import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(useMaterial3: true),
      home: const MainScreen(),
      routes: {
        '/profile': (context) =>
            const Scaffold(body: Center(child: Text("Profile Screen"))),
        '/settings': (context) =>
            const Scaffold(body: Center(child: Text("Settings Screen"))),
        '/Help': (context) =>
            const Scaffold(body: Center(child: Text("Help Screen"))),
      },
    );
  }
}

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

  @override
  State<MainScreen> createState() => _MainScreenState();
}

class _MainScreenState extends State<MainScreen> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("navigation demos"),
        centerTitle: true,
        backgroundColor: Theme.of(context).colorScheme.primaryContainer,
      ),
      drawer: Drawer(
        child: Column(
          children: [
            UserAccountsDrawerHeader(
              accountName: Text("Name"),
              accountEmail: Text("[email protected]"),
            ),
            ListTile(
              leading: Icon(Icons.person),
              title: Text("profile"),
              onTap: () {
                Navigator.pushNamed(context, '/profile');
              },
            ),
            ListTile(
              leading: Icon(Icons.settings),
              title: Text("settings"),
              onTap: () {
                Navigator.pushNamed(context, '/settings');
              },
            ),
            ListTile(
              leading: Icon(Icons.help),
              title: Text("help"),
              onTap: () {
                Navigator.pushNamed(context, '/Help');
              },
            ),
          ],
        ),
      ),
      body: HomeScreen(),
    );
  }
}

class HomeScreen extends StatelessWidget {
  const HomeScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
      length: 3,
      child: Column(
        children: [
          TabBar(
            tabs: [
              Tab(icon: Icon(Icons.chat), text: "chat"),
              Tab(icon: Icon(Icons.group), text: "group"),
              Tab(icon: Icon(Icons.notifications), text: "notification"),
            ],
          ),
          Expanded(
            child: TabBarView(
              children: [
                Center(child: Text("Chat view Screen")),
                Center(child: Text("friend view Screen")),
                Center(child: Text("notification view Screen")),
              ],
            ),
          ),
        ],
      ),
    );
  }
}