import datetime
import logging
import re
import sys
import time
from typing import Union

from gsmmodem import GsmModem

from ModemPool import ModemPool
from card_pool import CardPool
from commandor import Commandor
from logs.LogSender import LOG_APPOINTMENT_TIMEOUT, LOG_APPOINTMENT_SUCCESS
from params import MODEM_POOL_PORTS, CARD_POOL_PORT, firebase_store_manager, oracle_log_sender
from pojo.ReserveResultPojo import ReserveResultPojo
from utils.excel_reader import ExcelHelper
from pojo.serial_modem import SerialModem
from logs.AppLogging import init_logger
from utils.message_receiver import MessageReceiver

BAUDRATE = 115200
OTP_TIMEOUT = 70
is_finished = False
commandor = Commandor()
contacts = []

card_pool = CardPool(CARD_POOL_PORT)


def get_devices_ports() -> list:
    return MODEM_POOL_PORTS


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, wait_time_in_s: int = 0) -> bytes:
    ser.write(cmd.encode())
    msg = ser.read(100)
    count = 0
    while 'OK' not in str(msg) and count < wait_time_in_s:
        time.sleep(1)
        count = count + 1
        msg = ser.read(100)
    # msg = ser.read(100)
    print(msg)
    return msg


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


def execut_USSD_cmd(cmd, ser):
    send_command(cmd, ser)


def create_modem_for_port(port: str) -> Union[SerialModem, None]:
    logger.info('Initializing modem... for ' + port)
    # Uncomment the following line to see what the modem is doing:
    init_logger()
    serial_modem = None
    try:
        modem = GsmModem(port)
        # time.sleep(1)
        # modem.connect()
        # number = modem.ownNumber
        # logger.info("The SIM card phone number is:")
        # logger.info(number)
        return SerialModem(modem=modem)
    except Exception as ext:
        print(ext)
        return serial_modem


def timeout_occurred(serial_modem: SerialModem):
    firebase_store_manager.save_timeout_contact(serial_modem.contact)
    oracle_log_sender.send_log(str(serial_modem.phone_number), type=LOG_APPOINTMENT_TIMEOUT)


def start_to_handle_sms(serial_modem: SerialModem):
    serial_modem.modem.smsReceivedCallback = handle_sms
    global is_finished
    is_finished = 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 is_finished:
        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))
            # save the contact in timeout
            timeout_occurred(serial_modem)
            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)
    # wait for the sms for 20 seconds
    global is_finished
    while not is_finished:
        time.sleep(2)
    is_finished = True


def select_sim_storage(ser) -> bool:
    # use SIM Card storage
    cmd_sm = "AT+CPBS=\"SM\"\r"
    result = send_command(cmd_sm, ser)
    if "ERROR" in str(result):
        return False
    else:
        return True


def init_modems() -> list:
    modems = []
    for port in get_devices_ports():
        serial_modem = create_modem_for_port(port)
        if serial_modem:
            modems.append(serial_modem)
    return modems


def on_message_received(ch, method, properties, body):
    logger.info(" [x] Received {} {}".format(body, datetime.datetime.now()))
    #     parse the received message
    result = ReserveResultPojo.from_json(body)
    print(result)
    firebase_store_manager.save(result)
    oracle_log_sender.send_appoint_result(result)
    # set the flag to True
    global is_finished
    is_finished = True


def start_listen():
    logger.info("start to listen to message queue")
    receiver = MessageReceiver()
    receiver.start_listener(on_message_received)


def read_all_the_phone_number():
    slot_number = 1
    slot_sum = 31
    # card_pool.switch_to_slot(3)

    for i in range(slot_number, slot_sum + 1):
        card_pool.reset()
        print("will switch to " + str(i))
        card_pool.switch_to_slot(i)
        modem_pool = ModemPool(get_devices_ports())
        modem_pool.reset_all_modems()
        modem_pool.get_raw_phone_number(i)


def start_book():
    slot_number = 12
    slot_sum = 31
    for i in range(slot_number, slot_sum + 1):
        card_pool.reset()
        print("will switch to " + str(i))
        card_pool.switch_to_slot(i)
        modem_pool = ModemPool(get_devices_ports())
        modem_pool.reset_all_modems()
        modem_list = init_modems()
        # create listeners for chaque modem
        # read the contact, and contact the 2 objects together
        excel_reader = ExcelHelper()
        global contacts
        contacts = excel_reader.read_contacts()
        for index, modem in modem_list:
            # get contact for current modem
            modem.get_ccid()
            contact = [contact for contact in contacts if contact.ccid == modem.ccid]
            if len(contact) > 0:
                modem.phone_number = contact[0].phone
                modem.contact = contact[0]
            if modem.contact:
                commandor.start_page(modem.contact)
                start_to_handle_sms(modem)


if __name__ == '__main__':
    init_logger()
    logger = logging.getLogger()
    logger.addHandler(logging.StreamHandler(stream=sys.stdout))
    # read_all_the_phone_number()
    start_listen()
    start_book()