//路由前端原则可以不写，但是需要在recorder中记录，防止以后忘记
//不用新增父路由的文件，父路由全部由parent/parent.vue来支撑
import { createRouter, createWebHashHistory } from "vue-router";
import store from "../store";

//写入初始必须有的路由
//或者隐藏式路由，不会表现在菜单上，但是需要存在的路由
const routes = [
  {
    path: "/login",
    name: "login",
    show: true,
    component: () => import("../page/login/index.vue"),
  },
  {
    path: "/register",
    name: "register",
    show: true,
    component: () => import("../page/register/index.vue"),
  },
  {
    path: "/password",
    name: "password",
    show: true,
    component: () => import("../page/password/index.vue"),
  },
  {
    path: "/",
    name: "index",
    component: () => import("../page/welcom.vue"),
  },
  {
    path: "/404",
    show: true,
    component: () => import("../page/404.vue"),
  },
];

//重新创建router
function newRouterFunc() {
  return createRouter({
    history: createWebHashHistory(),
    routes,
  });
}

const router = newRouterFunc();

function inWhiteList(toPath) {
  //配置白名单
  const whiteList = store.state.whiteList;
  const path = whiteList.find((value) => {
    // 使用正则匹配
    const reg = new RegExp("^" + value);
    return reg.test(toPath);
  });
  return !!path;
}

router.beforeEach((to, from, next) => {
  const userInfo = store.state.userInfo;
  //已登录不可跳转登陆页 || to.path == "/" 去除首页跳转判断
  if (userInfo && (to.path == "/login" )) {
    return next({
      path: "/",
    })
  }

  // 检查to.path是否存在于免登陆白名单
  if (inWhiteList(to.path)) {
    return next();
  } else {
    // 判断是否已经登录，未登录则重定向到首页或其他页面（通过query传参记录原来的路径）
    // 根据配置判断是否跳转第三方登录，跳转第三方登录则不跳login
    // axios封装中也需要对是否登录过期进行判断，如果登录过期，则跳转登录页，具体跳转地址根据配置来·
    if (!userInfo) {
      return next({
        path: "/login",
      });
    } else {
    }
  }

  //判读是否匹配，否则跳转404
  if (to.matched.length !== 0) {
    return next();
  } else {
    return next({
      path: "/404",
    });
  }
});

// 在路由完成初始导航时调用，如果有异步操作放置到这里
// 请求相应的角色和菜单
// router.onReady(() => {
//   generateRoutes()
// })
function addRoute(router, routers) {
  routers.forEach((e) => {
    if (e.path[0] == "/") {
      router.addRoute(e);
      if (e.children && e.children.length) {
        addRoute(router, e.children);
      }
    }
  });
}

export function generateRoutes() {
  const _asyncRoutes = store.state.route;

  if (_asyncRoutes) {
    //动态添加路由

    addRoute(router, _asyncRoutes);
  }

  router.addRoute({
    path: "/:pathMatch(.*)",
    redirect: "/404",
  });
}

//新创建一个router替代之前的router，并把matcher方法替换成新的router的matcher
export function resetRouter() {
  const newRouter = newRouterFunc();
  router.matcher = newRouter.matcher;
}

export default router;