import React from 'react';
import { useNavigate } from 'react-router';
import { useAuth } from './hooks/AuthProvider';
import {
  Users,
  Settings,
  User,
  LogOut,
  BarChart3,
  LayoutDashboard
} from 'lucide-react';

export interface MenuItem {
  key: string;
  label: string;
  icon?: React.ReactNode;
  children?: MenuItem[];
  path?: string;
  permission?: string;
  onClick?: () => void;
}

/**
 * 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 navigate = useNavigate();
  const { logout: handleLogout } = useAuth();
  const [collapsed, setCollapsed] = React.useState(false);

  // 基础菜单项配置
  const menuItems: MenuItem[] = [
    {
      key: 'dashboard',
      label: '控制台',
      icon: <LayoutDashboard className="h-4 w-4" />,
      path: '/admin/dashboard'
    },
    {
      key: 'users',
      label: '用户管理',
      icon: <Users className="h-4 w-4" />,
      path: '/admin/users',
      permission: 'user:manage'
    },
    {
      key: 'analytics',
      label: '数据分析',
      icon: <BarChart3 className="h-4 w-4" />,
      path: '/admin/analytics',
      permission: 'analytics:view'
    },
    {
      key: 'settings',
      label: '系统设置',
      icon: <Settings className="h-4 w-4" />,
      path: '/admin/settings',
      permission: 'settings:manage'
    },
  ];

  // 用户菜单项
  const userMenuItems = [
    {
      key: 'profile',
      label: '个人资料',
      icon: <User className="mr-2 h-4 w-4" />,
      onClick: () => navigate('/admin/profile')
    },
    {
      key: 'settings',
      label: '账户设置',
      icon: <Settings className="mr-2 h-4 w-4" />,
      onClick: () => navigate('/admin/account-settings')
    },
    {
      type: 'separator',
      key: 'divider',
    },
    {
      key: 'logout',
      label: '退出登录',
      icon: <LogOut className="mr-2 h-4 w-4" />,
      onClick: () => handleLogout()
    }
  ];

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

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