Update app.py

app.py

@@ -19,19 +19,28 @@ def respond(message, history, character_id, max_tokens, temperature, top_p):
     char = character_dict[character_id]
     system_message = char["persona_prompt"]
 
-    messages = [{"role": "system", "content": system_message}] + history + [{"role": "user", "content": message}]
+    # Format lại history đúng kiểu "messages"
+    messages = [{"role": "system", "content": system_message}]
+    for turn in history:
+        if turn["role"] in ["user", "assistant"]:
+            messages.append(turn)
 
-    response = ""
-    for msg in client.chat_completion(
+    messages.append({"role": "user", "content": message})
+
+    # Không dùng stream
+    result = client.chat_completion(
         messages,
         max_tokens=max_tokens,
         temperature=temperature,
         top_p=top_p,
-        stream=False,
-    ):
-        token = msg.choices[0].delta.content or ""
-        response += token
-        return history + [{"role": "user", "content": message}, {"role": "assistant", "content": response}]
+        stream=False
+    )
+
+    reply = result.choices[0].message.content
+    history.append({"role": "user", "content": message})
+    history.append({"role": "assistant", "content": reply})
+    return history
+
 
 # Tạo danh sách lựa chọn nhân vật
 def format_label(c):