import React from "react";
import {
  DashboardOutlined,
  FileProtectOutlined,
  TeamOutlined,
  BankOutlined,
  UserSwitchOutlined,
  IdcardOutlined,
  SafetyCertificateOutlined,
  ToolOutlined,
  UserOutlined,
  BarChartOutlined,
  PieChartOutlined,
  ExperimentOutlined,
} from "@ant-design/icons";

const menuItems = [
  {
    key: "/certificate/container/Supervision",
    label: "监管端",
    icon: <DashboardOutlined />,
    children: [
      {
        key: "/certificate/container/Supervision/EnterpriseLicense",
        label: "企业证照",
        icon: <FileProtectOutlined />,
        children: [
          {
            key: "/certificate/container/Supervision/EnterpriseLicense/EnterpriseLicense",
            label: "企业证照管理",
            icon: <IdcardOutlined />,
          },
          {
            key: "/certificate/container/Supervision/EnterpriseLicense/BranchStatistics/List",
            label: "分公司统计",
            icon: <BarChartOutlined />,
          },
          {
            key: "/certificate/container/Supervision/EnterpriseLicense/StakeholderStatistics/List",
            label: "干系人统计",
            icon: <PieChartOutlined />,
          },
        ],
      },
      {
        key: "/certificate/container/Supervision/PersonnelLicense",
        label: "人员证照",
        icon: <TeamOutlined />,
        children: [
          {
            key: "/certificate/container/Supervision/PersonnelLicense/PersonInCharge/List",
            label: "负责人",
            icon: <UserOutlined />,
          },
          {
            key: "/certificate/container/Supervision/PersonnelLicense/SecurityAdmini/List",
            label: "安全管理员",
            icon: <SafetyCertificateOutlined />,
          },
          {
            key: "/certificate/container/Supervision/PersonnelLicense/SpecialDevice/List",
            label: "特种设备",
            icon: <ToolOutlined />,
          },
          {
            key: "/certificate/container/Supervision/PersonnelLicense/SpecialPersonnel/List",
            label: "特种作业人员",
            icon: <IdcardOutlined />,
          },
          {
            key: "/certificate/container/Supervision/PersonnelLicense/BranchCompanyStat/List",
            label: "分公司人员统计",
            icon: <BarChartOutlined />,
          },
          {
            key: "/certificate/container/Supervision/PersonnelLicense/StakeholderStat/List",
            label: "干系人人员统计",
            icon: <PieChartOutlined />,
          },
        ],
      },
    ],
  },
  {
    key: "/certificate/container/BranchCompany",
    label: "分公司端",
    icon: <BankOutlined />,
    children: [
      {
        key: "/certificate/container/BranchCompany/EnterpriseLicense/EnterpriseLicense",
        label: "企业证照管理",
        icon: <IdcardOutlined />,
      },
      {
        key: "/certificate/container/BranchCompany/PersonnelLicense",
        label: "人员证照",
        icon: <TeamOutlined />,
        children: [
          {
            key: "/certificate/container/BranchCompany/PersonnelLicense/PersonInCharge/List",
            label: "负责人",
            icon: <UserOutlined />,
          },
          {
            key: "/certificate/container/BranchCompany/PersonnelLicense/SecurityAdmini/List",
            label: "安全管理员",
            icon: <SafetyCertificateOutlined />,
          },
          {
            key: "/certificate/container/BranchCompany/PersonnelLicense/SpecialDevice/List",
            label: "特种设备",
            icon: <ToolOutlined />,
          },
          {
            key: "/certificate/container/BranchCompany/PersonnelLicense/SpecialPersonnel/List",
            label: "特种作业人员",
            icon: <IdcardOutlined />,
          },
        ],
      },
    ],
  },
  {
    key: "/certificate/container/Stakeholder",
    label: "干系人端",
    icon: <UserSwitchOutlined />,
    children: [
      {
        key: "/certificate/container/Stakeholder/EnterpriseLicense/EnterpriseLicense",
        label: "企业证照管理",
        icon: <IdcardOutlined />,
      },
      {
        key: "/certificate/container/Stakeholder/PersonnelLicense",
        label: "人员证照",
        icon: <TeamOutlined />,
        children: [
          {
            key: "/certificate/container/Stakeholder/PersonnelLicense/PersonInCharge/List",
            label: "负责人",
            icon: <UserOutlined />,
          },
          {
            key: "/certificate/container/Stakeholder/PersonnelLicense/SecurityAdmini/List",
            label: "安全管理员",
            icon: <SafetyCertificateOutlined />,
          },
          {
            key: "/certificate/container/Stakeholder/PersonnelLicense/SpecialDevice/List",
            label: "特种设备",
            icon: <ToolOutlined />,
          },
          {
            key: "/certificate/container/Stakeholder/PersonnelLicense/SpecialPersonnel/List",
            label: "特种作业人员",
            icon: <IdcardOutlined />,
          },
        ],
      },
    ],
  },
  {
    key: "/certificate/container/Test",
    label: "测试页面",
    icon: <ExperimentOutlined />,
  },
];

export default menuItems;

/** 扁平化菜单 */
export function flattenMenu(items) {
  const result = [];
  function walk(list) {
    for (const item of list) {
      result.push(item);
      if (item.children) walk(item.children);
    }
  }
  walk(items);
  return result;
}

/**
 * 根据路径查找面包屑路径
 * 返回从根到叶子节点的菜单项数组
 */
export function findMenuPath(path) {
  function search(items, ancestors) {
    for (const item of items) {
      const current = [...ancestors, item];
      if (item.key === path) {
        return current;
      }
      if (item.children) {
        const found = search(item.children, current);
        if (found) return found;
      }
    }
    return null;
  }
  return search(menuItems, []) || [];
}

/**
 * 根据路径获取页面标签名
 */
export function getPageLabel(path) {
  const flat = flattenMenu(menuItems);
  const item = flat.find((m) => m.key === path);
  return item?.label || path.split("/").filter(Boolean).pop() || "未命名页面";
}

/**
 * 根据路径获取默认展开的菜单项
 */
export function getOpenKeys(path) {
  const breadcrumb = findMenuPath(path);
  return breadcrumb.slice(0, -1).map((i) => i.key);
}

/**
 * 根据路径获取选中的菜单项
 */
export function getSelectedKeys(path) {
  const allPaths = flattenMenu(menuItems).map((m) => m.key);
  let match = "";
  for (const p of allPaths) {
    if (path.startsWith(p) && p.length > match.length) {
      match = p;
    }
  }
  return match ? [match] : [];
}