138 lines
3.9 KiB
Python
138 lines
3.9 KiB
Python
"""Support for tariff selection."""
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from __future__ import annotations
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import logging
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from homeassistant.components.select import SelectEntity
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import CONF_UNIQUE_ID
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers import device_registry as dr, entity_registry as er
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.restore_state import RestoreEntity
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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from .const import CONF_METER, CONF_SOURCE_SENSOR, CONF_TARIFFS, DATA_UTILITY
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_entry(
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hass: HomeAssistant,
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config_entry: ConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Initialize Utility Meter config entry."""
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name = config_entry.title
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tariffs: list[str] = config_entry.options[CONF_TARIFFS]
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unique_id = config_entry.entry_id
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registry = er.async_get(hass)
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source_entity = registry.async_get(config_entry.options[CONF_SOURCE_SENSOR])
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dev_reg = dr.async_get(hass)
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# Resolve source entity device
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if (
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(source_entity is not None)
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and (source_entity.device_id is not None)
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and (
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(
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device := dev_reg.async_get(
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device_id=source_entity.device_id,
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)
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)
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is not None
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)
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):
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device_info = DeviceInfo(
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identifiers=device.identifiers,
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connections=device.connections,
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)
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else:
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device_info = None
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tariff_select = TariffSelect(
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name,
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tariffs,
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unique_id,
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device_info=device_info,
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)
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async_add_entities([tariff_select])
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async def async_setup_platform(
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hass: HomeAssistant,
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conf: ConfigType,
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async_add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Set up the utility meter select."""
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if discovery_info is None:
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_LOGGER.error(
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"This platform is not available to configure "
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"from 'select:' in configuration.yaml"
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)
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return
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meter: str = discovery_info[CONF_METER]
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conf_meter_unique_id: str | None = hass.data[DATA_UTILITY][meter].get(
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CONF_UNIQUE_ID
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)
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async_add_entities(
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[
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TariffSelect(
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meter,
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discovery_info[CONF_TARIFFS],
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conf_meter_unique_id,
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)
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]
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)
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class TariffSelect(SelectEntity, RestoreEntity):
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"""Representation of a Tariff selector."""
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_attr_translation_key = "tariff"
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def __init__(
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self,
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name,
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tariffs,
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unique_id,
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device_info: DeviceInfo | None = None,
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) -> None:
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"""Initialize a tariff selector."""
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self._attr_name = name
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self._attr_unique_id = unique_id
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self._attr_device_info = device_info
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self._current_tariff: str | None = None
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self._tariffs = tariffs
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self._attr_should_poll = False
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@property
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def options(self) -> list[str]:
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"""Return the available tariffs."""
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return self._tariffs
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@property
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def current_option(self) -> str | None:
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"""Return current tariff."""
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return self._current_tariff
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async def async_added_to_hass(self) -> None:
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"""Run when entity about to be added."""
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await super().async_added_to_hass()
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state = await self.async_get_last_state()
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if not state or state.state not in self._tariffs:
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self._current_tariff = self._tariffs[0]
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else:
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self._current_tariff = state.state
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async def async_select_option(self, option: str) -> None:
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"""Select new tariff (option)."""
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self._current_tariff = option
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self.async_write_ha_state()
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