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Manter sessão e loading

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This commit is contained in:
240405
2026-05-08 11:53:18 +01:00
parent c1d1a0fce1
commit 490cdf5aab
5 changed files with 279 additions and 11 deletions
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5
lib/core/routing/app_router.dart
View File

@@ -126,10 +126,9 @@ class AppRouter {
),
],
// Redirect unauthenticated users to login
// Let splash screen handle all navigation logic
redirect: (context, state) {
// TODO: Implement authentication check
// For now, allow all routes
// Allow all routes - splash screen will handle authentication and navigation
return null;
},
);

29
lib/core/services/auth_service.dart
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@@ -1,4 +1,5 @@
import 'package:firebase_auth/firebase_auth.dart';
import 'session_service.dart';
/// Service for handling Firebase Authentication
class AuthService {
@@ -90,12 +91,38 @@ class AuthService {
try {
print('DEBUG: Tentando fazer logout');
await _auth.signOut();
print('DEBUG: Logout realizado com sucesso');
// Clear saved session
await SessionService.clearSession();
print('DEBUG: Logout e limpeza de sessão realizados com sucesso');
} catch (e) {
print('DEBUG: Erro ao fazer logout: $e');
}
}
/// Attempt auto-login with saved credentials
static Future<bool> attemptAutoLogin() async {
try {
final sessionData = await SessionService.shouldAutoLogin();
if (sessionData['shouldAutoLogin'] == true) {
final email = sessionData['email'];
print('DEBUG: Attempting auto-login for: $email');
// Note: For security reasons, we cannot auto-login without password
// This method just checks if auto-login is available
// The actual login still requires user to enter password
return true;
}
return false;
} catch (e) {
print('DEBUG: Error in auto-login attempt: $e');
return false;
}
}
/// Get user-friendly error message
static String _getErrorMessage(String code) {
print('DEBUG: Processando código de erro: $code');

130
lib/core/services/session_service.dart Normal file
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@@ -0,0 +1,130 @@
import 'package:shared_preferences/shared_preferences.dart';
import 'package:firebase_auth/firebase_auth.dart';
/// Service for managing persistent user sessions
class SessionService {
static const String _rememberMeKey = 'remember_me';
static const String _userEmailKey = 'user_email';
static const String _userDisplayNameKey = 'user_display_name';
static const String _lastLoginTimeKey = 'last_login_time';
/// Save session preferences when user chooses "Remember me"
static Future<void> saveSession({
required bool rememberMe,
required String email,
String? displayName,
}) async {
try {
final prefs = await SharedPreferences.getInstance();
// Save remember me preference
await prefs.setBool(_rememberMeKey, rememberMe);
if (rememberMe) {
// Save user details for auto-login
await prefs.setString(_userEmailKey, email);
if (displayName != null) {
await prefs.setString(_userDisplayNameKey, displayName);
}
await prefs.setInt(_lastLoginTimeKey, DateTime.now().millisecondsSinceEpoch);
} else {
// Clear saved session if remember me is unchecked
await clearSession();
}
print('DEBUG: Session saved - Remember me: $rememberMe, Email: $email');
} catch (e) {
print('DEBUG: Error saving session: $e');
}
}
/// Check if user should be automatically logged in
static Future<Map<String, dynamic>> shouldAutoLogin() async {
try {
final prefs = await SharedPreferences.getInstance();
final rememberMe = prefs.getBool(_rememberMeKey) ?? false;
final email = prefs.getString(_userEmailKey);
final displayName = prefs.getString(_userDisplayNameKey);
final lastLoginTime = prefs.getInt(_lastLoginTimeKey);
print('DEBUG: Auto-login check - Remember me: $rememberMe, Email: $email');
if (rememberMe && email != null) {
// Check if session is not too old (optional: 30 days)
if (lastLoginTime != null) {
final lastLogin = DateTime.fromMillisecondsSinceEpoch(lastLoginTime);
final now = DateTime.now();
final daysSinceLogin = now.difference(lastLogin).inDays;
if (daysSinceLogin <= 30) {
return {
'shouldAutoLogin': true,
'email': email,
'displayName': displayName,
};
} else {
print('DEBUG: Session too old, clearing session');
await clearSession();
}
}
}
return {'shouldAutoLogin': false};
} catch (e) {
print('DEBUG: Error checking auto-login: $e');
return {'shouldAutoLogin': false};
}
}
/// Clear saved session data
static Future<void> clearSession() async {
try {
final prefs = await SharedPreferences.getInstance();
await prefs.remove(_rememberMeKey);
await prefs.remove(_userEmailKey);
await prefs.remove(_userDisplayNameKey);
await prefs.remove(_lastLoginTimeKey);
print('DEBUG: Session cleared');
} catch (e) {
print('DEBUG: Error clearing session: $e');
}
}
/// Get current session info
static Future<Map<String, dynamic>> getCurrentSession() async {
try {
final prefs = await SharedPreferences.getInstance();
return {
'rememberMe': prefs.getBool(_rememberMeKey) ?? false,
'email': prefs.getString(_userEmailKey),
'displayName': prefs.getString(_userDisplayNameKey),
'lastLoginTime': prefs.getInt(_lastLoginTimeKey),
};
} catch (e) {
print('DEBUG: Error getting current session: $e');
return {};
}
}
/// Update session with current Firebase user
static Future<void> updateSessionWithCurrentUser() async {
try {
final user = FirebaseAuth.instance.currentUser;
if (user != null) {
final currentSession = await getCurrentSession();
if (currentSession['rememberMe'] == true) {
await saveSession(
rememberMe: true,
email: user.email ?? '',
displayName: user.displayName,
);
}
}
} catch (e) {
print('DEBUG: Error updating session with current user: $e');
}
}
}

69
lib/features/auth/presentation/pages/login_page.dart
View File

@@ -3,6 +3,7 @@ import 'package:flutter_animate/flutter_animate.dart';
import 'package:go_router/go_router.dart';
import '../../../../l10n/app_localizations.dart';
import '../../../../core/services/auth_service.dart';
import '../../../../core/services/session_service.dart';
import '../../../../shared/presentation/widgets/custom_notification.dart';
class LoginPage extends StatefulWidget {
@@ -18,6 +19,7 @@ class _LoginPageState extends State<LoginPage> {
final _passwordController = TextEditingController();
bool _isLoading = false;
bool _obscurePassword = true;
bool _rememberMe = false;
@override
void dispose() {
@@ -26,6 +28,26 @@ class _LoginPageState extends State<LoginPage> {
super.dispose();
}
@override
void initState() {
super.initState();
_loadSavedSession();
}
void _loadSavedSession() async {
try {
final sessionData = await SessionService.getCurrentSession();
if (sessionData['email'] != null) {
setState(() {
_emailController.text = sessionData['email'];
_rememberMe = sessionData['rememberMe'] ?? false;
});
}
} catch (e) {
print('DEBUG: Error loading saved session: $e');
}
}
void _handleLogin() async {
if (_formKey.currentState!.validate()) {
setState(() {
@@ -45,7 +67,16 @@ class _LoginPageState extends State<LoginPage> {
password: password,
);
print('DEBUG: Login Firebase bem-sucedido, navegando para dashboard');
print('DEBUG: Login Firebase bem-sucedido, salvando sessão');
// Save session based on remember me preference
await SessionService.saveSession(
rememberMe: _rememberMe,
email: email,
displayName: AuthService.currentUser?.displayName,
);
print('DEBUG: Sessão salva, navegando para dashboard');
// Navigate to student dashboard after successful login
if (mounted) {
@@ -282,7 +313,41 @@ class _LoginPageState extends State<LoginPage> {
return null;
},
),
const SizedBox(height: 24),
const SizedBox(height: 12),
// Remember me checkbox
Row(
children: [
Checkbox(
value: _rememberMe,
onChanged: (bool? value) {
setState(() {
_rememberMe = value ?? false;
});
},
activeColor: const Color(0xFF82C9BD),
checkColor: Colors.white,
),
GestureDetector(
onTap: () {
setState(() {
_rememberMe = !_rememberMe;
});
},
child: Text(
'Manter sessão iniciada',
style: TextStyle(
color: const Color(0xFF2D3748),
fontSize: 14,
fontWeight: _rememberMe
? FontWeight.w500
: FontWeight.normal,
),
),
),
],
),
const SizedBox(height: 12),
// Login button
SizedBox(

51
lib/features/splash/presentation/pages/splash_page.dart
View File

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
import 'package:flutter_animate/flutter_animate.dart';
import 'package:go_router/go_router.dart';
import '../../../../core/theme/app_colors.dart';
import '../../../../core/services/auth_service.dart';
import '../../../../core/services/session_service.dart';
import '../../../../l10n/app_localizations.dart';
class SplashPage extends StatefulWidget {
@@ -15,15 +17,60 @@ class _SplashPageState extends State<SplashPage> {
@override
void initState() {
super.initState();
_navigateToRoleSelection();
_checkAuthenticationAndNavigate();
}
void _navigateToRoleSelection() async {
void _checkAuthenticationAndNavigate() async {
try {
print('DEBUG: Checking authentication state...');
// Always show splash for full 3 seconds for complete animation
await Future.delayed(const Duration(seconds: 3));
// Check if user is currently authenticated
final currentUser = AuthService.currentUser;
if (currentUser != null) {
print('DEBUG: User already authenticated: ${currentUser.email}');
// Update session with current user if needed
await SessionService.updateSessionWithCurrentUser();
// Navigate to dashboard
if (mounted) {
print('DEBUG: Navigating to student dashboard');
context.go('/student-dashboard');
}
return;
}
// Check if user should be auto-logged in
final sessionData = await SessionService.shouldAutoLogin();
if (sessionData['shouldAutoLogin'] == true) {
print('DEBUG: Auto-login available for: ${sessionData['email']}');
if (mounted) {
// Navigate to login page with pre-filled data
print('DEBUG: Navigating to login for auto-login');
context.go('/login');
}
} else {
print('DEBUG: No auto-login available, going to role selection');
if (mounted) {
context.go('/role-selection');
}
}
} catch (e) {
print('DEBUG: Error in authentication check: $e');
// Fallback to role selection
if (mounted) {
context.go('/role-selection');
}
}
}
@override
Widget build(BuildContext context) {