import datetime
import logging
import re
import sys
import time

from gsmmodem import GsmModem

from commandor import Commandor
from excel_reader import ExcelReader
from pojo.serial_modem import SerialModem
from utils.logging import init_logger

BAUDRATE = 115200
OTP_TIMEOUT = 60
sms_received = False
commandor = Commandor()


def get_devices_ports() -> list:
    return ["/dev/tty.usbmodem121101",
            "/dev/tty.usbmodem121103",
            "/dev/tty.usbmodem121105",
            "/dev/tty.usbmodem121107",
            "/dev/tty.usbmodem121201",
            "/dev/tty.usbmodem121203",
            "/dev/tty.usbmodem121205",
            "/dev/tty.usbmodem121207",
            "/dev/tty.usbmodem121301",
            # "/dev/tty.usbmodem1121303",
            "/dev/tty.usbmodem121305",
            "/dev/tty.usbmodem121307",
            "/dev/tty.usbmodem121401",
            "/dev/tty.usbmodem121403",
            "/dev/tty.usbmodem121405",
            "/dev/tty.usbmodem121407"]


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


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


def get_phone_number():
    cmd = "AT+CNUM\r"
    send_command(cmd)


def create_modem_for_port(port: str) -> SerialModem:
    logger.info('Initializing modem... for ' + port)
    # Uncomment the following line to see what the modem is doing:
    init_logger()
    modem = GsmModem(port, BAUDRATE)
    modem.connect('0000')
    number = modem.ownNumber
    logger.info("The SIM card phone number is:")
    logger.info(number)
    cmd = "AT+CCID\r"
    response = modem.write(cmd, True)
    ccid = response[0].split(" ")[1].replace("\"", "")
    logger.info("The SIM card ccid is:" + ccid)

    serial_modem = SerialModem(modem=modem, ccid=ccid)
    return serial_modem


def start_to_handle_sms(serial_modem: SerialModem):
    serial_modem.modem.smsReceivedCallback = handle_sms
    global sms_received
    sms_received = False
    serial_modem.modem.smsTextMode = False
    logger.info('Waiting for SMS message, for phone number ' + str(serial_modem.phone_number))
    listen_at = time.time()
    while not sms_received:
        time.sleep(2)
        # check whether timeout
        now = time.time()
        if (listen_at + OTP_TIMEOUT) < now:
            logger.info("time out for {}, switch to next contact".format(serial_modem.phone_number))
            return
    return


def handle_sms(sms):
    logger.info(
        u'== SMS message received ==\nFrom: {0}\nTime: {1}\nMessage:\n{2}\n'.format(sms.number, sms.time, sms.text))
    # extract the otp number
    logger.info("try to extract the otp")
    match = re.search(r'\d{6,8}', sms.text)
    otp = match.group(0)
    logger.info("otp is " + otp)
    commandor.send_otp(otp)
    time.sleep(20)
    global sms_received
    sms_received = True


def init_modems() -> list:
    modems = []
    for port in get_devices_ports():
        modems.append(create_modem_for_port(port))
    # read the contact, and contact the 2 objects together
    excel_reader = ExcelReader()
    contacts = excel_reader.read_contacts()
    for modem in modems:
        contact = [contact for contact in contacts if contact.ccid == modem.ccid][0]
        modem.phone_number = contact.phone
        modem.contact = contact
    return modems


if __name__ == '__main__':
    # enable verbose logs for all port
    init_logger()
    logger = logging.getLogger()
    logger.addHandler(logging.StreamHandler(stream=sys.stdout))
    # create modems for all the available port
    modem_list = init_modems()
    #     create listeners for chaque modem

    for modem in modem_list:
        commandor.start_page(modem.contact)
        start_to_handle_sms(modem)