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Merge pull request #38 from Derpthemeus/use-rolling-window

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Update Dark Sky WeatherProvider
This commit is contained in:
Samer Albahra
2019-05-26 12:47:54 -05:00
committed by GitHub
parent 22bea4a2b5 e115343cb9
commit fa5e684975
1 changed files with 50 additions and 16 deletions
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64
routes/weatherProviders/DarkSky.ts
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@@ -5,37 +5,71 @@ import { httpJSONRequest } from "../weather";
async function getDarkSkyWateringData( coordinates: GeoCoordinates ): Promise< WateringData > {
// The Unix timestamp of 24 hours ago.
const timestamp: number = moment().subtract( 1, "day" ).unix();
const yesterdayTimestamp: number = moment().subtract( 1, "day" ).unix();
const todayTimestamp: number = moment().unix();
const DARKSKY_API_KEY = process.env.DARKSKY_API_KEY,
historicUrl = `https://api.darksky.net/forecast/${DARKSKY_API_KEY}/${coordinates[0]},${coordinates[1]},${timestamp}`;
yesterdayUrl = `https://api.darksky.net/forecast/${DARKSKY_API_KEY}/${coordinates[0]},${coordinates[1]},${yesterdayTimestamp}?exclude=currently,minutely,daily,alerts,flags`,
todayUrl = `https://api.darksky.net/forecast/${DARKSKY_API_KEY}/${coordinates[0]},${coordinates[1]},${todayTimestamp}?exclude=currently,minutely,daily,alerts,flags`;
let historicData;
let yesterdayData, todayData;
try {
historicData = await httpJSONRequest( historicUrl );
yesterdayData = await httpJSONRequest( yesterdayUrl );
todayData = await httpJSONRequest( todayUrl );
} catch (err) {
// Indicate watering data could not be retrieved if an API error occurs.
return undefined;
}
if ( !todayData.hourly || !todayData.hourly.data || !yesterdayData.hourly || !yesterdayData.hourly.data ) {
return undefined;
}
/* The number of hourly forecasts to use from today's data. This will only include elements that contain historic
data (not forecast data). */
// Find the first element that contains forecast data.
const todayElements = Math.min( 24, todayData.hourly.data.findIndex( ( data ) => data.time > todayTimestamp - 60 * 60 ) );
/* Take as much data as possible from the first elements of today's data and take the remaining required data from
the remaining data from the last elements of yesterday's data. */
const samples = [
...yesterdayData.hourly.data.slice( todayElements - 24 ),
...todayData.hourly.data.slice( 0, todayElements )
];
// Fail if not enough data is available.
if ( samples.length !== 24 ) {
return undefined;
}
const totals = { temp: 0, humidity: 0, precip: 0 };
for ( const sample of samples ) {
totals.temp += sample.temperature;
totals.humidity += sample.humidity;
totals.precip += sample.precipIntensity
}
return {
// Calculate average temperature for the day using hourly data.
temp : historicData.hourly.data.reduce( ( sum, hourlyData ) => sum + hourlyData.temperature, 0 ) / historicData.hourly.data.length,
humidity: historicData.daily.data[ 0 ].humidity * 100,
precip: historicData.daily.data[ 0 ].precipIntensity * 24,
raining: historicData.currently.precipType === "rain"
temp : totals.temp / 24,
humidity: totals.humidity / 24 * 100,
precip: totals.precip,
raining: samples[ samples.length - 1 ].precipIntensity > 0
};
}
async function getDarkSkyWeatherData( coordinates: GeoCoordinates ): Promise< WeatherData > {
const DARKSKY_API_KEY = process.env.DARKSKY_API_KEY,
forecastUrl = `https://api.darksky.net/forecast/${DARKSKY_API_KEY}/${coordinates[0]},${coordinates[1]}`;
forecastUrl = `https://api.darksky.net/forecast/${DARKSKY_API_KEY}/${coordinates[0]},${coordinates[1]}?exclude=minutely,alerts,flags`;
let forecast;
try {
forecast = await httpJSONRequest( forecastUrl );
} catch (err) {
// Indicate watering data could not be retrieved if an API error occurs.
// Indicate weather data could not be retrieved if an API error occurs.
return undefined;
}
if ( !forecast.currently || !forecast.daily || !forecast.daily.data ) {
return undefined;
}
@@ -49,16 +83,16 @@ async function getDarkSkyWeatherData( coordinates: GeoCoordinates ): Promise< We
region: "",
city: "",
minTemp: Math.floor( forecast.daily.data[ 0 ].temperatureLow ),
maxTemp: Math.floor( forecast.daily.data[ 0 ].temperatureHigh ),
minTemp: Math.floor( forecast.daily.data[ 0 ].temperatureMin ),
maxTemp: Math.floor( forecast.daily.data[ 0 ].temperatureMax ),
precip: forecast.daily.data[ 0 ].precipIntensity * 24,
forecast: [ ]
};
for ( let index = 0; index < forecast.daily.data.length; index++ ) {
weather.forecast.push( {
temp_min: Math.floor( forecast.daily.data[ index ].temperatureLow ),
temp_max: Math.floor( forecast.daily.data[ index ].temperatureHigh ),
temp_min: Math.floor( forecast.daily.data[ index ].temperatureMin ),
temp_max: Math.floor( forecast.daily.data[ index ].temperatureMax ),
date: forecast.daily.data[ index ].time,
// TODO set this
icon: "",