import 'package:flutter/material.dart';
import 'package:patbond_flutter/features/home/home_page.dart';

class MainShellPage extends StatefulWidget {
  const MainShellPage({super.key});

  @override
  State<MainShellPage> createState() => _MainShellPageState();
}

class _MainShellPageState extends State<MainShellPage> {
  int currentIndex = 0;

  final pages = const [
    HomePage(),
    Center(child: Text('发现')),
    Center(child: Text('发布')),
    Center(child: Text('消息')),
    Center(child: Text('我的')),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: pages[currentIndex],
      bottomNavigationBar: NavigationBarTheme(
        data: NavigationBarThemeData(
          backgroundColor: Colors.white,
          indicatorColor: Colors.red.shade50,
          labelTextStyle: WidgetStateProperty.all(
            const TextStyle(
              fontSize: 12,
              fontWeight: FontWeight.w600,
            ),
          ),
          iconTheme: WidgetStateProperty.resolveWith((states) {
            if (states.contains(WidgetState.selected)) {
              return const IconThemeData(color: Colors.red);
            }
            return const IconThemeData(color: Colors.grey);
          }),
        ),
        child: NavigationBar(
          selectedIndex: currentIndex,
          onDestinationSelected: (index) {
            setState(() {
              currentIndex = index;
            });
          },
          destinations: const [
            NavigationDestination(
              icon: Icon(Icons.home_outlined),
              selectedIcon: Icon(Icons.home),
              label: '首页',
            ),
            NavigationDestination(
              icon: Icon(Icons.explore_outlined),
              selectedIcon: Icon(Icons.explore),
              label: '发现',
            ),
            NavigationDestination(
              icon: Icon(Icons.add_circle_outline),
              selectedIcon: Icon(Icons.add_circle),
              label: '发布',
            ),
            NavigationDestination(
              icon: Icon(Icons.notifications_outlined),
              selectedIcon: Icon(Icons.notifications),
              label: '消息',
            ),
            NavigationDestination(
              icon: Icon(Icons.person_outline),
              selectedIcon: Icon(Icons.person),
              label: '我的',
            ),
          ],
        ),
      ),
    );
  }
}