Update app.py

app.py

@@ -29,6 +29,59 @@ def main():
 
 if __name__ == "__main__":
     main()
+def buscar_questoes_para_simulado(db: DatabaseManager, usuario_id: str, 
+                                 num_questoes: int = 10, 
+                                 areas: list = None,
+                                 dificuldade: str = None):
+    """Busca questões para gerar simulado personalizado"""
+    try:
+        conn = db.get_connection()
+        cursor = conn.cursor()
+        
+        # Busca áreas fracas do usuário
+        user_profile = db.get_user_profile(usuario_id)
+        weak_areas = user_profile.get('weak_areas', [])
+        
+        # Monta a query
+        query = '''
+        SELECT * FROM previous_questions 
+        WHERE 1=1
+        '''
+        params = []
+        
+        if areas:
+            query += ' AND area IN ({})'.format(','.join(['?']*len(areas)))
+            params.extend(areas)
+            
+        if dificuldade:
+            query += ' AND difficulty = ?'
+            params.append(dificuldade)
+            
+        # Prioriza áreas fracas
+        if weak_areas:
+            query += f''' 
+            ORDER BY 
+            CASE 
+                WHEN area IN ({','.join(['?']*len(weak_areas))}) THEN 1 
+                ELSE 2 
+            END, 
+            RANDOM()
+            '''
+            params.extend(weak_areas)
+        else:
+            query += ' ORDER BY RANDOM()'
+            
+        query += ' LIMIT ?'
+        params.append(num_questoes)
+        
+        cursor.execute(query, params)
+        questoes = cursor.fetchall()
+        
+        return [dict(q) for q in questoes]
+        
+    except Exception as e:
+        logger.error(f"Erro ao buscar questões: {e}")
+        return []
 from performance_system import PerformanceAnalyzer, StudyMaterialGenerator, ProgressTracker
 
 class MotivationalCoach: