#!/usr/bin/python

def parse_homematic(info):
  result = { }
  for line in info:
    key = line[0]
    device = result.get(key)
    if key == 'SVC_MSG':
      if device is None:
        device = []
        result[key] = device
      device.append(line[1:])
    else:
      if device is None:
        device = { }
        result[key] = device
      device[line[1]] = line[2:]
  return result

def inventory_homematic(parsed):
  yield 'Low Battery devices', None
  yield 'Unreachable devices', None
  yield 'Service Messages', None

def check_homematic(item, params, parsed):
  messages = parsed.get('SVC_MSG', None);

  state = 0
  devices = []

  if messages is not None:
    for msg in messages:
      if item == 'Low Battery devices':
        if msg[1] == 'LOWBAT':
          state = 2
          devices.append(msg[0])
      elif item == 'Unreachable devices':
        if msg[1] == 'UNREACH':
          state = 2
          devices.append(msg[0])
        elif msg[1] == 'STICKY_UNREACH':
          state = max(state, 1)
          devices.append(msg[0])
      elif item == 'Service Messages':
        if msg[1] not in [ 'LOWBAT', 'UNREACH', 'STICKY_UNREACH' ]:
          if msg[1] in [ 'CONFIG_PENDING', 'DEVICE_IN_BOOTLOADER', 'UPDATE_PENDING', 'USBH_POWERFAIL' ]:
            state = max(state, 1)
          else:
            state = 2
          devices.append(msg[0] + ':' + msg[1])

  if state == 0:
    return 0, 'No issues reported'

  return state, ', '.join(devices)

check_info['homematic'] = {
  'check_function':      check_homematic,
  'inventory_function':  inventory_homematic,
  'parse_function':      parse_homematic,
  'service_description': "Homematic %s",
}

def inventory_homematic_humidity(parsed):
  for line in parsed:
    data = parsed[line]
    if isinstance(data, dict):
      temperature = data.get('TEMPERATURE', data.get('ACTUAL_TEMPERATURE', None))
      humidity = data.get('HUMIDITY', None)

      if temperature is not None and humidity is not None:
        yield line, { }

def check_homematic_humidity(item, params, parsed):
  for line in parsed:
    if line == item:
      data = parsed[line]
      temperature = data.get('TEMPERATURE', data.get('ACTUAL_TEMPERATURE', None))
      humidity = data.get('HUMIDITY', None)

      if humidity is None or temperature is None:
        return 3, 'Humidity or temperature are not available'

      date = humidity[1]
      temperature = float(temperature[0])
      humidity = float(humidity[0])

      if humidity <= params['critical'][0] or humidity >= params['critical'][1]:
        state = 2
      elif humidity <= params['warning'][0] or humidity >= params['warning'][1]:
        state = 1
      else:
        state = 0

      message = "Temperature: %f, Humidity: %f (last change: %s)" % (temperature, humidity, date)
      perfdata = [
        ('temperature', temperature),
        ('humidity', humidity),
      ]

      return state, message, perfdata

factory_settings['homematic_humidity_default_levels'] = {
    'warning' : (40, 60),
    'critical': (35, 65),
}

homematic_humidity_default_levels = { }

check_info['homematic.humidity'] = {
  'check_function':          check_homematic_humidity,
  'inventory_function':      inventory_homematic_humidity,
  'service_description':     "Humidity %s",
  'group':                   'homematic_humidity',
  'default_levels_variable': 'homematic_humidity_default_levels',
  'has_perfdata':            True,
}

def inventory_homematic_dutycycle(parsed):
  for line in parsed:
    data = parsed[line]
    if isinstance(data, dict) and data.get('DUTY_CYCLE', None) is not None:
      yield line, { }

def check_homematic_dutycycle(item, params, parsed):
  for line in parsed:
    if line == item:
      data = parsed[line]
      dutycycle = data.get('DUTY_CYCLE', None)

      if dutycycle is None :
        return 3, 'Duty cycle is not available'

      dutycycle = float(dutycycle[0])
      if dutycycle >= params['critical']:
        state = 2
      elif dutycycle >= params['warning']:
        state = 1
      else:
        state = 0

      message = "Duty cycle: %f" % (dutycycle)
      perfdata = [
        ('dutycycle', dutycycle, params['warning'], params['critical'], 0, 100),
      ]

      return state, message, perfdata

factory_settings['homematic_dutycycle_default_levels'] = {
    'warning' : 50,
    'critical': 70,
}

homematic_dutycycle_default_levels = { }

check_info['homematic.dutycycle'] = {
  'check_function':          check_homematic_dutycycle,
  'inventory_function':      inventory_homematic_dutycycle,
  'service_description':     "Duty cycle %s",
  'group':                   'homematic_dutycycle',
  'default_levels_variable': 'homematic_dutycycle_default_levels',
  'has_perfdata':            True,
}