Manter sessão e loading

lib/features/splash/presentation/pages/splash_page.dart

@@ -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 {
@@ -15,13 +17,58 @@ class _SplashPageState extends State<SplashPage> {
   @override
   void initState() {
     super.initState();
-    _navigateToRoleSelection();
+    _checkAuthenticationAndNavigate();
   }
 
-  void _navigateToRoleSelection() async {
-    await Future.delayed(const Duration(seconds: 3));
-    if (mounted) {
-      context.go('/role-selection');
+  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');
+      }
     }
   }