Merge pull request #46 from jdejaegh/daily_midnight_bug

Fix midnight bug for daily forecast

custom_components/irm_kmi/const.py

@@ -155,3 +155,5 @@
     'de': 'Königliche Meteorologische Institut von Belgien',
     'en': 'Royal Meteorological Institute of Belgium'
 }
+
+WEEKDAYS = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']

custom_components/irm_kmi/coordinator.py

@@ -19,7 +19,7 @@
 from homeassistant.util.dt import utcnow
 
 from .api import IrmKmiApiClient, IrmKmiApiError
-from .const import CONF_DARK_MODE, CONF_STYLE, DOMAIN, IRM_KMI_NAME
+from .const import CONF_DARK_MODE, CONF_STYLE, DOMAIN, IRM_KMI_NAME, WEEKDAYS
 from .const import IRM_KMI_TO_HA_CONDITION_MAP as CDT_MAP
 from .const import MAP_WARNING_ID_TO_SLUG as SLUG_MAP
 from .const import OPTION_STYLE_SATELLITE, OUT_OF_BENELUX, STYLE_TO_PARAM_MAP
@@ -28,7 +28,7 @@
                    RadarAnimationData, WarningData)
 from .pollen import PollenParser
 from .rain_graph import RainGraph
-from .utils import disable_from_config, get_config_value, preferred_language
+from .utils import disable_from_config, get_config_value, preferred_language, next_weekday
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -356,10 +356,9 @@ async def daily_list_to_forecast(self, data: List[dict] | None) -> List[Forecast
             return None
 
         forecasts = list()
-        n_days = 0
         lang = preferred_language(self.hass, self._config_entry)
         tz = await dt.async_get_time_zone('Europe/Brussels')
-        now = dt.now(tz)
+        forecast_day = dt.now(tz)
 
         for (idx, f) in enumerate(data):
             precipitation = None
@@ -384,9 +383,12 @@ async def daily_list_to_forecast(self, data: List[dict] | None) -> List[Forecast
                     pass
 
             is_daytime = f.get('dayNight', None) == 'd'
+            day_name = f.get('dayName', {}).get('en', None)
+            if day_name in WEEKDAYS:
+                forecast_day = next_weekday(forecast_day, WEEKDAYS.index(day_name))
+
             forecast = IrmKmiForecast(
-                datetime=(now + timedelta(days=n_days)).strftime('%Y-%m-%d') if is_daytime else now.strftime(
-                    '%Y-%m-%d'),
+                datetime=(forecast_day.strftime('%Y-%m-%d')),
                 condition=CDT_MAP.get((f.get('ww1', None), f.get('dayNight', None)), None),
                 native_precipitation=precipitation,
                 native_temperature=f.get('tempMax', None),
@@ -406,8 +408,6 @@ async def daily_list_to_forecast(self, data: List[dict] | None) -> List[Forecast
                     (forecast['native_temperature'], forecast['native_templow'])
 
             forecasts.append(forecast)
-            if is_daytime or idx == 0:
-                n_days += 1
 
         return forecasts
 

custom_components/irm_kmi/utils.py

@@ -1,4 +1,5 @@
 import logging
+from datetime import timedelta
 from typing import Any
 
 from homeassistant.config_entries import ConfigEntry
@@ -38,3 +39,10 @@ def preferred_language(hass: HomeAssistant, config_entry: ConfigEntry) -> str:
         return hass.config.language if hass.config.language in LANGS else 'en'
 
     return get_config_value(config_entry, CONF_LANGUAGE_OVERRIDE)
+
+
+def next_weekday(current, weekday):
+    days_ahead = weekday - current.weekday()
+    if days_ahead < 0:
+        days_ahead += 7
+    return current + timedelta(days_ahead)

tests/test_coordinator.py

@@ -86,7 +86,7 @@ async def test_current_weather_nl() -> None:
     assert expected == result
 
 
-@freeze_time(datetime.fromisoformat('2023-12-26T18:30:00.028724'))
+@freeze_time(datetime.fromisoformat('2023-12-26T18:30:00+01:00'))
 async def test_daily_forecast(
         hass: HomeAssistant,
         mock_config_entry: MockConfigEntry
@@ -99,6 +99,8 @@ async def test_daily_forecast(
 
     assert isinstance(result, list)
     assert len(result) == 8
+    assert result[0]['datetime'] == '2023-12-26'
+    assert not result[0]['is_daytime']
 
     expected = IrmKmiForecast(
         datetime='2023-12-27',
@@ -193,6 +195,29 @@ async def test_hourly_forecast_midnight_bug() -> None:
     assert result[24]['datetime'] == '2024-06-01T00:00:00+02:00'
 
 
+@freeze_time(datetime.fromisoformat('2024-05-31T00:10:00+02:00'))
+async def test_daily_forecast_midnight_bug(
+        hass: HomeAssistant,
+        mock_config_entry: MockConfigEntry
+) -> None:
+    coordinator = IrmKmiCoordinator(hass, mock_config_entry)
+
+    api_data = get_api_data("midnight-bug-31-05-2024T00-13.json").get('for', {}).get('daily')
+    result = await coordinator.daily_list_to_forecast(api_data)
+
+    assert result[0]['datetime'] == '2024-05-31'
+    assert not result[0]['is_daytime']
+
+    assert result[1]['datetime'] == '2024-05-31'
+    assert result[1]['is_daytime']
+
+    assert result[2]['datetime'] == '2024-06-01'
+    assert result[2]['is_daytime']
+
+    assert result[3]['datetime'] == '2024-06-02'
+    assert result[3]['is_daytime']
+
+
 async def test_refresh_succeed_even_when_pollen_and_radar_fail(
         hass: HomeAssistant,
         mock_config_entry: MockConfigEntry,