core/homeassistant/components/aemet/image.py

87 lines
2.6 KiB
Python

"""Support for the AEMET OpenData images."""
from __future__ import annotations
from typing import Final
from aemet_opendata.const import AOD_DATETIME, AOD_IMG_BYTES, AOD_IMG_TYPE, AOD_RADAR
from aemet_opendata.helpers import dict_nested_value
from homeassistant.components.image import Image, ImageEntity, ImageEntityDescription
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .coordinator import AemetConfigEntry, WeatherUpdateCoordinator
from .entity import AemetEntity
AEMET_IMAGES: Final[tuple[ImageEntityDescription, ...]] = (
ImageEntityDescription(
key=AOD_RADAR,
translation_key="weather_radar",
),
)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: AemetConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up AEMET OpenData image entities based on a config entry."""
domain_data = config_entry.runtime_data
name = domain_data.name
coordinator = domain_data.coordinator
unique_id = config_entry.unique_id
assert unique_id is not None
async_add_entities(
AemetImage(
hass,
name,
coordinator,
description,
unique_id,
)
for description in AEMET_IMAGES
if dict_nested_value(coordinator.data["lib"], [description.key]) is not None
)
class AemetImage(AemetEntity, ImageEntity):
"""Implementation of an AEMET OpenData image."""
entity_description: ImageEntityDescription
def __init__(
self,
hass: HomeAssistant,
name: str,
coordinator: WeatherUpdateCoordinator,
description: ImageEntityDescription,
unique_id: str,
) -> None:
"""Initialize the image."""
super().__init__(coordinator, name, unique_id)
ImageEntity.__init__(self, hass)
self.entity_description = description
self._attr_unique_id = f"{unique_id}-{description.key}"
self._async_update_attrs()
@callback
def _handle_coordinator_update(self) -> None:
"""Update attributes when the coordinator updates."""
self._async_update_attrs()
super()._handle_coordinator_update()
@callback
def _async_update_attrs(self) -> None:
"""Update image attributes."""
image_data = self.get_aemet_value([self.entity_description.key])
self._cached_image = Image(
content_type=image_data.get(AOD_IMG_TYPE),
content=image_data.get(AOD_IMG_BYTES),
)
self._attr_image_last_updated = image_data.get(AOD_DATETIME)