import { defineStore } from 'pinia';
import router, { constantRoutes, dynamicRoutes } from '@/router';
import store from '@/store';
import { getRouters } from '@/api/menu';
import auth from '@/plugins/auth';
import { RouteRecordRaw } from 'vue-router';
import Layout from '@/layout/index.vue';
import ParentView from '@/components/ParentView/index.vue';
import InnerLink from '@/layout/components/InnerLink/index.vue';
import { ref, computed } from 'vue';
import { createCustomNameComponent } from '@/utils/createCustomNameComponent';
import { isHttp } from '@/utils/validate';
import { useUserStore } from '@/store/modules/user';

// 匹配views里面所有的.vue文件
const modules = import.meta.glob('./../../views/**/*.vue');
/** 系统分类选项（顺序：首页、执法监督码、后台管理） */
export interface SystemCodeOption {
  label: string;
  value: string;
  icon: string;
  /** 当设置了 iframeUrl 时，切换到该选项会以全屏 iframe 展示，而非加载菜单路由 */
  iframeUrl?: string;
  /** 当设置了 fullscreenRoute 时，切换到该选项会以全屏 Vue 路由展示 */
  fullscreenRoute?: string;
  /** 切换到该系统后默认跳转的路由路径 */
  defaultRoute?: string;
}
/** 404 兜底路由名称，方便动态移除和重新添加 */
export const CATCH_ALL_ROUTE_NAME = 'CatchAll404';
//http://10.132.108.3:85/loginByUserId
export const systemCodeOptions: SystemCodeOption[] = [
  { label: '首页', value: 'planindex', icon: 'HomeFilled', fullscreenRoute: '/home' },
  { label: '统计分析', value: 'supervisionCode', icon: 'Document', defaultRoute: '/statistics/administrative/enterprise-enforcement' },
  { label: '后台管理', value: 'authService', icon: 'Setting', defaultRoute: '/system-setting/menu' }
];

export const usePermissionStore = defineStore('permission', () => {
  /**
   * 根据基础 iframeUrl 动态拼接登录凭据参数
   */
  const buildIframeUrl = (baseUrl: string): string => {
    if (!baseUrl) return '';
    // 当配置了 Same-origin 占位符时，替换为浏览器当前的 origin（协议+主机+端口）
    let resolvedUrl = baseUrl;
    if (baseUrl.includes('Same-origin')) {
      resolvedUrl = baseUrl.replace('Same-origin', window.location.origin);
    }
    const userStore = useUserStore();
    const params = new URLSearchParams();
    if (userStore.v1SystemCredential) {
      params.set('v1_system_credential', userStore.v1SystemCredential);
    }
    const separator = resolvedUrl.includes('?') ? '&' : '?';
    return resolvedUrl + separator + params.toString();
  };

  const routes = ref<RouteRecordRaw[]>([]);
  const addRoutes = ref<RouteRecordRaw[]>([]);
  const defaultRoutes = ref<RouteRecordRaw[]>([]);
  const topbarRouters = ref<RouteRecordRaw[]>([]);
  const sidebarRouters = ref<RouteRecordRaw[]>([]);
  /** 缓存后端返回的全量路由原始数据（未经组件转换） */
  const allRouteDataCache = ref<any[]>([]);
  /** sessionStorage key */
  const SYSTEM_CODE_KEY = 'currentSystemCode';
  /** 当前选中的系统编码（从 sessionStorage 恢复，默认 planindex） */
  const savedCode = sessionStorage.getItem(SYSTEM_CODE_KEY) || 'planindex';
  const savedOption = systemCodeOptions.find((o) => o.value === savedCode);
  const currentSystemCode = ref<string>(savedCode);
  /** 当前是否处于 iframe 全屏模式 */
  const iframeMode = ref<boolean>(!!(savedOption?.iframeUrl || savedOption?.fullscreenRoute));
  /** 当前 iframe 地址 */
  const iframeUrl = ref<string>(savedOption?.iframeUrl ? buildIframeUrl(savedOption.iframeUrl) : '');
  /** 当前全屏 Vue 路由地址 */
  const fullscreenRoute = ref<string>(savedOption?.fullscreenRoute || '');

  const getRoutes = (): RouteRecordRaw[] => {
    return routes.value as RouteRecordRaw[];
  };
  const getDefaultRoutes = (): RouteRecordRaw[] => {
    return defaultRoutes.value as RouteRecordRaw[];
  };
  const getSidebarRoutes = (): RouteRecordRaw[] => {
    return sidebarRouters.value as RouteRecordRaw[];
  };
  const getTopbarRoutes = (): RouteRecordRaw[] => {
    return topbarRouters.value as RouteRecordRaw[];
  };

  const setRoutes = (newRoutes: RouteRecordRaw[]): void => {
    addRoutes.value = newRoutes;
    routes.value = constantRoutes.concat(newRoutes);
  };
  const setDefaultRoutes = (routes: RouteRecordRaw[]): void => {
    defaultRoutes.value = constantRoutes.concat(routes);
  };
  const setTopbarRoutes = (routes: RouteRecordRaw[]): void => {
    topbarRouters.value = routes;
  };
  const setSidebarRouters = (routes: RouteRecordRaw[]): void => {
    sidebarRouters.value = routes;
  };
  const generateRoutes = async (systemCode?: string): Promise<RouteRecordRaw[]> => {
    const code = systemCode || currentSystemCode.value;
    // 仅首次加载时请求后端，后续从缓存取
    if (allRouteDataCache.value.length === 0) {
      const res = await getRouters();
      allRouteDataCache.value = res.data as any[];
      console.log('[路由调试] 后端返回全量路由数据 =', JSON.parse(JSON.stringify(allRouteDataCache.value)));
    }
    // 按当前 systemCode 过滤出匹配的顶层路由
    const filteredData = allRouteDataCache.value.filter((route: any) => route.systemCode === code);
    console.log('[路由调试] systemCode =', code, ', 过滤后路由数据 =', JSON.parse(JSON.stringify(filteredData)));
    const sdata = JSON.parse(JSON.stringify(filteredData));
    const rdata = JSON.parse(JSON.stringify(filteredData));
    const defaultData = JSON.parse(JSON.stringify(filteredData));
    const sidebarRoutes = filterAsyncRouter(sdata);
    const rewriteRoutes = filterAsyncRouter(rdata, undefined, true);
    const defaultRoutes = filterAsyncRouter(defaultData);
    const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
    asyncRoutes.forEach((route) => {
      router.addRoute(route);
    });
    setRoutes(rewriteRoutes);
    setSidebarRouters(constantRoutes.concat(sidebarRoutes));
    setDefaultRoutes(sidebarRoutes);
    setTopbarRoutes(defaultRoutes);
    // 路由name重复检查
    duplicateRouteChecker(asyncRoutes, sidebarRoutes);
    return new Promise<RouteRecordRaw[]>((resolve) => resolve(rewriteRoutes));
  };

  /**
   * 遍历后台传来的路由字符串，转换为组件对象
   * @param asyncRouterMap 后台传来的路由字符串
   * @param lastRouter 上一级路由
   * @param type 是否是重写路由
   */
  const filterAsyncRouter = (asyncRouterMap: RouteRecordRaw[], lastRouter?: RouteRecordRaw, type = false): RouteRecordRaw[] => {
    return asyncRouterMap.filter((route) => {
      if (type && route.children) {
        route.children = filterChildren(route.children, undefined);
      }
      // Layout ParentView 组件特殊处理
      if (route.component?.toString() === 'Layout') {
        route.component = Layout;
      } else if (route.component?.toString() === 'ParentView') {
        route.component = ParentView;
      } else if (route.component?.toString() === 'InnerLink') {
        route.component = InnerLink;
      } else {
        route.component = loadView(route.component, route.name as string);
      }
      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;
    });
  };
  const filterChildren = (childrenMap: RouteRecordRaw[], lastRouter?: RouteRecordRaw): RouteRecordRaw[] => {
    let children: RouteRecordRaw[] = [];
    childrenMap.forEach((el) => {
      el.path = lastRouter ? lastRouter.path + '/' + el.path : el.path;
      if (el.children && el.children.length && el.component?.toString() === 'ParentView') {
        children = children.concat(filterChildren(el.children, el));
      } else {
        children.push(el);
      }
    });
    return children;
  };
  /**
   * 切换菜单组：更新 systemCode，重新加载路由并刷新页面
   */
  const switchSystemCode = async (systemCode: string) => {
    currentSystemCode.value = systemCode;
    sessionStorage.setItem(SYSTEM_CODE_KEY, systemCode);
    const option = systemCodeOptions.find((o) => o.value === systemCode);
    // 判断是否为全屏模式（iframe 或 Vue 路由）
    if (option?.iframeUrl || option?.fullscreenRoute) {
      iframeMode.value = true;
      iframeUrl.value = option.iframeUrl ? buildIframeUrl(option.iframeUrl) : '';
      fullscreenRoute.value = option.fullscreenRoute || '';
      setSidebarRouters([]);
      if (option.fullscreenRoute) {
        await router.push(option.fullscreenRoute);
      }
      return;
    }
    iframeMode.value = false;
    iframeUrl.value = '';
    fullscreenRoute.value = '';

    // ====== 彻底清理所有动态路由，保证路由表干净 ======
    // 1. 收集所有静态路由名称（包括子路由）
    const constantNames = new Set<string | symbol>();
    const collectNames = (routeList: RouteRecordRaw[]) => {
      routeList.forEach((r) => {
        if (r.name) constantNames.add(r.name);
        if (r.children) collectNames(r.children);
      });
    };
    collectNames(constantRoutes);
    // 2. 移除所有非静态路由（包括之前的动态业务路由和404兜底路由）
    router.getRoutes().forEach((route) => {
      if (route.name && !constantNames.has(route.name)) {
        router.removeRoute(route.name);
      }
    });

    // ====== 重新生成并注册路由 ======
    const accessRoutes = await generateRoutes(systemCode);
    accessRoutes.forEach((route) => {
      if (!isHttp(route.path)) {
        router.addRoute(route);
      }
    });
    // 重新添加404兜底路由，确保放在所有动态路由之后
    router.addRoute({ name: CATCH_ALL_ROUTE_NAME, path: '/:pathMatch(.*)*', component: () => import('@/views/error/404.vue') });
    console.log('[路由调试] switchSystemCode 完成, 当前路由列表 =', router.getRoutes().map((r) => ({ name: r.name, path: r.path })));

    // 跳转到默认路由
    if (option?.defaultRoute) {
      await router.push(option.defaultRoute);
    }
  };

  /**
   * 清理路由缓存并重置系统码到首页，用于切换账号登录时
   */
  const cleanRouteCache = () => {
    allRouteDataCache.value = [];
    routes.value = [];
    addRoutes.value = [];
    defaultRoutes.value = [];
    topbarRouters.value = [];
    sidebarRouters.value = [];
    // 重置到首页
    currentSystemCode.value = 'planindex';
    sessionStorage.setItem(SYSTEM_CODE_KEY, 'planindex');
    const defaultOption = systemCodeOptions.find((o) => o.value === 'planindex');
    iframeMode.value = !!(defaultOption?.iframeUrl || defaultOption?.fullscreenRoute);
    iframeUrl.value = defaultOption?.iframeUrl ? buildIframeUrl(defaultOption.iframeUrl) : '';
    fullscreenRoute.value = defaultOption?.fullscreenRoute || '';
  };

  /** 根据后端返回的路由数据，动态过滤可见的系统分类选项（首页始终显示） */
  const visibleSystemCodeOptions = computed(() => {
    return systemCodeOptions.filter((option) => {
      // 首页（有 iframeUrl 或 fullscreenRoute 的）始终显示
      if (option.iframeUrl || option.fullscreenRoute) return true;
      // 其他选项：只有当后端路由中存在匹配的 systemCode 时才显示
      return allRouteDataCache.value.some((route: any) => route.systemCode === option.value);
    });
  });

  return {
    routes,
    topbarRouters,
    sidebarRouters,
    defaultRoutes,
    currentSystemCode,
    iframeMode,
    iframeUrl,
    fullscreenRoute,
    visibleSystemCodeOptions,

    getRoutes,
    getDefaultRoutes,
    getSidebarRoutes,
    getTopbarRoutes,

    setRoutes,
    generateRoutes,
    setSidebarRouters,
    switchSystemCode,
    cleanRouteCache
  };
});

// 动态路由遍历，验证是否具备权限
export const filterDynamicRoutes = (routes: RouteRecordRaw[]) => {
  const res: RouteRecordRaw[] = [];
  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: any, name: string) => {
  let res;
  const allDirs: string[] = [];
  for (const path in modules) {
    const viewsIndex = path.indexOf('/views/');
    let dir = path.substring(viewsIndex + 7);
    dir = dir.substring(0, dir.lastIndexOf('.vue'));
    allDirs.push(dir);
    if (dir === view) {
      res = createCustomNameComponent(modules[path], { name });
      console.log('[路由调试] loadView 匹配成功: view =', view, ', name =', name);
      return res;
    }
  }
  console.warn('[路由调试] loadView 未匹配到组件! view =', JSON.stringify(view), ', name =', name, '\n  glob扫描到的路径:', allDirs);
  return res;
};

// 非setup
export const usePermissionStoreHook = () => {
  return usePermissionStore(store);
};

interface Route {
  name?: string | symbol;
  path: string;
  children?: Route[];
}

/**
 * 检查路由name是否重复
 * @param localRoutes 本地路由
 * @param routes 动态路由
 */
function duplicateRouteChecker(localRoutes: Route[], routes: Route[]) {
  // 展平
  function flatRoutes(routes: Route[]) {
    const res: Route[] = [];
    routes.forEach((route) => {
      if (route.children) {
        res.push(...flatRoutes(route.children));
      } else {
        res.push(route);
      }
    });
    return res;
  }

  const allRoutes = flatRoutes([...localRoutes, ...routes]);

  const nameList: string[] = [];
  allRoutes.forEach((route) => {
    const name = route.name.toString();
    if (name && nameList.includes(name)) {
      const message = `路由名称: [${name}] 重复, 会造成 404`;
      console.error(message);
      ElNotification({
        title: '路由名称重复',
        message,
        type: 'error'
      });
      return;
    }
    nameList.push(route.name.toString());
  });
}