import React from 'react';
import { useNavigate } from 'react-router';
import type { MenuProps } from 'antd';
import {
  UserOutlined,
  DashboardOutlined,
  TeamOutlined,
  SettingOutlined,
  FileOutlined,
  MessageOutlined,
  InfoCircleOutlined,
  BarChartOutlined,
  EnvironmentOutlined,
  MoonOutlined,
  SunOutlined
} from '@ant-design/icons';
import { useTheme } from './hooks_sys.tsx';

export interface MenuItem {
  key: string;
  label: string;
  icon?: React.ReactNode;
  children?: MenuItem[];
  path?: string;
  permission?: string;
}

/**
 * 菜单搜索 Hook
 * 封装菜单搜索相关逻辑
 */
export const useMenuSearch = (menuItems: MenuItem[]) => {
  const [searchText, setSearchText] = React.useState('');

  // 过滤菜单项
  const filteredMenuItems = React.useMemo(() => {
    if (!searchText) return menuItems;
    
    const filterItems = (items: MenuItem[]): MenuItem[] => {
      return items
        .map(item => {
          // 克隆对象避免修改原数据
          const newItem = { ...item };
          if (newItem.children) {
            newItem.children = filterItems(newItem.children);
          }
          return newItem;
        })
        .filter(item => {
          // 保留匹配项或其子项匹配的项
          const match = item.label.toLowerCase().includes(searchText.toLowerCase());
          if (match) return true;
          if (item.children?.length) return true;
          return false;
        });
    };
    
    return filterItems(menuItems);
  }, [menuItems, searchText]);

  // 清除搜索
  const clearSearch = () => {
    setSearchText('');
  };

  return {
    searchText,
    setSearchText,
    filteredMenuItems,
    clearSearch
  };
};

export const useMenu = () => {
  const { isDark, toggleTheme } = useTheme();
  const navigate = useNavigate();
  const [collapsed, setCollapsed] = React.useState(false);
  const [openKeys, setOpenKeys] = React.useState<string[]>([]);

  // 基础菜单项配置
  const menuItems: MenuItem[] = [
    {
      key: 'dashboard',
      label: '控制台',
      icon: <DashboardOutlined />,
      path: '/admin/dashboard'
    },
    {
      key: 'users',
      label: '用户管理',
      icon: <TeamOutlined />,
      path: '/admin/users',
      permission: 'user:manage'
    },
    {
      key: 'settings',
      label: '系统设置',
      icon: <SettingOutlined />,
      children: [
        {
          key: 'theme-settings',
          label: '主题设置',
          path: '/admin/theme-settings',
          permission: 'system:settings'
        },
        {
          key: 'system-settings',
          label: '系统配置',
          path: '/admin/settings',
          permission: 'system:settings'
        }
      ]
    },
    {
      key: 'content',
      label: '内容管理',
      icon: <FileOutlined />,
      children: [
        {
          key: 'know-info',
          label: '知识库',
          path: '/admin/know-info',
          permission: 'content:manage'
        },
        {
          key: 'file-library',
          label: '文件库',
          path: '/admin/file-library',
          permission: 'content:manage'
        }
      ]
    },
    {
      key: 'messages',
      label: '消息中心',
      icon: <MessageOutlined />,
      path: '/admin/messages',
      permission: 'message:view'
    },
    {
      key: 'charts',
      label: '数据图表',
      icon: <BarChartOutlined />,
      path: '/admin/chart-dashboard',
      permission: 'chart:view'
    },
    {
      key: 'maps',
      label: '地图',
      icon: <EnvironmentOutlined />,
      path: '/admin/map-dashboard',
      permission: 'map:view'
    }
  ];

  // 用户菜单项
  const userMenuItems: MenuProps['items'] = [
    {
      key: 'profile',
      label: '个人资料',
      icon: <UserOutlined />
    },
    {
      key: 'theme',
      label: isDark ? '切换到亮色模式' : '切换到暗色模式',
      icon: isDark ? <SunOutlined /> : <MoonOutlined />,
      onClick: () => toggleTheme()
    },
    {
      key: 'logout',
      label: '退出登录',
      icon: <InfoCircleOutlined />,
      danger: true
    }
  ];

  // 处理菜单点击
  const handleMenuClick = (item: MenuItem) => {
    if (item.path) {
      navigate(item.path);
    }
  };

  // 处理菜单展开变化
  const onOpenChange = (keys: string[]) => {
    const latestOpenKey = keys.find(key => openKeys.indexOf(key) === -1);
    setOpenKeys(latestOpenKey ? [latestOpenKey] : []);
  };

  return {
    menuItems,
    userMenuItems,
    openKeys,
    collapsed,
    setCollapsed,
    handleMenuClick,
    onOpenChange
  };
};