import auth from "@/plugins/auth";
import router, { constantRoutes, dynamicRoutes } from "@/router";
import { getRouters } from "@/api/menu";
import Layout from "@/layout/index";
import ParentView from "@/components/ParentView";
import InnerLink from "@/layout/components/InnerLink";

const permission = {
  state: {
    routes: [],
    addRoutes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: [],
  },
  mutations: {
    SET_ROUTES: (state, routes) => {
      state.addRoutes = routes;
      state.routes = constantRoutes.concat(routes);
    },
    SET_DEFAULT_ROUTES: (state, routes) => {
      state.defaultRoutes = constantRoutes.concat(routes);
    },
    SET_TOPBAR_ROUTES: (state, routes) => {
      state.topbarRouters = routes;
    },
    SET_SIDEBAR_ROUTERS: (state, routes) => {
      state.sidebarRouters = routes;
    },
  },
  actions: {
    // 生成路由
    GenerateRoutes({ commit }) {
      return new Promise((resolve) => {
        // 向后端请求路由数据
        getRouters().then((res) => {
          const sdata = JSON.parse(JSON.stringify(res.data));
          const rdata = JSON.parse(JSON.stringify(res.data));
          const sidebarRoutes = filterAsyncRouter(sdata);
          const rewriteRoutes = filterAsyncRouter(rdata, false, true);
          const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
          rewriteRoutes.push({ path: "*", redirect: "/404", hidden: true });

          router.addRoutes(asyncRoutes);

          // 空压热回收
          const result2 = sidebarRoutes.find(
            (item) => item.name === "HeatRecoverySys"
          );
          if (result2) {
            // 定义要添加的多个路由对象数组
            const additionalRoutes2 = [
              {
                path: "/monitorCenter",
                name: "monitorCenter",
                hidden: true,
                component: () =>
                  import("@/views/heatRecoverySys/deviceMonitor/monitorCenter"),
                meta: { title: "系统监测", icon: "screen" },
              },
              // 可以继续添加更多路由对象
            ];
            // 循环添加额外的路由对象到各路由数组
            additionalRoutes2.forEach((route) => {
              sidebarRoutes.push(route);
              rewriteRoutes.push(route);
              asyncRoutes.push(route);
            });
          } else {
            // console.log("不满足条件");
          }

          commit("SET_ROUTES", rewriteRoutes);
          commit("SET_SIDEBAR_ROUTERS", constantRoutes.concat(sidebarRoutes));
          commit("SET_DEFAULT_ROUTES", sidebarRoutes);
          commit("SET_TOPBAR_ROUTES", sidebarRoutes);
          console.log("返回的动态路由", sidebarRoutes);
          console.log("静态的动态路由", constantRoutes);
          resolve(rewriteRoutes);
        });
      });
    },
  },
};
//判断是否返回特定的菜单，再添加大屏路由的动态菜单
function checkRouteArray(routes, ...paths) {
  // 检查传入路径参数的数量，用于确定要检查的层级
  const level = paths.length;
  function checkLevel(route, currentLevel) {
    // 如果当前层级的路径参数存在且当前路由的 path 包含该路径
    if (
      paths[currentLevel] &&
      route.path &&
      route.path.includes(paths[currentLevel])
    ) {
      // 如果已经到达指定的最后一层级，返回 true
      if (currentLevel === level - 1) {
        return true;
      }
      // 如果还有下一层级且当前路由有 children 属性
      if (route.children) {
        for (let i = 0; i < route.children.length; i++) {
          const childRoute = route.children[i];
          // 递归检查下一层级
          if (checkLevel(childRoute, currentLevel + 1)) {
            return true;
          }
        }
      }
    }
    return false;
  }

  // 遍历路由数组，对每个一级路由调用 checkLevel 函数开始检查
  for (let i = 0; i < routes.length; i++) {
    const route = routes[i];
    if (checkLevel(route, 0)) {
      return true;
    }
  }
  return false;
}

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
  return asyncRouterMap.filter((route) => {
    if (type && route.children) {
      route.children = filterChildren(route.children);
    }
    if (route.component) {
      // Layout ParentView 组件特殊处理
      if (route.component === "Layout") {
        route.component = Layout;
      } else if (route.component === "ParentView") {
        route.component = ParentView;
      } else if (route.component === "InnerLink") {
        route.component = InnerLink;
      } else {
        route.component = loadView(route.component);
      }
    }
    if (route.children != null && route.children && route.children.length) {
      route.children = filterAsyncRouter(route.children, route, type);
    } else {
      delete route["children"];
      delete route["redirect"];
    }
    return true;
  });
}

function filterChildren(childrenMap, lastRouter = false) {
  var children = [];
  childrenMap.forEach((el, index) => {
    if (el.children && el.children.length) {
      if (el.component === "ParentView" && !lastRouter) {
        el.children.forEach((c) => {
          c.path = el.path + "/" + c.path;
          if (c.children && c.children.length) {
            children = children.concat(filterChildren(c.children, c));
            return;
          }
          children.push(c);
        });
        return;
      }
    }
    if (lastRouter) {
      el.path = lastRouter.path + "/" + el.path;
      if (el.children && el.children.length) {
        children = children.concat(filterChildren(el.children, el));
        return;
      }
    }
    children = children.concat(el);
  });
  return children;
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes(routes) {
  const res = [];
  routes.forEach((route) => {
    if (route.permissions) {
      if (auth.hasPermiOr(route.permissions)) {
        res.push(route);
      }
    } else if (route.roles) {
      if (auth.hasRoleOr(route.roles)) {
        res.push(route);
      }
    }
  });
  return res;
}

export const loadView = (view) => {
  if (process.env.NODE_ENV === "development") {
    return (resolve) => require([`@/views/${view}`], resolve);
  } else {
    // 使用 import 实现生产环境的路由懒加载
    return () => import(`@/views/${view}`);
  }
};

export default permission;