#!/usr/bin/python3

import logging
import time
import os
from pydbus import SystemBus
from gi.repository import GLib
from datetime import datetime
import sms_functions
from observium_func import assemble_sms

def main():
    # Setup logging
    logfile = "/opt/sms/sms.log"
    FORMAT = '%(asctime)-15s %(message)s'
    logging.basicConfig(format=FORMAT,filename=logfile,level=10)
    logger = logging.getLogger('observiumsms')
    
    # check param
    smsrcpt = os.environ.get('USERMOBILE')
    if not smsrcpt:
        logger.error('No SMS number given')
        raise Exception('No SMS number given for message')
    
    # Assemble SMS
    smsstring = assemble_sms()
    logger.info("Sending SMS: %s", smsstring)
    
    success = False
    retries = 0
    max_retries = 3
    
    while not success and retries < max_retries:
        retries += 1
        try:
            # Contact ModemManager, unlock SIM and send SMS to emergency numbers
            sms_functions.send_sms([ smsrcpt ], smsstring)
        except sms_functions.SIMError as err:
            logger.exception('SIM Error when sending SMS')
        except sms_functions.ModemManagerError as err:
            logger.error('Error when sending SMS: {0}'.format(e.value))
            time.sleep(6)
        else:
            success = True

if __name__ == "__main__":
    main()