295 lines
9.8 KiB
Python
295 lines
9.8 KiB
Python
"""The kraken integration."""
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from __future__ import annotations
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from collections.abc import Callable
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from dataclasses import dataclass
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import logging
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from homeassistant.components.sensor import (
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SensorEntity,
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SensorEntityDescription,
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SensorStateClass,
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)
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers import device_registry as dr
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.update_coordinator import (
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CoordinatorEntity,
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DataUpdateCoordinator,
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)
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from . import KrakenData
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from .const import (
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CONF_TRACKED_ASSET_PAIRS,
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DISPATCH_CONFIG_UPDATED,
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DOMAIN,
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KrakenResponse,
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)
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_LOGGER = logging.getLogger(__name__)
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@dataclass(frozen=True, kw_only=True)
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class KrakenSensorEntityDescription(SensorEntityDescription):
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"""Describes Kraken sensor entity."""
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value_fn: Callable[[DataUpdateCoordinator[KrakenResponse], str], float | int]
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SENSOR_TYPES: tuple[KrakenSensorEntityDescription, ...] = (
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KrakenSensorEntityDescription(
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key="ask",
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translation_key="ask",
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value_fn=lambda x, y: x.data[y]["ask"][0],
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),
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KrakenSensorEntityDescription(
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key="ask_volume",
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translation_key="ask_volume",
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value_fn=lambda x, y: x.data[y]["ask"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="bid",
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translation_key="bid",
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value_fn=lambda x, y: x.data[y]["bid"][0],
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),
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KrakenSensorEntityDescription(
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key="bid_volume",
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translation_key="bid_volume",
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value_fn=lambda x, y: x.data[y]["bid"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="volume_today",
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translation_key="volume_today",
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value_fn=lambda x, y: x.data[y]["volume"][0],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="volume_last_24h",
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translation_key="volume_last_24h",
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value_fn=lambda x, y: x.data[y]["volume"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="volume_weighted_average_today",
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translation_key="volume_weighted_average_today",
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value_fn=lambda x, y: x.data[y]["volume_weighted_average"][0],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="volume_weighted_average_last_24h",
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translation_key="volume_weighted_average_last_24h",
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value_fn=lambda x, y: x.data[y]["volume_weighted_average"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="number_of_trades_today",
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translation_key="number_of_trades_today",
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value_fn=lambda x, y: x.data[y]["number_of_trades"][0],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="number_of_trades_last_24h",
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translation_key="number_of_trades_last_24h",
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value_fn=lambda x, y: x.data[y]["number_of_trades"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="last_trade_closed",
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translation_key="last_trade_closed",
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value_fn=lambda x, y: x.data[y]["last_trade_closed"][0],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="low_today",
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translation_key="low_today",
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value_fn=lambda x, y: x.data[y]["low"][0],
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),
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KrakenSensorEntityDescription(
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key="low_last_24h",
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translation_key="low_last_24h",
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value_fn=lambda x, y: x.data[y]["low"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="high_today",
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translation_key="high_today",
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value_fn=lambda x, y: x.data[y]["high"][0],
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),
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KrakenSensorEntityDescription(
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key="high_last_24h",
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translation_key="high_last_24h",
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value_fn=lambda x, y: x.data[y]["high"][1],
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entity_registry_enabled_default=False,
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),
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KrakenSensorEntityDescription(
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key="opening_price_today",
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translation_key="opening_price_today",
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value_fn=lambda x, y: x.data[y]["opening_price"],
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entity_registry_enabled_default=False,
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),
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)
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async def async_setup_entry(
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hass: HomeAssistant,
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config_entry: ConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Add kraken entities from a config_entry."""
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def _async_add_kraken_sensors(tracked_asset_pairs: list[str]) -> None:
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entities = []
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for tracked_asset_pair in tracked_asset_pairs:
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entities.extend(
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[
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KrakenSensor(
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hass.data[DOMAIN],
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tracked_asset_pair,
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description,
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)
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for description in SENSOR_TYPES
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]
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)
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async_add_entities(entities, True)
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_async_add_kraken_sensors(config_entry.options[CONF_TRACKED_ASSET_PAIRS])
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@callback
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def async_update_sensors(hass: HomeAssistant, config_entry: ConfigEntry) -> None:
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"""Add or remove sensors for configured tracked asset pairs."""
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dev_reg = dr.async_get(hass)
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existing_devices = {
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device.name: device.id
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for device in dr.async_entries_for_config_entry(
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dev_reg, config_entry.entry_id
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)
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}
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asset_pairs_to_add = []
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for tracked_asset_pair in config_entry.options[CONF_TRACKED_ASSET_PAIRS]:
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# Only create new devices
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if (
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device_name := create_device_name(tracked_asset_pair)
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) in existing_devices:
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existing_devices.pop(device_name)
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else:
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asset_pairs_to_add.append(tracked_asset_pair)
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_async_add_kraken_sensors(asset_pairs_to_add)
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# Remove devices for asset pairs which are no longer tracked
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for device_id in existing_devices.values():
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dev_reg.async_remove_device(device_id)
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config_entry.async_on_unload(
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async_dispatcher_connect(
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hass,
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DISPATCH_CONFIG_UPDATED,
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async_update_sensors,
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)
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)
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class KrakenSensor(
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CoordinatorEntity[DataUpdateCoordinator[KrakenResponse | None]], SensorEntity
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):
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"""Define a Kraken sensor."""
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entity_description: KrakenSensorEntityDescription
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_attr_state_class = SensorStateClass.MEASUREMENT
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_attr_has_entity_name = True
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def __init__(
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self,
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kraken_data: KrakenData,
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tracked_asset_pair: str,
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description: KrakenSensorEntityDescription,
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) -> None:
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"""Initialize."""
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assert kraken_data.coordinator is not None
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super().__init__(kraken_data.coordinator)
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self.entity_description = description
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self.tracked_asset_pair_wsname = kraken_data.tradable_asset_pairs[
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tracked_asset_pair
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]
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self._target_asset = tracked_asset_pair.split("/")[1]
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if "number_of" not in description.key:
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self._attr_native_unit_of_measurement = self._target_asset
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self._device_name = create_device_name(tracked_asset_pair)
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self._attr_unique_id = "_".join(
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[
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tracked_asset_pair.split("/")[0],
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tracked_asset_pair.split("/")[1],
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description.key,
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]
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).lower()
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self._received_data_at_least_once = False
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self._available = True
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self._attr_device_info = DeviceInfo(
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configuration_url="https://www.kraken.com/",
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entry_type=dr.DeviceEntryType.SERVICE,
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identifiers={(DOMAIN, "_".join(self._device_name.split(" ")))},
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manufacturer="Kraken.com",
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name=self._device_name,
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)
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async def async_added_to_hass(self) -> None:
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"""Handle entity which will be added."""
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await super().async_added_to_hass()
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self._update_internal_state()
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def _handle_coordinator_update(self) -> None:
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self._update_internal_state()
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super()._handle_coordinator_update()
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def _update_internal_state(self) -> None:
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if not self.coordinator.data:
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return
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try:
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self._attr_native_value = self.entity_description.value_fn(
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self.coordinator, # type: ignore[arg-type]
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self.tracked_asset_pair_wsname,
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)
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self._received_data_at_least_once = True
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except KeyError:
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if self._received_data_at_least_once:
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if self._available:
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_LOGGER.warning(
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"Asset Pair %s is no longer available",
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self._device_name,
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)
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self._available = False
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@property
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def icon(self) -> str:
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"""Return the icon."""
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if self._target_asset == "EUR":
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return "mdi:currency-eur"
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if self._target_asset == "GBP":
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return "mdi:currency-gbp"
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if self._target_asset == "USD":
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return "mdi:currency-usd"
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if self._target_asset == "JPY":
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return "mdi:currency-jpy"
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if self._target_asset == "XBT":
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return "mdi:currency-btc"
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return "mdi:cash"
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@property
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def available(self) -> bool:
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"""Could the api be accessed during the last update call."""
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return self._available and self.coordinator.last_update_success
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def create_device_name(tracked_asset_pair: str) -> str:
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"""Create the device name for a given tracked asset pair."""
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return f"{tracked_asset_pair.split('/')[0]} {tracked_asset_pair.split('/')[1]}"
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