
        config.cancelToken = new axios.CancelToken(async cancel => {
          await store.dispatch("app/execCancelToken", {
            cancelToken: cancel
          });
        });

        /// 格式化 []
        if (config.method === 'delete') {
          config.paramsSerializer = (params) => {
            return qs.stringify(params, {
              arrayFormat: 'repeat'
            })
          }
        }
        // 如果是文件上传，设置Content-Type为multipart/form-data
        if (config.data instanceof FormData) {
          delete config.headers["Content-Type"]; // 让 Axios 设置正确的 Content-Type
          config.headers["Content-Type"] = "multipart/form-data";
        } else {
          config.headers["Content-Type"] = "application/json; charset=utf-8";
        }
        // config.cancelToken = new axios.CancelToken(async cancel => {
        //   await store.dispatch("app/execCancelToken", {
        //     cancelToken: cancel
        //   });
        // });
        return config;
      },
      error => {
        return Promise.reject(error);
      }
    );

    /// 响应拦截
    instance.interceptors.response.use(
      response => {
        if (response.data.code === 502) {
          antdMessage.error("登录过期").then(() => router.push("/login"))
        }
        return response.data;
      },
      error => {
        console.log("响应拦截error", error)
        this.errorHandle(error);
        return Promise.reject(error);
      }
    );
  }

  errorHandle = function(error) {
    var response = error.response
    var message = error.message
    if (response) {
      if (response.status === 404) antdMessage.error("接口不存在");
    } else {
      if (message === "Network Error") antdMessage.error("连接异常")

      if (message.includes("timeout")) antdMessage.error("请求超时");

      if (message.includes("Request failed with status code")) antdMessage.error("接口异常");
    }
  }

  request(options) {
    const instance = axios.create();
    const requestOptions = Object.assign({}, this.config, options);
    this.interceptors(instance);
    return instance(requestOptions);
  }
}

const request = new Request();
export default new Request();