#!/usr/bin/env python3
import threading
import time
import logging
import argparse
from m2m.nbiot import factory

logging.basicConfig(level=logging.INFO, format='[%(threadName)s] %(message)s')

def urc_listener(module):
    """Background thread to continuously poll for URCs."""
    while True:
        # poll() uses the internal lock, so it's safe to run alongside the main thread
        module.poll(timeout=1.0)
        time.sleep(0.1)

def main(port):
    module = factory('BG95', port)
    
    with module:
        module.radio_on()
        
        # Start background listener
        listener = threading.Thread(target=urc_listener, args=(module,), name="URC-Pump", daemon=True)
        listener.start()

        # Main thread performs transactions
        for i in range(10):
            with module.transaction:
                rssi, ber = module.get_signal_quality()
                status = module.read_cereg_status()
                logging.info(f"Check {i}: Signal={rssi}, RegStatus={status}")
            
            # The background thread can still process incoming data here
            time.sleep(5)

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Run async URC handler demo.")
    parser.add_argument("port", nargs="?", default="/dev/ttyUSB0", help="Serial port (e.g. /dev/ttyUSB0 or MOCK)")
    args = parser.parse_args()
    main(args.port)