core/homeassistant/components/number/__init__.py

153 lines
4.3 KiB
Python

"""Component to allow numeric input for platforms."""
from __future__ import annotations
from dataclasses import dataclass
from datetime import timedelta
import logging
from typing import Any, Literal, final
import voluptuous as vol
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import ATTR_MODE
from homeassistant.core import HomeAssistant, ServiceCall
from homeassistant.helpers.config_validation import ( # noqa: F401
PLATFORM_SCHEMA,
PLATFORM_SCHEMA_BASE,
)
from homeassistant.helpers.entity import Entity, EntityDescription
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.typing import ConfigType
from .const import (
ATTR_MAX,
ATTR_MIN,
ATTR_STEP,
ATTR_VALUE,
DEFAULT_MAX_VALUE,
DEFAULT_MIN_VALUE,
DEFAULT_STEP,
DOMAIN,
MODE_AUTO,
SERVICE_SET_VALUE,
)
SCAN_INTERVAL = timedelta(seconds=30)
ENTITY_ID_FORMAT = DOMAIN + ".{}"
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
_LOGGER = logging.getLogger(__name__)
async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
"""Set up Number entities."""
component = hass.data[DOMAIN] = EntityComponent(
_LOGGER, DOMAIN, hass, SCAN_INTERVAL
)
await component.async_setup(config)
component.async_register_entity_service(
SERVICE_SET_VALUE,
{vol.Required(ATTR_VALUE): vol.Coerce(float)},
async_set_value,
)
return True
async def async_set_value(entity: NumberEntity, service_call: ServiceCall) -> None:
"""Service call wrapper to set a new value."""
value = service_call.data["value"]
if value < entity.min_value or value > entity.max_value:
raise ValueError(
f"Value {value} for {entity.name} is outside valid range {entity.min_value} - {entity.max_value}"
)
await entity.async_set_value(value)
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Set up a config entry."""
component: EntityComponent = hass.data[DOMAIN]
return await component.async_setup_entry(entry)
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Unload a config entry."""
component: EntityComponent = hass.data[DOMAIN]
return await component.async_unload_entry(entry)
@dataclass
class NumberEntityDescription(EntityDescription):
"""A class that describes number entities."""
class NumberEntity(Entity):
"""Representation of a Number entity."""
entity_description: NumberEntityDescription
_attr_max_value: float = DEFAULT_MAX_VALUE
_attr_min_value: float = DEFAULT_MIN_VALUE
_attr_state: None = None
_attr_step: float
_attr_mode: Literal["auto", "slider", "box"] = MODE_AUTO
_attr_value: float
@property
def capability_attributes(self) -> dict[str, Any]:
"""Return capability attributes."""
return {
ATTR_MIN: self.min_value,
ATTR_MAX: self.max_value,
ATTR_STEP: self.step,
ATTR_MODE: self.mode,
}
@property
def min_value(self) -> float:
"""Return the minimum value."""
return self._attr_min_value
@property
def max_value(self) -> float:
"""Return the maximum value."""
return self._attr_max_value
@property
def step(self) -> float:
"""Return the increment/decrement step."""
if hasattr(self, "_attr_step"):
return self._attr_step
step = DEFAULT_STEP
value_range = abs(self.max_value - self.min_value)
if value_range != 0:
while value_range <= step:
step /= 10.0
return step
@property
def mode(self) -> Literal["auto", "slider", "box"]:
"""Return the mode of the entity."""
return self._attr_mode
@property
@final
def state(self) -> float | None:
"""Return the entity state."""
return self.value
@property
def value(self) -> float | None:
"""Return the entity value to represent the entity state."""
return self._attr_value
def set_value(self, value: float) -> None:
"""Set new value."""
raise NotImplementedError()
async def async_set_value(self, value: float) -> None:
"""Set new value."""
await self.hass.async_add_executor_job(self.set_value, value)