138 lines
4.0 KiB
Python
138 lines
4.0 KiB
Python
"""Support for tracking which astronomical or meteorological season it is."""
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from __future__ import annotations
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from datetime import date, datetime
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import logging
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import ephem
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import voluptuous as vol
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from homeassistant.components.sensor import (
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PLATFORM_SCHEMA as PARENT_PLATFORM_SCHEMA,
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SensorEntity,
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)
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from homeassistant.const import CONF_NAME, CONF_TYPE
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from homeassistant.core import HomeAssistant
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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from homeassistant.util.dt import utcnow
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_NAME = "Season"
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EQUATOR = "equator"
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NORTHERN = "northern"
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SOUTHERN = "southern"
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STATE_AUTUMN = "autumn"
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STATE_SPRING = "spring"
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STATE_SUMMER = "summer"
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STATE_WINTER = "winter"
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TYPE_ASTRONOMICAL = "astronomical"
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TYPE_METEOROLOGICAL = "meteorological"
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VALID_TYPES = [TYPE_ASTRONOMICAL, TYPE_METEOROLOGICAL]
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HEMISPHERE_SEASON_SWAP = {
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STATE_WINTER: STATE_SUMMER,
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STATE_SPRING: STATE_AUTUMN,
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STATE_AUTUMN: STATE_SPRING,
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STATE_SUMMER: STATE_WINTER,
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}
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SEASON_ICONS = {
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STATE_SPRING: "mdi:flower",
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STATE_SUMMER: "mdi:sunglasses",
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STATE_AUTUMN: "mdi:leaf",
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STATE_WINTER: "mdi:snowflake",
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}
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PLATFORM_SCHEMA = PARENT_PLATFORM_SCHEMA.extend(
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{
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vol.Optional(CONF_TYPE, default=TYPE_ASTRONOMICAL): vol.In(VALID_TYPES),
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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}
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)
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def setup_platform(
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hass: HomeAssistant,
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config: ConfigType,
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add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Display the current season."""
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_type: str = config[CONF_TYPE]
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name: str = config[CONF_NAME]
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if hass.config.latitude < 0:
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hemisphere = SOUTHERN
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elif hass.config.latitude > 0:
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hemisphere = NORTHERN
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else:
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hemisphere = EQUATOR
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_LOGGER.debug(_type)
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add_entities([Season(hemisphere, _type, name)], True)
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def get_season(
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current_date: date, hemisphere: str, season_tracking_type: str
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) -> str | None:
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"""Calculate the current season."""
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if hemisphere == "equator":
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return None
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if season_tracking_type == TYPE_ASTRONOMICAL:
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spring_start = ephem.next_equinox(str(current_date.year)).datetime()
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summer_start = ephem.next_solstice(str(current_date.year)).datetime()
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autumn_start = ephem.next_equinox(spring_start).datetime()
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winter_start = ephem.next_solstice(summer_start).datetime()
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else:
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spring_start = datetime(2017, 3, 1).replace(year=current_date.year)
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summer_start = spring_start.replace(month=6)
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autumn_start = spring_start.replace(month=9)
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winter_start = spring_start.replace(month=12)
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if spring_start <= current_date < summer_start:
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season = STATE_SPRING
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elif summer_start <= current_date < autumn_start:
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season = STATE_SUMMER
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elif autumn_start <= current_date < winter_start:
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season = STATE_AUTUMN
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elif winter_start <= current_date or spring_start > current_date:
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season = STATE_WINTER
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# If user is located in the southern hemisphere swap the season
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if hemisphere == NORTHERN:
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return season
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return HEMISPHERE_SEASON_SWAP.get(season)
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class Season(SensorEntity):
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"""Representation of the current season."""
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_attr_device_class = "season__season"
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def __init__(self, hemisphere: str, season_tracking_type: str, name: str) -> None:
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"""Initialize the season."""
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self._attr_name = name
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self.hemisphere = hemisphere
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self.type = season_tracking_type
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def update(self) -> None:
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"""Update season."""
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self._attr_native_value = get_season(
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utcnow().replace(tzinfo=None), self.hemisphere, self.type
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)
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self._attr_icon = "mdi:cloud"
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if self._attr_native_value:
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self._attr_icon = SEASON_ICONS[self._attr_native_value]
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