core/homeassistant/components/ping/binary_sensor.py

"""Tracks the latency of a host by sending ICMP echo requests (ping)."""

from __future__ import annotations

from typing import Any

from homeassistant.components.binary_sensor import (
    BinarySensorDeviceClass,
    BinarySensorEntity,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from . import PingConfigEntry
from .const import CONF_IMPORTED_BY
from .coordinator import PingUpdateCoordinator
from .entity import PingEntity

ATTR_ROUND_TRIP_TIME_AVG = "round_trip_time_avg"
ATTR_ROUND_TRIP_TIME_MAX = "round_trip_time_max"
ATTR_ROUND_TRIP_TIME_MDEV = "round_trip_time_mdev"
ATTR_ROUND_TRIP_TIME_MIN = "round_trip_time_min"


async def async_setup_entry(
    hass: HomeAssistant, entry: PingConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
    """Set up a Ping config entry."""
    async_add_entities([PingBinarySensor(entry, entry.runtime_data)])


class PingBinarySensor(PingEntity, BinarySensorEntity):
    """Representation of a Ping Binary sensor."""

    _attr_device_class = BinarySensorDeviceClass.CONNECTIVITY
    _attr_available = False
    _attr_name = None

    def __init__(
        self, config_entry: ConfigEntry, coordinator: PingUpdateCoordinator
    ) -> None:
        """Initialize the Ping Binary sensor."""
        super().__init__(config_entry, coordinator, config_entry.entry_id)

        # if this was imported just enable it when it was enabled before
        if CONF_IMPORTED_BY in config_entry.data:
            self._attr_entity_registry_enabled_default = bool(
                config_entry.data[CONF_IMPORTED_BY] == "binary_sensor"
            )

    @property
    def is_on(self) -> bool:
        """Return true if the binary sensor is on."""
        return self.coordinator.data.is_alive

    @property
    def extra_state_attributes(self) -> dict[str, Any] | None:
        """Return the state attributes of the ICMP checo request."""
        return {
            ATTR_ROUND_TRIP_TIME_AVG: self.coordinator.data.data.get("avg"),
            ATTR_ROUND_TRIP_TIME_MAX: self.coordinator.data.data.get("max"),
            ATTR_ROUND_TRIP_TIME_MDEV: self.coordinator.data.data.get("mdev"),
            ATTR_ROUND_TRIP_TIME_MIN: self.coordinator.data.data.get("min"),
        }