import axios from "axios";
import { Message, MessageBox } from "element-ui";
import store from "@/store";
import { getToken, setToken } from "@/utils/auth";
import errorCode from "@/utils/errorCode";
import settings from "@/settings";

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: settings.baseURL, //接口地址
  // 超时
  timeout: 30000,
});
// request拦截器
service.interceptors.request.use(
  (config) => {
    // 是否需要设置 token
    const isToken = (config.headers || {}).isToken === false;
    if (getToken() && !isToken) {
      config.headers["Authorization"] = getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
    }
    // get请求映射params参数
    if (config.method === "get" && config.params) {
      let url = config.url + "?";
      for (const propName of Object.keys(config.params)) {
        const value = config.params[propName];
        var part = encodeURIComponent(propName) + "=";
        if (value !== null && typeof value !== "undefined") {
          if (typeof value === "object") {
            for (const key of Object.keys(value)) {
              let params = propName + "[" + key + "]";
              var subPart = encodeURIComponent(params) + "=";
              url += subPart + encodeURIComponent(value[key]) + "&";
            }
          } else {
            url += part + encodeURIComponent(value) + "&";
          }
        }
      }
      url = url.slice(0, -1);
      config.params = {};
      config.url = url;
    }
    return config;
  },
  (error) => {
    console.log(error);
    Promise.reject(error);
  }
);

// 响应拦截器
service.interceptors.response.use(
  (res) => {
    if (res.headers["token"]) {
      setToken(decodeURI(res.headers["token"]));
    }
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode["default"];
    if (code === 301) {
      MessageBox.confirm("登录状态已过期，需重新登录", "系统提示", {
        closeOnClickModal: false,
        showCancelButton: false,
        confirmButtonText: "重新登录",
        type: "warning",
      }).then(() => {
        store.dispatch("LogOut").then(() => {
          location.href = settings.routerBase + "/index";
        });
      });
    } else if (code === 403) {
      //无权限页面
      location.href = "/401";
    } else if (code === 500) {
      Message({
        message: msg,
        type: "error",
      });
      return Promise.reject(new Error(msg));
    } else if (![200, 201, 202, 203, 300, 402, 603].includes(code)) {
      Message({
        message: msg,
        type: "error",
      });
      return Promise.reject("error");
    } else {
      return res.data;
    }
  },
  (error) => {
    console.log("err" + error);
    let { message } = error;
    if (message == "Network Error") {
      message = "网络连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    Message({
      message: message,
      type: "error",
      duration: 5 * 1000,
    });
    return Promise.reject(error);
  }
);

export default service;