From 2fccbd6e4758faba2b9a43d5c84c02707aa30239 Mon Sep 17 00:00:00 2001
From: Felix Eckhofer <felix@eckhofer.com>
Date: Wed, 25 Feb 2026 18:16:44 +0100
Subject: [PATCH] dwd_weather_warnings: Filter expired warnings (#163096)

---
 .../components/dwd_weather_warnings/sensor.py | 18 +++++-
 .../dwd_weather_warnings/test_init.py         | 63 +++++++++++++++++++
 2 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/homeassistant/components/dwd_weather_warnings/sensor.py b/homeassistant/components/dwd_weather_warnings/sensor.py
index 1c2817350a5..6069fdc6a2f 100644
--- a/homeassistant/components/dwd_weather_warnings/sensor.py
+++ b/homeassistant/components/dwd_weather_warnings/sensor.py
@@ -11,6 +11,7 @@ Wetterwarnungen (Stufe 1)
 
 from __future__ import annotations
 
+from datetime import UTC, datetime
 from typing import Any
 
 from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
@@ -95,13 +96,25 @@ class DwdWeatherWarningsSensor(
             entry_type=DeviceEntryType.SERVICE,
         )
 
+    def _filter_expired_warnings(
+        self, warnings: list[dict[str, Any]] | None
+    ) -> list[dict[str, Any]]:
+        if warnings is None:
+            return []
+
+        now = datetime.now(UTC)
+        return [warning for warning in warnings if warning[API_ATTR_WARNING_END] > now]
+
     @property
     def native_value(self) -> int | None:
         """Return the state of the sensor."""
         if self.entity_description.key == CURRENT_WARNING_SENSOR:
-            return self.coordinator.api.current_warning_level
+            warnings = self.coordinator.api.current_warnings
+        else:
+            warnings = self.coordinator.api.expected_warnings
 
-        return self.coordinator.api.expected_warning_level
+        warnings = self._filter_expired_warnings(warnings)
+        return max((w.get(API_ATTR_WARNING_LEVEL, 0) for w in warnings), default=0)
 
     @property
     def extra_state_attributes(self) -> dict[str, Any]:
@@ -117,6 +130,7 @@ class DwdWeatherWarningsSensor(
         else:
             searched_warnings = self.coordinator.api.expected_warnings
 
+        searched_warnings = self._filter_expired_warnings(searched_warnings)
         data[ATTR_WARNING_COUNT] = len(searched_warnings)
 
         for i, warning in enumerate(searched_warnings, 1):
diff --git a/tests/components/dwd_weather_warnings/test_init.py b/tests/components/dwd_weather_warnings/test_init.py
index 54f57ead77c..0a94555e85a 100644
--- a/tests/components/dwd_weather_warnings/test_init.py
+++ b/tests/components/dwd_weather_warnings/test_init.py
@@ -1,9 +1,23 @@
 """Tests for Deutscher Wetterdienst (DWD) Weather Warnings integration."""
 
+from datetime import UTC, datetime, timedelta
 from unittest.mock import MagicMock
 
 from homeassistant.components.dwd_weather_warnings.const import (
+    API_ATTR_WARNING_COLOR,
+    API_ATTR_WARNING_DESCRIPTION,
+    API_ATTR_WARNING_END,
+    API_ATTR_WARNING_HEADLINE,
+    API_ATTR_WARNING_INSTRUCTION,
+    API_ATTR_WARNING_LEVEL,
+    API_ATTR_WARNING_NAME,
+    API_ATTR_WARNING_PARAMETERS,
+    API_ATTR_WARNING_START,
+    API_ATTR_WARNING_TYPE,
+    ATTR_WARNING_COUNT,
     CONF_REGION_DEVICE_TRACKER,
+    CONF_REGION_IDENTIFIER,
+    CURRENT_WARNING_SENSOR,
     DOMAIN,
 )
 from homeassistant.components.dwd_weather_warnings.coordinator import (
@@ -20,6 +34,22 @@ from . import init_integration
 from tests.common import MockConfigEntry
 
 
+def _warning(level: int, end_time: datetime) -> dict[str, object]:
+    """Return a warning payload for tests."""
+    return {
+        API_ATTR_WARNING_NAME: f"Warning {level}",
+        API_ATTR_WARNING_TYPE: level,
+        API_ATTR_WARNING_LEVEL: level,
+        API_ATTR_WARNING_HEADLINE: f"Headline {level}",
+        API_ATTR_WARNING_DESCRIPTION: "Description",
+        API_ATTR_WARNING_INSTRUCTION: "Instruction",
+        API_ATTR_WARNING_START: end_time - timedelta(hours=1),
+        API_ATTR_WARNING_END: end_time,
+        API_ATTR_WARNING_PARAMETERS: {},
+        API_ATTR_WARNING_COLOR: "#ffffff",
+    }
+
+
 async def test_load_unload_entry(
     hass: HomeAssistant,
     mock_identifier_entry: MockConfigEntry,
@@ -136,3 +166,36 @@ async def test_load_valid_device_tracker(
 
     assert mock_tracker_entry.state is ConfigEntryState.LOADED
     assert isinstance(mock_tracker_entry.runtime_data, DwdWeatherWarningsCoordinator)
+
+
+async def test_filter_expired_warnings(
+    hass: HomeAssistant, entity_registry: er.EntityRegistry, mock_dwdwfsapi: MagicMock
+) -> None:
+    """Test expired-warning filtering."""
+    now = datetime.now(UTC)
+    mock_dwdwfsapi.data_valid = True
+    mock_dwdwfsapi.warncell_id = "803000000"
+    mock_dwdwfsapi.warncell_name = "Test region"
+    mock_dwdwfsapi.current_warnings = [
+        _warning(4, now - timedelta(minutes=30)),
+        _warning(2, now + timedelta(minutes=30)),
+    ]
+    mock_dwdwfsapi.expected_warnings = []
+
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        data={CONF_REGION_IDENTIFIER: "803000000"},
+        unique_id="803000000",
+    )
+    await init_integration(hass, entry)
+
+    entity_id = entity_registry.async_get_entity_id(
+        "sensor", DOMAIN, f"{entry.unique_id}-{CURRENT_WARNING_SENSOR}"
+    )
+    assert entity_id is not None
+
+    state = hass.states.get(entity_id)
+    assert state is not None
+    assert state.state == "2"
+    assert state.attributes[ATTR_WARNING_COUNT] == 1
+    assert "warning_2" not in state.attributes