import axios from "axios";
import {
  ElNotification,
  ElMessageBox,
  ElMessage,
  ElLoading,
} from "element-plus";
import { getToken, removeToken } from "@/utils/auth.js";
import { tansParams } from "@/utils/function.js";
import local from "@/utils/local.js";
import { saveAs } from "file-saver";
import Loading from "@/pages/all/components/loadingComponent/index.js";
import Loading2 from "@/pages/all/components/loadingComponent1/index.js";
// import useUserStore from '@/store/modules/user'

let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = { show: false };

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建axios实例

// console.log("import.meta.env.VITE_API_URL",import.meta.env.VITE_API_URL);

const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_API_URL,
  // 超时
  timeout: 60000,
});

// request拦截器
service.interceptors.request.use(
  (config) => {
    if (config.method === "get" && config.params) {
      let url = config.url + "?" + tansParams(config.params);
      url = url.slice(0, -1);
      config.params = {};
      config.url = url;
    }
    if (config.method === "post" || config.method === "put") {
      const requestObj = {
        url: config.url,
        data:
          typeof config.data === "object"
            ? JSON.stringify(config.data)
            : config.data,
        time: new Date().getTime(),
      };
      const requestSize = Object.keys(JSON.stringify(requestObj)).length; // 请求数据大小
      const limitSize = 5 * 1024 * 1024; // 限制存放数据5M
      if (requestSize >= limitSize) {
        console.warn(
          `[${config.url}]: ` +
            "请求数据大小超出允许的5M限制，无法进行防重复提交验证。",
        );
        return config;
      }
      const sessionObj = local.session.getJSON("sessionObj");
      local.session.setJSON("sessionObj", requestObj);

      // if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
      //   local.session.setJSON('sessionObj', requestObj)
      // } else {
      //   const s_url = sessionObj.url;                // 请求地址
      //   const s_data = sessionObj.data;              // 请求数据
      //   const s_time = sessionObj.time;              // 请求时间
      //   const interval = 1000;                       // 间隔时间(ms)，小于此时间视为重复提交
      //   // //console.log(s_data, requestObj.data, requestObj.time, s_time, s_url, requestObj.url);
      //   if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
      //     const message = '数据正在处理，请勿重复提交';
      //     console.warn(`[${s_url}]: ` + message)
      //     return Promise.reject(new Error(message))
      //   } else {
      //     local.session.setJSON('sessionObj', requestObj)
      //   }
      // }
    }
    return config;
  },
  (error) => {
    //console.log(error)
    Promise.reject(error);
  },
);

// 响应拦截器
service.interceptors.response.use(
  (res) => {
    Loading.hide();
    Loading2.hide();
    // 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 = res.data.msg || "未知错误";
    // 二进制数据则直接返回
    if (
      res.request.responseType === "blob" ||
      res.request.responseType === "arraybuffer"
    ) {
      return res.data;
    }
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true;
        removeToken(); //删除token
        ElMessageBox.confirm(
          "登录状态已过期，您可以继续留在该页面，或者重新登录",
          "系统提示",
          {
            confirmButtonText: "重新登录",
            cancelButtonText: "取消",
            type: "warning",
          },
        )
          .then(() => {
            isRelogin.show = false;
            // useUserStore().logOut().then(() => {
            location.href = "/";
            // })
          })
          .catch(() => {
            isRelogin.show = false;
          });
      }
      return Promise.reject("无效的会话，或者会话已过期，请重新登录。");
    } else if (code === 500) {
      ElMessage({ message: msg, type: "error" });
      return Promise.reject(new Error(msg));
    } else if (code === 601) {
      ElMessage({ message: msg, type: "warning" });
      return Promise.reject(new Error(msg));
    } else if (code !== 200) {
      ElNotification.error({ title: msg });
      return Promise.reject("error");
    } else {
      return Promise.resolve(res.data);
    }
  },
  (error) => {
    //console.log('err' + error)
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } 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";
    }
    ElMessage({ message: message, type: "error", duration: 5 * 1000 });
    return Promise.reject(error);
  },
);

// 通用下载方法
export function download(url, params, filename, config) {
  downloadLoadingInstance = ElLoading.service({
    text: "正在下载数据，请稍候",
    background: "rgba(0, 0, 0, 0.7)",
  });
  return service
    .post(url, params, {
      transformRequest: [
        (params) => {
          return tansParams(params);
        },
      ],
      headers: { "Content-Type": "application/x-www-form-urlencoded" },
      responseType: "blob",
      ...config,
    })
    .then(async (data) => {
      if (data.type !== "application/json") {
        const blob = new Blob([data]);
        saveAs(blob, filename);
      } else {
        const resText = await data.text();
        const rspObj = JSON.parse(resText);
        const errMsg = rspObj.msg || "下载文件失败，请联系管理员！";
        ElMessage.error(errMsg);
      }
      downloadLoadingInstance.close();
    })
    .catch((r) => {
      console.error(r);
      ElMessage.error("下载文件出现错误，请联系管理员！");
      downloadLoadingInstance.close();
    });
}

export default service;
