mirror of
https://github.com/jdejaegh/irm-kmi-ha.git
synced 2025-06-27 11:39:26 +02:00
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
"""Create a radar view for IRM KMI weather"""
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import logging
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from aiohttp import web
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from homeassistant.components.camera import Camera, async_get_still_stream
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.device_registry import DeviceEntryType, DeviceInfo
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.update_coordinator import CoordinatorEntity
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from . import IrmKmiCoordinator
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback):
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"""Set up the camera entry."""
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coordinator = hass.data[DOMAIN][entry.entry_id]
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async_add_entities([IrmKmiRadar(coordinator, entry)])
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class IrmKmiRadar(CoordinatorEntity, Camera):
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"""Representation of a radar view camera."""
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def __init__(self,
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coordinator: IrmKmiCoordinator,
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entry: ConfigEntry,
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) -> None:
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"""Initialize IrmKmiRadar component."""
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super().__init__(coordinator)
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Camera.__init__(self)
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self._name = f"Radar {entry.title}"
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self._attr_unique_id = entry.entry_id
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self._attr_device_info = DeviceInfo(
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entry_type=DeviceEntryType.SERVICE,
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identifiers={(DOMAIN, entry.entry_id)},
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manufacturer="IRM KMI",
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name=f"Radar {entry.title}"
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)
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self._image_index = 0
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@property
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def frame_interval(self) -> float:
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"""Return the interval between frames of the mjpeg stream."""
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return 0.3
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def camera_image(self,
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width: int | None = None,
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height: int | None = None) -> bytes | None:
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"""Return still image to be used as thumbnail."""
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return self.coordinator.data.get('animation', {}).get('most_recent_image')
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async def async_camera_image(
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self,
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width: int | None = None,
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height: int | None = None
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) -> bytes | None:
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"""Return still image to be used as thumbnail."""
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return self.camera_image()
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async def handle_async_still_stream(self, request: web.Request, interval: float) -> web.StreamResponse:
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"""Generate an HTTP MJPEG stream from camera images."""
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self._image_index = 0
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return await async_get_still_stream(request, self.iterate, self.content_type, interval)
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async def handle_async_mjpeg_stream(self, request: web.Request) -> web.StreamResponse:
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"""Serve an HTTP MJPEG stream from the camera."""
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return await self.handle_async_still_stream(request, self.frame_interval)
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async def iterate(self) -> bytes | None:
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"""Loop over all the frames when called multiple times."""
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sequence = self.coordinator.data.get('animation', {}).get('sequence')
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if isinstance(sequence, list) and len(sequence) > 0:
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r = sequence[self._image_index].get('image', None)
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self._image_index = (self._image_index + 1) % len(sequence)
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return r
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return None
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@property
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def name(self) -> str:
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"""Return the name of this camera."""
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return self._name
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@property
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def extra_state_attributes(self) -> dict:
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"""Return the camera state attributes."""
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attrs = {"hint": self.coordinator.data.get('animation', {}).get('hint')}
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return attrs
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