import { createRouter, createWebHashHistory } from "vue-router";
import { adminApi } from "../api/admin";
import { clearAdminSession, getAdminInfo, getAdminToken, hasPermission, setAdminInfo } from "../utils/auth";

const adminChildren = [
  {
    path: "dashboard",
    name: "dashboard",
    component: () => import("../pages/dashboard/index.vue"),
    meta: {
      title: "工作台",
      desc: "查看当前订单、报告与处理进度概览。",
      permission: "dashboard.view",
    },
  },
  {
    path: "orders",
    name: "orders",
    component: () => import("../pages/orders/index.vue"),
    meta: {
      title: "订单中心",
      desc: "管理订单流转、查看补图任务与处理详情。",
      permission: "orders.manage",
    },
  },
  {
    path: "warehouse-workbench",
    name: "warehouse-workbench",
    component: () => import("../pages/warehouse-workbench/index.vue"),
    meta: {
      title: "仓管作业台",
      desc: "扫码处理入库、中检送检出入库与物品寄回。",
      permission: "warehouse_workbench.manage",
    },
  },
  {
    path: "appraisal-tasks",
    name: "appraisal-tasks",
    component: () => import("../pages/appraisal-tasks/index.vue"),
    meta: {
      title: "鉴定作业台",
      desc: "查看鉴定任务、资料详情与当前作业结论。",
      permission: "appraisal_tasks.manage",
    },
  },
  {
    path: "catalog",
    name: "catalog",
    component: () => import("../pages/catalog/index.vue"),
    meta: {
      title: "商品资料中心",
      desc: "查看品类、品牌、上传模板与鉴定模板等基础配置数据。",
      permission: "catalog.manage",
    },
  },
  {
    path: "reports",
    name: "reports",
    component: () => import("../pages/reports/index.vue"),
    meta: {
      title: "报告中心",
      desc: "查看已生成报告、报告状态与验真信息。",
      permission: "reports.manage",
    },
  },
  {
    path: "messages",
    name: "messages",
    component: () => import("../pages/messages/index.vue"),
    meta: {
      title: "消息中心",
      desc: "查看消息模板、触发规则与发送记录概览。",
      permission: "messages.manage",
    },
  },
  {
    path: "tickets",
    name: "tickets",
    component: () => import("../pages/tickets/index.vue"),
    meta: {
      title: "客服与售后",
      desc: "查看工单、用户留言与售后处理记录。",
      permission: "tickets.manage",
    },
  },
  {
    path: "users",
    name: "users",
    component: () => import("../pages/users/index.vue"),
    meta: {
      title: "用户管理",
      desc: "查看用户资料、地址、消息和工单等用户侧资产概览。",
      permission: "users.manage",
    },
  },
  {
    path: "customers",
    name: "customers",
    component: () => import("../pages/customers/index.vue"),
    meta: {
      title: "客户管理",
      desc: "维护大客户资料、开放接口应用 Key、订单映射和 Webhook 推送记录。",
      permission: "customers.manage",
    },
  },
  {
    path: "warehouses",
    name: "warehouses",
    component: () => import("../pages/warehouses/index.vue"),
    meta: {
      title: "仓库中心",
      desc: "维护收货仓库、检测中心地址信息，并为后续多仓库扩展预留能力。",
      permission: "warehouses.manage",
    },
  },
  {
    path: "service-prices",
    name: "service-prices",
    component: () => import("../pages/service-prices/index.vue"),
    meta: {
      title: "服务价格",
      desc: "维护安心验与中检服务的可选价格套餐。",
      permission: "service_prices.manage",
    },
  },
  {
    path: "express-companies",
    name: "express-companies",
    component: () => import("../pages/express-companies/index.vue"),
    meta: {
      title: "快递公司",
      desc: "维护仓管寄回时可选择的快递公司和默认项。",
      permission: "warehouses.manage",
    },
  },
  {
    path: "materials",
    name: "materials",
    component: () => import("../pages/materials/index.vue"),
    meta: {
      title: "物料管理",
      desc: "批量生成吊牌二维码，管理批次下载、条码搜索与报告绑定状态。",
      permission: "materials.manage",
    },
  },
  {
    path: "access",
    name: "access",
    component: () => import("../pages/access/index.vue"),
    meta: {
      title: "权限中心",
      desc: "管理管理员账号、角色配置与权限点分配。",
      permission: "access.manage",
    },
  },
  {
    path: "content",
    name: "content",
    component: () => import("../pages/content/index.vue"),
    redirect: { name: "content-home" },
    meta: {
      title: "内容中心",
      desc: "维护首页展示内容与帮助中心文章等用户端内容配置。",
      permission: "system.manage",
    },
    children: [
      {
        path: "home",
        name: "content-home",
        component: () => import("../pages/content/home.vue"),
        meta: {
          title: "内容中心",
          desc: "首页内容维护：Banner、服务入口、快捷入口和信任信息。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "home",
        },
      },
      {
        path: "policy",
        name: "content-policy",
        component: () => import("../pages/content/policy.vue"),
        meta: {
          title: "内容中心",
          desc: "协议与说明维护：设置页说明入口和下单确认协议。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "policy",
        },
      },
      {
        path: "meta",
        name: "content-meta",
        component: () => import("../pages/content/meta.vue"),
        meta: {
          title: "内容中心",
          desc: "分类与文案维护：帮助分类、消息事件、工单文案和风险提示。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "meta",
        },
      },
      {
        path: "articles",
        name: "content-articles",
        component: () => import("../pages/content/articles.vue"),
        meta: {
          title: "内容中心",
          desc: "帮助文章维护：文章正文、推荐状态和排序。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "articles",
        },
      },
      {
        path: "articles/create",
        name: "content-article-create",
        component: () => import("../pages/content/article-edit.vue"),
        meta: {
          title: "内容中心",
          desc: "新增帮助文章：编辑分类、摘要、关键词和富文本正文。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "articles",
        },
      },
      {
        path: "articles/:id/edit",
        name: "content-article-edit",
        component: () => import("../pages/content/article-edit.vue"),
        meta: {
          title: "内容中心",
          desc: "编辑帮助文章：维护富文本正文、推荐状态和排序。",
          permission: "system.manage",
          menuIndex: "content",
          contentTab: "articles",
        },
      },
    ],
  },
  {
    path: "system-config",
    name: "system-config",
    component: () => import("../pages/system-config/index.vue"),
    meta: {
      title: "系统配置",
      desc: "配置小程序、H5、支付与商户平台等上线核心参数。",
      permission: "system.manage",
    },
  },
];

const router = createRouter({
  history: createWebHashHistory(),
  routes: [
    {
      path: "/login",
      name: "login",
      component: () => import("../pages/login/index.vue"),
      meta: {
        public: true,
        title: "登录",
      },
    },
    {
      path: "/",
      component: () => import("../layouts/AdminLayout.vue"),
      redirect: "/dashboard",
      children: adminChildren,
    },
  ],
});

function firstAccessibleRoute() {
  const target = adminChildren.find((route) => hasPermission(route.meta.permission as string));
  return target?.name || "dashboard";
}

router.beforeEach(async (to) => {
  if (to.meta.public) {
    if (getAdminToken()) {
      return { name: firstAccessibleRoute() };
    }
    return true;
  }

  const token = getAdminToken();
  if (!token) {
    clearAdminSession();
    return { name: "login" };
  }

  if (!getAdminInfo()) {
    try {
      const response = await adminApi.getAuthMe();
      setAdminInfo(response.data.admin_info);
    } catch (error) {
      console.error(error);
      clearAdminSession();
      return { name: "login" };
    }
  }

  const permission = to.meta.permission as string | undefined;
  if (permission && !hasPermission(permission)) {
    return { name: firstAccessibleRoute() };
  }

  return true;
});

export default router;