Update app.py

app.py

@@ -47,8 +47,8 @@ def chat(user_fact, history):
             {"role": "system", "content": SYSTEM_PROMPT},
             {"role": "user",   "content": f"الفعل: {user_fact}"}
         ],
+        "stream": True,  # ← ADD THIS — you were missing the stream flag in payload
     }
-
     try:
         r = requests.post(
             "http://127.0.0.1:8080/v1/chat/completions",
@@ -57,8 +57,9 @@ def chat(user_fact, history):
             timeout=400
         )
         r.raise_for_status()
-
         result = ""
+        yielded = False  # ← track whether we've yielded anything
+
         for raw in r.iter_lines():
             if not raw:
                 continue
@@ -71,15 +72,19 @@ def chat(user_fact, history):
             try:
                 chunk = json.loads(data)
                 delta = chunk["choices"][0]["delta"].get("content") or ""
-                result += delta
-                yield result
+                if delta:
+                    result += delta
+                    yielded = True
+                    yield result
             except (KeyError, json.JSONDecodeError):
                 continue
 
+        if not yielded:  # ← always yield something
+            yield "لم يتم استلام أي رد من النموذج."
+
     except Exception as e:
         yield f"حدث خطأ أثناء الاتصال بالخادم الداخلي: {str(e)}"
 
-
 # =========================
 # 5. GRADIO UI
 # =========================