// import Vue from 'vue'
import router from "./router";
import store from "./store";
import { Message } from "element-ui";
import NProgress from "nprogress"; // progress bar
import "nprogress/nprogress.css"; // progress bar style
import { getToken } from "@/utils/auth"; // get token from cookie
import getPageTitle from "@/utils/get-page-title";

NProgress.configure({ showSpinner: false }); // NProgress Configuration

const whiteList = ["/login", "/noPermission"]; // no redirect whitelist

let isOpen = false;

router.onError(error => {
  if (error instanceof Error) {
    const isChunkLoadFailed = error.name.indexOf("chunk");
    const targetPath = router.history.pending.fullPath;
    if (isChunkLoadFailed && !isOpen) {
      isOpen = true;
      //  (router.app.$confirm)
      // router.push({ path: "/403", query: { path: targetPath } })
      router.app
        .$confirm("网站有更新请点击确定刷新页面?", "更新提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        })
        .then(() => {
          // router.replace(targetPath);
          location.hash = targetPath;
          window.location.reload();
        })
        .catch(() => {
          return;
        });
    }
  }
});

function getFirstMenu(routes) {
  // console.log(routes)
  // let firstMenu = null
  // routes.forEach(item => {
  //   if(!firstMenu && item.children?.length > 0) {
  //     firstMenu = pathErgodic(item)
  //   }
  // })
  // console.log('firstMenu',firstMenu)
  return routes[0].redirect;
}

function pathErgodic(item) {
  let firstMenu = null;
  item.children.forEach(i => {
    if (!firstMenu && i.children?.length > 0) {
      firstMenu = pathErgodic(i);
    } else {
      if (!firstMenu && checkPathUrl(i.path)) {
        firstMenu = i.path;
      } else {
        if (!firstMenu && !i.hidden) {
          firstMenu = item.path + "/" + i.path;
        }
      }
    }
  });
  return firstMenu;
}

// 判断path有没有带/,并且是第一个位置
function checkPathUrl(path) {
  return path.indexOf("/") === 0 ? true : false;
}

router.beforeEach(async (to, from, next) => {
  // from.query = to.query
  // start progress bar
  NProgress.start();
  // set page title
  // document.title = getPageTitle(to.meta.title)
  document.title = getPageTitle();
  // determine whether the user has logged in
  const hasToken = getToken();
  if (hasToken) {
    if (to.path === "/login") {
      // 如果有tonken直接跳转到首页
      next({ path: "/" });

      NProgress.done();
    } else {
      const hasGetUserInfo = store.getters.phone;
      // 有名字 说明有用户信息 跳走
      if (hasGetUserInfo) {
        // const accessRoutes = await store.dispatch('permission/generateRoutes')

        // 动态添加可访问的路由
        // router.addRoutes(accessRoutes)
        next();
      } else {
        try {
          // 异步获取用户信息
          await store.dispatch("user/getInfo");
          // 请求接口 生成可访问路由
          const accessRoutes = await store.dispatch(
            "permission/generateRoutes"
          );
          // console.log(accessRoutes, 'accessRoutes')
          const isMenu = accessRoutes && accessRoutes.length > 0 ? true : false;

          accessRoutes.push({ path: "*", redirect: "/404", hidden: true });

          console.log(accessRoutes, "accessRoutes");
          // 动态添加可访问的路由
          router.addRoutes(accessRoutes);
          // 确保addroutes完整的hack方法
          localStorage.removeItem("firstMenuUrl");
          // 设置replace:true，这样导航就不会留下历史记录。
          let firstMenu = getFirstMenu(accessRoutes);
          localStorage.setItem("firstMenuUrl", firstMenu);
          // console.log(firstMenu, 'firstMenu', isMenu)
          // 判断是否有菜单
          if (isMenu) {
            if (to.path == "/workbench") {
              next({ path: firstMenu, replace: true });
            } else {
              next({ ...to, replace: true });
            }
          } else {
            next({ path: "/noPermission", replace: true });
          }
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch("user/resetToken");
          if (error.msg) {
            Message.error(error.msg);
          }
          next(`/login`);
          NProgress.done();
        }
      }
    }
  } else {
    /* has no token*/
    console.log(to.path, "to.path");
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next();
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login`);
      NProgress.done();
    }
  }
});

router.afterEach(() => {
  // finish progress bar
  NProgress.done();
});