Update plugwise to async and config_flow switch part

.coveragerc

@@ -607,6 +607,7 @@ omit =
     homeassistant/components/plugwise/binary_sensor.py
     homeassistant/components/plugwise/climate.py
     homeassistant/components/plugwise/sensor.py
+    homeassistant/components/plugwise/switch.py
     homeassistant/components/plum_lightpad/*
     homeassistant/components/pocketcasts/sensor.py
     homeassistant/components/point/*

homeassistant/components/plugwise/__init__.py

@@ -24,7 +24,7 @@
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_PLATFORMS = ["sensor"]
-ALL_PLATFORMS = ["binary_sensor", "climate", "sensor"]
+ALL_PLATFORMS = ["binary_sensor", "climate", "sensor", "switch"]
 
 
 async def async_setup(hass: HomeAssistant, config: dict):

homeassistant/components/plugwise/switch.py

@@ -0,0 +1,84 @@
+"""Plugwise Switch component for HomeAssistant."""
+
+import logging
+
+from Plugwise_Smile.Smile import Smile
+
+from homeassistant.components.switch import SwitchEntity
+from homeassistant.core import callback
+
+from . import SmileGateway
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up the Smile switches from a config entry."""
+    api = hass.data[DOMAIN][config_entry.entry_id]["api"]
+    coordinator = hass.data[DOMAIN][config_entry.entry_id]["coordinator"]
+
+    entities = []
+    all_devices = api.get_all_devices()
+    for dev_id, device_properties in all_devices.items():
+        if "plug" in device_properties["types"]:
+            model = "Metered Switch"
+            entities.append(
+                PwSwitch(api, coordinator, device_properties["name"], dev_id, model)
+            )
+
+    async_add_entities(entities, True)
+
+
+class PwSwitch(SmileGateway, SwitchEntity):
+    """Representation of a Plugwise plug."""
+
+    def __init__(self, api, coordinator, name, dev_id, model):
+        """Set up the Plugwise API."""
+        super().__init__(api, coordinator, name, dev_id)
+
+        self._model = model
+
+        self._is_on = False
+
+        self._unique_id = f"{dev_id}-plug"
+
+    @property
+    def is_on(self):
+        """Return true if device is on."""
+        return self._is_on
+
+    async def async_turn_on(self, **kwargs):
+        """Turn the device on."""
+        try:
+            if await self._api.set_relay_state(self._dev_id, "on"):
+                self._is_on = True
+                self.async_write_ha_state()
+        except Smile.PlugwiseError:
+            _LOGGER.error("Error while communicating to device")
+
+    async def async_turn_off(self, **kwargs):
+        """Turn the device off."""
+        try:
+            if await self._api.set_relay_state(self._dev_id, "off"):
+                self._is_on = False
+                self.async_write_ha_state()
+        except Smile.PlugwiseError:
+            _LOGGER.error("Error while communicating to device")
+
+    @callback
+    def _async_process_data(self):
+        """Update the data from the Plugs."""
+        _LOGGER.debug("Update switch called")
+
+        data = self._api.get_device_data(self._dev_id)
+
+        if not data:
+            _LOGGER.error("Received no data for device %s.", self._name)
+            self.async_write_ha_state()
+            return
+
+        if "relay" in data:
+            self._is_on = data["relay"]
+
+        self.async_write_ha_state()