66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
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"""The Tesla Powerwall integration base entity."""
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from homeassistant.helpers.entity import Entity
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from .const import (
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DOMAIN,
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MANUFACTURER,
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MODEL,
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POWERWALL_SITE_NAME,
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SITE_INFO_GRID_CODE,
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SITE_INFO_NOMINAL_SYSTEM_ENERGY_KWH,
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SITE_INFO_UTILITY,
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)
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class PowerWallEntity(Entity):
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"""Base class for powerwall entities."""
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def __init__(self, coordinator, site_info):
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"""Initialize the sensor."""
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super().__init__()
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self._coordinator = coordinator
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self._site_info = site_info
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# This group of properties will be unique to to the site
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unique_group = (
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site_info[SITE_INFO_UTILITY],
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site_info[SITE_INFO_GRID_CODE],
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str(site_info[SITE_INFO_NOMINAL_SYSTEM_ENERGY_KWH]),
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)
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self.base_unique_id = "_".join(unique_group)
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@property
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def device_info(self):
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"""Powerwall device info."""
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return {
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"identifiers": {(DOMAIN, self.base_unique_id)},
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"name": self._site_info[POWERWALL_SITE_NAME],
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"manufacturer": MANUFACTURER,
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"model": MODEL,
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}
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@property
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def available(self):
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"""Return True if entity is available."""
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return self._coordinator.last_update_success
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@property
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def should_poll(self):
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"""Return False, updates are controlled via coordinator."""
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return False
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async def async_update(self):
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"""Update the entity.
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Only used by the generic entity update service.
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"""
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await self._coordinator.async_request_refresh()
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async def async_added_to_hass(self):
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"""Subscribe to updates."""
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self._coordinator.async_add_listener(self.async_write_ha_state)
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async def async_will_remove_from_hass(self):
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"""Undo subscription."""
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self._coordinator.async_remove_listener(self.async_write_ha_state)
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