Add tolo button platform (#60345)

.coveragerc

@@ -1094,6 +1094,7 @@ omit =
     homeassistant/components/todoist/const.py
     homeassistant/components/tof/sensor.py
     homeassistant/components/tolo/__init__.py
+    homeassistant/components/tolo/button.py
     homeassistant/components/tolo/climate.py
     homeassistant/components/tolo/light.py
     homeassistant/components/tolo/select.py

homeassistant/components/tolo/__init__.py

@@ -22,7 +22,7 @@ from homeassistant.helpers.update_coordinator import (
 
 from .const import DEFAULT_RETRY_COUNT, DEFAULT_RETRY_TIMEOUT, DOMAIN
 
-PLATFORMS = ["climate", "light", "select", "sensor"]
+PLATFORMS = ["button", "climate", "light", "select", "sensor"]
 
 _LOGGER = logging.getLogger(__name__)
 

homeassistant/components/tolo/button.py

@@ -0,0 +1,54 @@
+"""TOLO Sauna Button controls."""
+
+from tololib.const import LampMode
+
+from homeassistant.components.button import ButtonEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import ENTITY_CATEGORY_CONFIG
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from . import ToloSaunaCoordinatorEntity, ToloSaunaUpdateCoordinator
+from .const import DOMAIN
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up buttons for TOLO Sauna."""
+    coordinator = hass.data[DOMAIN][entry.entry_id]
+    async_add_entities(
+        [
+            ToloLampNextColorButton(coordinator, entry),
+        ]
+    )
+
+
+class ToloLampNextColorButton(ToloSaunaCoordinatorEntity, ButtonEntity):
+    """Button for switching to the next lamp color."""
+
+    _attr_entity_category = ENTITY_CATEGORY_CONFIG
+    _attr_icon = "mdi:palette"
+    _attr_name = "Next Color"
+
+    def __init__(
+        self, coordinator: ToloSaunaUpdateCoordinator, entry: ConfigEntry
+    ) -> None:
+        """Initialize lamp next color button entity."""
+        super().__init__(coordinator, entry)
+
+        self._attr_unique_id = f"{entry.entry_id}_lamp_next_color"
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        return (
+            self.coordinator.data.status.lamp_on
+            and self.coordinator.data.settings.lamp_mode == LampMode.MANUAL
+        )
+
+    def press(self) -> None:
+        """Execute action when lamp change color button was pressed."""
+        self.coordinator.client.lamp_change_color()