Add switch platform to LaMetric (#79759)

* Add switch platform to LaMetric

* Little naming tweak

homeassistant/components/lametric/const.py

@@ -7,7 +7,7 @@ from typing import Final
 from homeassistant.const import Platform
 
 DOMAIN: Final = "lametric"
-PLATFORMS = [Platform.BUTTON, Platform.NUMBER]
+PLATFORMS = [Platform.BUTTON, Platform.NUMBER, Platform.SWITCH]
 
 LOGGER = logging.getLogger(__package__)
 SCAN_INTERVAL = timedelta(seconds=30)

homeassistant/components/lametric/switch.py

@@ -0,0 +1,102 @@
+"""Support for LaMetric switches."""
+from __future__ import annotations
+
+from collections.abc import Awaitable, Callable
+from dataclasses import dataclass
+from typing import Any
+
+from demetriek import Device, LaMetricDevice
+
+from homeassistant.components.switch import SwitchEntity, SwitchEntityDescription
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity import EntityCategory
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from .const import DOMAIN
+from .coordinator import LaMetricDataUpdateCoordinator
+from .entity import LaMetricEntity
+
+
+@dataclass
+class LaMetricEntityDescriptionMixin:
+    """Mixin values for LaMetric entities."""
+
+    is_on_fn: Callable[[Device], bool]
+    set_fn: Callable[[LaMetricDevice, bool], Awaitable[Any]]
+
+
+@dataclass
+class LaMetricSwitchEntityDescription(
+    SwitchEntityDescription, LaMetricEntityDescriptionMixin
+):
+    """Class describing LaMetric switch entities."""
+
+    available_fn: Callable[[Device], bool] = lambda device: True
+
+
+SWITCHES = [
+    LaMetricSwitchEntityDescription(
+        key="bluetooth",
+        name="Bluetooth",
+        icon="mdi:bluetooth",
+        entity_category=EntityCategory.CONFIG,
+        available_fn=lambda device: device.bluetooth.available,
+        is_on_fn=lambda device: device.bluetooth.active,
+        set_fn=lambda api, active: api.bluetooth(active=active),
+    ),
+]
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up LaMetric switch based on a config entry."""
+    coordinator: LaMetricDataUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
+    async_add_entities(
+        LaMetricSwitchEntity(
+            coordinator=coordinator,
+            description=description,
+        )
+        for description in SWITCHES
+    )
+
+
+class LaMetricSwitchEntity(LaMetricEntity, SwitchEntity):
+    """Representation of a LaMetric switch."""
+
+    entity_description: LaMetricSwitchEntityDescription
+
+    def __init__(
+        self,
+        coordinator: LaMetricDataUpdateCoordinator,
+        description: LaMetricSwitchEntityDescription,
+    ) -> None:
+        """Initiate LaMetric Switch."""
+        super().__init__(coordinator)
+        self.entity_description = description
+        self._attr_unique_id = f"{coordinator.data.serial_number}-{description.key}"
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        return super().available and self.entity_description.available_fn(
+            self.coordinator.data
+        )
+
+    @property
+    def is_on(self) -> bool:
+        """Return state of the switch."""
+        return self.entity_description.is_on_fn(self.coordinator.data)
+
+    async def async_turn_on(self, **kwargs: Any) -> None:
+        """Turn the entity on."""
+        await self.entity_description.set_fn(self.coordinator.lametric, True)
+        await self.coordinator.async_request_refresh()
+
+    async def async_turn_off(self, **kwargs: Any) -> None:
+        """Turn the entity off."""
+        await self.entity_description.set_fn(self.coordinator.lametric, False)
+        await self.coordinator.async_request_refresh()

tests/components/lametric/test_switch.py

@@ -0,0 +1,89 @@
+"""Tests for the LaMetric switch platform."""
+from unittest.mock import MagicMock
+
+from homeassistant.components.lametric.const import DOMAIN, SCAN_INTERVAL
+from homeassistant.components.switch import (
+    DOMAIN as SWITCH_DOMAIN,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
+)
+from homeassistant.const import (
+    ATTR_DEVICE_CLASS,
+    ATTR_ENTITY_ID,
+    ATTR_FRIENDLY_NAME,
+    ATTR_ICON,
+    STATE_OFF,
+    STATE_UNAVAILABLE,
+)
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import device_registry as dr, entity_registry as er
+from homeassistant.helpers.entity import EntityCategory
+import homeassistant.util.dt as dt_util
+
+from tests.common import MockConfigEntry, async_fire_time_changed
+
+
+async def test_bluetooth(
+    hass: HomeAssistant,
+    init_integration: MockConfigEntry,
+    mock_lametric: MagicMock,
+) -> None:
+    """Test the LaMetric Bluetooth control."""
+    device_registry = dr.async_get(hass)
+    entity_registry = er.async_get(hass)
+
+    state = hass.states.get("switch.frenck_s_lametric_bluetooth")
+    assert state
+    assert state.attributes.get(ATTR_DEVICE_CLASS) is None
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frenck's LaMetric Bluetooth"
+    assert state.attributes.get(ATTR_ICON) == "mdi:bluetooth"
+    assert state.state == STATE_OFF
+
+    entry = entity_registry.async_get(state.entity_id)
+    assert entry
+    assert entry.device_id
+    assert entry.entity_category is EntityCategory.CONFIG
+    assert entry.unique_id == "SA110405124500W00BS9-bluetooth"
+
+    device = device_registry.async_get(entry.device_id)
+    assert device
+    assert device.configuration_url is None
+    assert device.connections == {(dr.CONNECTION_NETWORK_MAC, "aa:bb:cc:dd:ee:ff")}
+    assert device.entry_type is None
+    assert device.hw_version is None
+    assert device.identifiers == {(DOMAIN, "SA110405124500W00BS9")}
+    assert device.manufacturer == "LaMetric Inc."
+    assert device.name == "Frenck's LaMetric"
+    assert device.sw_version == "2.2.2"
+
+    await hass.services.async_call(
+        SWITCH_DOMAIN,
+        SERVICE_TURN_ON,
+        {
+            ATTR_ENTITY_ID: "switch.frenck_s_lametric_bluetooth",
+        },
+        blocking=True,
+    )
+
+    assert len(mock_lametric.bluetooth.mock_calls) == 1
+    mock_lametric.bluetooth.assert_called_once_with(active=True)
+
+    await hass.services.async_call(
+        SWITCH_DOMAIN,
+        SERVICE_TURN_OFF,
+        {
+            ATTR_ENTITY_ID: "switch.frenck_s_lametric_bluetooth",
+        },
+        blocking=True,
+    )
+
+    assert len(mock_lametric.bluetooth.mock_calls) == 2
+    mock_lametric.bluetooth.assert_called_with(active=False)
+
+    mock_lametric.device.return_value.bluetooth.available = False
+    async_fire_time_changed(hass, dt_util.utcnow() + SCAN_INTERVAL)
+    await hass.async_block_till_done()
+
+    state = hass.states.get("switch.frenck_s_lametric_bluetooth")
+    assert state
+    assert state.state == STATE_UNAVAILABLE