105 lines
3.0 KiB
Python
105 lines
3.0 KiB
Python
"""Support for showing random numbers."""
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from __future__ import annotations
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from collections.abc import Mapping
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from random import randrange
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from typing import Any
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import (
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CONF_DEVICE_CLASS,
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CONF_MAXIMUM,
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CONF_MINIMUM,
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CONF_NAME,
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CONF_UNIT_OF_MEASUREMENT,
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)
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from homeassistant.core import HomeAssistant
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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from .const import DEFAULT_MAX, DEFAULT_MIN
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ATTR_MAXIMUM = "maximum"
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ATTR_MINIMUM = "minimum"
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DEFAULT_NAME = "Random sensor"
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Optional(CONF_MAXIMUM, default=DEFAULT_MAX): cv.positive_int,
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vol.Optional(CONF_MINIMUM, default=DEFAULT_MIN): cv.positive_int,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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vol.Optional(CONF_UNIT_OF_MEASUREMENT): cv.string,
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}
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)
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async def async_setup_platform(
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hass: HomeAssistant,
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config: ConfigType,
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async_add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Set up the Random number sensor."""
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async_add_entities([RandomSensor(config)], True)
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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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"""Initialize config entry."""
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async_add_entities(
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[RandomSensor(config_entry.options, config_entry.entry_id)], True
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)
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class RandomSensor(SensorEntity):
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"""Representation of a Random number sensor."""
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_attr_icon = "mdi:hanger"
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_state: int | None = None
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def __init__(self, config: Mapping[str, Any], entry_id: str | None = None) -> None:
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"""Initialize the Random sensor."""
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self._name = config.get(CONF_NAME)
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self._minimum = config.get(CONF_MINIMUM, DEFAULT_MIN)
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self._maximum = config.get(CONF_MAXIMUM, DEFAULT_MAX)
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self._unit_of_measurement = config.get(CONF_UNIT_OF_MEASUREMENT)
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self._attr_device_class = config.get(CONF_DEVICE_CLASS)
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if entry_id:
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self._attr_unique_id = entry_id
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@property
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def name(self):
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"""Return the name of the device."""
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return self._name
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@property
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def native_value(self):
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"""Return the state of the device."""
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return self._state
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@property
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def native_unit_of_measurement(self):
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"""Return the unit this state is expressed in."""
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return self._unit_of_measurement
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@property
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def extra_state_attributes(self):
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"""Return the attributes of the sensor."""
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return {ATTR_MAXIMUM: self._maximum, ATTR_MINIMUM: self._minimum}
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async def async_update(self) -> None:
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"""Get a new number and updates the states."""
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self._state = randrange(self._minimum, self._maximum + 1)
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