Added correct authentication

app.py

@@ -6,8 +6,30 @@ For more information on `huggingface_hub` Inference API support, please check th
 """
 client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
 
+def login_screen():
+  username = gr.Textbox("Username: ").value
+  password = gr.Textbox("Password: ", type="password").value
+  if username == "admin" and password == "pass1234":
+    return None  # Login successful, no output
+  else:
+    return "Incorrect credentials. Please try again."
 
-def respond(
+def chat(message):
+  if not hasattr(chat, 'authorized'):
+    chat.authorized = None  # Flag for login status
+
+  if chat.authorized is None:
+    response = login_screen()
+    if response is None:
+      chat.authorized = True
+      return "Welcome! How can I help you generate a job description?"
+    else:
+      return response
+  else:
+    # Call the actual job description generation function
+    return generate_job_description(message, max_tokens, temperature, top_p)
+
+def generate_job_description(
     message,
     history: list[tuple[str, str]],
     system_message,
@@ -43,7 +65,7 @@ def respond(
 For information on how to customize the ChatInterface, peruse the gradio docs: https://www.gradio.app/docs/chatinterface
 """
 demo = gr.ChatInterface(
-    respond,
+    chat,
     additional_inputs=[
         gr.Textbox(value="You are an expert in generating job descriptions.", label="System message"),
         gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"),