core/homeassistant/components/jellyfin/sensor.py

75 lines
2.1 KiB
Python

"""Support for Jellyfin sensors."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import StateType
from .const import DOMAIN
from .coordinator import JellyfinDataT
from .entity import JellyfinEntity
from .models import JellyfinData
@dataclass
class JellyfinSensorEntityDescriptionMixin:
"""Mixin for required keys."""
value_fn: Callable[[JellyfinDataT], StateType]
@dataclass
class JellyfinSensorEntityDescription(
SensorEntityDescription, JellyfinSensorEntityDescriptionMixin
):
"""Describes Jellyfin sensor entity."""
def _count_now_playing(data: JellyfinDataT) -> int:
"""Count the number of now playing."""
session_ids = [
sid for (sid, session) in data.items() if "NowPlayingItem" in session
]
return len(session_ids)
SENSOR_TYPES: dict[str, JellyfinSensorEntityDescription] = {
"sessions": JellyfinSensorEntityDescription(
key="watching",
icon="mdi:television-play",
native_unit_of_measurement="Watching",
value_fn=_count_now_playing,
)
}
async def async_setup_entry(
hass: HomeAssistant,
entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up Jellyfin sensor based on a config entry."""
jellyfin_data: JellyfinData = hass.data[DOMAIN][entry.entry_id]
async_add_entities(
JellyfinSensor(jellyfin_data.coordinators[coordinator_type], description)
for coordinator_type, description in SENSOR_TYPES.items()
)
class JellyfinSensor(JellyfinEntity, SensorEntity):
"""Defines a Jellyfin sensor entity."""
entity_description: JellyfinSensorEntityDescription
@property
def native_value(self) -> StateType:
"""Return the state of the sensor."""
return self.entity_description.value_fn(self.coordinator.data)