85 lines
2.5 KiB
TypeScript
85 lines
2.5 KiB
TypeScript
import * as express from "express";
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import { CronJob } from "cron";
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const count = { temp: 0, humidity: 0 };
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let today: PWSStatus = {},
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yesterday: PWSStatus = {},
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last_bucket: Date,
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current_date: Date = new Date();
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function sameDay(d1: Date, d2: Date): boolean {
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return d1.getFullYear() === d2.getFullYear() &&
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d1.getMonth() === d2.getMonth() &&
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d1.getDate() === d2.getDate();
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}
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export const captureWUStream = function( req: express.Request, res: express.Response ) {
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let prev: number, curr: number;
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if ( !( "dateutc" in req.query ) || !sameDay( current_date, new Date( req.query.dateutc + "Z") )) {
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res.send( "Error: Bad date range\n" );
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return;
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}
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if ( ( "tempf" in req.query ) && !isNaN( curr = parseFloat( req.query.tempf ) ) && curr !== -9999.0 ) {
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prev = ( "temp" in today ) ? today.temp : 0;
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today.temp = ( prev * count.temp + curr ) / ( ++count.temp );
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}
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if ( ( "humidity" in req.query ) && !isNaN( curr = parseFloat( req.query.humidity ) ) && curr !== -9999.0 ) {
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prev = ( "humidity" in today ) ? today.humidity : 0;
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today.humidity = ( prev * count.humidity + curr ) / ( ++count.humidity );
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}
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if ( ( "dailyrainin" in req.query ) && !isNaN( curr = parseFloat( req.query.dailyrainin ) ) && curr !== -9999.0 ) {
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today.precip = curr;
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}
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if ( ( "rainin" in req.query ) && !isNaN( curr = parseFloat( req.query.rainin ) ) && curr > 0 ) {
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last_bucket = new Date();
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}
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console.log( "OpenSprinkler Weather Observation: %s", JSON.stringify( req.query ) );
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res.send( "success\n" );
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};
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export const useLocalWeather = function(): boolean {
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return process.env.PWS ? true : false;
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};
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export const getLocalWeather = function(): LocalWeather {
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const result: LocalWeather = {};
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// Use today's weather if we dont have information for yesterday yet (i.e. on startup)
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Object.assign( result, today, yesterday);
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if ( "precip" in yesterday && "precip" in today ) {
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result.precip = yesterday.precip + today.precip;
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}
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// PWS report "buckets" so consider it still raining if last bucket was less than an hour ago
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if ( last_bucket !== undefined ) {
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result.raining = ( ( Date.now() - +last_bucket ) / 1000 / 60 / 60 < 1 );
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}
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return result;
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};
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new CronJob( "0 0 0 * * *", function() {
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yesterday = Object.assign( {}, today );
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today = Object.assign( {} );
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count.temp = 0; count.humidity = 0;
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current_date = new Date();
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}, null, true );
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interface PWSStatus {
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temp?: number;
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humidity?: number;
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precip?: number;
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}
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export interface LocalWeather extends PWSStatus {
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raining?: boolean;
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}
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