swingmusic-extended/swingmusic_mobile/lib/shared/widgets/main_navigation.dart

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import '../../core/constants/app_constants.dart';
import '../../core/constants/app_icons.dart';
import '../../core/widgets/mini_player.dart';

class MainNavigation extends StatefulWidget {
  final Widget child;
  
  const MainNavigation({
    super.key,
    required this.child,
  });

  @override
  State<MainNavigation> createState() => _MainNavigationState();
}

class _MainNavigationState extends State<MainNavigation> {
  int _currentIndex = 0;

  final List<NavigationItem> _navigationItems = [
    NavigationItem(
      icon: AppIcons.home,
      selectedIcon: AppIcons.homeFilled,
      label: 'Home',
      route: AppConstants.homeRoute,
    ),
    NavigationItem(
      icon: AppIcons.search,
      selectedIcon: AppIcons.searchFilled,
      label: 'Search',
      route: AppConstants.searchRoute,
    ),
    NavigationItem(
      icon: AppIcons.library,
      selectedIcon: AppIcons.libraryFilled,
      label: 'Library',
      route: AppConstants.libraryRoute,
    ),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: [
          Expanded(
            child: widget.child,
          ),
          const MiniPlayer(),
        ],
      ),
      bottomNavigationBar: Container(
        decoration: BoxDecoration(
          color: Theme.of(context).colorScheme.surface,
          boxShadow: [
            BoxShadow(
              color: Theme.of(context).shadowColor.withValues(alpha: 0.1),
              blurRadius: 8,
              offset: const Offset(0, -2),
            ),
          ],
        ),
        child: SafeArea(
          child: Padding(
            padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: _navigationItems.map((item) {
                final isSelected = _currentIndex == _navigationItems.indexOf(item);
                return Expanded(
                  child: InkWell(
                    onTap: () => _onItemTapped(_navigationItems.indexOf(item)),
                    borderRadius: BorderRadius.circular(8),
                    child: Padding(
                      padding: const EdgeInsets.symmetric(vertical: 8.0),
                      child: Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Icon(
                            isSelected ? item.selectedIcon : item.icon,
                            color: isSelected 
                                ? Theme.of(context).colorScheme.primary
                                : Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.6),
                            size: 24,
                          ),
                          const SizedBox(height: 4),
                          Text(
                            item.label,
                            style: Theme.of(context).textTheme.bodySmall?.copyWith(
                              color: isSelected 
                                  ? Theme.of(context).colorScheme.primary
                                  : Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.6),
                              fontWeight: isSelected ? FontWeight.w700 : FontWeight.w500,
                              fontSize: 12,
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                );
              }).toList(),
            ),
          ),
        ),
      ),
    );
  }

  void _onItemTapped(int index) {
    final item = _navigationItems[index];
    if (_currentIndex != index) {
      setState(() {
        _currentIndex = index;
      });
      context.go(item.route);
    }
  }
}

class NavigationItem {
  final IconData icon;
  final IconData selectedIcon;
  final String label;
  final String route;

  NavigationItem({
    required this.icon,
    required this.selectedIcon,
    required this.label,
    required this.route,
  });
}