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Use Weather Underground astronomy data for sun rise/set

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Changes discussed in issue #3
This commit is contained in:
Samer Albahra
2015-07-23 18:25:23 -05:00
parent eeae47ef5d
commit 9ef4cb759b
3 changed files with 45 additions and 28 deletions
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41
routes/weather.js
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@@ -1,5 +1,4 @@
var http = require( "http" ),
SunCalc = require( "suncalc" ),
parseXML = require( "xml2js" ).parseString,
Cache = require( "../models/Cache" ),
@@ -41,39 +40,29 @@ function resolveCoordinates( location, callback ) {
// Retrieve weather data to complete the weather request using Weather Underground
function getWeatherUndergroundData( location, weatherUndergroundKey, callback ) {
// Generate URL using The Weather Company API v1 in Imperial units
// Generate URL using Weather Underground yesterday conditions
var url = "http://api.wunderground.com/api/" + weatherUndergroundKey +
"/yesterday/conditions/q/" + encodeURIComponent( location ) + ".json";
"/yesterday/conditions/astronomy/q/" + encodeURIComponent( location ) + ".json";
// Perform the HTTP request to retrieve the weather data
httpRequest( url, function( data ) {
try {
data = JSON.parse( data );
var tzOffset = getTimezone( data.current_observation.local_tz_offset, "minutes" ),
// Calculate sunrise and sunset since Weather Underground does not provide it
sunData = SunCalc.getTimes( data.current_observation.local_epoch * 1000,
data.current_observation.observation_location.latitude || data.current_observation.display_location.latitude,
data.current_observation.observation_location.longitude || data.current_observation.display_location.longitude );
sunData.sunrise.setUTCMinutes( sunData.sunrise.getUTCMinutes() + tzOffset );
sunData.sunset.setUTCMinutes( sunData.sunset.getUTCMinutes() + tzOffset );
var weather = {
icon: data.current_observation.icon,
timezone: data.current_observation.local_tz_offset,
sunrise: ( sunData.sunrise.getUTCHours() * 60 + sunData.sunrise.getUTCMinutes() ),
sunset: ( sunData.sunset.getUTCHours() * 60 + sunData.sunset.getUTCMinutes() ),
maxTemp: parseInt( data.history.dailysummary[0].maxtempi ),
minTemp: parseInt( data.history.dailysummary[0].mintempi ),
temp: parseInt( data.current_observation.temp_f ),
humidity: ( parseInt( data.history.dailysummary[0].maxhumidity ) + parseInt( data.history.dailysummary[0].minhumidity ) ) / 2,
precip: ( parseFloat( data.current_observation.precip_today_in ) || 0 ) + ( parseFloat( data.history.dailysummary[0].precipi ) || 0 ),
solar: parseInt( data.current_observation.UV ),
wind: parseInt( data.history.dailysummary[0].meanwindspdi ),
elevation: parseInt( data.current_observation.observation_location.elevation )
};
icon: data.current_observation.icon,
timezone: data.current_observation.local_tz_offset,
sunrise: parseInt( data.sun_phase.sunrise.hour ) * 60 + parseInt( data.sun_phase.sunrise.minute ),
sunset: parseInt( data.sun_phase.sunset.hour ) * 60 + parseInt( data.sun_phase.sunset.minute ),
maxTemp: parseInt( data.history.dailysummary[0].maxtempi ),
minTemp: parseInt( data.history.dailysummary[0].mintempi ),
temp: parseInt( data.current_observation.temp_f ),
humidity: ( parseInt( data.history.dailysummary[0].maxhumidity ) + parseInt( data.history.dailysummary[0].minhumidity ) ) / 2,
precip: ( parseFloat( data.current_observation.precip_today_in ) || 0 ) + ( parseFloat( data.history.dailysummary[0].precipi ) || 0 ),
solar: parseInt( data.current_observation.UV ),
wind: parseInt( data.history.dailysummary[0].meanwindspdi ),
elevation: parseInt( data.current_observation.observation_location.elevation )
};
callback( weather );