Update app.py

app.py

@@ -1,10 +1,27 @@
 import gradio as gr
 from huggingface_hub import InferenceClient
 
-# ✅ Set up Hugging Face Inference API with the correct model
+# ✅ Connect to Hugging Face Zephyr-7B API
 client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
 
-# ✅ Define the response function
+# ✅ Mental health-specific system message
+MENTAL_HEALTH_PROMPT = (
+    "You are Bandar AI, an empathetic mental health AI assistant. "
+    "You provide emotional support, self-care advice, and stress management tips. "
+    "You DO NOT give medical diagnoses. Always encourage users to seek professional help if needed. "
+    "Here is the user's message:\n"
+)
+
+# ✅ Function to check if the message is related to mental health
+def is_mental_health_related(message):
+    keywords = [
+        "anxious", "stress", "depressed", "lonely", "overwhelmed",
+        "panic", "mental health", "self-care", "therapy", "sad", "burnout",
+        "emotions", "counseling", "support", "well-being"
+    ]
+    return any(word in message.lower() for word in keywords)
+
+# ✅ Function to handle chat responses
 def respond(
     message,
     history: list[tuple[str, str]],
@@ -13,16 +30,20 @@ def respond(
     temperature,
     top_p,
 ):
+    # 🔴 Reject unrelated topics
+    if not is_mental_health_related(message):
+        return "❌ Sorry, I can only discuss mental health topics. Please ask about emotions, self-care, or stress management."
+
     messages = [{"role": "system", "content": system_message}]
 
-    # Add chat history
+    # ✅ Add chat history
     for val in history:
         if val[0]:
             messages.append({"role": "user", "content": val[0]})
         if val[1]:
             messages.append({"role": "assistant", "content": val[1]})
 
-    # Add the new user input
+    # ✅ Add the new user input
     messages.append({"role": "user", "content": message})
 
     response = ""
@@ -39,12 +60,14 @@ def respond(
         response += token
         yield response  # Stream output in real-time
 
-
-# ✅ Improved Chatbot UI
+# ✅ Improved Chatbot UI for Mental Health
 demo = gr.ChatInterface(
     respond,
     additional_inputs=[
-        gr.Textbox(value="You are Bandar AI, a friendly chatbot.", label="System message"),
+        gr.Textbox(
+            value=MENTAL_HEALTH_PROMPT,
+            label="System message (Defines AI behavior)",
+        ),
         gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"),
         gr.Slider(minimum=0.1, maximum=4.0, value=0.7, step=0.1, label="Temperature"),
         gr.Slider(
@@ -55,8 +78,12 @@ demo = gr.ChatInterface(
             label="Top-p (nucleus sampling)",
         ),
     ],
-    title="🤖 Bandar AI Chatbot",
-    description="🚀 Chat with Bandar AI, powered by Zephyr-7B."
+    title="🧠 Bandar AI - Your Mental Health Companion",
+    description=(
+        "💙 Bandar AI is here to support your mental well-being. "
+        "Chat with me about stress, anxiety, or self-care. "
+        "I offer guidance, but I'm NOT a medical professional. Always seek expert help when needed."
+    ),
 )
 
 # ✅ Run the chatbot