fix: refresh HASS services once Home Assistant has started

appdaemon/plugins/hass/hassplugin.py

@@ -256,6 +256,8 @@ async def __post_auth__(self) -> None:
         if not self.is_ready:
             self.logger.info("Waiting for Home Assistant to start")
             await self.ready_event.wait()
+            # Services registered while Home Assistant was starting are missing from the list fetched on connect
+            await self.get_hass_services()
 
         await self.notify_plugin_started(meta=await self.get_hass_config(), state=await self.get_complete_state())
         self.first_time = False

docs/HISTORY.md

@@ -24,6 +24,7 @@
 
 - Remove outdated references to `app_init_delay`
 - Reworked how the `pin_app` and `pin_thread` settings work their way through the internals, and added corresponding tests.
+- The HASS plugin refreshes the service list once Home Assistant has started, so services registered during startup, such as `weather/get_forecasts`, work right away.
 
 **Breaking Changes**
 

tests/unit/test_hass_startup.py

@@ -0,0 +1,39 @@
+"""Tests for the HassPlugin startup sequence."""
+
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+from appdaemon.plugins.hass.hassplugin import HassPlugin
+
+pytestmark = [
+    pytest.mark.ci,
+    pytest.mark.unit,
+]
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    ("is_ready", "expected"),
+    [
+        (False, ["ready", "services", "started"]),
+        (True, ["started"]),
+    ],
+)
+async def test_services_refreshed_after_home_assistant_started(is_ready: bool, expected: list[str]):
+    """Services are fetched again only if the plugin had to wait for Home Assistant to start."""
+    calls = []
+    plugin = MagicMock()
+    plugin.first_time = True
+    plugin.is_ready = is_ready
+    plugin.config.enable_started_event = True
+    plugin.websocket_send_json = AsyncMock(return_value={"success": True, "ad_duration": 0})
+    plugin.wait_for_conditions = AsyncMock()
+    plugin.ready_event.wait = AsyncMock(side_effect=lambda: calls.append("ready"))
+    plugin.get_hass_services = AsyncMock(side_effect=lambda: calls.append("services"))
+    plugin.get_hass_config = AsyncMock(return_value={})
+    plugin.get_complete_state = AsyncMock(return_value={})
+    plugin.notify_plugin_started = AsyncMock(side_effect=lambda **_: calls.append("started"))
+
+    await HassPlugin.__post_auth__(plugin)
+
+    assert calls == expected