#!/usr/bin/python3

import logging
import os
from pydbus import SystemBus
from gi.repository import GLib

def assemble_sms():
    str_list = []
    str_list.append("Observium {}\n".format(os.environ.get('OBSERVIUM_TITLE')))
    str_list.append("{} [{}]\n".format(os.environ.get('OBSERVIUM_ENTITY_NAME'), os.environ.get('OBSERVIUM_ENTITY_DESCRIPTION')))
    str_list.append("{}".format(os.environ.get('OBSERVIUM_DURATION')))
    return ''.join(str_list)

# Setup logging
logfile = "/opt/sms/sms.log"
FORMAT = '%(asctime)-15s %(message)s'
logging.basicConfig(format=FORMAT,filename=logfile,level=10)
logger = logging.getLogger('observiumsms')

# Path to file with SMS numbers
emergency_file = "/opt/sms/emergency_numbers.txt"

# Assemble SMS
smsstring = assemble_sms()
logger.info("Sending SMS: %s", smsstring)

# Contact ModemManager, unlock SIM and send SMS to emergency numbers
with SystemBus() as bus:
    mm = bus.get('.ModemManager1')
    modems = mm.GetManagedObjects()
    modem_path = list(modems.keys())[0]

    logger.info("Going with %s", modem_path)
    modem = bus.get(".ModemManager1", modem_path)
    
    sim_path = modem.Sim
    if not sim_path:
        logger.critical("No SIM")
        quit()

    # unlock SIM, if not alreadY
    props = modem.GetStatus()
    print(props)
    if props and props['state'] == 2:
        logger.info("Trying to unlock %s", sim_path)
        sim = bus.get('.ModemManager1', sim_path)
        sim.SendPin("1234", timeout=10000)
        props = modem.GetStatus()
        if props and props['state'] == 2:
            logger.critical("Wrong PIN!")
            quit()
    
    # enable the modem
    modem.Enable(True)

    # test sending SMS
    modem_msg = modem['org.freedesktop.ModemManager1.Modem.Messaging']
    smses = modem_msg.List()

    print(modem.GetStatus()['signal-quality'])

    raise Exception('TODO phone numbers')

    for line in fnums:
        line = line.strip()
        if not line:
            continue

        logger.info("Creating new SMS for %s", line)
        smstext = GLib.Variant('s', smsstring)
        smsnumber = GLib.Variant('s', line)

        dictsms = { 'text': smstext, 'number': smsnumber }

        msgpath = modem_msg.Create(dictsms)
        logger.info("Created new SMS %s", msgpath)

        logger.info("Sending SMS %s", msgpath)
        sms = bus.get(".ModemManager1", msgpath)
        sms.Send(timeout=30000)
        
        logger.info("SMS %s state %s", msgpath, sms.State)