Coisas

lib/features/quiz/presentation/pages/quiz_list_page.dart

@@ -2119,16 +2119,99 @@ class _QuizListPageState extends State<QuizListPage>
       );
     }
 
-    final groups = _groupHistoryByDiscipline();
-    final filteredItems = items.where((item) {
-      final cid = item['classId'] as String?;
-      return groups.containsKey(cid) && cid != null;
-    }).toList();
+    // Handle selected discipline for AI-generated quizzes
+    if (_selectedHistoryDisciplineId != null) {
+      final groups = _groupHistoryByDiscipline();
+      final disciplineItems = groups[_selectedHistoryDisciplineId] ?? [];
+      // Filter only AI-generated quizzes (teacherQuizId == null)
+      final aiDisciplineItems = disciplineItems
+          .where((q) => q['teacherQuizId'] == null)
+          .toList();
+      final disciplineName =
+          _historyClassNames[_selectedHistoryDisciplineId] ??
+          _selectedHistoryDisciplineId!;
 
-    if (filteredItems.isEmpty) {
+      return Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Padding(
+            padding: const EdgeInsets.all(16),
+            child: Row(
+              children: [
+                IconButton(
+                  icon: Icon(Icons.arrow_back, color: cs.onSurface),
+                  onPressed: () =>
+                      setState(() => _selectedHistoryDisciplineId = null),
+                ),
+                const SizedBox(width: 4),
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        disciplineName,
+                        style: TextStyle(
+                          fontSize: 18,
+                          fontWeight: FontWeight.bold,
+                          color: cs.onSurface,
+                        ),
+                      ),
+                      Text(
+                        '${aiDisciplineItems.length} quiz${aiDisciplineItems.length != 1 ? 'zes' : ''}',
+                        style: TextStyle(
+                          fontSize: 14,
+                          color: cs.onSurfaceVariant,
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          ),
+          Expanded(
+            child: Stack(
+              children: [
+                _buildHistoryList(
+                  cs,
+                  aiDisciplineItems,
+                  isTeacherQuizzes: false,
+                ),
+                if (_isSelectionMode && _selectedQuizIds.isNotEmpty)
+                  Positioned(
+                    bottom: 16,
+                    right: 16,
+                    child: FloatingActionButton.extended(
+                      onPressed: _deleteSelectedQuizzes,
+                      backgroundColor: Colors.red,
+                      icon: const Icon(Icons.delete),
+                      label: Text('Eliminar (${_selectedQuizIds.length})'),
+                    ),
+                  ),
+              ],
+            ),
+          ),
+        ],
+      );
+    }
+
+    // Group only AI-generated quizzes by discipline
+    final aiItems = items.where((q) => q['teacherQuizId'] == null).toList();
+
+    // Filter groups to only include disciplines with AI-generated quizzes
+    final aiGroups = <String, List<Map<String, dynamic>>>{};
+    for (final item in aiItems) {
+      final cid = item['classId'] as String?;
+      final groupId = (cid != null && _historyClassNames.containsKey(cid))
+          ? cid
+          : '__geral__';
+      aiGroups.putIfAbsent(groupId, () => []).add(item);
+    }
+
+    if (aiGroups.isEmpty) {
       return Stack(
         children: [
-          _buildHistoryList(cs, items, isTeacherQuizzes: isTeacherQuizzes),
+          _buildHistoryList(cs, aiItems, isTeacherQuizzes: isTeacherQuizzes),
           if (_isSelectionMode && _selectedQuizIds.isNotEmpty)
             Positioned(
               bottom: 16,
@@ -2144,7 +2227,7 @@ class _QuizListPageState extends State<QuizListPage>
       );
     }
 
-    final realDisciplineIds = groups.keys
+    final realDisciplineIds = aiGroups.keys
         .where((k) => k != '__geral__' && _historyClassNames.containsKey(k))
         .toList();
 
@@ -2176,7 +2259,7 @@ class _QuizListPageState extends State<QuizListPage>
           itemBuilder: (context, i) {
             final dId = realDisciplineIds[i];
             final dName = _historyClassNames[dId] ?? dId;
-            final count = groups[dId]!.length;
+            final count = aiGroups[dId]!.length;
             return InkWell(
               borderRadius: BorderRadius.circular(16),
               onTap: () => setState(() => _selectedHistoryDisciplineId = dId),