Add debug prints and sanitize messages

app.py

@@ -12,8 +12,24 @@ def predict(message, history):
     
     # Criamos a lista de mensagens adicionando a mensagem atual ao histórico
     # O history vem do Gradio, o message é o input atual
-    messages = history + [{"role": "user", "content": message}]
+    if message is None:
+        message = ""
     
+    print(f"DEBUG INPUT: message={repr(message)}")
+    print(f"DEBUG INPUT: history={repr(history)}")
+
+    new_messages = history + [{"role": "user", "content": message}]
+    
+    # Sanitize messages to ensure no None content
+    messages = []
+    for msg in new_messages:
+        content = msg.get("content")
+        if content is None:
+            content = ""
+        messages.append({"role": msg.get("role"), "content": content})
+
+    print(f"DEBUG FINAL MESSAGES: {messages}")
+
     # Gera a resposta
     results = pipe(messages, max_new_tokens=512)