Add router reconnect button for Smlight integration (#126408)

* Add button for router reconnect

* strings for router reconnect

* remove stale router reconnect if zigbee is not running router firmware

* Add tests for router reconnect button

* Update homeassistant/components/smlight/strings.json

And fix associated tests

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

* Make router button entity dynamic

* adjust test for dynamic runtime removal

* drop if statements from tests

---------

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

homeassistant/components/smlight/button.py

@@ -5,20 +5,22 @@ from __future__ import annotations
 from collections.abc import Awaitable, Callable
 from dataclasses import dataclass
 import logging
-from typing import Final
 
 from pysmlight.web import CmdWrapper
 
 from homeassistant.components.button import (
+    DOMAIN as BUTTON_DOMAIN,
     ButtonDeviceClass,
     ButtonEntity,
     ButtonEntityDescription,
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import EntityCategory
-from homeassistant.core import HomeAssistant
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers import entity_registry as er
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
+from .const import DOMAIN
 from .coordinator import SmDataUpdateCoordinator
 from .entity import SmEntity
 
@@ -32,7 +34,7 @@ class SmButtonDescription(ButtonEntityDescription):
     press_fn: Callable[[CmdWrapper], Awaitable[None]]
 
 
-BUTTONS: Final = [
+BUTTONS: list[SmButtonDescription] = [
     SmButtonDescription(
         key="core_restart",
         translation_key="core_restart",
@@ -53,6 +55,13 @@ BUTTONS: Final = [
     ),
 ]
 
+ROUTER = SmButtonDescription(
+    key="reconnect_zigbee_router",
+    translation_key="reconnect_zigbee_router",
+    entity_registry_enabled_default=False,
+    press_fn=lambda cmd: cmd.zb_router(),
+)
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
@@ -63,6 +72,24 @@ async def async_setup_entry(
     coordinator = entry.runtime_data.data
 
     async_add_entities(SmButton(coordinator, button) for button in BUTTONS)
+    entity_created = False
+
+    @callback
+    def _check_router(startup: bool = False) -> None:
+        nonlocal entity_created
+
+        if coordinator.data.info.zb_type == 1 and not entity_created:
+            async_add_entities([SmButton(coordinator, ROUTER)])
+            entity_created = True
+        elif coordinator.data.info.zb_type != 1 and (startup or entity_created):
+            entity_registry = er.async_get(hass)
+            if entity_id := entity_registry.async_get_entity_id(
+                BUTTON_DOMAIN, DOMAIN, f"{coordinator.unique_id}-{ROUTER.key}"
+            ):
+                entity_registry.async_remove(entity_id)
+
+    coordinator.async_add_listener(_check_router)
+    _check_router(startup=True)
 
 
 class SmButton(SmEntity, ButtonEntity):

homeassistant/components/smlight/strings.json

@@ -108,6 +108,9 @@
       },
       "zigbee_flash_mode": {
         "name": "Zigbee flash mode"
+      },
+      "reconnect_zigbee_router": {
+        "name": "Reconnect zigbee router"
       }
     },
     "switch": {

tests/components/smlight/test_button.py

@@ -2,16 +2,19 @@
 
 from unittest.mock import MagicMock
 
+from freezegun.api import FrozenDateTimeFactory
+from pysmlight import Info
 import pytest
 
 from homeassistant.components.button import DOMAIN as BUTTON_DOMAIN, SERVICE_PRESS
+from homeassistant.components.smlight.const import SCAN_INTERVAL
 from homeassistant.const import ATTR_ENTITY_ID, STATE_UNKNOWN, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry as er
 
 from .conftest import setup_integration
 
-from tests.common import MockConfigEntry
+from tests.common import MockConfigEntry, async_fire_time_changed
 
 
 @pytest.fixture
@@ -20,12 +23,16 @@ def platforms() -> Platform | list[Platform]:
     return [Platform.BUTTON]
 
 
+MOCK_ROUTER = Info(MAC="AA:BB:CC:DD:EE:FF", zb_type=1)
+
+
 @pytest.mark.parametrize(
     ("entity_id", "method"),
     [
         ("core_restart", "reboot"),
         ("zigbee_flash_mode", "zb_bootloader"),
         ("zigbee_restart", "zb_restart"),
+        ("reconnect_zigbee_router", "zb_router"),
     ],
 )
 @pytest.mark.usefixtures("entity_registry_enabled_by_default")
@@ -38,6 +45,7 @@ async def test_buttons(
     mock_smlight_client: MagicMock,
 ) -> None:
     """Test creation of button entities."""
+    mock_smlight_client.get_info.return_value = MOCK_ROUTER
     await setup_integration(hass, mock_config_entry)
 
     state = hass.states.get(f"button.mock_title_{entity_id}")
@@ -61,17 +69,49 @@ async def test_buttons(
     mock_method.assert_called_with()
 
 
-@pytest.mark.usefixtures("mock_smlight_client")
-async def test_disabled_by_default_button(
+@pytest.mark.parametrize("entity_id", ["zigbee_flash_mode", "reconnect_zigbee_router"])
+async def test_disabled_by_default_buttons(
     hass: HomeAssistant,
+    entity_id: str,
     entity_registry: er.EntityRegistry,
     mock_config_entry: MockConfigEntry,
+    mock_smlight_client: MagicMock,
 ) -> None:
-    """Test the disabled by default flash mode button."""
+    """Test the disabled by default buttons."""
+    mock_smlight_client.get_info.return_value = MOCK_ROUTER
     await setup_integration(hass, mock_config_entry)
 
-    assert not hass.states.get("button.mock_title_zigbee_flash_mode")
+    assert not hass.states.get(f"button.mock_{entity_id}")
 
-    assert (entry := entity_registry.async_get("button.mock_title_zigbee_flash_mode"))
+    assert (entry := entity_registry.async_get(f"button.mock_title_{entity_id}"))
     assert entry.disabled
     assert entry.disabled_by is er.RegistryEntryDisabler.INTEGRATION
+
+
+async def test_remove_router_reconnect(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+    freezer: FrozenDateTimeFactory,
+    mock_config_entry: MockConfigEntry,
+    mock_smlight_client: MagicMock,
+) -> None:
+    """Test removal of orphaned router reconnect button."""
+    save_mock = mock_smlight_client.get_info.return_value
+    mock_smlight_client.get_info.return_value = MOCK_ROUTER
+    mock_config_entry = await setup_integration(hass, mock_config_entry)
+
+    entities = er.async_entries_for_config_entry(
+        entity_registry, mock_config_entry.entry_id
+    )
+    assert len(entities) == 4
+    assert entities[3].unique_id == "aa:bb:cc:dd:ee:ff-reconnect_zigbee_router"
+
+    mock_smlight_client.get_info.return_value = save_mock
+
+    freezer.tick(SCAN_INTERVAL)
+    async_fire_time_changed(hass)
+
+    await hass.async_block_till_done()
+
+    entity = entity_registry.async_get("button.mock_title_reconnect_zigbee_router")
+    assert entity is None