Update app.py

app.py

@@ -1,70 +1,157 @@
 import gradio as gr
-from huggingface_hub import InferenceClient
+from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
+import torch
 
+# Model setup
+model_name = "IniNLP247/Kenko-mental-health-llama-3-model"
 
-def respond(
-    message,
-    history: list[dict[str, str]],
-    system_message,
-    max_tokens,
-    temperature,
-    top_p,
-    hf_token: gr.OAuthToken,
-):
-    """
-    For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference
-    """
-    client = InferenceClient(token=hf_token.token, model="openai/gpt-oss-20b")
+print("🔄 Loading Kenko Mental Health Model...")
 
-    messages = [{"role": "system", "content": system_message}]
+# Load tokenizer and model
+tokenizer = AutoTokenizer.from_pretrained(model_name)
+if tokenizer.pad_token is None:
+    tokenizer.pad_token = tokenizer.eos_token
 
-    messages.extend(history)
+model = AutoModelForCausalLM.from_pretrained(
+    model_name,
+    torch_dtype=torch.float16,  # Changed from 'dtype' to 'torch_dtype'
+    device_map="auto"
+)
 
-    messages.append({"role": "user", "content": message})
+# Create pipeline for easier inference
+pipe = pipeline(
+    "text-generation",
+    model=model,
+    tokenizer=tokenizer,
+    return_full_text=False,
+    max_new_tokens=300,
+    temperature=0.7,
+    top_p=0.9,
+    repetition_penalty=1.1,
+    pad_token_id=tokenizer.pad_token_id
+)
 
-    response = ""
+print("✅ Model loaded successfully!")
 
-    for message in client.chat_completion(
-        messages,
-        max_tokens=max_tokens,
-        stream=True,
-        temperature=temperature,
-        top_p=top_p,
-    ):
-        choices = message.choices
-        token = ""
-        if len(choices) and choices[0].delta.content:
-            token = choices[0].delta.content
+def chat_with_kenko(message, history):
+    """Chat function for Gradio interface"""
+    # Build conversation context
+    conversation = ""
+    for user_msg, bot_msg in history:
+        conversation += f"User: {user_msg}\nKenko: {bot_msg}\n\n"
 
-        response += token
-        yield response
+    # Create prompt in instruction format
+    prompt = f"""### Instruction:
+You are Kenko, a compassionate mental health therapist. Provide empathetic, helpful, and professional responses to support the user's mental wellbeing.
 
+{conversation}User: {message}
 
+### Response:
 """
-For information on how to customize the ChatInterface, peruse the gradio docs: https://www.gradio.app/docs/chatinterface
+
+    # Generate response
+    try:
+        response = pipe(prompt)[0]['generated_text']
+        return response.strip()
+    except Exception as e:
+        return f"I'm sorry, I'm having trouble processing your message right now. Error: {str(e)}"
+
+# Custom CSS for a calming interface
+css = """
+.gradio-container {
+    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+}
 """
-chatbot = gr.ChatInterface(
-    respond,
-    type="messages",
-    additional_inputs=[
-        gr.Textbox(value="You are a friendly Chatbot.", label="System message"),
-        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(
-            minimum=0.1,
-            maximum=1.0,
-            value=0.95,
-            step=0.05,
-            label="Top-p (nucleus sampling)",
-        ),
-    ],
-)
 
-with gr.Blocks() as demo:
-    with gr.Sidebar():
-        gr.LoginButton()
-    chatbot.render()
+# Create Gradio interface
+with gr.Blocks(
+    title="Kenko - Mental Health Assistant",
+    theme=gr.themes.Soft(),
+    css=css
+) as demo:
+
+    gr.Markdown("""
+    # 🧠💚 Kenko - Your Mental Health Assistant
+
+    Welcome! I'm Kenko, an AI mental health therapist here to provide support, guidance, and a listening ear.
+    Feel free to share what's on your mind - I'm here to help you through whatever you're experiencing.
+
+    *Please remember: I'm an AI assistant and cannot replace professional mental health care. In crisis situations, please contact emergency services or a mental health professional.*
+    """)
+
+    chatbot = gr.Chatbot(
+        height=500,
+        show_label=False,
+        container=True,
+        bubble_full_width=False,
+        avatar_images=("👤", "🧠")
+    )
+
+    with gr.Row():
+        msg = gr.Textbox(
+            placeholder="Share what's on your mind... (press Enter to send)",
+            container=False,
+            scale=7,
+            lines=2,
+            max_lines=4
+        )
+        send_btn = gr.Button("Send 💬", scale=1, variant="primary")
+
+    with gr.Row():
+        clear_btn = gr.Button("🗑️ Clear Chat", scale=1, variant="secondary")
+        examples_btn = gr.Button("💡 Example Topics", scale=1, variant="secondary")
+
+    # Example prompts
+    with gr.Row(visible=False) as examples_row:
+        gr.Examples(
+            examples=[
+                "I've been feeling really anxious lately and I don't know why.",
+                "I'm having trouble sleeping and my mind won't stop racing.",
+                "I feel overwhelmed with work and personal responsibilities.",
+                "I'm struggling with low self-esteem and negative thoughts.",
+                "I'm having difficulty in my relationships.",
+                "I feel lonely and isolated.",
+                "I'm dealing with grief and loss.",
+                "I want to build better coping strategies."
+            ],
+            inputs=msg,
+            label="Try these conversation starters:"
+        )
+
+    with gr.Accordion("ℹ️ About Kenko", open=False):
+        gr.Markdown("""
+        **What I can help with:**
+        - Active listening and emotional support
+        - Coping strategies and stress management techniques
+        - Guidance on anxiety, depression, and mood concerns
+        - Relationship and communication advice
+        - Mindfulness and self-care suggestions
+        - Building healthy habits and routines
+
+        **Important Notes:**
+        - I'm an AI trained to provide mental health support
+        - For immediate crisis support, contact emergency services (911) or crisis hotlines
+        - Consider professional therapy for ongoing mental health needs
+        - I don't diagnose conditions or prescribe medications
+
+        **Privacy:** Your conversations are not stored or shared.
+        """)
+
+    def respond(message, chat_history):
+        if not message.strip():
+            return "", chat_history
+
+        bot_response = chat_with_kenko(message, chat_history)
+        chat_history.append((message, bot_response))
+        return "", chat_history
+
+    def toggle_examples():
+        return gr.Row(visible=True)
 
+    msg.submit(respond, [msg, chatbot], [msg, chatbot])
+    send_btn.click(respond, [msg, chatbot], [msg, chatbot])
+    clear_btn.click(lambda: [], outputs=chatbot)
+    examples_btn.click(toggle_examples, outputs=examples_row)
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch()  # Simplified for HF Spaces - no need for server config