import 'package:flutter/material.dart';
import 'package:superport/screens/sidebar/sidebar_screen.dart';
import 'package:superport/screens/overview/overview_screen.dart';
import 'package:superport/screens/equipment/equipment_list.dart';
import 'package:superport/screens/company/company_list.dart';
import 'package:superport/screens/user/user_list.dart';
import 'package:superport/screens/license/license_list.dart';
import 'package:superport/screens/warehouse_location/warehouse_location_list.dart';
import 'package:superport/screens/goods/goods_list.dart';
import 'package:superport/utils/constants.dart';

/// SPA 스타일의 앱 레이아웃 클래스
/// 사이드바는 고정되고 내용만 변경되는 구조를 제공
class AppLayout extends StatefulWidget {
  final String initialRoute;

  const AppLayout({Key? key, this.initialRoute = Routes.home})
    : super(key: key);

  @override
  _AppLayoutState createState() => _AppLayoutState();
}

class _AppLayoutState extends State<AppLayout> {
  late String _currentRoute;

  @override
  void initState() {
    super.initState();
    _currentRoute = widget.initialRoute;
  }

  /// 현재 경로에 따라 적절한 컨텐츠 섹션을 반환
  Widget _getContentForRoute(String route) {
    switch (route) {
      case Routes.home:
        return const OverviewScreen();
      case Routes.equipment:
      case Routes.equipmentInList:
      case Routes.equipmentOutList:
      case Routes.equipmentRentList:
        // 장비 목록 화면에 현재 라우트 정보를 전달
        return EquipmentListScreen(currentRoute: route);
      case Routes.goods:
        return const GoodsListScreen();
      case Routes.company:
        return const CompanyListScreen();
      case Routes.license:
        return const MaintenanceListScreen();
      case Routes.warehouseLocation:
        return const WarehouseLocationListScreen();
      default:
        return const OverviewScreen();
    }
  }

  /// 경로 변경 메서드
  void _navigateTo(String route) {
    setState(() {
      _currentRoute = route;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Row(
        children: [
          // 왼쪽 사이드바
          SizedBox(
            width: 280,
            child: SidebarMenu(
              currentRoute: _currentRoute,
              onRouteChanged: _navigateTo,
            ),
          ),
          // 오른쪽 컨텐츠 영역
          Expanded(child: _getContentForRoute(_currentRoute)),
        ],
      ),
    );
  }
}