add original feels like temperature and fixed it for imperial units

modules/default/weather/README.md

@@ -48,7 +48,6 @@ The following properties can be configured:
 | `lang`                       | The language of the days. <br><br> **Possible values:** `en`, `nl`, `ru`, etc ... <br> **Default value:** uses value of _config.language_
 | `decimalSymbol`              | The decimal symbol to use.<br><br> **Possible values:** `.`, `,` or any other symbol.<br> **Default value:** `.`
 | `initialLoadDelay`           | The initial delay before loading. If you have multiple modules that use the same API key, you might want to delay one of the requests. (Milliseconds) <br><br> **Possible values:** `1000` - `5000` <br> **Default value:**  `0`
-| `retryDelay`                 | The delay before retrying after a request failure. (Milliseconds) <br><br> **Possible values:** `1000` - `60000` <br> **Default value:**  `2500`
 | `appendLocationNameToHeader` | If set to `true`, the returned location name will be appended to the header of the module, if the header is enabled. This is mainly intresting when using calender based weather. <br><br> **Default value:**  `true`
 | `calendarClass`              | The class for the calender module to base the event based weather information on. <br><br> **Default value:**  `'calendar'`
 
@@ -63,6 +62,7 @@ The following properties can be configured:
 | `showHumidity`               | Show the current humidity <br><br> **Possible values:** `true` or `false` <br> **Default value:** `false`
 | `showIndoorTemperature`      | If you have another module that emits the `INDOOR_TEMPERATURE` notification, the indoor temperature will be displayed <br> **Default value:** `false`
 | `showIndoorHumidity`         | If you have another module that emits the `INDOOR_HUMIDITY` notification, the indoor humidity will be displayed <br> **Default value:** `false`
+| `showFeelsLike`              | Shows the Feels like temperature weather. <br><br> **Possible values:**`true` or `false`<br>**Default value:** `true`
 
 #### Weather forecast options
 

modules/default/weather/current.njk

@@ -51,6 +51,13 @@
             </span>
         {% endif %}
     </div>
+    {% if config.showFeelsLike and not config.onlyTemp %}
+        <div class="normal medium">
+            <span class="dimmed">
+                {{ "FEELS" | translate }} {{ current.feelsLike() | roundValue | unit("temperature") }}
+            </span>
+        </div>
+    {% endif %}
 {% else %}
     <div class="dimmed light small">
         {{"LOADING" | translate}}

modules/default/weather/providers/openweathermap.js

@@ -17,7 +17,7 @@ WeatherProvider.register("openweathermap", {
 	providerName: "OpenWeatherMap",
 
 	// Overwrite the fetchCurrentWeather method.
-	fetchCurrentWeather: function() {
+	fetchCurrentWeather() {
 		this.fetchData(this.getUrl())
 			.then(data => {
 				if (!data || !data.main || typeof data.main.temp === "undefined") {
@@ -28,7 +28,7 @@ WeatherProvider.register("openweathermap", {
 
 				this.setFetchedLocation(`${data.name}, ${data.sys.country}`);
 
-				var currentWeather = this.generateWeatherObjectFromCurrentWeather(data);
+				const currentWeather = this.generateWeatherObjectFromCurrentWeather(data);
 				this.setCurrentWeather(currentWeather);
 			})
 			.catch(function(request) {
@@ -37,7 +37,7 @@ WeatherProvider.register("openweathermap", {
 	},
 
 	// Overwrite the fetchCurrentWeather method.
-	fetchWeatherForecast: function() {
+	fetchWeatherForecast() {
 		this.fetchData(this.getUrl())
 			.then(data => {
 				if (!data || !data.list || !data.list.length) {
@@ -48,7 +48,7 @@ WeatherProvider.register("openweathermap", {
 
 				this.setFetchedLocation(`${data.city.name}, ${data.city.country}`);
 
-				var forecast = this.generateWeatherObjectsFromForecast(data.list);
+				const forecast = this.generateWeatherObjectsFromForecast(data.list);
 				this.setWeatherForecast(forecast);
 			})
 			.catch(function(request) {
@@ -62,15 +62,15 @@ WeatherProvider.register("openweathermap", {
 	/*
 	 * Gets the complete url for the request
 	 */
-	getUrl: function() {
+	getUrl() {
 		return this.config.apiBase + this.config.apiVersion + this.config.weatherEndpoint + this.getParams();
 	},
 
 	/* 
 	 * Generate a WeatherObject based on currentWeatherInformation
 	 */
-	generateWeatherObjectFromCurrentWeather: function(currentWeatherData) {
-		var currentWeather = new WeatherObject();
+	generateWeatherObjectFromCurrentWeather(currentWeatherData) {
+		const currentWeather = new WeatherObject(this.config.units);
 
 		currentWeather.humidity = currentWeatherData.main.humidity;
 		currentWeather.temperature = currentWeatherData.main.temp;
@@ -86,11 +86,11 @@ WeatherProvider.register("openweathermap", {
 	/*
 	 * Generate WeatherObjects based on forecast information
 	 */
-	generateWeatherObjectsFromForecast: function(forecasts) {
-		var days = [];
+	generateWeatherObjectsFromForecast(forecasts) {
+		const days = [];
 
-		for (var forecast of forecasts) {
-			var weather = new WeatherObject();
+		for (const forecast of forecasts) {
+			const weather = new WeatherObject(this.config.units);
 
 			weather.date = moment(forecast.dt, "X");
 			weather.minTemperature = forecast.temp.min;
@@ -107,8 +107,8 @@ WeatherProvider.register("openweathermap", {
 	/*
 	 * Convert the OpenWeatherMap icons to a more usable name.
 	 */
-	convertWeatherType: function(weatherType) {
-		var weatherTypes = {
+	convertWeatherType(weatherType) {
+		const weatherTypes = {
 			"01d": "day-sunny",
 			"02d": "day-cloudy",
 			"03d": "cloudy",
@@ -137,8 +137,8 @@ WeatherProvider.register("openweathermap", {
 	 *
 	 * return String - URL params.
 	 */
-	getParams: function() {
-		var params = "?";
+	getParams() {
+		let params = "?";
 		if(this.config.locationID) {
 			params += "id=" + this.config.locationID;
 		} else if(this.config.location) {

modules/default/weather/weather.js

@@ -46,7 +46,8 @@ Module.register("weather",{
 
 		onlyTemp: false,
 		showRainAmount: true,
-		colored: false
+		colored: false,
+		showFeelsLike: true
 	},
 
 	// Module properties.

modules/default/weather/weatherobject.js

@@ -77,4 +77,23 @@ class WeatherObject {
 	nextSunAction() {
 		return moment().isBetween(this.sunrise, this.sunset) ? "sunset" : "sunrise";
 	}
+
+	feelsLike() {
+		const windInMph = this.units === "imperial" ? this.windSpeed : this.windSpeed * 2.23694;
+		const tempInF = this.units === "imperial" ? this.temperature : this.temperature * 9 / 5 + 32;
+		let feelsLike = tempInF;
+
+		if (windInMph > 3 && tempInF < 50) {
+			feelsLike = Math.round(35.74 + 0.6215 * tempInF - 35.75 * Math.pow(windInMph, 0.16) + 0.4275 * tempInF * Math.pow(windInMph, 0.16));
+		} else if (tempInF > 80 && this.humidity > 40) {
+			feelsLike = -42.379 + 2.04901523 * tempInF + 10.14333127 * this.humidity
+				- 0.22475541 * tempInF * this.humidity - 6.83783 * Math.pow(10, -3) * tempInF * tempInF
+				- 5.481717 * Math.pow(10, -2) * this.humidity * this.humidity
+				+ 1.22874 * Math.pow(10, -3) * tempInF * tempInF * this.humidity
+				+ 8.5282 * Math.pow(10, -4) * tempInF * this.humidity * this.humidity
+				- 1.99 * Math.pow(10, -6) * tempInF * tempInF * this.humidity * this.humidity;
+		}
+
+		return this.units === "imperial" ? feelsLike : (feelsLike - 32) * 5 / 9;
+	}
 }