core/homeassistant/components/onewire/switch.py

"""Support for 1-Wire environment switches."""

from __future__ import annotations

from dataclasses import dataclass
import os
from typing import Any

from homeassistant.components.switch import SwitchEntity, SwitchEntityDescription
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from . import OneWireConfigEntry
from .const import DEVICE_KEYS_0_3, DEVICE_KEYS_0_7, DEVICE_KEYS_A_B, READ_MODE_BOOL
from .entity import OneWireEntity, OneWireEntityDescription
from .onewirehub import OneWireHub


@dataclass(frozen=True)
class OneWireSwitchEntityDescription(OneWireEntityDescription, SwitchEntityDescription):
    """Class describing OneWire switch entities."""


DEVICE_SWITCHES: dict[str, tuple[OneWireEntityDescription, ...]] = {
    "05": (
        OneWireSwitchEntityDescription(
            key="PIO",
            entity_registry_enabled_default=False,
            read_mode=READ_MODE_BOOL,
            translation_key="pio",
        ),
    ),
    "12": tuple(
        [
            OneWireSwitchEntityDescription(
                key=f"PIO.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                translation_key="pio_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_A_B
        ]
        + [
            OneWireSwitchEntityDescription(
                key=f"latch.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                translation_key="latch_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_A_B
        ]
    ),
    "26": (
        OneWireSwitchEntityDescription(
            key="IAD",
            entity_registry_enabled_default=False,
            entity_category=EntityCategory.CONFIG,
            read_mode=READ_MODE_BOOL,
            translation_key="iad",
        ),
    ),
    "29": tuple(
        [
            OneWireSwitchEntityDescription(
                key=f"PIO.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                translation_key="pio_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_0_7
        ]
        + [
            OneWireSwitchEntityDescription(
                key=f"latch.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                translation_key="latch_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_0_7
        ]
    ),
    "3A": tuple(
        OneWireSwitchEntityDescription(
            key=f"PIO.{device_key}",
            entity_registry_enabled_default=False,
            read_mode=READ_MODE_BOOL,
            translation_key="pio_id",
            translation_placeholders={"id": str(device_key)},
        )
        for device_key in DEVICE_KEYS_A_B
    ),
    "EF": (),  # "HobbyBoard": special
}

# EF sensors are usually hobbyboards specialized sensors.

HOBBYBOARD_EF: dict[str, tuple[OneWireEntityDescription, ...]] = {
    "HB_HUB": tuple(
        OneWireSwitchEntityDescription(
            key=f"hub/branch.{device_key}",
            entity_registry_enabled_default=False,
            read_mode=READ_MODE_BOOL,
            entity_category=EntityCategory.CONFIG,
            translation_key="hub_branch_id",
            translation_placeholders={"id": str(device_key)},
        )
        for device_key in DEVICE_KEYS_0_3
    ),
    "HB_MOISTURE_METER": tuple(
        [
            OneWireSwitchEntityDescription(
                key=f"moisture/is_leaf.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                entity_category=EntityCategory.CONFIG,
                translation_key="leaf_sensor_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_0_3
        ]
        + [
            OneWireSwitchEntityDescription(
                key=f"moisture/is_moisture.{device_key}",
                entity_registry_enabled_default=False,
                read_mode=READ_MODE_BOOL,
                entity_category=EntityCategory.CONFIG,
                translation_key="moisture_sensor_id",
                translation_placeholders={"id": str(device_key)},
            )
            for device_key in DEVICE_KEYS_0_3
        ]
    ),
}


def get_sensor_types(
    device_sub_type: str,
) -> dict[str, tuple[OneWireEntityDescription, ...]]:
    """Return the proper info array for the device type."""
    if "HobbyBoard" in device_sub_type:
        return HOBBYBOARD_EF
    return DEVICE_SWITCHES


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: OneWireConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up 1-Wire platform."""
    entities = await hass.async_add_executor_job(
        get_entities, config_entry.runtime_data
    )
    async_add_entities(entities, True)


def get_entities(onewire_hub: OneWireHub) -> list[OneWireSwitch]:
    """Get a list of entities."""
    if not onewire_hub.devices:
        return []

    entities: list[OneWireSwitch] = []

    for device in onewire_hub.devices:
        family = device.family
        device_type = device.type
        device_id = device.id
        device_info = device.device_info
        device_sub_type = "std"
        if device_type and "EF" in family:
            device_sub_type = "HobbyBoard"
            family = device_type
        elif "A6" in family:
            # A6 is a secondary family code for DS2438
            family = "26"

        if family not in get_sensor_types(device_sub_type):
            continue
        for description in get_sensor_types(device_sub_type)[family]:
            device_file = os.path.join(os.path.split(device.path)[0], description.key)
            entities.append(
                OneWireSwitch(
                    description=description,
                    device_id=device_id,
                    device_file=device_file,
                    device_info=device_info,
                    owproxy=onewire_hub.owproxy,
                )
            )

    return entities


class OneWireSwitch(OneWireEntity, SwitchEntity):
    """Implementation of a 1-Wire switch."""

    entity_description: OneWireSwitchEntityDescription

    @property
    def is_on(self) -> bool | None:
        """Return true if switch is on."""
        if self._state is None:
            return None
        return bool(self._state)

    def turn_on(self, **kwargs: Any) -> None:
        """Turn the entity on."""
        self._write_value(b"1")

    def turn_off(self, **kwargs: Any) -> None:
        """Turn the entity off."""
        self._write_value(b"0")