Add select platform to ADS integration (#125892)

* Add ADS Select integration

* fix: review feedback.

homeassistant/components/ads/select.py

@@ -0,0 +1,86 @@
+"""Support for ADS select entities."""
+
+from __future__ import annotations
+
+import pyads
+import voluptuous as vol
+
+from homeassistant.components.select import (
+    PLATFORM_SCHEMA as SELECT_PLATFORM_SCHEMA,
+    SelectEntity,
+)
+from homeassistant.const import CONF_NAME
+from homeassistant.core import HomeAssistant
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
+
+from .const import CONF_ADS_VAR, DATA_ADS
+from .entity import AdsEntity
+from .hub import AdsHub
+
+DEFAULT_NAME = "ADS select"
+
+CONF_OPTIONS = "options"
+
+PLATFORM_SCHEMA = SELECT_PLATFORM_SCHEMA.extend(
+    {
+        vol.Required(CONF_ADS_VAR): cv.string,
+        vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+        vol.Required(CONF_OPTIONS): vol.All(cv.ensure_list, [cv.string]),
+    }
+)
+
+
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
+    """Set up an ADS select device."""
+    ads_hub = hass.data[DATA_ADS]
+
+    ads_var: str = config[CONF_ADS_VAR]
+    name: str = config[CONF_NAME]
+    options: list[str] = config[CONF_OPTIONS]
+
+    entity = AdsSelect(ads_hub, ads_var, name, options)
+
+    add_entities([entity])
+
+
+class AdsSelect(AdsEntity, SelectEntity):
+    """Representation of an ADS select entity."""
+
+    def __init__(
+        self,
+        ads_hub: AdsHub,
+        ads_var: str,
+        name: str,
+        options: list[str],
+    ) -> None:
+        """Initialize the AdsSelect entity."""
+        super().__init__(ads_hub, name, ads_var)
+        self._attr_options = options
+        self._attr_current_option = None
+
+    async def async_added_to_hass(self) -> None:
+        """Register device notification."""
+        await self.async_initialize_device(self._ads_var, pyads.PLCTYPE_INT)
+        self._ads_hub.add_device_notification(
+            self._ads_var, pyads.PLCTYPE_INT, self._handle_ads_value
+        )
+
+    def select_option(self, option: str) -> None:
+        """Change the selected option."""
+        if option in self._attr_options:
+            index = self._attr_options.index(option)
+            self._ads_hub.write_by_name(self._ads_var, index, pyads.PLCTYPE_INT)
+            self._attr_current_option = option
+
+    def _handle_ads_value(self, name: str, value: int) -> None:
+        """Handle the value update from ADS."""
+        if 0 <= value < len(self._attr_options):
+            self._attr_current_option = self._attr_options[value]
+            self.schedule_update_ha_state()