import 'package:flutter/material.dart';

class BottomNav extends StatelessWidget {
  final int currentIndex;
  final ValueChanged<int> onTap;

  const BottomNav({super.key, required this.currentIndex, required this.onTap});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;

    return Container(
      decoration: BoxDecoration(
        color: colorScheme.surface,
        border: Border(
          top: BorderSide(color: colorScheme.outlineVariant, width: 1),
        ),
        boxShadow: [
          BoxShadow(
            color: colorScheme.shadow,
            blurRadius: 8,
            offset: const Offset(0, -2),
          ),
        ],
      ),
      child: BottomNavigationBar(
        currentIndex: currentIndex,
        onTap: onTap,
        backgroundColor: Colors.transparent,
        elevation: 0,
        selectedItemColor: colorScheme.primary,
        unselectedItemColor: colorScheme.onSurface.withValues(alpha: 0.6),
        items: const [
          BottomNavigationBarItem(
            icon: Icon(Icons.local_library),
            label: 'Библиотека',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.category),
            label: 'Категории',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.bookmark),
            label: 'Избранное',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.settings),
            label: 'Настройки',
          ),
        ],
      ),
    );
  }
}