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import gradio as gr
import json
import requests
import time

# --- Configuration for LM Studio API ---
LM_STUDIO_API_URL = "http://192.168.1.245:1234/v1/chat/completions"
LM_MODEL_NAME = "google/gemma-3-27b"

# --- Dynamic System Prompt ---
DEFAULT_PROMPT = """

You are InsightGenie, an AI-powered qualitative research assistant. Your purpose is to conduct a structured interview to deeply understand a user's experience with a specific topic.



**Instructions:**

1. **Persona:** You are a professional, neutral, and empathetic research interviewer. Maintain a supportive and curious tone.

2. **Goal:** Your primary goal is to gather rich, detailed qualitative data. Ask open-ended questions that encourage detailed responses.

3. **Conversation Flow:**

    - After each user response, analyze the sentiment and key topics.

    - Based on your analysis, generate **one** follow-up question to probe deeper. Do not ask multiple questions.

    - You must keep the conversation focused on the topic.

4. **Structured Output:** After each user turn, you must respond with a JSON object. The JSON should contain two fields:

    - `next_question`: The text of your next question for the user.

    - `summary`: A brief, neutral summary of the user's last response.



**Example JSON Response:**

```json

{

  "next_question": "Can you tell me more about why that was your favorite part?",

  "summary": "The user had a positive experience and liked the fast delivery."

}

"""

# Global variable to store the conversation log for the current session
conversation_log = []

# --- Helper Functions ---
def handle_save_and_display_status():
    save_message = save_conversation_log()
    # Returns a Gradio component update
    return gr.Textbox(value=save_message, visible=True)

def log_conversation_turn(user_message, ai_response, ai_summary):
    """Appends a single turn to the in-memory conversation log."""
    global conversation_log
    conversation_log.append({
        "user_message": user_message,
        "ai_response": ai_response,
        "ai_summary": ai_summary,
        "timestamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
    })

def save_conversation_log():
    """Saves the entire conversation log to a JSON file."""
    global conversation_log
    if not conversation_log:
        return "No conversation to save."
    
    file_name = f"conversation_log_{int(time.time())}.json"
    try:
        with open(file_name, 'w', encoding='utf-8') as f:
            json.dump(conversation_log, f, indent=4, ensure_ascii=False)
        return f"Conversation saved to {file_name}"
    except Exception as e:
        return f"Failed to save conversation: {e}"

def chat_with_lm_studio(message, history, prompt_text):
    messages = [{"role": "system", "content": prompt_text}]
    for user_msg, assistant_msg in history:
        messages.append({"role": "user", "content": user_msg})
        messages.append({"role": "assistant", "content": assistant_msg})
    messages.append({"role": "user", "content": message})

    try:
        response = requests.post(
            LM_STUDIO_API_URL,
            json={
                "model": LM_MODEL_NAME,
                "messages": messages,
                "max_tokens": 250, # Increased max tokens to give the model more room
                "temperature": 0.7
            }
        )
        response.raise_for_status()

        api_response_data = response.json()
        
        if 'choices' in api_response_data and len(api_response_data['choices']) > 0:
            raw_content = api_response_data['choices'][0]['message']['content']
            
            # --- Robust JSON Extraction and Parsing Logic ---
            try:
                # Find the start and end of the JSON block
                json_start = raw_content.find("```json")
                if json_start != -1:
                    json_end = raw_content.find("```", json_start + 1)
                    if json_end != -1:
                        # Extract the pure JSON string
                        json_string = raw_content[json_start + 7:json_end].strip()
                    else:
                        # Fallback if the closing tag is missing
                        json_string = raw_content[json_start + 7:].strip()
                else:
                    # Fallback to the entire response if no JSON block is found
                    json_string = raw_content.strip()

                parsed_response = json.loads(json_string)
                next_question = parsed_response.get("next_question", "Thank you for your response.")
                summary = parsed_response.get("summary", "No summary provided.")
                
                log_conversation_turn(message, next_question, summary)
                print(f"User: {message}\nAI Summary: {summary}\nAI Question: {next_question}\n---")

                history.append((message, next_question))
                return "", history

            except json.JSONDecodeError:
                print("LLM failed to produce valid JSON. Raw output:", raw_content)
                history.append((message, "I'm sorry, I couldn't process that. Can you please rephrase?"))
                return "", history

        else:
            error_message = api_response_data.get('error', 'Unknown API error.')
            print(f"API Error Response: {error_message}")
            history.append((message, f"An API error occurred: {error_message}. Please check the console."))
            return "", history

    except requests.exceptions.RequestException as e:
        history.append((message, f"An API error occurred: {e}. Please ensure LM Studio server is running."))
        return "", history
    except Exception as e:
        history.append((message, f"An unexpected error occurred: {e}"))
        return "", history

# --- Gradio Interface Layout ---
with gr.Blocks(theme=gr.themes.Soft(), title="InsightGenie Live Demo") as demo:
    gr.Markdown("# InsightGenie: Your AI-powered Qualitative Assistant 🧠")
    
    with gr.Tabs():
        with gr.Tab("Live Demo"):
            gr.Markdown(
                "Start a conversation with the AI researcher. "
                "The conversation data is structured for analysis and can be saved."
            )
            chatbot = gr.Chatbot(height=500, placeholder="Type your first message to begin the interview...")
            
            with gr.Row():
                msg = gr.Textbox(label="Your message", scale=4)
                chat_submit_btn = gr.Button("Send", scale=1)

            gr.Examples(
                examples=[
                    ["I had a great experience with a new online clothing store."],
                    ["The delivery was slow, and the product was damaged."]
                ],
                inputs=msg
            )
            
            with gr.Row():
                clear_btn = gr.Button("Clear Chat")
                save_btn = gr.Button("Save Conversation")
            
            save_status = gr.Textbox(label="Save Status", interactive=False, visible=False)

        with gr.Tab("Prompt Settings"):
            gr.Markdown(
                "Customize the AI's persona and instructions. "
                "Changing this prompt will affect the next conversation turn."
            )
            prompt_input = gr.Textbox(
                label="System Prompt",
                value=DEFAULT_PROMPT,
                lines=20,
                interactive=True
            )

    # Event Handlers
    msg.submit(chat_with_lm_studio, [msg, chatbot, prompt_input], [msg, chatbot], concurrency_limit=None)
    chat_submit_btn.click(chat_with_lm_studio, [msg, chatbot, prompt_input], [msg, chatbot], concurrency_limit=None)
    clear_btn.click(lambda: [], None, [chatbot])
    save_btn.click(handle_save_and_display_status, None, save_status)

# --- Launch the Demo ---
if __name__ == "__main__":
    demo.launch(share=True)