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

class AuthProvider with ChangeNotifier {
  final FirebaseAuth _firebaseAuth;

  AuthProvider(this._firebaseAuth);

  Stream<User?> get authStateChanges => _firebaseAuth.authStateChanges();

  Future<bool> signIn({
    required String email,
    required String password,
    required BuildContext context,
  }) async {
    try {
      await _firebaseAuth.signInWithEmailAndPassword(
        email: email,
        password: password,
      );
      return true;
    } on FirebaseAuthException catch (e) {
      _showErrorDialog(context, e.message!);
      return false;
    }
  }

  Future<bool> register({
    required String email,
    required String password,
    required String displayName, // Tambahkan parameter displayName
    required BuildContext context,
  }) async {
    try {
      UserCredential userCredential =
          await _firebaseAuth.createUserWithEmailAndPassword(
        email: email,
        password: password,
      );
      if (userCredential.user != null) {
        await userCredential.user!.updateDisplayName(displayName);
        await userCredential.user!.reload();
      }
      return true; // Registrasi berhasil
    } on FirebaseAuthException catch (e) {
      _showErrorDialog(context, e.message!);
      return false; // Registrasi gagal
    }
  }

  Future<void> signOut() async {
    await _firebaseAuth.signOut();
  }

  void _showErrorDialog(BuildContext context, String message) {
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('Error'),
        content: Text(message),
        actions: [
          TextButton(
            onPressed: () {
              Navigator.of(context).pop();
            },
            child: const Text('OK'),
          ),
        ],
      ),
    );
  }
}