swingmusic-extended/swingmusic_mobile/lib/features/auth/auth_screen.dart

import 'package:flutter/material.dart';

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

  @override
  State<AuthScreen> createState() => _AuthScreenState();
}

class _AuthScreenState extends State<AuthScreen> {
  bool _isLoading = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Authentication'),
        elevation: 0,
        backgroundColor: Theme.of(context).colorScheme.surface,
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Icon(
              Icons.music_note,
              size: 80,
              color: Colors.blue,
            ),
            const SizedBox(height: 24),
            const Text(
              'SwingMusic',
              style: TextStyle(
                fontSize: 24,
                fontWeight: FontWeight.bold,
              ),
            ),
            const SizedBox(height: 8),
            const Text(
              'Connect to your music library',
              style: TextStyle(
                fontSize: 16,
                color: Colors.grey,
              ),
              textAlign: TextAlign.center,
            ),
            const SizedBox(height: 32),
            ElevatedButton(
              onPressed: _isLoading ? null : _handleLogin,
              style: ElevatedButton.styleFrom(
                backgroundColor: Colors.blue,
                foregroundColor: Colors.white,
              ),
              child: _isLoading
                  ? const SizedBox(
                      width: 20,
                      height: 20,
                      child: CircularProgressIndicator(
                        strokeWidth: 2,
                        valueColor: AlwaysStoppedAnimation(Colors.white),
                      ),
                    )
                  : const Text('Login'),
            ),
          ],
        ),
      ),
    );
  }

  void _handleLogin() async {
    setState(() {
      _isLoading = true;
    });

    await Future.delayed(const Duration(seconds: 2));
    
    setState(() {
      _isLoading = false;
    });

    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(content: Text('Login successful!')),
    );

    Navigator.of(context).pushNamedAndRemoveUntil('/', (route) => false);
  }
}