core/homeassistant/components/jellyfin/sensor.py

76 lines
2.2 KiB
Python

"""Support for Jellyfin sensors."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from typing import Any
from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import StateType
from . import JellyfinConfigEntry, JellyfinDataUpdateCoordinator
from .entity import JellyfinServerEntity
@dataclass(frozen=True, kw_only=True)
class JellyfinSensorEntityDescription(SensorEntityDescription):
"""Describes Jellyfin sensor entity."""
value_fn: Callable[[dict[str, dict[str, Any]]], StateType]
def _count_now_playing(data: dict[str, dict[str, Any]]) -> 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: tuple[JellyfinSensorEntityDescription, ...] = (
JellyfinSensorEntityDescription(
key="watching",
translation_key="watching",
value_fn=_count_now_playing,
native_unit_of_measurement="clients",
),
)
async def async_setup_entry(
hass: HomeAssistant,
entry: JellyfinConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up Jellyfin sensor based on a config entry."""
coordinator = entry.runtime_data
async_add_entities(
JellyfinServerSensor(coordinator, description) for description in SENSOR_TYPES
)
class JellyfinServerSensor(JellyfinServerEntity, SensorEntity):
"""Defines a Jellyfin sensor entity."""
entity_description: JellyfinSensorEntityDescription
def __init__(
self,
coordinator: JellyfinDataUpdateCoordinator,
description: JellyfinSensorEntityDescription,
) -> None:
"""Initialize Jellyfin sensor."""
super().__init__(coordinator)
self.entity_description = description
self._attr_unique_id = f"{coordinator.server_id}-{description.key}"
@property
def native_value(self) -> StateType:
"""Return the state of the sensor."""
return self.entity_description.value_fn(self.coordinator.data)