Chris van Marle 62ce7a0e37 Weather forecast settings match current weather
This change makes the config of weather forecast more in line with
current weather. It uses the configured units (metric, imperial,
default) to determine the sign.
2017-09-01 10:58:21 +02:00

384 lines
10 KiB
JavaScript

/* global Module */
/* Magic Mirror
* Module: WeatherForecast
*
* By Michael Teeuw http://michaelteeuw.nl
* MIT Licensed.
*/
Module.register("weatherforecast",{
// Default module config.
defaults: {
location: false,
locationID: false,
appid: "",
units: config.units,
maxNumberOfDays: 7,
showRainAmount: false,
updateInterval: 10 * 60 * 1000, // every 10 minutes
animationSpeed: 1000,
timeFormat: config.timeFormat,
lang: config.language,
fade: true,
fadePoint: 0.25, // Start on 1/4th of the list.
colored: false,
scale: false,
initialLoadDelay: 2500, // 2.5 seconds delay. This delay is used to keep the OpenWeather API happy.
retryDelay: 2500,
apiVersion: "2.5",
apiBase: "http://api.openweathermap.org/data/",
forecastEndpoint: "forecast/daily",
appendLocationNameToHeader: true,
calendarClass: "calendar",
roundTemp: false,
iconTable: {
"01d": "wi-day-sunny",
"02d": "wi-day-cloudy",
"03d": "wi-cloudy",
"04d": "wi-cloudy-windy",
"09d": "wi-showers",
"10d": "wi-rain",
"11d": "wi-thunderstorm",
"13d": "wi-snow",
"50d": "wi-fog",
"01n": "wi-night-clear",
"02n": "wi-night-cloudy",
"03n": "wi-night-cloudy",
"04n": "wi-night-cloudy",
"09n": "wi-night-showers",
"10n": "wi-night-rain",
"11n": "wi-night-thunderstorm",
"13n": "wi-night-snow",
"50n": "wi-night-alt-cloudy-windy"
},
},
// create a variable for the first upcoming calendaar event. Used if no location is specified.
firstEvent: false,
// create a variable to hold the location name based on the API result.
fetchedLocationName: "",
// Define required scripts.
getScripts: function() {
return ["moment.js"];
},
// Define required scripts.
getStyles: function() {
return ["weather-icons.css", "weatherforecast.css"];
},
// Define required translations.
getTranslations: function() {
// The translations for the default modules are defined in the core translation files.
// Therefor we can just return false. Otherwise we should have returned a dictionary.
// If you're trying to build yiur own module including translations, check out the documentation.
return false;
},
// Define start sequence.
start: function() {
Log.info("Starting module: " + this.name);
// Set locale.
moment.locale(config.language);
this.forecast = [];
this.loaded = false;
this.scheduleUpdate(this.config.initialLoadDelay);
this.updateTimer = null;
},
// Override dom generator.
getDom: function() {
var wrapper = document.createElement("div");
if (this.config.appid === "") {
wrapper.innerHTML = "Please set the correct openweather <i>appid</i> in the config for module: " + this.name + ".";
wrapper.className = "dimmed light small";
return wrapper;
}
if (!this.loaded) {
wrapper.innerHTML = this.translate("LOADING");
wrapper.className = "dimmed light small";
return wrapper;
}
var table = document.createElement("table");
table.className = "small";
for (var f in this.forecast) {
var forecast = this.forecast[f];
var row = document.createElement("tr");
if (this.config.colored) {
row.className = "colored";
}
table.appendChild(row);
var dayCell = document.createElement("td");
dayCell.className = "day";
dayCell.innerHTML = forecast.day;
row.appendChild(dayCell);
var iconCell = document.createElement("td");
iconCell.className = "bright weather-icon";
row.appendChild(iconCell);
var icon = document.createElement("span");
icon.className = "wi weathericon " + forecast.icon;
iconCell.appendChild(icon);
var degreeLabel = "";
if(this.config.scale) {
switch(this.config.units) {
case "metric":
degreeLabel = " &deg;C";
break;
case "imperial":
degreeLabel = " &deg;F";
break;
case "default":
degreeLabel = "K";
break;
}
}
var maxTempCell = document.createElement("td");
maxTempCell.innerHTML = forecast.maxTemp + degreeLabel;
maxTempCell.className = "align-right bright max-temp";
row.appendChild(maxTempCell);
var minTempCell = document.createElement("td");
minTempCell.innerHTML = forecast.minTemp + degreeLabel;
minTempCell.className = "align-right min-temp";
row.appendChild(minTempCell);
if (this.config.showRainAmount) {
var rainCell = document.createElement("td");
if (isNaN(forecast.rain)) {
rainCell.innerHTML = "";
} else {
if(config.units !== "imperial") {
rainCell.innerHTML = forecast.rain + " mm";
} else {
rainCell.innerHTML = (parseFloat(forecast.rain) / 25.4).toFixed(2) + " in";
}
}
rainCell.className = "align-right bright rain";
row.appendChild(rainCell);
}
if (this.config.fade && this.config.fadePoint < 1) {
if (this.config.fadePoint < 0) {
this.config.fadePoint = 0;
}
var startingPoint = this.forecast.length * this.config.fadePoint;
var steps = this.forecast.length - startingPoint;
if (f >= startingPoint) {
var currentStep = f - startingPoint;
row.style.opacity = 1 - (1 / steps * currentStep);
}
}
}
return table;
},
// Override getHeader method.
getHeader: function() {
if (this.config.appendLocationNameToHeader) {
return this.data.header + " " + this.fetchedLocationName;
}
return this.data.header;
},
// Override notification handler.
notificationReceived: function(notification, payload, sender) {
if (notification === "DOM_OBJECTS_CREATED") {
if (this.config.appendLocationNameToHeader) {
this.hide(0, {lockString: this.identifier});
}
}
if (notification === "CALENDAR_EVENTS") {
var senderClasses = sender.data.classes.toLowerCase().split(" ");
if (senderClasses.indexOf(this.config.calendarClass.toLowerCase()) !== -1) {
this.firstEvent = false;
for (var e in payload) {
var event = payload[e];
if (event.location || event.geo) {
this.firstEvent = event;
//Log.log("First upcoming event with location: ", event);
break;
}
}
}
}
},
/* updateWeather(compliments)
* Requests new data from openweather.org.
* Calls processWeather on succesfull response.
*/
updateWeather: function() {
if (this.config.appid === "") {
Log.error("WeatherForecast: APPID not set!");
return;
}
var url = this.config.apiBase + this.config.apiVersion + "/" + this.config.forecastEndpoint + this.getParams();
var self = this;
var retry = true;
var weatherRequest = new XMLHttpRequest();
weatherRequest.open("GET", url, true);
weatherRequest.onreadystatechange = function() {
if (this.readyState === 4) {
if (this.status === 200) {
self.processWeather(JSON.parse(this.response));
} else if (this.status === 401) {
self.updateDom(self.config.animationSpeed);
Log.error(self.name + ": Incorrect APPID.");
retry = true;
} else {
Log.error(self.name + ": Could not load weather.");
}
if (retry) {
self.scheduleUpdate((self.loaded) ? -1 : self.config.retryDelay);
}
}
};
weatherRequest.send();
},
/* getParams(compliments)
* Generates an url with api parameters based on the config.
*
* return String - URL params.
*/
getParams: function() {
var params = "?";
if(this.config.locationID) {
params += "id=" + this.config.locationID;
} else if(this.config.location) {
params += "q=" + this.config.location;
} else if (this.firstEvent && this.firstEvent.geo) {
params += "lat=" + this.firstEvent.geo.lat + "&lon=" + this.firstEvent.geo.lon
} else if (this.firstEvent && this.firstEvent.location) {
params += "q=" + this.firstEvent.location;
} else {
this.hide(this.config.animationSpeed, {lockString:this.identifier});
return;
}
params += "&units=" + this.config.units;
params += "&lang=" + this.config.lang;
/*
* Submit a specific number of days to forecast, between 1 to 16 days.
* The OpenWeatherMap API properly handles values outside of the 1 - 16 range and returns 7 days by default.
* This is simply being pedantic and doing it ourselves.
*/
params += "&cnt=" + (((this.config.maxNumberOfDays < 1) || (this.config.maxNumberOfDays > 16)) ? 7 : this.config.maxNumberOfDays);
params += "&APPID=" + this.config.appid;
return params;
},
/* processWeather(data)
* Uses the received data to set the various values.
*
* argument data object - Weather information received form openweather.org.
*/
processWeather: function(data) {
this.fetchedLocationName = data.city.name + ", " + data.city.country;
this.forecast = [];
for (var i = 0, count = data.list.length; i < count; i++) {
var forecast = data.list[i];
this.forecast.push({
day: moment(forecast.dt, "X").format("ddd"),
icon: this.config.iconTable[forecast.weather[0].icon],
maxTemp: this.roundValue(forecast.temp.max),
minTemp: this.roundValue(forecast.temp.min),
rain: this.roundValue(forecast.rain)
});
}
//Log.log(this.forecast);
this.show(this.config.animationSpeed, {lockString:this.identifier});
this.loaded = true;
this.updateDom(this.config.animationSpeed);
},
/* scheduleUpdate()
* Schedule next update.
*
* argument delay number - Milliseconds before next update. If empty, this.config.updateInterval is used.
*/
scheduleUpdate: function(delay) {
var nextLoad = this.config.updateInterval;
if (typeof delay !== "undefined" && delay >= 0) {
nextLoad = delay;
}
var self = this;
clearTimeout(this.updateTimer);
this.updateTimer = setTimeout(function() {
self.updateWeather();
}, nextLoad);
},
/* ms2Beaufort(ms)
* Converts m2 to beaufort (windspeed).
*
* see:
* http://www.spc.noaa.gov/faq/tornado/beaufort.html
* https://en.wikipedia.org/wiki/Beaufort_scale#Modern_scale
*
* argument ms number - Windspeed in m/s.
*
* return number - Windspeed in beaufort.
*/
ms2Beaufort: function(ms) {
var kmh = ms * 60 * 60 / 1000;
var speeds = [1, 5, 11, 19, 28, 38, 49, 61, 74, 88, 102, 117, 1000];
for (var beaufort in speeds) {
var speed = speeds[beaufort];
if (speed > kmh) {
return beaufort;
}
}
return 12;
},
/* function(temperature)
* Rounds a temperature to 1 decimal or integer (depending on config.roundTemp).
*
* argument temperature number - Temperature.
*
* return string - Rounded Temperature.
*/
roundValue: function(temperature) {
var decimals = this.config.roundTemp ? 0 : 1;
return parseFloat(temperature).toFixed(decimals);
}
});