import React, { useState, useEffect } from 'react';
import { Sidebar } from './Sidebar';
// import { Header } from './Header';
import { Breadcrumb } from './Breadcrumb';
import { useMatches, useLocation } from '@remix-run/react';
import type { UserRole } from '~/root';

interface LayoutProps {
  children: React.ReactNode;
  userRole?: UserRole;
  frontendJWT?: string;
  isMobile?: boolean;  // 是否为移动端设备（服务端通过 User-Agent 检测）
}

// 添加一个接口表示路由handle可能包含的属性
interface RouteHandle {
  hideBreadcrumb?: boolean;
  [key: string]: unknown;
}

interface Match {
  handle?: RouteHandle;
  pathname: string;
  data: unknown;
}

export function Layout({ children, userRole = 'developer' as UserRole, frontendJWT = '', isMobile = false }: LayoutProps) {
  const [sidebarCollapsed, setSidebarCollapsed] = useState(false);
  const [effectiveUserRole, setEffectiveUserRole] = useState<UserRole>(userRole);
  const [effectiveFrontendJWT, setEffectiveFrontendJWT] = useState<string>(frontendJWT);
  const matches = useMatches() as Match[];
  const location = useLocation();

  // 检查当前路径是否应该隐藏侧边栏
  const noLayoutPaths = ['/login', '/'];
  // 移动端设备强制隐藏侧边栏
  const shouldHideSidebar = isMobile || noLayoutPaths.includes(location.pathname);

  // 检查当前路由是否应该隐藏默认面包屑
  // 移动端设备强制隐藏面包屑（避免显示首页链接）
  const shouldHideBreadcrumb = isMobile || shouldHideSidebar || matches.some(match =>
    match.handle && match.handle.hideBreadcrumb === true
  );

  // 从 localStorage 读取用户信息和 JWT 作为备用方案
  useEffect(() => {
    if (typeof window === 'undefined') return;

    try {
      // 如果服务端没有传递 userRole，从 localStorage 读取
      if (!userRole || userRole === '') {
        const storedUserInfoStr = localStorage.getItem('user_info');
        if (storedUserInfoStr) {
          const storedUserInfo = JSON.parse(storedUserInfoStr);
          const storedUserRole = storedUserInfo.user_role || 'common';
          console.log('📖 [Layout] 从 localStorage 读取用户角色:', storedUserRole);
          setEffectiveUserRole(storedUserRole as UserRole);
        }
      } else {
        setEffectiveUserRole(userRole);
      }

      // 如果服务端没有传递 frontendJWT，从 localStorage 读取
      if (!frontendJWT || frontendJWT === '') {
        const storedToken = localStorage.getItem('access_token');
        if (storedToken) {
          console.log('📖 [Layout] 从 localStorage 读取 JWT token');
          setEffectiveFrontendJWT(storedToken);
        }
      } else {
        setEffectiveFrontendJWT(frontendJWT);
      }
    } catch (error) {
      console.error('❌ [Layout] 读取 localStorage 失败:', error);
    }
  }, [userRole, frontendJWT]);

  // 从localStorage中获取侧边栏状态
  useEffect(() => {
    // 检查是否为移动端
    const isMobile = window.innerWidth <= 768;

    // 从localStorage获取侧边栏状态
    const savedState = localStorage.getItem('sidebarCollapsed');

    // 移动端默认收起，桌面端使用保存的状态
    if (isMobile) {
      setSidebarCollapsed(true);
    } else if (savedState) {
      setSidebarCollapsed(savedState === 'true');
    }
  }, []);
  
  const toggleSidebar = () => {
    const newState = !sidebarCollapsed;
    setSidebarCollapsed(newState);
    localStorage.setItem('sidebarCollapsed', String(newState));
  };
  
  // 切换应用模块
  // const changeAppModule = (appId: AppModule) => {
  //   setSelectedApp(appId);
  //   localStorage.setItem('selectedApp', appId);
  // };
  
  // 如果是无布局页面，只渲染内容
  if (shouldHideSidebar) {
    return <>{children}</>;
  }
  
  return (
    <div className="layout-container">
      {/* 侧边栏始终保留，不再使用条件渲染 */}
      <Sidebar
        collapsed={sidebarCollapsed}
        onToggle={toggleSidebar}
        userRole={effectiveUserRole}
        frontendJWT={effectiveFrontendJWT}
      />
      
      <div className={`main-content ${sidebarCollapsed ? 'sidebar-collapsed' : ''}`}>
        {/* 应用模块选择器 */}
        {/* <div className="app-module-selector py-2 px-4 border-b border-gray-100 flex items-center">
          {APP_MODULES.map(app => (
            <button
              key={app.id}
              onClick={() => changeAppModule(app.id as AppModule)}
              className={`app-module-btn mr-4 py-2 px-4 rounded-md flex items-center ${
                selectedApp === app.id ? 'bg-green-50 text-green-700 border border-green-200' : 'hover:bg-gray-50'
              }`}
            >
              <i className={`${app.icon} mr-2`}></i>
              <span>{app.name}</span>
            </button>
          ))}
        </div> */}
        
        <div className="content-container">
          {!shouldHideBreadcrumb && <Breadcrumb />}
          {children}
        </div>
      </div>
    </div>
  );
}