CARING_RESTORANT/lib/layouts/main_layout.dart

import 'package:flutter/material.dart';
import '../widgets/bottom_navigation.dart';

class MainLayout extends StatefulWidget {
  final Widget child;
  final int currentIndex;

  const MainLayout({super.key, required this.child, this.currentIndex = 0});

  @override
  // ignore: library_private_types_in_public_api
  _MainLayoutState createState() => _MainLayoutState();
}

class _MainLayoutState extends State<MainLayout> {
  int _selectedIndex = 0;

  @override
  void initState() {
    super.initState();
    _selectedIndex = widget.currentIndex;
  }

  @override
  Widget build(BuildContext context) {
    final isDesktop = MediaQuery.of(context).size.width >= 768;

    return Scaffold(
      backgroundColor: Colors.grey.shade50,
      body: Row(
        children: [
          // Desktop Sidebar
          if (isDesktop) _buildDesktopSidebar(),

          // Main Content
          Expanded(
            child: Column(
              children: [
                // Page Content
                Expanded(child: widget.child),

                // Bottom Navigation
                AppBottomNavigation(
                  selectedIndex: _selectedIndex,
                  onItemTapped: _onItemTapped,
                  isDesktop: isDesktop,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  void _onItemTapped(int index) {
    setState(() {
      _selectedIndex = index;
    });

    // Global navigation logic
    switch (index) {
      case 0:
        Navigator.pushReplacementNamed(context, '/tables');
        break;
      case 1:
        Navigator.pushReplacementNamed(context, '/commandes');
        break;
      case 2:
        Navigator.pushReplacementNamed(context, '/categories');
        break;
      case 3:
        Navigator.pushReplacementNamed(context, '/menus');
        break;
    }
  }

  Widget _buildDesktopSidebar() {
    return Container(
      width: 250,
      color: Colors.white,
      child: Column(
        children: [
          Container(
            padding: const EdgeInsets.all(20),
            child: const Text(
              'Restaurant App',
              style: TextStyle(
                fontSize: 20,
                fontWeight: FontWeight.bold,
                color: Colors.black87,
              ),
            ),
          ),
          Expanded(
            child: ListView(
              children: [
                _buildSidebarItem(
                  icon: Icons.table_restaurant,
                  title: 'Tables',
                  route: '/tables',
                  index: 0,
                ),
                _buildSidebarItem(
                  icon: Icons.receipt_long_outlined,
                  title: 'Commandes',
                  route: '/commandes',
                  index: 1,
                ),
                _buildSidebarItem(
                  icon: Icons.category_outlined,
                  title: 'Catégories',
                  route: '/categories',
                  index: 2,
                ),
                _buildSidebarItem(
                  icon: Icons.restaurant_menu,
                  title: 'Menus',
                  route: '/menus',
                  index: 3,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildSidebarItem({
    required IconData icon,
    required String title,
    required String route,
    required int index,
  }) {
    final isSelected = _selectedIndex == index;

    return ListTile(
      leading: Icon(
        icon,
        color: isSelected ? Colors.green.shade700 : Colors.grey.shade600,
      ),
      title: Text(
        title,
        style: TextStyle(
          color: isSelected ? Colors.green.shade700 : Colors.grey.shade700,
          fontWeight: isSelected ? FontWeight.w600 : FontWeight.normal,
        ),
      ),
      selected: isSelected,
      selectedTileColor: Colors.green.shade50,
      onTap: () {
        setState(() {
          _selectedIndex = index;
        });
        Navigator.pushReplacementNamed(context, route);
      },
    );
  }
}