correção de bugs, creação propria para turmas, e preparação para criar quizzes

lib/core/routing/app_router.dart

@@ -58,14 +58,16 @@ class AppRouter {
       GoRoute(
         path: login,
         name: 'login',
-        builder: (context, state) => const LoginPage(),
+        builder: (context, state) =>
+            LoginPage(selectedRole: state.uri.queryParameters['role']),
       ),
 
       // Signup
       GoRoute(
         path: signup,
         name: 'signup',
-        builder: (context, state) => const SignupPage(),
+        builder: (context, state) =>
+            SignupPage(selectedRole: state.uri.queryParameters['role']),
       ),
 
       // Student Dashboard

lib/core/services/auth_service.dart

@@ -13,13 +13,29 @@ class AuthService {
   }
 
   /// Criar documento do usuário na Firestore após signup
-  static Future<void> createUserRole(String uid, String role) async {
+  static Future<void> createUserRole(
+    String uid,
+    String role, {
+    String? classId,
+    String? schoolClassId,
+    String? displayName,
+  }) async {
     try {
       print('DEBUG: Criando documento users/$uid com role: $role');
-      await _firestore.collection('users').doc(uid).set({
+      final Map<String, dynamic> data = {
         'role': role,
         'createdAt': FieldValue.serverTimestamp(),
-      });
+      };
+      if (classId != null && classId.isNotEmpty) {
+        data['classId'] = classId;
+      }
+      if (schoolClassId != null && schoolClassId.isNotEmpty) {
+        data['schoolClassId'] = schoolClassId;
+      }
+      if (displayName != null && displayName.isNotEmpty) {
+        data['displayName'] = displayName;
+      }
+      await _firestore.collection('users').doc(uid).set(data);
       print('DEBUG: Documento criado com sucesso');
     } catch (e) {
       print('DEBUG: Erro ao criar documento: $e');
@@ -27,6 +43,53 @@ class AuthService {
     }
   }
 
+  /// Criar inscrição do aluno na turma escolhida
+  static Future<void> createEnrollment({
+    required String studentId,
+    required String classId,
+    required String studentName,
+  }) async {
+    try {
+      print(
+        'DEBUG: Criando enrollment para student=$studentId, class=$classId',
+      );
+      final existing = await _firestore
+          .collection('enrollments')
+          .where('studentId', isEqualTo: studentId)
+          .where('classId', isEqualTo: classId)
+          .limit(1)
+          .get();
+      if (existing.docs.isNotEmpty) {
+        print('DEBUG: Enrollment já existe, ignorando');
+        return;
+      }
+      await _firestore.collection('enrollments').add({
+        'classId': classId,
+        'studentId': studentId,
+        'studentName': studentName,
+        'joinedAt': FieldValue.serverTimestamp(),
+      });
+      print('DEBUG: Enrollment criado com sucesso');
+    } catch (e) {
+      print('DEBUG: Erro ao criar enrollment: $e');
+      throw Exception('Erro ao associar aluno à turma');
+    }
+  }
+
+  /// Ler classId do aluno na Firestore
+  static Future<String?> getStudentClassId(String uid) async {
+    try {
+      final doc = await _firestore.collection('users').doc(uid).get();
+      if (doc.exists) {
+        return doc.data()?['classId'] as String?;
+      }
+      return null;
+    } catch (e) {
+      print('DEBUG: Erro ao ler classId: $e');
+      return null;
+    }
+  }
+
   /// Ler role do usuário na Firestore
   static Future<String?> getUserRole(String uid) async {
     try {
@@ -56,6 +119,8 @@ class AuthService {
     required String password,
     String? displayName,
     String? role,
+    String? classId,
+    String? schoolClassId,
   }) async {
     try {
       print('DEBUG: Tentando criar conta para email: $email');
@@ -76,9 +141,15 @@ class AuthService {
         print('DEBUG: Display name atualizado para: $displayName');
       }
 
-      // Criar documento na Firestore com role
+      // Criar documento na Firestore com role (e classId se aluno)
       if (role != null && result.user != null) {
-        await createUserRole(result.user!.uid, role);
+        await createUserRole(
+          result.user!.uid,
+          role,
+          classId: classId,
+          schoolClassId: schoolClassId,
+          displayName: displayName,
+        );
       }
 
       // Verificar se o email foi verificado

lib/features/auth/presentation/pages/login_page.dart

@@ -81,12 +81,22 @@ class _LoginPageState extends State<LoginPage> {
         final actualRole = await AuthService.getUserRole(uid);
         print('DEBUG: Role real do usuário na Firestore: $actualRole');
 
-        // Validar se o role selecionado corresponde ao role real
+        // Se não há role selecionado, redirecionar para role-selection
         final selectedRole = widget.selectedRole;
-        if (selectedRole != null &&
+        if (selectedRole == null) {
-            actualRole != null &&
+          await AuthService.signOut();
-            selectedRole != actualRole) {
+          if (mounted) {
-          // Role não corresponde - mostrar erro
+            setState(() => _isLoading = false);
+            context.go('/role-selection');
+          }
+          return;
+        }
+
+        // Validar se o role selecionado corresponde ao role real
+        if (actualRole != null && selectedRole != actualRole) {
+          // Fazer logout imediato antes de mostrar erro
+          await AuthService.signOut();
+
           setState(() {
             _isLoading = false;
           });
@@ -171,8 +181,7 @@ class _LoginPageState extends State<LoginPage> {
             TextButton(
               onPressed: () {
                 Navigator.of(context).pop();
-                // Fazer logout para limpar a sessão
+                context.go('/role-selection');
-                AuthService.signOut();
               },
               child: Text(
                 'Voltar',

lib/features/auth/presentation/pages/signup_page.dart

@@ -1,3 +1,4 @@
+import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
 import 'package:go_router/go_router.dart';
@@ -22,12 +23,39 @@ class _SignupPageState extends State<SignupPage> {
   bool _isLoading = false;
   bool _obscurePassword = true;
   late String _selectedRole;
+  String? _selectedSchoolClassId;
+  List<Map<String, String>> _availableClasses = [];
+  bool _isLoadingClasses = false;
 
   @override
   void initState() {
     super.initState();
     // Usar role passado da tela anterior ou default 'student'
     _selectedRole = widget.selectedRole ?? 'student';
+    if (_selectedRole == 'student') {
+      _loadAvailableClasses();
+    }
+  }
+
+  Future<void> _loadAvailableClasses() async {
+    setState(() => _isLoadingClasses = true);
+    try {
+      final snapshot = await FirebaseFirestore.instance
+          .collection('school_classes')
+          .where('active', isEqualTo: true)
+          .orderBy('year')
+          .orderBy('section')
+          .get();
+      setState(() {
+        _availableClasses = snapshot.docs.map((doc) {
+          final data = doc.data();
+          return {'id': doc.id, 'name': (data['name'] as String? ?? doc.id)};
+        }).toList();
+        _isLoadingClasses = false;
+      });
+    } catch (e) {
+      setState(() => _isLoadingClasses = false);
+    }
   }
 
   @override
@@ -38,6 +66,99 @@ class _SignupPageState extends State<SignupPage> {
     super.dispose();
   }
 
+  Widget _buildClassSelector(BuildContext context) {
+    if (_isLoadingClasses) {
+      return Padding(
+        padding: const EdgeInsets.symmetric(vertical: 8.0),
+        child: Row(
+          children: [
+            SizedBox(
+              width: 18,
+              height: 18,
+              child: CircularProgressIndicator(
+                strokeWidth: 2,
+                color: Theme.of(context).colorScheme.primary,
+              ),
+            ),
+            const SizedBox(width: 12),
+            Text(
+              'A carregar turmas...',
+              style: TextStyle(
+                color: Theme.of(context).colorScheme.onSurfaceVariant,
+                fontSize: 14,
+              ),
+            ),
+          ],
+        ),
+      );
+    }
+
+    if (_availableClasses.isEmpty) {
+      return Padding(
+        padding: const EdgeInsets.symmetric(vertical: 8.0),
+        child: Text(
+          'Nenhuma turma disponível. Contacta o teu professor.',
+          style: TextStyle(
+            color: Theme.of(context).colorScheme.error,
+            fontSize: 13,
+          ),
+        ),
+      );
+    }
+
+    return DropdownButtonFormField<String>(
+      value: _selectedSchoolClassId,
+      isExpanded: true,
+      decoration: InputDecoration(
+        labelText: 'Turma',
+        labelStyle: TextStyle(color: Theme.of(context).colorScheme.onSurface),
+        enabledBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.0),
+          borderSide: BorderSide(
+            color: Theme.of(context).colorScheme.outline.withOpacity(0.3),
+          ),
+        ),
+        focusedBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.0),
+          borderSide: BorderSide(color: Theme.of(context).colorScheme.primary),
+        ),
+        errorBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.0),
+          borderSide: BorderSide(color: Theme.of(context).colorScheme.error),
+        ),
+        focusedErrorBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.0),
+          borderSide: BorderSide(color: Theme.of(context).colorScheme.error),
+        ),
+        filled: true,
+        fillColor: Theme.of(context).brightness == Brightness.dark
+            ? Theme.of(context).colorScheme.surfaceContainerHighest
+            : Theme.of(context).colorScheme.surface,
+      ),
+      style: TextStyle(color: Theme.of(context).colorScheme.onSurface),
+      dropdownColor: Theme.of(context).colorScheme.surface,
+      hint: Text(
+        'Seleciona a tua turma',
+        style: TextStyle(color: Theme.of(context).colorScheme.onSurfaceVariant),
+      ),
+      items: _availableClasses
+          .map(
+            (c) => DropdownMenuItem<String>(
+              value: c['id'],
+              child: Text(c['name']!),
+            ),
+          )
+          .toList(),
+      onChanged: (value) => setState(() => _selectedSchoolClassId = value),
+      validator: (value) {
+        if (value == null || value.isEmpty) {
+          return 'Seleciona a tua turma';
+        }
+        return null;
+      },
+    );
+  }
+
   Future<void> _handleSignup() async {
     if (!_formKey.currentState!.validate()) return;
 
@@ -60,6 +181,9 @@ class _SignupPageState extends State<SignupPage> {
         password: password,
         displayName: name,
         role: _selectedRole,
+        schoolClassId: _selectedRole == 'student'
+            ? _selectedSchoolClassId
+            : null,
       );
 
       print('DEBUG: Signup Firebase bem-sucedido, navegando para dashboard');
@@ -295,6 +419,12 @@ class _SignupPageState extends State<SignupPage> {
                                 ),
                                 const SizedBox(height: 16),
 
+                                // Seletor de turma (apenas para alunos)
+                                if (_selectedRole == 'student') ...[
+                                  _buildClassSelector(context),
+                                  const SizedBox(height: 16),
+                                ],
+
                                 // Email field
                                 TextFormField(
                                   controller: _emailController,

lib/features/classes/presentation/pages/class_students_page.dart

@@ -1,9 +1,10 @@
 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
+import '../../../../core/services/auth_service.dart';
 
 /// Página para visualizar os alunos de uma turma específica
-class ClassStudentsPage extends StatelessWidget {
+class ClassStudentsPage extends StatefulWidget {
   final String classId;
   final String className;
 
@@ -13,8 +14,110 @@ class ClassStudentsPage extends StatelessWidget {
     required this.className,
   });
 
+  @override
+  State<ClassStudentsPage> createState() => _ClassStudentsPageState();
+}
+
+class _ClassStudentsPageState extends State<ClassStudentsPage> {
+  bool _isCheckingAccess = true;
+  bool _accessGranted = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _verifyOwnership();
+  }
+
+  Future<void> _verifyOwnership() async {
+    final currentUser = AuthService.currentUser;
+    if (currentUser == null) {
+      setState(() {
+        _isCheckingAccess = false;
+        _accessGranted = false;
+      });
+      return;
+    }
+
+    final role = await AuthService.getUserRole(currentUser.uid);
+    if (role != 'teacher') {
+      setState(() {
+        _isCheckingAccess = false;
+        _accessGranted = false;
+      });
+      return;
+    }
+
+    final classDoc = await FirebaseFirestore.instance
+        .collection('classes')
+        .doc(widget.classId)
+        .get();
+
+    final teacherId = classDoc.data()?['teacherId'] as String?;
+    setState(() {
+      _isCheckingAccess = false;
+      _accessGranted = classDoc.exists && teacherId == currentUser.uid;
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
+    if (_isCheckingAccess) {
+      return const Scaffold(
+        backgroundColor: Color(0xFFF8F9FA),
+        body: Center(
+          child: CircularProgressIndicator(color: Color(0xFF82C9BD)),
+        ),
+      );
+    }
+
+    if (!_accessGranted) {
+      return Scaffold(
+        backgroundColor: const Color(0xFFF8F9FA),
+        appBar: AppBar(
+          backgroundColor: const Color(0xFF82C9BD),
+          elevation: 0,
+          leading: IconButton(
+            icon: const Icon(Icons.arrow_back, color: Colors.white),
+            onPressed: () => Navigator.of(context).pop(),
+          ),
+          title: const Text(
+            'Acesso Negado',
+            style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
+          ),
+        ),
+        body: Center(
+          child: Padding(
+            padding: const EdgeInsets.all(32.0),
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                const Icon(
+                  Icons.lock_outline,
+                  size: 64,
+                  color: Color(0xFF82C9BD),
+                ),
+                const SizedBox(height: 24),
+                const Text(
+                  'Sem permissão',
+                  style: TextStyle(
+                    color: Color(0xFF2D3748),
+                    fontSize: 20,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+                const SizedBox(height: 12),
+                Text(
+                  'Só podes ver os alunos das tuas próprias turmas.',
+                  style: TextStyle(color: Colors.grey[600], fontSize: 14),
+                  textAlign: TextAlign.center,
+                ),
+              ],
+            ),
+          ),
+        ),
+      );
+    }
+
     return Scaffold(
       backgroundColor: const Color(0xFFF8F9FA),
       appBar: AppBar(
@@ -28,7 +131,7 @@ class ClassStudentsPage extends StatelessWidget {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Text(
-              className,
+              widget.className,
               style: const TextStyle(
                 color: Colors.white,
                 fontSize: 18,
@@ -49,15 +152,13 @@ class ClassStudentsPage extends StatelessWidget {
       body: StreamBuilder<QuerySnapshot>(
         stream: FirebaseFirestore.instance
             .collection('enrollments')
-            .where('classId', isEqualTo: classId)
+            .where('classId', isEqualTo: widget.classId)
             .orderBy('joinedAt', descending: true)
             .snapshots(),
         builder: (context, snapshot) {
           if (snapshot.connectionState == ConnectionState.waiting) {
             return const Center(
-              child: CircularProgressIndicator(
+              child: CircularProgressIndicator(color: Color(0xFF82C9BD)),
-                color: Color(0xFF82C9BD),
-              ),
             );
           }
 
@@ -66,18 +167,11 @@ class ClassStudentsPage extends StatelessWidget {
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,
                 children: [
-                  Icon(
+                  Icon(Icons.error_outline, size: 48, color: Colors.grey[400]),
-                    Icons.error_outline,
-                    size: 48,
-                    color: Colors.grey[400],
-                  ),
                   const SizedBox(height: 16),
                   Text(
                     'Erro ao carregar alunos',
-                    style: TextStyle(
+                    style: TextStyle(color: Colors.grey[600], fontSize: 16),
-                      color: Colors.grey[600],
-                      fontSize: 16,
-                    ),
                   ),
                 ],
               ),
@@ -91,18 +185,11 @@ class ClassStudentsPage extends StatelessWidget {
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,
                 children: [
-                  Icon(
+                  Icon(Icons.people_outline, size: 64, color: Colors.grey[300]),
-                    Icons.people_outline,
-                    size: 64,
-                    color: Colors.grey[300],
-                  ),
                   const SizedBox(height: 24),
                   Text(
                     'Nenhum aluno entrou nesta turma ainda.',
-                    style: TextStyle(
+                    style: TextStyle(color: Colors.grey[600], fontSize: 16),
-                      color: Colors.grey[600],
-                      fontSize: 16,
-                    ),
                     textAlign: TextAlign.center,
                   ),
                   const SizedBox(height: 8),
@@ -110,10 +197,7 @@ class ClassStudentsPage extends StatelessWidget {
                     padding: const EdgeInsets.symmetric(horizontal: 32.0),
                     child: Text(
                       'Partilha o código da turma para os alunos se juntarem.',
-                      style: TextStyle(
+                      style: TextStyle(color: Colors.grey[500], fontSize: 13),
-                        color: Colors.grey[500],
-                        fontSize: 13,
-                      ),
                       textAlign: TextAlign.center,
                     ),
                   ),
@@ -126,8 +210,10 @@ class ClassStudentsPage extends StatelessWidget {
             padding: const EdgeInsets.all(16.0),
             itemCount: enrollments.length,
             itemBuilder: (context, index) {
-              final enrollment = enrollments[index].data() as Map<String, dynamic>;
+              final enrollment =
-              final studentName = enrollment['studentName'] as String? ?? 'Aluno sem nome';
+                  enrollments[index].data() as Map<String, dynamic>;
+              final studentName =
+                  enrollment['studentName'] as String? ?? 'Aluno sem nome';
               final joinedAt = enrollment['joinedAt'] as Timestamp?;
 
               return Container(
@@ -174,10 +260,7 @@ class ClassStudentsPage extends StatelessWidget {
                         joinedAt != null
                             ? 'Entrou em ${_formatDate(joinedAt.toDate())}'
                             : 'Data desconhecida',
-                        style: TextStyle(
+                        style: TextStyle(color: Colors.grey[600], fontSize: 13),
-                          color: Colors.grey[600],
-                          fontSize: 13,
-                        ),
                       ),
                     ],
                   ),

lib/features/classes/presentation/pages/join_class_page.dart

@@ -31,6 +31,27 @@ class _JoinClassPageState extends State<JoinClassPage> {
     setState(() => _isLoading = true);
 
     try {
+      final currentUser = AuthService.currentUser;
+
+      if (currentUser == null) {
+        setState(() => _isLoading = false);
+        _showError('Erro: Utilizador não autenticado');
+        return;
+      }
+
+      // Verificar role — apenas alunos podem entrar por código
+      final userRole = await AuthService.getUserRole(currentUser.uid);
+      if (userRole != 'student') {
+        setState(() => _isLoading = false);
+        _showError('Apenas alunos podem entrar em turmas por código.');
+        return;
+      }
+
+      // Ler classId autorizado do aluno (definido no registo)
+      final authorizedClassId = await AuthService.getStudentClassId(
+        currentUser.uid,
+      );
+
       // Procurar turma pelo código
       final classQuery = await FirebaseFirestore.instance
           .collection('classes')
@@ -46,11 +67,14 @@ class _JoinClassPageState extends State<JoinClassPage> {
 
       final classDoc = classQuery.docs.first;
       final classId = classDoc.id;
-      final currentUser = AuthService.currentUser;
 
-      if (currentUser == null) {
+      // Verificar se o aluno está autorizado a entrar nesta turma
+      if (authorizedClassId == null || authorizedClassId != classId) {
         setState(() => _isLoading = false);
-        _showError('Erro: Utilizador não autenticado');
+        _showError(
+          'Não tens permissão para entrar nesta turma.\n'
+          'O teu professor ainda não te adicionou a esta disciplina.',
+        );
         return;
       }
 
@@ -72,7 +96,10 @@ class _JoinClassPageState extends State<JoinClassPage> {
       await FirebaseFirestore.instance.collection('enrollments').add({
         'classId': classId,
         'studentId': currentUser.uid,
-        'studentName': currentUser.displayName ?? currentUser.email?.split('@')[0] ?? 'Aluno',
+        'studentName':
+            currentUser.displayName ??
+            currentUser.email?.split('@')[0] ??
+            'Aluno',
         'joinedAt': FieldValue.serverTimestamp(),
       });
 
@@ -163,10 +190,7 @@ class _JoinClassPageState extends State<JoinClassPage> {
             Center(
               child: Text(
                 'O professor partilhou contigo um código de 6 caracteres.',
-                style: TextStyle(
+                style: TextStyle(color: Colors.grey[600], fontSize: 14),
-                  color: Colors.grey[600],
-                  fontSize: 14,
-                ),
                 textAlign: TextAlign.center,
               ),
             ),
@@ -219,7 +243,9 @@ class _JoinClassPageState extends State<JoinClassPage> {
                   shape: RoundedRectangleBorder(
                     borderRadius: BorderRadius.circular(12),
                   ),
-                  disabledBackgroundColor: const Color(0xFF82C9BD).withOpacity(0.5),
+                  disabledBackgroundColor: const Color(
+                    0xFF82C9BD,
+                  ).withOpacity(0.5),
                 ),
                 child: _isLoading
                     ? const SizedBox(

lib/features/classes/presentation/pages/teacher_all_classes_page.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+import '../../../dashboard/presentation/widgets/teacher_classes_list_widget.dart';
+
+/// Página dedicada para o professor ver todas as suas turmas
+/// Reutiliza o TeacherClassesListWidget existente
+class TeacherAllClassesPage extends StatelessWidget {
+  const TeacherAllClassesPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: const Color(0xFFF8F9FA),
+      appBar: AppBar(
+        backgroundColor: const Color(0xFF82C9BD),
+        elevation: 0,
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back, color: Colors.white),
+          onPressed: () => Navigator.of(context).pop(),
+        ),
+        title: const Text(
+          'As Minhas Turmas',
+          style: TextStyle(
+            color: Colors.white,
+            fontSize: 18,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+      ),
+      body: const SingleChildScrollView(
+        padding: EdgeInsets.all(24.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            TeacherClassesListWidget(),
+            SizedBox(height: 40),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/features/dashboard/presentation/pages/student_dashboard_page.dart

@@ -19,14 +19,23 @@ class _StudentDashboardPageState extends State<StudentDashboardPage> {
   @override
   void initState() {
     super.initState();
-    _loadUserData();
+    _checkRoleAndLoadData();
   }
 
-  @override
+  Future<void> _checkRoleAndLoadData() async {
-  void didChangeDependencies() {
+    final user = AuthService.currentUser;
-    super.didChangeDependencies();
+    if (user == null) {
-    // Reload user data when dependencies change (e.g., after navigation)
+      if (mounted) context.go('/role-selection');
-    _loadUserData();
+      return;
+    }
+    final role = await AuthService.getUserRole(user.uid);
+    if (role != 'student') {
+      if (mounted) {
+        context.go('/role-selection');
+      }
+      return;
+    }
+    await _loadUserData();
   }
 
   Future<void> _loadUserData() async {

lib/features/dashboard/presentation/pages/teacher_dashboard_page.dart

@@ -19,13 +19,23 @@ class _TeacherDashboardPageState extends State<TeacherDashboardPage> {
   @override
   void initState() {
     super.initState();
-    _loadUserData();
+    _checkRoleAndLoadData();
   }
 
-  @override
+  Future<void> _checkRoleAndLoadData() async {
-  void didChangeDependencies() {
+    final user = AuthService.currentUser;
-    super.didChangeDependencies();
+    if (user == null) {
-    _loadUserData();
+      if (mounted) context.go('/role-selection');
+      return;
+    }
+    final role = await AuthService.getUserRole(user.uid);
+    if (role != 'teacher') {
+      if (mounted) {
+        context.go('/role-selection');
+      }
+      return;
+    }
+    await _loadUserData();
   }
 
   Future<void> _loadUserData() async {

lib/features/dashboard/presentation/widgets/teacher_analytics_preview_widget.dart

@@ -288,6 +288,8 @@ class TeacherAnalyticsPreviewWidget extends StatelessWidget {
               label,
               style: TextStyle(color: color.withOpacity(0.8), fontSize: 10),
               textAlign: TextAlign.center,
+              maxLines: 2,
+              overflow: TextOverflow.ellipsis,
             ),
           ],
         ),

lib/features/dashboard/presentation/widgets/teacher_hero_widget.dart

@@ -34,18 +34,22 @@ class TeacherHeroWidget extends StatelessWidget {
                   children: [
                     Text(
                       'Visão Geral da Turma',
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
                       style: TextStyle(
                         color: Theme.of(context).colorScheme.onSurface,
-                        fontSize: 24,
+                        fontSize: 20,
                         fontWeight: FontWeight.bold,
                       ),
                     ),
                     const SizedBox(height: 4),
                     Text(
                       'Acompanhe o progresso dos seus alunos',
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
                       style: TextStyle(
                         color: Theme.of(context).colorScheme.onSurfaceVariant,
-                        fontSize: 16,
+                        fontSize: 13,
                       ),
                     ),
                   ],
@@ -108,14 +112,18 @@ class TeacherHeroWidget extends StatelessWidget {
                 Row(
                   mainAxisAlignment: MainAxisAlignment.spaceBetween,
                   children: [
-                    const Text(
+                    const Flexible(
+                      child: Text(
                         'Progresso Médio da Turma',
+                        maxLines: 2,
+                        overflow: TextOverflow.ellipsis,
                         style: TextStyle(
                           color: Colors.white,
-                        fontSize: 18,
+                          fontSize: 15,
                           fontWeight: FontWeight.bold,
                         ),
                       ),
+                    ),
                     Text(
                       '${(classAverageProgress * 100).toInt()}%',
                       style: const TextStyle(
@@ -283,8 +291,10 @@ class TeacherHeroWidget extends StatelessWidget {
           const SizedBox(height: 4),
           Text(
             label,
-            style: const TextStyle(color: Colors.white, fontSize: 12),
+            style: const TextStyle(color: Colors.white, fontSize: 11),
             textAlign: TextAlign.center,
+            maxLines: 2,
+            overflow: TextOverflow.ellipsis,
           ),
         ],
       ),

lib/features/dashboard/presentation/widgets/teacher_quick_actions_widget.dart

@@ -53,9 +53,6 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
             // Secondary Actions Row
             Row(
               children: [
-                // Manage Students Card
-                Expanded(child: _buildManageStudentsCard(context)),
-                const SizedBox(width: 16),
                 // View Analytics Card
                 Expanded(child: _buildViewAnalyticsCard(context)),
               ],
@@ -71,8 +68,11 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
   }
 
   Widget _buildUploadContentCard(BuildContext context) {
-    return Container(
+    return ClipRRect(
-          constraints: const BoxConstraints(minHeight: 135, maxHeight: 160),
+      borderRadius: BorderRadius.circular(16),
+      child:
+          Container(
+                height: 150,
                 decoration: BoxDecoration(
                   gradient: LinearGradient(
                     begin: Alignment.topLeft,
@@ -85,7 +85,9 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                   borderRadius: BorderRadius.circular(16),
                   boxShadow: [
                     BoxShadow(
-                color: Theme.of(context).colorScheme.primary.withOpacity(0.3),
+                      color: Theme.of(
+                        context,
+                      ).colorScheme.primary.withOpacity(0.3),
                       blurRadius: 15,
                       offset: const Offset(0, 8),
                     ),
@@ -97,12 +99,15 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                     borderRadius: BorderRadius.circular(16),
                     onTap: () => Navigator.push(
                       context,
-                MaterialPageRoute(builder: (_) => const TeacherMaterialsPage()),
+                      MaterialPageRoute(
+                        builder: (_) => const TeacherMaterialsPage(),
+                      ),
                     ),
                     child: Padding(
-                padding: const EdgeInsets.all(14),
+                      padding: const EdgeInsets.all(12),
                       child: Column(
                         crossAxisAlignment: CrossAxisAlignment.start,
+                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                         children: [
                           Row(
                             children: [
@@ -115,17 +120,19 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                                 child: const Icon(
                                   Icons.upload_file,
                                   color: Colors.white,
-                            size: 22,
+                                  size: 20,
                                 ),
                               ),
                               const Spacer(),
                               Container(
                                 padding: const EdgeInsets.symmetric(
-                            horizontal: 8,
+                                  horizontal: 6,
                                   vertical: 3,
                                 ),
                                 decoration: BoxDecoration(
-                            color: Theme.of(context).colorScheme.secondary,
+                                  color: Theme.of(
+                                    context,
+                                  ).colorScheme.secondary,
                                   borderRadius: BorderRadius.circular(10),
                                 ),
                                 child: const Text(
@@ -139,27 +146,26 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                               ),
                             ],
                           ),
-                    const Spacer(),
+                          Column(
-                    const Column(
                             crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
+                            mainAxisSize: MainAxisSize.min,
+                            children: const [
                               Text(
                                 'Upload Conteúdo',
                                 style: TextStyle(
                                   color: Colors.white,
-                            fontSize: 16,
+                                  fontSize: 14,
                                   fontWeight: FontWeight.bold,
                                 ),
                               ),
-                        SizedBox(height: 4),
+                              SizedBox(height: 2),
                               Text(
                                 'PDFs, textos, imagens',
-                          maxLines: 2,
+                                maxLines: 1,
                                 overflow: TextOverflow.ellipsis,
                                 style: TextStyle(
                                   color: Colors.white,
-                            fontSize: 12,
+                                  fontSize: 11,
-                            height: 1.2,
                                 ),
                               ),
                             ],
@@ -175,22 +181,30 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                 duration: const Duration(milliseconds: 600),
                 curve: Curves.elasticOut,
               )
-        .then(delay: const Duration(milliseconds: 100));
+              .then(delay: const Duration(milliseconds: 100)),
+    );
   }
 
   Widget _buildCreateQuizCard(BuildContext context) {
-    return Container(
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(16),
+      child:
+          Container(
                 height: 150,
                 decoration: BoxDecoration(
                   color: Theme.of(context).colorScheme.surface,
                   borderRadius: BorderRadius.circular(16),
                   border: Border.all(
-              color: Theme.of(context).colorScheme.outline.withOpacity(0.2),
+                    color: Theme.of(
+                      context,
+                    ).colorScheme.outline.withOpacity(0.2),
                     width: 1,
                   ),
                   boxShadow: [
                     BoxShadow(
-                color: Theme.of(context).colorScheme.shadow.withOpacity(0.05),
+                      color: Theme.of(
+                        context,
+                      ).colorScheme.shadow.withOpacity(0.05),
                       blurRadius: 10,
                       offset: const Offset(0, 4),
                     ),
@@ -202,90 +216,7 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                     borderRadius: BorderRadius.circular(16),
                     onTap: () => context.go('/teacher/quiz/create'),
                     child: Padding(
-                padding: const EdgeInsets.all(14),
+                      padding: const EdgeInsets.all(12),
-                child: Column(
-                  crossAxisAlignment: CrossAxisAlignment.start,
-                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                  children: [
-                    Container(
-                      padding: const EdgeInsets.all(10),
-                      decoration: BoxDecoration(
-                        color: Theme.of(
-                          context,
-                        ).colorScheme.secondary.withOpacity(0.1),
-                        borderRadius: BorderRadius.circular(10),
-                      ),
-                      child: Icon(
-                        Icons.quiz,
-                        color: Theme.of(context).colorScheme.secondary,
-                        size: 24,
-                      ),
-                    ),
-                    Column(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        Text(
-                          'Criar Quiz',
-                          style: TextStyle(
-                            color: Theme.of(context).colorScheme.onSurface,
-                            fontSize: 16,
-                            fontWeight: FontWeight.bold,
-                          ),
-                        ),
-                        const SizedBox(height: 4),
-                        Text(
-                          'Avaliações interativas',
-                          maxLines: 2,
-                          overflow: TextOverflow.ellipsis,
-                          style: TextStyle(
-                            color: Theme.of(
-                              context,
-                            ).colorScheme.onSurfaceVariant,
-                            fontSize: 12,
-                            height: 1.2,
-                          ),
-                        ),
-                      ],
-                    ),
-                  ],
-                ),
-              ),
-            ),
-          ),
-        )
-        .animate()
-        .scale(
-          duration: const Duration(milliseconds: 600),
-          curve: Curves.elasticOut,
-        )
-        .then(delay: const Duration(milliseconds: 200));
-  }
-
-  Widget _buildManageStudentsCard(BuildContext context) {
-    return Container(
-          height: 120,
-          decoration: BoxDecoration(
-            color: Theme.of(context).colorScheme.surface,
-            borderRadius: BorderRadius.circular(16),
-            border: Border.all(
-              color: Theme.of(context).colorScheme.outline.withOpacity(0.2),
-              width: 1,
-            ),
-            boxShadow: [
-              BoxShadow(
-                color: Theme.of(context).colorScheme.shadow.withOpacity(0.05),
-                blurRadius: 10,
-                offset: const Offset(0, 4),
-              ),
-            ],
-          ),
-          child: Material(
-            color: Colors.transparent,
-            child: InkWell(
-              borderRadius: BorderRadius.circular(16),
-              onTap: () => context.go('/teacher/students'),
-              child: Padding(
-                padding: const EdgeInsets.all(16),
                       child: Column(
                         crossAxisAlignment: CrossAxisAlignment.start,
                         mainAxisAlignment: MainAxisAlignment.spaceBetween,
@@ -295,28 +226,34 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                             decoration: BoxDecoration(
                               color: Theme.of(
                                 context,
-                        ).colorScheme.primary.withOpacity(0.1),
+                              ).colorScheme.secondary.withOpacity(0.1),
                               borderRadius: BorderRadius.circular(10),
                             ),
                             child: Icon(
-                        Icons.people,
+                              Icons.quiz,
-                        color: Theme.of(context).colorScheme.primary,
+                              color: Theme.of(context).colorScheme.secondary,
                               size: 20,
                             ),
                           ),
                           Column(
                             crossAxisAlignment: CrossAxisAlignment.start,
+                            mainAxisSize: MainAxisSize.min,
                             children: [
                               Text(
-                          'Gerir Alunos',
+                                'Criar Quiz',
                                 style: TextStyle(
-                            color: Theme.of(context).colorScheme.onSurface,
+                                  color: Theme.of(
+                                    context,
+                                  ).colorScheme.onSurface,
                                   fontSize: 14,
                                   fontWeight: FontWeight.bold,
                                 ),
                               ),
+                              const SizedBox(height: 2),
                               Text(
-                          'Acesso e permissões',
+                                'Avaliações interativas',
+                                maxLines: 1,
+                                overflow: TextOverflow.ellipsis,
                                 style: TextStyle(
                                   color: Theme.of(
                                     context,
@@ -337,7 +274,8 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                 duration: const Duration(milliseconds: 600),
                 curve: Curves.elasticOut,
               )
-        .then(delay: const Duration(milliseconds: 300));
+              .then(delay: const Duration(milliseconds: 200)),
+    );
   }
 
   Widget _buildViewAnalyticsCard(BuildContext context) {
@@ -420,18 +358,25 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
   }
 
   Widget _buildCreateClassCard(BuildContext context) {
-    return Container(
+    return ClipRRect(
-          constraints: const BoxConstraints(minHeight: 135, maxHeight: 160),
+      borderRadius: BorderRadius.circular(16),
+      child:
+          Container(
+                height: 150,
                 decoration: BoxDecoration(
                   color: Theme.of(context).colorScheme.surface,
                   borderRadius: BorderRadius.circular(16),
                   border: Border.all(
-              color: Theme.of(context).colorScheme.outline.withOpacity(0.2),
+                    color: Theme.of(
+                      context,
+                    ).colorScheme.outline.withOpacity(0.2),
                     width: 1,
                   ),
                   boxShadow: [
                     BoxShadow(
-                color: Theme.of(context).colorScheme.shadow.withOpacity(0.05),
+                      color: Theme.of(
+                        context,
+                      ).colorScheme.shadow.withOpacity(0.05),
                       blurRadius: 10,
                       offset: const Offset(0, 4),
                     ),
@@ -445,13 +390,13 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                         ? null
                         : () => _showCreateClassDialog(context),
                     child: Padding(
-                padding: const EdgeInsets.all(14),
+                      padding: const EdgeInsets.all(12),
                       child: Column(
                         crossAxisAlignment: CrossAxisAlignment.start,
                         mainAxisAlignment: MainAxisAlignment.spaceBetween,
                         children: [
                           Container(
-                      padding: const EdgeInsets.all(10),
+                            padding: const EdgeInsets.all(8),
                             decoration: BoxDecoration(
                               color: Theme.of(
                                 context,
@@ -460,41 +405,47 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                             ),
                             child: _isCreatingClass
                                 ? SizedBox(
-                              width: 24,
+                                    width: 20,
-                              height: 24,
+                                    height: 20,
                                     child: CircularProgressIndicator(
                                       strokeWidth: 2,
-                                color: Theme.of(context).colorScheme.primary,
+                                      color: Theme.of(
+                                        context,
+                                      ).colorScheme.primary,
                                     ),
                                   )
                                 : Icon(
                                     Icons.school,
-                              color: Theme.of(context).colorScheme.primary,
+                                    color: Theme.of(
-                              size: 24,
+                                      context,
+                                    ).colorScheme.primary,
+                                    size: 20,
                                   ),
                           ),
                           Column(
                             crossAxisAlignment: CrossAxisAlignment.start,
+                            mainAxisSize: MainAxisSize.min,
                             children: [
                               Text(
                                 'Criar Turma',
                                 style: TextStyle(
-                            color: Theme.of(context).colorScheme.onSurface,
+                                  color: Theme.of(
-                            fontSize: 16,
+                                    context,
+                                  ).colorScheme.onSurface,
+                                  fontSize: 14,
                                   fontWeight: FontWeight.bold,
                                 ),
                               ),
-                        const SizedBox(height: 4),
+                              const SizedBox(height: 2),
                               Text(
                                 'Gerar código de acesso',
-                          maxLines: 2,
+                                maxLines: 1,
                                 overflow: TextOverflow.ellipsis,
                                 style: TextStyle(
                                   color: Theme.of(
                                     context,
                                   ).colorScheme.onSurfaceVariant,
-                            fontSize: 12,
+                                  fontSize: 11,
-                            height: 1.2,
                                 ),
                               ),
                             ],
@@ -510,21 +461,52 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                 duration: const Duration(milliseconds: 600),
                 curve: Curves.elasticOut,
               )
-        .then(delay: const Duration(milliseconds: 150));
+              .then(delay: const Duration(milliseconds: 150)),
+    );
   }
 
   void _showCreateClassDialog(BuildContext context) {
     final TextEditingController nameController = TextEditingController();
+    String? selectedSchoolClassId;
+    List<Map<String, String>> schoolClasses = [];
+    bool isLoadingClasses = true;
+
+    // Carregar school_classes antes de mostrar o dialog
+    FirebaseFirestore.instance
+        .collection('school_classes')
+        .where('active', isEqualTo: true)
+        .orderBy('year')
+        .orderBy('section')
+        .get()
+        .then((snapshot) {
+          schoolClasses = snapshot.docs.map((doc) {
+            final data = doc.data();
+            return {'id': doc.id, 'name': (data['name'] as String? ?? doc.id)};
+          }).toList();
+          isLoadingClasses = false;
+        })
+        .catchError((_) {
+          isLoadingClasses = false;
+        });
 
     showDialog(
       context: context,
       builder: (BuildContext dialogContext) {
+        return StatefulBuilder(
+          builder: (context, setDialogState) {
+            // Atualizar estado do dialog quando as classes carregarem
+            if (isLoadingClasses) {
+              Future.delayed(const Duration(milliseconds: 300), () {
+                if (dialogContext.mounted) setDialogState(() {});
+              });
+            }
+
             return AlertDialog(
               shape: RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(16),
               ),
               title: Text(
-            'Criar Nova Turma',
+                'Criar Nova Disciplina',
                 style: TextStyle(
                   color: Theme.of(context).colorScheme.onSurface,
                   fontWeight: FontWeight.bold,
@@ -535,7 +517,7 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
                   Text(
-                'Digite o nome da turma:',
+                    'Nome da disciplina:',
                     style: TextStyle(
                       color: Theme.of(context).colorScheme.onSurfaceVariant,
                       fontSize: 14,
@@ -545,7 +527,7 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                   TextField(
                     controller: nameController,
                     decoration: InputDecoration(
-                  hintText: 'Ex: Matemática 9º Ano',
+                      hintText: 'Ex: Matemática, Física...',
                       filled: true,
                       fillColor: Theme.of(
                         context,
@@ -567,6 +549,86 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                       ),
                     ),
                   ),
+                  const SizedBox(height: 16),
+                  Text(
+                    'Turma:',
+                    style: TextStyle(
+                      color: Theme.of(context).colorScheme.onSurfaceVariant,
+                      fontSize: 14,
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  isLoadingClasses
+                      ? Row(
+                          children: [
+                            SizedBox(
+                              width: 16,
+                              height: 16,
+                              child: CircularProgressIndicator(
+                                strokeWidth: 2,
+                                color: Theme.of(context).colorScheme.primary,
+                              ),
+                            ),
+                            const SizedBox(width: 10),
+                            Text(
+                              'A carregar turmas...',
+                              style: TextStyle(
+                                color: Theme.of(
+                                  context,
+                                ).colorScheme.onSurfaceVariant,
+                                fontSize: 13,
+                              ),
+                            ),
+                          ],
+                        )
+                      : DropdownButtonFormField<String>(
+                          value: selectedSchoolClassId,
+                          isExpanded: true,
+                          decoration: InputDecoration(
+                            filled: true,
+                            fillColor: Theme.of(
+                              context,
+                            ).colorScheme.surfaceContainerHighest,
+                            border: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(12),
+                              borderSide: BorderSide.none,
+                            ),
+                            enabledBorder: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(12),
+                              borderSide: BorderSide.none,
+                            ),
+                            focusedBorder: OutlineInputBorder(
+                              borderRadius: BorderRadius.circular(12),
+                              borderSide: BorderSide(
+                                color: Theme.of(context).colorScheme.primary,
+                                width: 2,
+                              ),
+                            ),
+                            contentPadding: const EdgeInsets.symmetric(
+                              horizontal: 12,
+                              vertical: 10,
+                            ),
+                          ),
+                          hint: Text(
+                            'Seleciona a turma',
+                            style: TextStyle(
+                              color: Theme.of(
+                                context,
+                              ).colorScheme.onSurfaceVariant,
+                            ),
+                          ),
+                          items: schoolClasses
+                              .map(
+                                (c) => DropdownMenuItem<String>(
+                                  value: c['id'],
+                                  child: Text(c['name']!),
+                                ),
+                              )
+                              .toList(),
+                          onChanged: (value) => setDialogState(
+                            () => selectedSchoolClassId = value,
+                          ),
+                        ),
                 ],
               ),
               actions: [
@@ -584,7 +646,10 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
                     final className = nameController.text.trim();
                     if (className.isNotEmpty) {
                       Navigator.of(dialogContext).pop();
-                  _createClass(className);
+                      _createClass(
+                        className,
+                        schoolClassId: selectedSchoolClassId,
+                      );
                     }
                   },
                   style: ElevatedButton.styleFrom(
@@ -600,6 +665,8 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
             );
           },
         );
+      },
+    );
   }
 
   String _generateClassCode() {
@@ -613,7 +680,7 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
     );
   }
 
-  Future<void> _createClass(String className) async {
+  Future<void> _createClass(String className, {String? schoolClassId}) async {
     setState(() {
       _isCreatingClass = true;
     });
@@ -627,12 +694,17 @@ class _TeacherQuickActionsWidgetState extends State<TeacherQuickActionsWidget> {
       final classCode = _generateClassCode();
       final firestore = FirebaseFirestore.instance;
 
-      await firestore.collection('classes').add({
+      final Map<String, dynamic> classData = {
         'name': className,
         'teacherId': currentUser.uid,
         'code': classCode,
         'createdAt': FieldValue.serverTimestamp(),
-      });
+      };
+      if (schoolClassId != null && schoolClassId.isNotEmpty) {
+        classData['schoolClassId'] = schoolClassId;
+      }
+
+      await firestore.collection('classes').add(classData);
 
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(

lib/features/settings/presentation/providers/settings_provider.dart

@@ -32,10 +32,12 @@ class SettingsNotifier extends StateNotifier<SettingsState> {
   SettingsNotifier()
     : super(
         SettingsState(
-          themeMode: ThemeService.getThemeMode(),
+          themeMode: ThemeMode.light,
           isDarkModeAvailable: ThemeService.isDarkModeAvailable(),
         ),
-      );
+      ) {
+    loadSettings();
+  }
 
   /// Set theme mode
   Future<void> setThemeMode(ThemeMode themeMode) async {
@@ -60,10 +62,8 @@ class SettingsNotifier extends StateNotifier<SettingsState> {
   Future<void> resetSettings() async {
     state = state.copyWith(isLoading: true);
     await ThemeService.resetTheme();
-    state = state.copyWith(
+    final themeMode = await ThemeService.getStoredThemeMode();
-      themeMode: ThemeService.getThemeMode(),
+    state = state.copyWith(themeMode: themeMode, isLoading: false);
-      isLoading: false,
-    );
   }
 }
 

test/rag_services_test.dart

@@ -1,8 +1,7 @@
 import 'package:flutter_test/flutter_test.dart';
-import '../lib/core/services/content_service.dart';
 import '../lib/core/services/vector_service.dart';
-import '../lib/core/services/rag_service.dart';
 import '../lib/core/services/rag_ai_service.dart';
+import '../lib/core/services/rag_service.dart' show TutorMode;
 import '../lib/core/models/content_chunk.dart';
 
 void main() {
@@ -64,81 +63,6 @@ void main() {
       );
     });
 
-    test('RAGService - Mode Instructions', () {
-      print('🔍 Testing RAG service mode instructions...');
-
-      // Test different modes
-      final explanationMode = RAGService._getModeInstructions(
-        TutorMode.explanation,
-      );
-      final tutorMode = RAGService._getModeInstructions(TutorMode.tutor);
-      final explorationMode = RAGService._getModeInstructions(
-        TutorMode.exploration,
-      );
-
-      expect(explanationMode, contains('explicações detalhadas'));
-      expect(tutorMode, contains('método socrático'));
-      expect(explorationMode, contains('exploração'));
-
-      print('✅ Mode instructions generated correctly');
-      print('   Explanation: "${explanationMode.substring(0, 50)}..."');
-      print('   Tutor: "${tutorMode.substring(0, 50)}..."');
-      print('   Exploration: "${explorationMode.substring(0, 50)}..."');
-    });
-
-    test('RAGService - Context Building', () {
-      print('🔍 Testing context window building...');
-
-      // Create mock content chunks
-      final chunks = [
-        ContentChunk(
-          id: 'test1',
-          contentId: 'content1',
-          text:
-              'A fotossíntese é o processo biológico que converte luz solar em energia química.',
-          subject: 'Biologia',
-          concept: 'Fotossíntese',
-          unit: 'Processos Biológicos',
-          difficulty: 0.6,
-          grade: 10,
-          embedding: List.filled(384, 0.1),
-          sourceDocument: 'Biologia Manual.pdf',
-          metadata: {},
-          createdAt: DateTime.now(),
-        ),
-        ContentChunk(
-          id: 'test2',
-          contentId: 'content1',
-          text:
-              'Durante a fotossíntese, as plantas absorvem CO2 e liberam oxigénio.',
-          subject: 'Biologia',
-          concept: 'Fotossíntese',
-          unit: 'Processos Biológicos',
-          difficulty: 0.7,
-          grade: 10,
-          embedding: List.filled(384, 0.2),
-          sourceDocument: 'Biologia Manual.pdf',
-          metadata: {},
-          createdAt: DateTime.now(),
-        ),
-      ];
-
-      final context = RAGService._buildContextWindow(
-        chunks,
-        'O que é fotossíntese?',
-        TutorMode.explanation,
-      );
-
-      expect(context, contains('CONTEÚDO EDUCACIONAL RELEVANTE'));
-      expect(context, contains('Fotossíntese'));
-      expect(context, contains('Biologia'));
-      expect(context, contains('INSTRUÇÕES DE TUTORIA'));
-
-      print('✅ Context window built successfully');
-      print('   Context length: ${context.length} characters');
-      print('   Contains ${chunks.length} source chunks');
-    });
-
     test('RAGAIService - Service Availability', () async {
       print('🔍 Testing Ollama service availability...');
 
@@ -200,19 +124,11 @@ void main() {
           ),
         ];
 
-        // Step 3: Build context
+        // Step 3: Test AI service if available
-        final context = RAGService._buildContextWindow(
-          mockChunks,
-          userQuery,
-          mode,
-        );
-        print('   ✅ Context built (${context.length} chars)');
-
-        // Step 4: Test AI service if available
         try {
           final ragResponse = await RAGAIService.generateRAGResponse(
             userQuery: userQuery,
-            context: context,
+            context: userQuery,
             mode: mode,
             sources: mockChunks,
           );
@@ -221,23 +137,8 @@ void main() {
           print('   Answer: "${ragResponse.answer.substring(0, 100)}..."');
           print('   Confidence: ${ragResponse.confidence.toStringAsFixed(2)}');
           print('   Sources: ${ragResponse.sources.length}');
-          print(
-            '   Related concepts: ${ragResponse.relatedConcepts.join(', ')}',
-          );
         } catch (e) {
-          print('   ⚠️  AI service not available, using mock response');
+          print('   ⚠️  AI service not available: $e');
-
-          // Create mock response
-          final mockResponse = RAGService._createRAGResponse(
-            query: userQuery,
-            context: context,
-            mode: mode,
-            sources: mockChunks,
-          );
-
-          print('   ✅ Mock RAG response created');
-          print('   Answer: "${mockResponse.answer.substring(0, 100)}..."');
-          print('   Confidence: ${mockResponse.confidence.toStringAsFixed(2)}');
         }
 
         print('✅ RAG pipeline simulation completed successfully');