últimas mudanças

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

@@ -93,6 +93,20 @@ class _LoginPageState extends State<LoginPage> {
           return;
         }
 
+        // Se role não existe na Firestore (null), permitir login e criar documento
+        if (actualRole == null) {
+          print(
+            'DEBUG: Role não encontrado na Firestore, criando documento com role selecionado: $selectedRole',
+          );
+          try {
+            await AuthService.createUserRole(uid, selectedRole);
+            print('DEBUG: Role criado com sucesso');
+          } catch (e) {
+            print('DEBUG: Erro ao criar role: $e');
+            // Continuar mesmo se falhar, pois o usuário já está autenticado
+          }
+        }
+
         // Validar se o role selecionado corresponde ao role real
         if (actualRole != null && selectedRole != actualRole) {
           // Fazer logout imediato antes de mostrar erro
@@ -118,6 +132,9 @@ class _LoginPageState extends State<LoginPage> {
           return;
         }
 
+        // Usar selectedRole se actualRole for null (caso acabamos de criar)
+        final finalRole = actualRole ?? selectedRole;
+
         // Save session based on remember me preference
         await SessionService.saveSession(
           rememberMe: _rememberMe,
@@ -137,7 +154,7 @@ class _LoginPageState extends State<LoginPage> {
           );
 
           // Redirecionar baseado no role real
-          if (actualRole == 'teacher') {
+          if (finalRole == 'teacher') {
             context.go('/teacher-dashboard');
           } else {
             context.go('/student-dashboard');
@@ -523,7 +540,9 @@ class _LoginPageState extends State<LoginPage> {
                                 // Signup link
                                 GestureDetector(
                                   onTap: () {
-                                    context.go('/signup');
+                                    context.go(
+                                      '/signup?role=${widget.selectedRole}',
+                                    );
                                   },
                                   child: Text(
                                     'Não tem conta? Criar aqui',

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

@@ -41,12 +41,14 @@ class _SignupPageState extends State<SignupPage> {
   Future<void> _loadAvailableClasses() async {
     setState(() => _isLoadingClasses = true);
     try {
+      print('DEBUG: Loading school_classes from Firestore');
       final snapshot = await FirebaseFirestore.instance
           .collection('school_classes')
           .where('active', isEqualTo: true)
           .orderBy('year')
           .orderBy('section')
           .get();
+      print('DEBUG: Loaded ${snapshot.docs.length} school classes');
       setState(() {
         _availableClasses = snapshot.docs.map((doc) {
           final data = doc.data();
@@ -55,6 +57,7 @@ class _SignupPageState extends State<SignupPage> {
         _isLoadingClasses = false;
       });
     } catch (e) {
+      print('DEBUG: Error loading school_classes: $e');
       setState(() => _isLoadingClasses = false);
     }
   }

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

@@ -1,9 +1,11 @@
 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
+import 'package:flutter/services.dart';
 import 'package:go_router/go_router.dart';
 import 'package:intl/intl.dart';
 import '../../../../core/services/auth_service.dart';
+import '../../../../core/theme/app_colors.dart';
 import '../../../../core/theme/app_theme_extension.dart';
 
 /// Página para visualizar os alunos de uma turma específica
@@ -202,9 +204,7 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
           controller: textController,
           decoration: InputDecoration(
             labelText: 'Nome da Turma',
-            border: OutlineInputBorder(
+            border: OutlineInputBorder(borderRadius: BorderRadius.circular(12)),
-              borderRadius: BorderRadius.circular(12),
-            ),
             prefixIcon: const Icon(Icons.school),
           ),
           autofocus: true,
@@ -254,10 +254,14 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
             Container(
               padding: const EdgeInsets.all(12),
               decoration: BoxDecoration(
-                color: Theme.of(context).colorScheme.error.withValues(alpha: 0.1),
+                color: Theme.of(
+                  context,
+                ).colorScheme.error.withValues(alpha: 0.1),
                 borderRadius: BorderRadius.circular(8),
                 border: Border.all(
-                  color: Theme.of(context).colorScheme.error.withValues(alpha: 0.3),
+                  color: Theme.of(
+                    context,
+                  ).colorScheme.error.withValues(alpha: 0.3),
                 ),
               ),
               child: Row(
@@ -420,12 +424,7 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
 
   Widget _buildAppBar(ColorScheme cs) {
     return Container(
-      padding: const EdgeInsets.only(
+      padding: const EdgeInsets.only(left: 16, right: 16, top: 52, bottom: 16),
-        left: 16,
-        right: 16,
-        top: 52,
-        bottom: 16,
-      ),
       child: Column(
         children: [
           // Top Row with Back and Actions
@@ -459,11 +458,20 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
               // Delete Button
               Container(
                 decoration: BoxDecoration(
-                  color: Colors.red.withValues(alpha: 0.2),
+                  color:
+                      (Theme.of(context).brightness == Brightness.dark
+                              ? DarkBrandColors.primaryOrange
+                              : AppColors.primaryOrange)
+                          .withValues(alpha: 0.2),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: IconButton(
-                  icon: const Icon(Icons.delete_outline, color: Colors.white),
+                  icon: Icon(
+                    Icons.delete_outline,
+                    color: Theme.of(context).brightness == Brightness.dark
+                        ? DarkBrandColors.primaryOrange
+                        : AppColors.primaryOrange,
+                  ),
                   onPressed: _showDeleteClassDialog,
                   tooltip: 'Eliminar turma',
                 ),
@@ -587,79 +595,85 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
         children: [
           const SizedBox(height: 40),
           Container(
-            padding: const EdgeInsets.all(24),
+                padding: const EdgeInsets.all(24),
-            decoration: BoxDecoration(
+                decoration: BoxDecoration(
-              color: cs.surface,
+                  color: cs.surface,
-              borderRadius: BorderRadius.circular(24),
+                  borderRadius: BorderRadius.circular(24),
-              boxShadow: [
+                  boxShadow: [
-                BoxShadow(
+                    BoxShadow(
-                  color: cs.shadow.withValues(alpha: 0.08),
+                      color: cs.shadow.withValues(alpha: 0.08),
-                  blurRadius: 20,
+                      blurRadius: 20,
-                  offset: const Offset(0, 8),
+                      offset: const Offset(0, 8),
-                ),
-              ],
-            ),
-            child: Column(
-              children: [
-                Icon(
-                  Icons.people_outline,
-                  size: 80,
-                  color: cs.primary.withValues(alpha: 0.5),
-                ),
-                const SizedBox(height: 24),
-                Text(
-                  'Nenhum aluno entrou nesta turma ainda.',
-                  style: TextStyle(
-                    color: cs.onSurface,
-                    fontSize: 18,
-                    fontWeight: FontWeight.w600,
-                  ),
-                  textAlign: TextAlign.center,
-                ),
-                const SizedBox(height: 12),
-                Text(
-                  'Partilha o código da turma para os alunos se juntarem.',
-                  style: TextStyle(
-                    color: cs.onSurfaceVariant,
-                    fontSize: 14,
-                  ),
-                  textAlign: TextAlign.center,
-                ),
-                const SizedBox(height: 24),
-                Container(
-                  padding: const EdgeInsets.symmetric(
-                    horizontal: 20,
-                    vertical: 12,
-                  ),
-                  decoration: BoxDecoration(
-                    color: cs.primary.withValues(alpha: 0.1),
-                    borderRadius: BorderRadius.circular(12),
-                    border: Border.all(
-                      color: cs.primary.withValues(alpha: 0.3),
                     ),
-                  ),
+                  ],
-                  child: Row(
+                ),
-                    mainAxisSize: MainAxisSize.min,
+                child: Column(
-                    children: [
+                  children: [
-                      Icon(Icons.copy, color: cs.primary, size: 18),
+                    Icon(
-                      const SizedBox(width: 8),
+                      Icons.people_outline,
-                      Text(
+                      size: 80,
-                        'Código: $_classCode',
+                      color: cs.primary.withValues(alpha: 0.5),
-                        style: TextStyle(
+                    ),
-                          color: cs.primary,
+                    const SizedBox(height: 24),
-                          fontSize: 16,
+                    Text(
-                          fontWeight: FontWeight.bold,
+                      'Nenhum aluno entrou nesta turma ainda.',
+                      style: TextStyle(
+                        color: cs.onSurface,
+                        fontSize: 18,
+                        fontWeight: FontWeight.w600,
+                      ),
+                      textAlign: TextAlign.center,
+                    ),
+                    const SizedBox(height: 12),
+                    Text(
+                      'Partilha o código da turma para os alunos se juntarem.',
+                      style: TextStyle(
+                        color: cs.onSurfaceVariant,
+                        fontSize: 14,
+                      ),
+                      textAlign: TextAlign.center,
+                    ),
+                    const SizedBox(height: 24),
+                    GestureDetector(
+                      onTap: _copyCodeToClipboard,
+                      child: Container(
+                        padding: const EdgeInsets.symmetric(
+                          horizontal: 20,
+                          vertical: 12,
+                        ),
+                        decoration: BoxDecoration(
+                          color: cs.primary.withValues(alpha: 0.1),
+                          borderRadius: BorderRadius.circular(12),
+                          border: Border.all(
+                            color: cs.primary.withValues(alpha: 0.3),
+                          ),
+                        ),
+                        child: Row(
+                          mainAxisSize: MainAxisSize.min,
+                          children: [
+                            Icon(Icons.copy, color: cs.primary, size: 18),
+                            const SizedBox(width: 8),
+                            Text(
+                              'Código: $_classCode',
+                              style: TextStyle(
+                                color: cs.primary,
+                                fontSize: 16,
+                                fontWeight: FontWeight.bold,
+                              ),
+                            ),
+                          ],
                         ),
                       ),
-                    ],
+                    ),
-                  ),
+                  ],
                 ),
-              ],
+              )
-            ),
+              .animate()
-          ).animate().fadeIn(
+              .fadeIn(
-            duration: const Duration(milliseconds: 400),
+                duration: const Duration(milliseconds: 400),
-            curve: Curves.easeOut,
+                curve: Curves.easeOut,
-          ).then(delay: const Duration(milliseconds: 100)),
+              )
+              .then(delay: const Duration(milliseconds: 100)),
         ],
       ),
     );
@@ -679,11 +693,7 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
             margin: const EdgeInsets.only(bottom: 16, left: 8),
             child: Row(
               children: [
-                Icon(
+                Icon(Icons.people, color: cs.onSurface, size: 20),
-                  Icons.people,
-                  color: cs.onSurface,
-                  size: 20,
-                ),
                 const SizedBox(width: 8),
                 Text(
                   'Alunos Matriculados',
@@ -746,118 +756,144 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
     int index,
   ) {
     return Container(
-      margin: const EdgeInsets.only(bottom: 12),
+          margin: const EdgeInsets.only(bottom: 12),
-      decoration: BoxDecoration(
+          decoration: BoxDecoration(
-        color: cs.surface,
+            color: cs.surface,
-        borderRadius: BorderRadius.circular(16),
+            borderRadius: BorderRadius.circular(16),
-        boxShadow: [
+            boxShadow: [
-          BoxShadow(
+              BoxShadow(
-            color: cs.shadow.withValues(alpha: 0.06),
+                color: cs.shadow.withValues(alpha: 0.06),
-            blurRadius: 12,
+                blurRadius: 12,
-            offset: const Offset(0, 4),
+                offset: const Offset(0, 4),
+              ),
+            ],
           ),
-        ],
+          child: Material(
-      ),
+            color: Colors.transparent,
-      child: Material(
+            borderRadius: BorderRadius.circular(16),
-        color: Colors.transparent,
+            child: InkWell(
-        borderRadius: BorderRadius.circular(16),
+              borderRadius: BorderRadius.circular(16),
-        child: InkWell(
+              onTap: null,
-          borderRadius: BorderRadius.circular(16),
+              child: Padding(
-          onTap: null,
+                padding: const EdgeInsets.all(16),
-          child: Padding(
+                child: Row(
-            padding: const EdgeInsets.all(16),
+                  children: [
-            child: Row(
+                    // Avatar
-              children: [
+                    Container(
-                // Avatar
+                      width: 52,
-                Container(
+                      height: 52,
-                  width: 52,
+                      decoration: BoxDecoration(
-                  height: 52,
+                        gradient: LinearGradient(
-                  decoration: BoxDecoration(
+                          begin: Alignment.topLeft,
-                    gradient: LinearGradient(
+                          end: Alignment.bottomRight,
-                      begin: Alignment.topLeft,
+                          colors: [
-                      end: Alignment.bottomRight,
+                            cs.primary.withValues(alpha: 0.8),
-                      colors: [
+                            cs.primary.withValues(alpha: 0.4),
-                        cs.primary.withValues(alpha: 0.8),
+                          ],
-                        cs.primary.withValues(alpha: 0.4),
-                      ],
-                    ),
-                    borderRadius: BorderRadius.circular(14),
-                  ),
-                  child: Center(
-                    child: Text(
-                      studentName.isNotEmpty
-                          ? studentName[0].toUpperCase()
-                          : '?',
-                      style: const TextStyle(
-                        color: Colors.white,
-                        fontSize: 22,
-                        fontWeight: FontWeight.bold,
-                      ),
-                    ),
-                  ),
-                ),
-                const SizedBox(width: 16),
-                // Info
-                Expanded(
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.start,
-                    children: [
-                      Text(
-                        studentName,
-                        style: TextStyle(
-                          color: cs.onSurface,
-                          fontSize: 16,
-                          fontWeight: FontWeight.w600,
                         ),
-                        maxLines: 1,
+                        borderRadius: BorderRadius.circular(14),
-                        overflow: TextOverflow.ellipsis,
                       ),
-                      const SizedBox(height: 4),
+                      child: Center(
-                      Text(
+                        child: Text(
-                        joinedAt != null
+                          studentName.isNotEmpty
-                            ? 'Entrou em ${_formatDate(joinedAt.toDate())}'
+                              ? studentName[0].toUpperCase()
-                            : 'Data desconhecida',
+                              : '?',
-                        style: TextStyle(
+                          style: const TextStyle(
-                          color: cs.onSurfaceVariant,
+                            color: Colors.white,
-                          fontSize: 13,
+                            fontSize: 22,
+                            fontWeight: FontWeight.bold,
+                          ),
                         ),
                       ),
-                    ],
-                  ),
-                ),
-                // Delete Button
-                Container(
-                  decoration: BoxDecoration(
-                    color: cs.error.withValues(alpha: 0.1),
-                    borderRadius: BorderRadius.circular(10),
-                  ),
-                  child: IconButton(
-                    icon: Icon(Icons.delete_outline, color: cs.error, size: 20),
-                    onPressed: () => _showRemoveStudentDialog(
-                      context,
-                      enrollmentId,
-                      studentName,
                     ),
-                    tooltip: 'Remover aluno',
+                    const SizedBox(width: 16),
-                    padding: const EdgeInsets.all(10),
+                    // Info
-                    constraints: const BoxConstraints(),
+                    Expanded(
-                  ),
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Text(
+                            studentName,
+                            style: TextStyle(
+                              color: cs.onSurface,
+                              fontSize: 16,
+                              fontWeight: FontWeight.w600,
+                            ),
+                            maxLines: 1,
+                            overflow: TextOverflow.ellipsis,
+                          ),
+                          const SizedBox(height: 4),
+                          Text(
+                            joinedAt != null
+                                ? 'Entrou em ${_formatDate(joinedAt.toDate())}'
+                                : 'Data desconhecida',
+                            style: TextStyle(
+                              color: cs.onSurfaceVariant,
+                              fontSize: 13,
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                    // Delete Button
+                    Container(
+                      decoration: BoxDecoration(
+                        color: cs.error.withValues(alpha: 0.1),
+                        borderRadius: BorderRadius.circular(10),
+                      ),
+                      child: IconButton(
+                        icon: Icon(
+                          Icons.delete_outline,
+                          color: cs.error,
+                          size: 20,
+                        ),
+                        onPressed: () => _showRemoveStudentDialog(
+                          context,
+                          enrollmentId,
+                          studentName,
+                        ),
+                        tooltip: 'Remover aluno',
+                        padding: const EdgeInsets.all(10),
+                        constraints: const BoxConstraints(),
+                      ),
+                    ),
+                  ],
                 ),
-              ],
+              ),
             ),
           ),
-        ),
+        )
-      ),
+        .animate()
-    ).animate().fadeIn(
+        .fadeIn(
-      duration: const Duration(milliseconds: 300),
+          duration: const Duration(milliseconds: 300),
-      curve: Curves.easeOut,
+          curve: Curves.easeOut,
-    ).then(delay: Duration(milliseconds: index * 50));
+        )
+        .then(delay: Duration(milliseconds: index * 50));
   }
 
   String _formatDate(DateTime date) {
     return DateFormat('dd/MM/yyyy').format(date);
   }
 
+  void _copyCodeToClipboard() {
+    Clipboard.setData(ClipboardData(text: _classCode ?? ''));
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Row(
+          children: [
+            const Icon(Icons.check_circle, color: Colors.white),
+            const SizedBox(width: 12),
+            const Text('Código copiado!'),
+          ],
+        ),
+        backgroundColor: Colors.green,
+        behavior: SnackBarBehavior.floating,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
+        duration: const Duration(seconds: 2),
+      ),
+    );
+  }
+
   Future<void> _showRemoveStudentDialog(
     BuildContext context,
     String enrollmentId,
@@ -869,7 +905,10 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
         shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
         title: Row(
           children: [
-            Icon(Icons.person_remove, color: Theme.of(context).colorScheme.error),
+            Icon(
+              Icons.person_remove,
+              color: Theme.of(context).colorScheme.error,
+            ),
             const SizedBox(width: 8),
             const Text('Remover Aluno'),
           ],

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

@@ -56,11 +56,6 @@ class _JoinClassPageState extends ConsumerState<JoinClassPage> {
         return;
       }
 
-      // Ler schoolClassId autorizado do aluno (definido no registo)
-      final studentSchoolClassId = await AuthService.getStudentSchoolClassId(
-        currentUser.uid,
-      );
-
       // Procurar disciplina pelo código
       final classQuery = await FirebaseFirestore.instance
           .collection('classes')
@@ -76,20 +71,6 @@ class _JoinClassPageState extends ConsumerState<JoinClassPage> {
 
       final classDoc = classQuery.docs.first;
       final classId = classDoc.id;
-      final classSchoolClassId = classDoc.data()['schoolClassId'] as String?;
-
-      // Verificar se o aluno está autorizado a entrar nesta disciplina
-      // O schoolClassId do aluno deve corresponder ao schoolClassId da disciplina
-      if (studentSchoolClassId == null ||
-          classSchoolClassId == null ||
-          studentSchoolClassId != classSchoolClassId) {
-        setState(() => _isLoading = false);
-        _showError(
-          'Não tens permissão para entrar nesta disciplina.\n'
-          'O teu professor ainda não te adicionou a esta disciplina.',
-        );
-        return;
-      }
 
       // Verificar se já está inscrito nesta disciplina
       final existingEnrollment = await FirebaseFirestore.instance

lib/features/tutor/presentation/pages/tutor_chat_page.dart

@@ -1,42 +0,0 @@
-import 'package:flutter/material.dart';
-
-class TutorChatPage extends StatelessWidget {
-  const TutorChatPage({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      backgroundColor: Theme.of(context).colorScheme.background,
-      appBar: AppBar(
-        title: const Text('AI Tutor'),
-        backgroundColor: Theme.of(context).colorScheme.surface,
-        foregroundColor: Theme.of(context).colorScheme.onSurface,
-        elevation: 0,
-      ),
-      body: Container(
-        decoration: BoxDecoration(
-          gradient: LinearGradient(
-            begin: Alignment.topLeft,
-            end: Alignment.bottomRight,
-            colors: [
-              Theme.of(context).colorScheme.background,
-              Theme.of(context).colorScheme.primary.withOpacity(0.1),
-              Theme.of(context).colorScheme.secondary.withOpacity(0.05),
-              Theme.of(context).colorScheme.background,
-            ],
-          ),
-        ),
-        child: Center(
-          child: Text(
-            'AI Tutor Chat - Coming Soon',
-            style: TextStyle(
-              fontSize: 24,
-              fontWeight: FontWeight.bold,
-              color: Theme.of(context).colorScheme.onSurface,
-            ),
-          ),
-        ),
-      ),
-    );
-  }
-}

test/rag_services_simple_test.dart

@@ -1,224 +0,0 @@
-import 'package:flutter_test/flutter_test.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/models/content_chunk.dart';
-
-void main() {
-  group('AI Tutor RAG Services Tests', () {
-    test('VectorService - Generate Embedding', () async {
-      print('🔍 Testing VectorService embedding generation...');
-      
-      const testText = 'A fotossíntese é o processo pelo qual as plantas convertem luz solar em energia química.';
-      
-      final embedding = VectorService.generateEmbedding(testText);
-      
-      // Verify embedding properties
-      expect(embedding.length, equals(384)); // Standard embedding size
-      expect(embedding.every((x) => x >= -1.0 && x <= 1.0), isTrue); // Normalized
-      
-      print('✅ Embedding generated successfully: ${embedding.length} dimensions');
-    });
-
-    test('VectorService - Cosine Similarity', () {
-      print('🔍 Testing cosine similarity calculation...');
-      
-      const text1 = 'A fotossíntese é importante para as plantas.';
-      const text2 = 'As plantas usam fotossíntese para produzir energia.';
-      const text3 = 'Os animais precisam de comida para sobreviver.';
-      
-      final embedding1 = VectorService.generateEmbedding(text1);
-      final embedding2 = VectorService.generateEmbedding(text2);
-      final embedding3 = VectorService.generateEmbedding(text3);
-      
-      final similarity12 = VectorService.cosineSimilarity(embedding1, embedding2);
-      final similarity13 = VectorService.cosineSimilarity(embedding1, embedding3);
-      
-      // Similar texts should have higher similarity
-      expect(similarity12, greaterThan(similarity13));
-      expect(similarity12, greaterThan(0.5)); // Should be reasonably similar
-      expect(similarity13, lessThan(0.3)); // Should be less similar
-      
-      print('✅ Cosine similarity working correctly');
-      print('   Similar (fotossíntese): ${similarity12.toStringAsFixed(3)}');
-      print('   Different (plantas vs animais): ${similarity13.toStringAsFixed(3)}');
-    });
-
-    test('VectorService - Search by Text', () async {
-      print('🔍 Testing vector search by text...');
-      
-      // This would normally search the database, but we'll test the embedding part
-      const query = 'O que é fotossíntese?';
-      final results = await VectorService.searchByText(
-        query: query,
-        subject: 'Biologia',
-        concept: 'Fotossíntese',
-        grade: 10,
-        k: 3,
-      );
-      
-      // Results might be empty if no data in database, but the call should work
-      expect(results, isA<List<ContentChunk>>());
-      
-      print('✅ Vector search completed');
-      print('   Found ${results.length} results for: "$query"');
-    });
-
-    test('RAGAIService - Service Availability', () async {
-      print('🔍 Testing Ollama service availability...');
-      
-      try {
-        final isAvailable = await RAGAIService.isServiceAvailable();
-        
-        if (isAvailable) {
-          print('✅ Ollama service is available');
-          
-          // Test model info
-          final modelInfo = await RAGAIService.getModelInfo();
-          if (modelInfo != null) {
-            print('   Model: ${modelInfo['name']}');
-            print('   Size: ${modelInfo['size']}');
-            print('   Modified: ${modelInfo['modified']}');
-          }
-          
-          // Test simple query
-          final testResponse = await RAGAIService.testService();
-          print('   Test response: "$testResponse"');
-        } else {
-          print('⚠️  Ollama service is not available');
-          print('   This is expected if the service is not running');
-        }
-      } catch (e) {
-        print('❌ Error testing service availability: $e');
-      }
-    });
-
-    test('RAG Pipeline - End-to-End Simulation', () async {
-      print('🔍 Testing complete RAG pipeline simulation...');
-      
-      try {
-        const userQuery = 'O que é fotossíntese?';
-        const mode = TutorMode.explanation;
-        
-        // Step 1: Test query embedding
-        final queryEmbedding = VectorService.generateEmbedding(userQuery);
-        print('   ✅ Query embedding generated (${queryEmbedding.length} dims)');
-        
-        // Step 2: Test vector search
-        final searchResults = await VectorService.searchSimilar(
-          queryEmbedding: queryEmbedding,
-          subject: 'Biologia',
-          concept: 'Fotossíntese',
-          grade: 10,
-          k: 3,
-        );
-        print('   ✅ Vector search completed (${searchResults.length} results)');
-        
-        // Step 3: Test RAG processing (with mock data if no real data)
-        if (searchResults.isEmpty) {
-          print('   ⚠️  No content found, creating mock data for testing...');
-          
-          // Create mock chunks for testing
-          final mockChunks = [
-            ContentChunk(
-              id: 'mock1',
-              contentId: 'mock_content1',
-              text: 'A fotossíntese é o processo pelo qual as plantas convertem luz solar em energia química.',
-              subject: 'Biologia',
-              concept: 'Fotossíntese',
-              unit: 'Processos Biológicos',
-              difficulty: 0.6,
-              grade: 10,
-              embedding: VectorService.generateEmbedding('fotossíntese plantas energia'),
-              sourceDocument: 'Biologia Manual.pdf',
-              metadata: {'page': 45},
-              createdAt: DateTime.now(),
-            ),
-          ];
-          
-          // Test RAG processing with mock data
-          final ragResponse = await RAGService.processQuery(
-            userQuery: userQuery,
-            mode: mode,
-            subject: 'Biologia',
-            concept: 'Fotossíntese',
-            grade: 10,
-            maxSources: 3,
-          );
-          
-          print('   ✅ RAG processing completed');
-          print('   Answer: "${ragResponse.answer.substring(0, 100)}..."');
-          print('   Confidence: ${ragResponse.confidence.toStringAsFixed(2)}');
-          print('   Sources: ${ragResponse.sources.length}');
-          print('   Related concepts: ${ragResponse.relatedConcepts.join(', ')}');
-          
-        } else {
-          print('   ✅ Found real content for RAG processing');
-          
-          // Test with real data
-          final ragResponse = await RAGService.processQuery(
-            userQuery: userQuery,
-            mode: mode,
-            subject: 'Biologia',
-            concept: 'Fotossíntese',
-            grade: 10,
-            maxSources: 3,
-          );
-          
-          print('   ✅ RAG processing with real data completed');
-          print('   Answer: "${ragResponse.answer.substring(0, 100)}..."');
-          print('   Confidence: ${ragResponse.confidence.toStringAsFixed(2)}');
-          print('   Sources: ${ragResponse.sources.length}');
-        }
-        
-        print('✅ RAG pipeline simulation completed successfully');
-        
-      } catch (e) {
-        print('❌ Error in RAG pipeline: $e');
-      }
-    });
-
-    test('VectorService - Batch Embeddings', () async {
-      print('🔍 Testing batch embedding generation...');
-      
-      final texts = [
-        'A fotossíntese converte luz solar em energia.',
-        'As plantas usam clorofila para capturar luz.',
-        'O oxigénio é um subproduto da fotossíntese.',
-      ];
-      
-      final embeddings = await VectorService.batchGenerateEmbeddings(texts);
-      
-      expect(embeddings.length, equals(texts.length));
-      expect(embeddings.every((e) => e.length == 384), isTrue);
-      
-      print('✅ Batch embeddings generated successfully');
-      print('   Generated ${embeddings.length} embeddings');
-      
-      // Test similarities between batch embeddings
-      for (int i = 0; i < embeddings.length; i++) {
-        for (int j = i + 1; j < embeddings.length; j++) {
-          final similarity = VectorService.cosineSimilarity(embeddings[i], embeddings[j]);
-          print('   Similarity ${i+1}-${j+1}: ${similarity.toStringAsFixed(3)}');
-        }
-      }
-    });
-
-    test('VectorService - Statistics', () async {
-      print('🔍 Testing vector statistics...');
-      
-      final stats = await VectorService.getVectorStats();
-      
-      expect(stats, isA<Map<String, dynamic>>());
-      expect(stats.containsKey('totalChunks'), isTrue);
-      expect(stats.containsKey('embeddingDimension'), isTrue);
-      expect(stats['embeddingDimension'], equals(384));
-      
-      print('✅ Vector statistics retrieved');
-      print('   Total chunks: ${stats['totalChunks']}');
-      print('   Embedding dimension: ${stats['embeddingDimension']}');
-      print('   Subjects: ${stats['subjects'].keys.length}');
-      print('   Concepts: ${stats['concepts'].keys.length}');
-    });
-  });
-}

test/rag_services_test.dart

@@ -1,154 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import '../lib/core/services/vector_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() {
-  group('AI Tutor RAG Services Tests', () {
-    setUpAll(() async {
-      // Setup test data
-      print('🧪 Setting up test environment...');
-    });
-
-    test('VectorService - Generate Embedding', () async {
-      print('🔍 Testing VectorService embedding generation...');
-
-      const testText =
-          'A fotossíntese é o processo pelo qual as plantas convertem luz solar em energia química.';
-
-      final embedding = VectorService.generateEmbedding(testText);
-
-      // Verify embedding properties
-      expect(embedding.length, equals(384)); // Standard embedding size
-      expect(
-        embedding.every((x) => x >= -1.0 && x <= 1.0),
-        isTrue,
-      ); // Normalized
-
-      print(
-        '✅ Embedding generated successfully: ${embedding.length} dimensions',
-      );
-    });
-
-    test('VectorService - Cosine Similarity', () {
-      print('🔍 Testing cosine similarity calculation...');
-
-      const text1 = 'A fotossíntese é importante para as plantas.';
-      const text2 = 'As plantas usam fotossíntese para produzir energia.';
-      const text3 = 'Os animais precisam de comida para sobreviver.';
-
-      final embedding1 = VectorService.generateEmbedding(text1);
-      final embedding2 = VectorService.generateEmbedding(text2);
-      final embedding3 = VectorService.generateEmbedding(text3);
-
-      final similarity12 = VectorService.cosineSimilarity(
-        embedding1,
-        embedding2,
-      );
-      final similarity13 = VectorService.cosineSimilarity(
-        embedding1,
-        embedding3,
-      );
-
-      // Similar texts should have higher similarity
-      expect(similarity12, greaterThan(similarity13));
-      expect(similarity12, greaterThan(0.5)); // Should be reasonably similar
-      expect(similarity13, lessThan(0.3)); // Should be less similar
-
-      print('✅ Cosine similarity working correctly');
-      print('   Similar (fotossíntese): ${similarity12.toStringAsFixed(3)}');
-      print(
-        '   Different (plantas vs animais): ${similarity13.toStringAsFixed(3)}',
-      );
-    });
-
-    test('RAGAIService - Service Availability', () async {
-      print('🔍 Testing Ollama service availability...');
-
-      try {
-        final isAvailable = await RAGAIService.isServiceAvailable();
-
-        if (isAvailable) {
-          print('✅ Ollama service is available');
-
-          // Test model info
-          final modelInfo = await RAGAIService.getModelInfo();
-          if (modelInfo != null) {
-            print('   Model: ${modelInfo['name']}');
-            print('   Size: ${modelInfo['size']}');
-            print('   Modified: ${modelInfo['modified']}');
-          }
-
-          // Test simple query
-          final testResponse = await RAGAIService.testService();
-          print('   Test response: "$testResponse"');
-        } else {
-          print('⚠️  Ollama service is not available');
-          print('   This is expected if the service is not running');
-        }
-      } catch (e) {
-        print('❌ Error testing service availability: $e');
-      }
-    });
-
-    test('RAG Pipeline - End-to-End Simulation', () async {
-      print('🔍 Testing complete RAG pipeline simulation...');
-
-      try {
-        const userQuery = 'O que é fotossíntese?';
-        const mode = TutorMode.explanation;
-
-        // Step 1: Generate query embedding
-        final queryEmbedding = VectorService.generateEmbedding(userQuery);
-        print('   ✅ Query embedding generated');
-
-        // Step 2: Simulate content retrieval (mock data)
-        final mockChunks = [
-          ContentChunk(
-            id: 'chunk1',
-            contentId: 'content1',
-            text:
-                'A fotossíntese é o processo pelo qual as plantas, algas e algumas bactérias convertem luz solar em energia química.',
-            subject: 'Biologia',
-            concept: 'Fotossíntese',
-            unit: 'Processos Biológicos',
-            difficulty: 0.6,
-            grade: 10,
-            embedding: VectorService.generateEmbedding(
-              'fotossíntese plantas energia',
-            ),
-            sourceDocument: 'Biologia Manual.pdf',
-            metadata: {'page': 45},
-            createdAt: DateTime.now(),
-          ),
-        ];
-
-        // Step 3: Test AI service if available
-        try {
-          final ragResponse = await RAGAIService.generateRAGResponse(
-            userQuery: userQuery,
-            context: userQuery,
-            mode: mode,
-            sources: mockChunks,
-          );
-
-          print('   ✅ RAG response generated');
-          print('   Answer: "${ragResponse.answer.substring(0, 100)}..."');
-          print('   Confidence: ${ragResponse.confidence.toStringAsFixed(2)}');
-          print('   Sources: ${ragResponse.sources.length}');
-        } catch (e) {
-          print('   ⚠️  AI service not available: $e');
-        }
-
-        print('✅ RAG pipeline simulation completed successfully');
-      } catch (e) {
-        print('❌ Error in RAG pipeline: $e');
-      }
-    });
-
-    tearDownAll(() async {
-      print('🧹 Cleaning up test environment...');
-    });
-  });
-}

test/widget_test.dart

@@ -1,30 +0,0 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-import 'package:learn_it/main.dart';
-
-void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
-
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
-  });
-}