text: """Platform to retrieve Jewish calendar information for Home Assistant."""
  import logging
  
  import voluptuous as vol
  
  from homeassistant.components.sensor import PLATFORM_SCHEMA
  from homeassistant.const import (
      CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, SUN_EVENT_SUNSET)
  import homeassistant.helpers.config_validation as cv
  from homeassistant.helpers.entity import Entity
  from homeassistant.helpers.sun import get_astral_event_date
  import homeassistant.util.dt as dt_util
  
  _LOGGER = logging.getLogger(__name__)
  
  SENSOR_TYPES = {
      'date': ['Date', 'mdi:judaism'],
      'weekly_portion': ['Parshat Hashavua', 'mdi:book-open-variant'],
      'holiday_name': ['Holiday', 'mdi:calendar-star'],
      'holyness': ['Holyness', 'mdi:counter'],
      'first_light': ['Alot Hashachar', 'mdi:weather-sunset-up'],
      'gra_end_shma': ['Latest time for Shm"a GR"A', 'mdi:calendar-clock'],
      'mga_end_shma': ['Latest time for Shm"a MG"A', 'mdi:calendar-clock'],
      'plag_mincha': ['Plag Hamincha', 'mdi:weather-sunset-down'],
      'first_stars': ['T\'set Hakochavim', 'mdi:weather-night'],
      'upcoming_shabbat_candle_lighting': ['Upcoming Shabbat Candle Lighting',
                                           'mdi:candle'],
      'upcoming_shabbat_havdalah': ['Upcoming Shabbat Havdalah',
                                    'mdi:weather-night'],
      'upcoming_candle_lighting': ['Upcoming Candle Lighting', 'mdi:candle'],
      'upcoming_havdalah': ['Upcoming Havdalah', 'mdi:weather-night'],
      'issur_melacha_in_effect': ['Issur Melacha in Effect',
                                  'mdi:power-plug-off'],
      'omer_count': ['Day of the Omer', 'mdi:counter'],
  }
  
  CONF_DIASPORA = 'diaspora'
  CONF_LANGUAGE = 'language'
  CONF_SENSORS = 'sensors'
  CONF_CANDLE_LIGHT_MINUTES = 'candle_lighting_minutes_before_sunset'
  CONF_HAVDALAH_OFFSET_MINUTES = 'havdalah_minutes_after_sunset'
  
  CANDLE_LIGHT_DEFAULT = 18
  
  DEFAULT_NAME = 'Jewish Calendar'
  
  PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
      vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
      vol.Optional(CONF_DIASPORA, default=False): cv.boolean,
      vol.Optional(CONF_LATITUDE): cv.latitude,
      vol.Optional(CONF_LONGITUDE): cv.longitude,
      vol.Optional(CONF_LANGUAGE, default='english'):
          vol.In(['hebrew', 'english']),
      vol.Optional(CONF_CANDLE_LIGHT_MINUTES, default=CANDLE_LIGHT_DEFAULT): int,
      # Default of 0 means use 8.5 degrees / 'three_stars' time.
      vol.Optional(CONF_HAVDALAH_OFFSET_MINUTES, default=0): int,
      vol.Optional(CONF_SENSORS, default=['date']):
          vol.All(cv.ensure_list, vol.Length(min=1), [vol.In(SENSOR_TYPES)]),
  })
  
  
  async def async_setup_platform(
          hass, config, async_add_entities, discovery_info=None):
      """Set up the Jewish calendar sensor platform."""
      language = config.get(CONF_LANGUAGE)
      name = config.get(CONF_NAME)
      latitude = config.get(CONF_LATITUDE, hass.config.latitude)
      longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
      diaspora = config.get(CONF_DIASPORA)
      candle_lighting_offset = config.get(CONF_CANDLE_LIGHT_MINUTES)
      havdalah_offset = config.get(CONF_HAVDALAH_OFFSET_MINUTES)
  
      if None in (latitude, longitude):
          _LOGGER.error("Latitude or longitude not set in Home Assistant config")
          return
  
      dev = []
      for sensor_type in config[CONF_SENSORS]:
          dev.append(JewishCalSensor(
              name, language, sensor_type, latitude, longitude,
              hass.config.time_zone, diaspora, candle_lighting_offset,
              havdalah_offset))
      async_add_entities(dev, True)
  
  
  class JewishCalSensor(Entity):
      """Representation of an Jewish calendar sensor."""
  
      def __init__(
              self, name, language, sensor_type, latitude, longitude, timezone,
              diaspora, candle_lighting_offset=CANDLE_LIGHT_DEFAULT,
              havdalah_offset=0):
          """Initialize the Jewish calendar sensor."""
          self.client_name = name
          self._name = SENSOR_TYPES[sensor_type][0]
          self.type = sensor_type
          self._hebrew = (language == 'hebrew')
          self._state = None
          self.latitude = latitude
          self.longitude = longitude
          self.timezone = timezone
          self.diaspora = diaspora
          self.candle_lighting_offset = candle_lighting_offset
          self.havdalah_offset = havdalah_offset
          _LOGGER.debug("Sensor %s initialized", self.type)
  
      @property
      def name(self):
          """Return the name of the sensor."""
          return '{} {}'.format(self.client_name, self._name)
  
      @property
      def icon(self):
          """Icon to display in the front end."""
          return SENSOR_TYPES[self.type][1]
  
      @property
      def state(self):
          """Return the state of the sensor."""
          return self._state
  
      async def async_update(self):
          """Update the state of the sensor."""
          import hdate
  
          now = dt_util.as_local(dt_util.now())
          _LOGGER.debug("Now: %s Timezone = %s", now, now.tzinfo)
  
          today = now.date()
          sunset = dt_util.as_local(get_astral_event_date(
              self.hass, SUN_EVENT_SUNSET, today))
  
          _LOGGER.debug("Now: %s Sunset: %s", now, sunset)
  
          location = hdate.Location(latitude=self.latitude,
                                    longitude=self.longitude,
                                    timezone=self.timezone,
                                    diaspora=self.diaspora)
  
          def make_zmanim(date):
              """Create a Zmanim object."""
              return hdate.Zmanim(
                  date=date, location=location,
                  candle_lighting_offset=self.candle_lighting_offset,
                  havdalah_offset=self.havdalah_offset, hebrew=self._hebrew)
  
          date = hdate.HDate(
              today, diaspora=self.diaspora, hebrew=self._hebrew)
          lagging_date = date
  
          # Advance Hebrew date if sunset has passed.
          # Not all sensors should advance immediately when the Hebrew date
          # officially changes (i.e. after sunset), hence lagging_date.
          if now > sunset:
              date = date.next_day
          today_times = make_zmanim(today)
          if today_times.havdalah and now > today_times.havdalah:
              lagging_date = lagging_date.next_day
  
          # Terminology note: by convention in py-libhdate library, "upcoming"
          # refers to "current" or "upcoming" dates.
          if self.type == 'date':
              self._state = date.hebrew_date
          elif self.type == 'weekly_portion':
              # Compute the weekly portion based on the upcoming shabbat.
              self._state = lagging_date.upcoming_shabbat.parasha
          elif self.type == 'holiday_name':
              self._state = date.holiday_description
          elif self.type == 'holyness':
              self._state = date.holiday_type
          elif self.type == 'upcoming_shabbat_candle_lighting':
              times = make_zmanim(lagging_date.upcoming_shabbat
                                  .previous_day.gdate)
              self._state = times.candle_lighting
          elif self.type == 'upcoming_candle_lighting':
              times = make_zmanim(lagging_date.upcoming_shabbat_or_yom_tov
                                  .first_day.previous_day.gdate)
              self._state = times.candle_lighting
          elif self.type == 'upcoming_shabbat_havdalah':
              times = make_zmanim(lagging_date.upcoming_shabbat.gdate)
              self._state = times.havdalah
          elif self.type == 'upcoming_havdalah':
              times = make_zmanim(lagging_date.upcoming_shabbat_or_yom_tov
                                  .last_day.gdate)
              self._state = times.havdalah
          elif self.type == 'issur_melacha_in_effect':
              self._state = make_zmanim(now).issur_melacha_in_effect
          elif self.type == 'omer_count':
              self._state = date.omer_day
          else:
              times = make_zmanim(today).zmanim
              self._state = times[self.type].time()
  
          _LOGGER.debug("New value: %s", self._state)
  