import 'package:flutter/material.dart';

import 'package:go_router/go_router.dart';

class HomeScreenWithNavBar extends StatefulWidget {
  const HomeScreenWithNavBar({
    super.key,
    required this.initIndex,
    required this.child,
    this.listController,
  });

  final int initIndex;
  final Widget child;
  // used to get back to top
  final ScrollController? listController;

  @override
  State<HomeScreenWithNavBar> createState() => _HomeScreenWithNavBarState();
}

class _HomeScreenWithNavBarState extends State<HomeScreenWithNavBar> {
  // int _selectedIndex = 0;

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: widget.child,
      bottomNavigationBar: BottomNavigationBar(
        backgroundColor:
            Theme.of(context).bottomNavigationBarTheme.backgroundColor,
        items: const [
          BottomNavigationBarItem(
            icon: Icon(Icons.message),
            label: '消息',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.contacts),
            label: '通讯录',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.star),
            label: '更多',
          ),
        ],
        onTap: (int index) => _onItemTapped(index, context),
        currentIndex: widget.initIndex,
      ),
    );
  }

  void _onItemTapped(int index, BuildContext context) {
    // setState(() {
    //   _selectedIndex = index;
    // });

    switch (index) {
      case 0:
        GoRouter.of(context).go('/chat');
        break;

      case 1:
        GoRouter.of(context).go('/contact');
        break;

      case 2:
        GoRouter.of(context).go('/more');
        break;
    }
  }
}