257 lines
8.3 KiB
Dart

// ignore_for_file: use_build_context_synchronously
import 'dart:async';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:go_router/go_router.dart';
import 'package:shared_preferences/shared_preferences.dart';
import '../../app/app_cubit.dart';
import '../../app/injection_container.dart';
import '../../core/constants/app_constants.dart';
import '../../core/network/api_client.dart';
import '../../core/services/offline_queue_service.dart';
import '../../core/services/tts_service.dart';
import '../../core/services/websocket_service.dart';
import '../../core/storage/secure_storage.dart';
// ---------------------------------------------------------------------------
// LoginScreen
// ---------------------------------------------------------------------------
class LoginScreen extends StatefulWidget {
const LoginScreen({super.key});
@override
State<LoginScreen> createState() => _LoginScreenState();
}
class _LoginScreenState extends State<LoginScreen> {
final _email = TextEditingController();
final _password = TextEditingController();
bool _loading = false;
bool _showPassword = false;
@override
void initState() {
super.initState();
_loadPendingLoginEmail();
}
@override
void dispose() {
_email.dispose();
_password.dispose();
super.dispose();
}
Future<void> _loadPendingLoginEmail() async {
final prefs = await SharedPreferences.getInstance();
final pendingEmail = prefs.getString('pending_login_email');
if (!mounted) return;
setState(() {
if (pendingEmail != null && pendingEmail.isNotEmpty) {
_email.text = pendingEmail;
}
});
await prefs.remove('pending_login_email');
}
Future<void> _login() async {
if (_email.text.trim().isEmpty || _password.text.isEmpty) {
_snack(context, 'Isi email dan password dulu.');
return;
}
setState(() => _loading = true);
try {
final res = await sl<ApiClient>().dio.post('/auth/login', data: {
'email': _email.text.trim(),
'password': _password.text,
});
await _saveAuthAndRoute(
context, Map<String, dynamic>.from(res.data['data'] as Map));
} on DioException catch (e) {
_snack(context, _friendlyDioMessage(e, fallback: 'Login gagal'));
} catch (e) {
_snack(context, 'Login gagal: $e');
} finally {
if (mounted) setState(() => _loading = false);
}
}
@override
Widget build(BuildContext context) {
return _AuthFrame(
title: 'Sign in',
subtitle: 'Masuk sebagai Guardian atau User.',
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
TextField(
controller: _email,
keyboardType: TextInputType.emailAddress,
textInputAction: TextInputAction.next,
decoration: const InputDecoration(
labelText: 'Email',
prefixIcon: Icon(Icons.email_outlined),
)),
const SizedBox(height: 12),
TextField(
controller: _password,
obscureText: !_showPassword,
textInputAction: TextInputAction.done,
onSubmitted: (_) => _login(),
decoration: InputDecoration(
labelText: 'Password',
prefixIcon: const Icon(Icons.lock_outline),
suffixIcon: IconButton(
icon: Icon(
_showPassword ? Icons.visibility_off : Icons.visibility),
onPressed: () =>
setState(() => _showPassword = !_showPassword),
),
)),
const SizedBox(height: 18),
FilledButton.icon(
onPressed: _loading ? null : _login,
icon: _loading
? const SizedBox(
width: 18,
height: 18,
child: CircularProgressIndicator(strokeWidth: 2))
: const Icon(Icons.login),
label: const Text('Login'),
),
TextButton(
onPressed: () => context.go('/register'),
child: const Text('Buat akun baru')),
],
),
);
}
}
// ---------------------------------------------------------------------------
// Shared private widgets
// ---------------------------------------------------------------------------
class _AuthFrame extends StatelessWidget {
final String title;
final String subtitle;
final Widget child;
const _AuthFrame(
{required this.title, required this.subtitle, required this.child});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: SingleChildScrollView(
padding: const EdgeInsets.all(24),
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 460),
child: Card(
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(18),
side: const BorderSide(color: Color(0xFFE2E8F0))),
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
const Icon(Icons.navigation_rounded,
color: Color(0xFF1A56DB), size: 42),
const SizedBox(height: 14),
Text(title,
textAlign: TextAlign.center,
style: Theme.of(context)
.textTheme
.headlineSmall
?.copyWith(fontWeight: FontWeight.w800)),
const SizedBox(height: 4),
Text(subtitle,
textAlign: TextAlign.center,
style: const TextStyle(color: Color(0xFF64748B))),
const SizedBox(height: 22),
child,
],
),
),
),
),
),
),
);
}
}
// ---------------------------------------------------------------------------
// Helpers (shared for login flow)
// ---------------------------------------------------------------------------
Future<void> _saveAuthAndRoute(
BuildContext context, Map<String, dynamic> data) async {
await sl<SecureStorage>().saveTokens(
accessToken: data['accessToken'],
refreshToken: data['refreshToken'],
role: data['role'],
userId: data['userId'].toString(),
displayName: data['displayName'],
uniqueUserId: data['uniqueUserId'],
);
final serverUrl = await AppConstants.getServerUrl();
if (serverUrl != null) {
context
.read<AppCubit>()
.setSession(role: data['role'], serverUrl: serverUrl);
_startPostLoginServices(serverUrl);
}
sl<TtsService>().speak('Selamat datang ${data['displayName'] ?? ''}');
if (context.mounted) {
context.go(data['role'] == 'ROLE_GUARDIAN'
? '/guardian/dashboard'
: '/user/walkguide');
}
}
void _startPostLoginServices(String serverUrl) {
Future.microtask(() async {
try {
await sl<WebSocketService>()
.connect(serverUrl)
.timeout(const Duration(seconds: 2));
await sl<OfflineQueueService>()
.syncPending(sl<ApiClient>())
.timeout(const Duration(seconds: 3));
} catch (e) {
debugPrint('Post-login services skipped: $e');
}
});
}
void _snack(BuildContext context, String message) {
if (context.mounted) {
ScaffoldMessenger.of(context)
.showSnackBar(SnackBar(content: Text(message)));
}
}
String _friendlyDioMessage(DioException e, {required String fallback}) {
final data = e.response?.data;
if (data is Map && data['message'] != null) return data['message'].toString();
if (e.response?.statusCode == 401) {
return 'Email atau password salah.';
}
if (e.type == DioExceptionType.connectionTimeout ||
e.type == DioExceptionType.receiveTimeout) {
return 'Server terlalu lama merespons. Pastikan backend masih running dan URL server benar.';
}
if (e.type == DioExceptionType.connectionError) {
return 'Tidak bisa ke server. Di Chrome pakai http://localhost:8080. Di HP pakai IP laptop/server, bukan localhost.';
}
return fallback;
}