chatbot_page.py

import gradio as gr
import os
# from analyzer import analyze_code

# System prompt for the chatbot
CHATBOT_SYSTEM_PROMPT = (
    "You are a helpful and friendly assistant. Your goal is to help the user discover their ideal Hugging Face repository. "
    "Engage in a natural conversation, ask clarifying questions about their needs, such as their use case, preferred programming languages, or specific features they are looking for. "
    "Keep your responses concise and focused on helping the user."
)

# Store the conversation
conversation_history = []

# Function to handle chat
def chat_with_user(user_message, history):
    from openai import OpenAI
    client = OpenAI(api_key=os.getenv("modal_api"))
    client.base_url = os.getenv("base_url")
    # Build the message list for the LLM
    messages = [
        {"role": "system", "content": CHATBOT_SYSTEM_PROMPT}
    ]
    for msg in history:
        messages.append({"role": "user", "content": msg[0]})
        if msg[1]:
            messages.append({"role": "assistant", "content": msg[1]})
    messages.append({"role": "user", "content": user_message})
    response = client.chat.completions.create(
        model="Orion-zhen/Qwen2.5-Coder-7B-Instruct-AWQ",
        messages=messages,
        max_tokens=256,
        temperature=0.7
    )
    assistant_reply = response.choices[0].message.content
    return assistant_reply

# Function to end chat and extract keywords
def extract_keywords_from_conversation(history):
    print("Extracting keywords from conversation...")
    from openai import OpenAI
    client = OpenAI(api_key=os.getenv("modal_api"))
    client.base_url = os.getenv("base_url")
    # Combine all user and assistant messages into a single string
    conversation = "\n".join([f"User: {msg[0]}\nAssistant: {msg[1]}" for msg in history if msg[1]])
    system_prompt = (
        "You are an expert at helping users find open-source repos on Hugging Face. "
        "Given a conversation, extract about 5 keywords that would be most useful for searching Hugging Face repos to find the most relevant results for the user. "
        "Return only the keywords as a comma-separated list."
        "Use keywords that are specific to the user's use case and features they are looking for."
    )
    user_prompt = (
        "Conversation:\n" + conversation + "\n\nExtract about 5 keywords for Hugging Face repo search."
    )
    response = client.chat.completions.create(
        model="Orion-zhen/Qwen2.5-Coder-7B-Instruct-AWQ",
        messages=[
            {"role": "system", "content": system_prompt},
            {"role": "user", "content": user_prompt}
        ],
        max_tokens=64,
        temperature=0.3
    )
    print("Response received from OpenAI...")
    print(response.choices[0].message.content)
    keywords = response.choices[0].message.content.strip()
    return keywords

with gr.Blocks() as chatbot_demo:
    gr.Markdown("## Repo Recommendation Chatbot")
    chatbot = gr.Chatbot(type="messages", label="Chatbot")
    # Initial assistant message only
    initial_message = "Hello! Please tell me about your ideal Hugging Face repo. What use case, preferred language, or features are you looking for?"
    state = gr.State([{"role": "assistant", "content": initial_message}])
    user_input = gr.Textbox(label="Your message", placeholder="Describe your ideal repo or answer the assistant's questions...")
    send_btn = gr.Button("Send")
    end_btn = gr.Button("End Chat and Extract Keywords")
    keywords_output = gr.Textbox(label="Extracted Keywords for Repo Search", interactive=False)

    def user_send(user_message, history_messages):
        # Add user message to the UI
        history_messages.append({"role": "user", "content": user_message})
        
        # Convert to tuple format for the API call
        tuple_history = []
        for i in range(0, len(history_messages) -1, 2): # Exclude the last user message
             if i + 1 < len(history_messages):
                tuple_history.append((history_messages[i]['content'], history_messages[i+1]['content']))

        # Get bot response and add to UI
        assistant_reply = chat_with_user(user_message, tuple_history)
        history_messages.append({"role": "assistant", "content": assistant_reply})
        
        return history_messages, ""

    def end_chat(history_messages):
        # Convert to tuple format for the API call
        tuple_history = []
        for i in range(0, len(history_messages), 2):
            if i + 1 < len(history_messages):
                tuple_history.append((history_messages[i]['content'], history_messages[i+1]['content']))
        
        keywords = extract_keywords_from_conversation(tuple_history)
        return keywords

    # Reset state to initial message when chatbot page is loaded
    def reset_chat_state():
        return [{"role": "assistant", "content": initial_message}]

    send_btn.click(user_send, inputs=[user_input, state], outputs=[chatbot, user_input])
    end_btn.click(end_chat, inputs=state, outputs=keywords_output)
    chatbot_demo.load(reset_chat_state, inputs=None, outputs=state)

if __name__ == "__main__":
    chatbot_demo.launch()