main.dart

import 'package:flutter/material.dart';
import 'package:supabase_flutter/supabase_flutter.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Supabase.initialize(
    url: 'https://xbjamkmhhisvqmuejlyo.supabase.co',
    anonKey: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InhiamFta21oaGlzdnFtdWVqbHlvIiwicm9sZSI6ImFub24iLCJpYXQiOjE3Njc5MzYxNjIsImV4cCI6MjA4MzUxMjE2Mn0.7zTQFG-YnL9xtGglMxhYkMYO87kRQ_2P6Y7QMePR0Ck',
  );
  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Supabase Auth Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: AuthPage(),
    );
  }
}

// ---------------- AUTH PAGE ----------------
class AuthPage extends StatefulWidget {
  @override
  _AuthPageState createState() => _AuthPageState();
}

class _AuthPageState extends State<AuthPage> {
  final emailController = TextEditingController();
  final passwordController = TextEditingController();

  Future<void> login() async {
    try {
      final response = await Supabase.instance.client.auth.signInWithPassword(
        email: emailController.text.trim(),
        password: passwordController.text.trim(),
      );
      if (response.user != null) {
        Navigator.pushReplacement(
          context,
          MaterialPageRoute(builder: (context) => const HomePage()),
        );
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text("Login failed: $e")),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text("Login")),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            TextField(controller: emailController, decoration: const InputDecoration(labelText: "Email")),
            TextField(controller: passwordController, decoration: const InputDecoration(labelText: "Password"), obscureText: true),
            const SizedBox(height: 20),
            ElevatedButton(onPressed: login, child: const Text("Login")),
            ElevatedButton(
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => SignupPage()),
                );
              },
              child: const Text("Signup"),
            ),
          ],
        ),
      ),
    );
  }
}

// ---------------- SIGNUP PAGE ----------------
class SignupPage extends StatefulWidget {
  @override
  _SignupPageState createState() => _SignupPageState();
}

class _SignupPageState extends State<SignupPage> {
  final emailController = TextEditingController();
  final passwordController = TextEditingController();

  Future<void> signUp() async {
    try {
      final response = await Supabase.instance.client.auth.signUp(
        email: emailController.text.trim(),
        password: passwordController.text.trim(),
      );
      if (response.user != null) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text("Signup successful! Please check your email.")),
        );
        Navigator.pushReplacement(
          context,
          MaterialPageRoute(builder: (context) => const HomePage()),
        );
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text("Signup failed: $e")),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text("Signup")),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            TextField(controller: emailController, decoration: const InputDecoration(labelText: "Email")),
            TextField(controller: passwordController, decoration: const InputDecoration(labelText: "Password"), obscureText: true),
            const SizedBox(height: 20),
            ElevatedButton(onPressed: signUp, child: const Text("Create Account")),
          ],
        ),
      ),
    );
  }
}

// ---------------- HOME PAGE ----------------
class HomePage extends StatelessWidget {
  const HomePage({super.key});

  Future<void> _logout(BuildContext context) async {
    await Supabase.instance.client.auth.signOut();
    Navigator.pushReplacement(
      context,
      MaterialPageRoute(builder: (context) => AuthPage()),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Home"),
        actions: [
          IconButton(icon: const Icon(Icons.logout), onPressed: () => _logout(context)),
        ],
      ),
      body: const Center(child: Text("Welcome! You are logged in.")),
    );
  }
}