import serial
from gsmmodem import GsmModem
from gsmmodem.modem import SentSms

PORT = "/dev/tty.usbmodem11101"
BAUDRATE = 115200
ser = serial.Serial(PORT, BAUDRATE, timeout=1)


def has_sim() -> bool:
    # check pin
    cmd_check_pin = "AT+cpin?\r"
    msg = send_command(cmd_check_pin)
    if b'OK' in msg:
        return True
    else:
        return False


def send_command(cmd: str) -> bytes:
    print("send command {}".format(cmd))
    ser.write(cmd.encode())
    msg = ser.read(100)
    print(msg)
    return msg


def send_sms(sms_destination: str, msg: str):
    print('Initializing modem...')
    modem = GsmModem(PORT, BAUDRATE)
    modem.connect('0000')
    # modem.waitForNetworkCoverage(10)
    print('Sending SMS to: {0}'.format(sms_destination))

    response = modem.sendSms(sms_destination, msg, True)
    if type(response) == SentSms:
        print('SMS Delivered.')
    else:
        print('SMS Could not be sent')

    modem.close()


if __name__ == '__main__':
    # enable verbose logs
    cmd = "AT+CMEE=2\r"
    send_command(cmd)
    if has_sim():
        send_sms("+33649614591","Modem pool test")
    else:
        print("no cart sim")