v0.2.1! Adds instant Hazard List updates after hazard sync

src/weather-parameters.mjs

@@ -0,0 +1,86 @@
+import { aggregateWeatherForecastData } from '../server/scripts/modules/utils/weather.mjs';
+
+const REQUEST_TIMEOUT_MS = 10000;
+const USER_AGENT = 'WeatherStar 4000+: Linhanced; marky611@gmail.com';
+const OPEN_METEO_FORECAST_PARAMETERS = [
+	'daily=temperature_2m_max,temperature_2m_min,uv_index_max',
+	'hourly=temperature_2m,relative_humidity_2m,dew_point_2m,apparent_temperature,precipitation_probability,precipitation,rain,showers,snowfall,snow_depth,weather_code,pressure_msl,surface_pressure,cloud_cover,visibility,uv_index,is_day,sunshine_duration,wind_speed_10m,wind_direction_10m,wind_gusts_10m',
+	'timezone=auto',
+	'models=best_match',
+].join('&');
+
+const parseLocationKey = (locationKey) => {
+	if (typeof locationKey !== 'string') return null;
+	const [latText, lonText] = locationKey.split(',');
+	const lat = Number.parseFloat(latText);
+	const lon = Number.parseFloat(lonText);
+	if (!Number.isFinite(lat) || !Number.isFinite(lon)) return null;
+	return { lat, lon };
+};
+
+const splitLocationLabel = (locationLabel = '') => {
+	const [cityPart = 'Unknown', regionPart = ''] = locationLabel.split(',').map((part) => part.trim());
+	const isUsStyleState = /^[A-Z]{2}$/.test(regionPart);
+	return {
+		city: cityPart || 'Unknown',
+		state: isUsStyleState ? regionPart : '',
+		country: isUsStyleState ? 'United States' : regionPart,
+		countryCode: isUsStyleState ? 'US' : '',
+	};
+};
+
+const fetchJson = async (url) => {
+	const controller = new AbortController();
+	const timeoutId = setTimeout(() => controller.abort(), REQUEST_TIMEOUT_MS);
+
+	try {
+		const response = await fetch(url, {
+			headers: {
+				'User-Agent': USER_AGENT,
+			},
+			signal: controller.signal,
+		});
+
+		if (!response.ok) {
+			throw new Error(`Fetch error ${response.status} ${response.statusText} while fetching ${url}`);
+		}
+
+		return await response.json();
+	} finally {
+		clearTimeout(timeoutId);
+	}
+};
+
+const buildWeatherParametersForLocation = async ({ locationKey, locationLabel }) => {
+	const coordinates = parseLocationKey(locationKey);
+	if (!coordinates) {
+		throw new Error(`Invalid location key '${locationKey}' for derived hazard refresh`);
+	}
+
+	const { lat, lon } = coordinates;
+	const locationParts = splitLocationLabel(locationLabel);
+	const forecast = await fetchJson(`https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lon}&${OPEN_METEO_FORECAST_PARAMETERS}`);
+	const aggregatedForecast = aggregateWeatherForecastData(forecast);
+	if (!aggregatedForecast) {
+		throw new Error(`Unable to aggregate forecast for ${locationKey}`);
+	}
+
+	return {
+		latitude: lat,
+		longitude: lon,
+		city: locationParts.city,
+		state: locationParts.state,
+		country: locationParts.country,
+		countryCode: locationParts.countryCode,
+		timeZone: forecast?.timezone || 'UTC',
+		forecast: aggregatedForecast,
+		supportsNoaaAlerts: false,
+		primaryForecastSource: 'open-meteo',
+	};
+};
+
+export {
+	buildWeatherParametersForLocation,
+	parseLocationKey,
+	splitLocationLabel,
+};