import serial
import time
import sys

def main():
    port = "/dev/cu.usbmodem411CF91D65091"
    print(f"Connecting to {port} at 115200...")
    try:
        ser = serial.Serial(port, 115200, timeout=1.0)
    except Exception as e:
        print(f"Error: {e}")
        return

    print("Sending Ctrl-C to interrupt...")
    ser.write(b'\x03')
    time.sleep(0.5)
    print("--- Current buffer contents ---")
    print(ser.read_all().decode("utf-8", "ignore"))

    print("Sending Ctrl-D to trigger soft reboot...")
    ser.write(b'\x04')
    
    print("--- Capturing boot output (10 seconds) ---")
    start_time = time.time()
    try:
        while time.time() - start_time < 10.0:
            if ser.in_waiting > 0:
                data = ser.read(ser.in_waiting)
                sys.stdout.write(data.decode("utf-8", "ignore"))
                sys.stdout.flush()
            time.sleep(0.05)
    except KeyboardInterrupt:
        pass
    finally:
        ser.close()
        print("\nConnection closed.")

if __name__ == "__main__":
    main()