chore: Refactor chat_with_openai function to improve readability and maintainability

app.py

@@ -44,12 +44,13 @@ HEADERS = {
 MAX_SEC = 30
 MAX_INPUT_LENGTH = 5000
 
-client = OpenAI(
-	base_url=API_URL,
-	api_key=TOKEN
-)
 
-def chat_with_openai(client, model_name, system_message, user_message, temperature=0.5, max_tokens=1024, top_p=0.5):
+def chat_with_openai(model_name, system_message, user_message, temperature=0.5, max_tokens=1024, top_p=0.5):
+    client = OpenAI(
+        base_url=API_URL,
+        api_key=TOKEN
+    )    
+
     chat_completion = client.chat.completions.create(
         model=model_name,
         messages=[
@@ -163,7 +164,6 @@ with gr.Blocks() as demo:
             yield history
         else:
             r = chat_with_openai(
-                client,
                 MODEL_NAME,
                 system_prompt,
                 history[-1][0],