E32221362_BeramalBaik/lib/services/auth_service.dart

115 lines
3.6 KiB
Dart

import 'package:flutter/material.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
class AuthService {
final FirebaseAuth _auth = FirebaseAuth.instance;
final FirebaseFirestore _firestore = FirebaseFirestore.instance;
// 🔐 Register dengan username & password
Future<String?> register(String username, String password) async {
try {
final email = '$username@beramalbaik.com';
// Cek apakah username sudah dipakai
final userDoc = await _firestore.collection('users').doc(username).get();
if (userDoc.exists) return 'Username sudah dipakai';
// Register user di Firebase Auth
UserCredential userCredential = await _auth.createUserWithEmailAndPassword(
email: email,
password: password,
);
// Tunggu sejenak
await Future.delayed(const Duration(seconds: 1));
// Validasi user aktif
if (_auth.currentUser == null) {
return 'Terjadi kesalahan saat autentikasi. Coba lagi.';
}
// Simpan user ke Firestore
await _firestore.collection('users').doc(username).set({
'username': username,
'uid': userCredential.user?.uid,
'createdAt': FieldValue.serverTimestamp(),
});
return null; // sukses
} on FirebaseAuthException catch (e) {
return e.message;
} catch (e) {
return 'Terjadi kesalahan: ${e.toString()}';
}
}
// 🔓 Login dengan username & password
Future<String?> login(String username, String password) async {
try {
final email = '$username@beramalbaik.com';
await _auth.signInWithEmailAndPassword(email: email, password: password);
return null;
} on FirebaseAuthException catch (e) {
return e.message;
}
}
// 🚪 Logout dengan dialog konfirmasi yang estetik
Future<void> logout(BuildContext context) async {
final shouldLogout = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
titlePadding: const EdgeInsets.only(top: 24),
contentPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
title: Column(
children: const [
Icon(Icons.logout, size: 48, color: Colors.red),
SizedBox(height: 12),
Text(
"Konfirmasi Logout",
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
color: Colors.black87,
),
textAlign: TextAlign.center,
),
],
),
content: const Text(
"Apakah kamu yakin ingin keluar dari akun?",
style: TextStyle(fontSize: 16),
textAlign: TextAlign.center,
),
actionsAlignment: MainAxisAlignment.spaceEvenly,
actions: [
TextButton(
style: TextButton.styleFrom(
foregroundColor: Colors.grey[700],
),
onPressed: () => Navigator.of(context).pop(false),
child: const Text("Batal"),
),
ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.red[600],
foregroundColor: Colors.white,
),
onPressed: () => Navigator.of(context).pop(true),
child: const Text("Logout"),
),
],
),
);
if (shouldLogout == true) {
await _auth.signOut();
if (context.mounted) {
Navigator.pushReplacementNamed(context, '/login');
}
}
}
}