app.py

import scratchattach as sa
import os
from flask import Flask
import subprocess
from threading import Thread

app = Flask(__name__)

def Curl(URL):
    # Added a timeout to prevent the app from hanging forever
    curl_command = ['curl', '-s', '-X', 'GET', URL]
    try:
        result = subprocess.run(curl_command, 
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE,
                               text=True,
                               timeout=10)
        if result.returncode == 0:
            # Note: .replace() returns a NEW string, it doesn't modify the original
            response = result.stdout
            response = response.replace("<", "BTTL").replace(">", "BTTR")
            return response
    except Exception as e:
        return f"Curl Error: {str(e)}"
    return "No response"

def run_scratch_bot():
    sessionid = os.getenv("ID")
    useridname = os.getenv("USR")
    
    if not sessionid:
        print("CRITICAL: ID (Session ID) environment variable is missing!")
        return

    try:
        # Initialize Scratch session
        session = sa.login_by_id(sessionid, username=useridname)
        
        # Check if login actually worked
        if session.xtoken is None:
            print("FAILED: Session ID is invalid or expired.")
            return

        cloud = session.connect_cloud("1185047933")
        client = cloud.requests()

        @client.request
        def get_groq_response(user_input):
            try:
                return Curl(user_input)
            except Exception as e:
                return f"Error: {str(e)}"

        print("Scratch bot is starting...")
        client.run() # This runs inside the thread
    except Exception as e:
        print(f"Scratch connection error: {e}")

# Start the Scratch bot in a background thread so Flask can boot independently
thread = Thread(target=run_scratch_bot)
thread.start()

@app.route('/')
def index():
    return "Go to https://scratch.mit.edu/projects/1185047933/ for a live demo."

if __name__ == "__main__":
    # Port 7860 is required for Hugging Face
    app.run(host="0.0.0.0", port=7860)