58 lines
2.4 KiB
JavaScript
58 lines
2.4 KiB
JavaScript
/**
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* Copyright 2013,2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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var SunCalc = require('suncalc');
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function SunNode(n) {
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RED.nodes.createNode(this,n);
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this.lat = n.lat;
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this.lon = n.lon;
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this.start = n.start;
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this.end = n.end;
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var node = this;
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var oldval = null;
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this.tick = setInterval(function() {
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var now = new Date();
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var times = SunCalc.getTimes(now, node.lat, node.lon);
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var nowMillis = Date.UTC(now.getUTCFullYear(),now.getUTCMonth(),now.getUTCDate(),now.getUTCHours(),now.getUTCMinutes());
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var startMillis = Date.UTC(times[node.start].getUTCFullYear(),times[node.start].getUTCMonth(),times[node.start].getUTCDate(),times[node.start].getUTCHours(),times[node.start].getUTCMinutes());
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var endMillis = Date.UTC(times[node.end].getUTCFullYear(),times[node.end].getUTCMonth(),times[node.end].getUTCDate(),times[node.end].getUTCHours(),times[node.end].getUTCMinutes());
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var e1 = nowMillis - startMillis;
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var e2 = nowMillis - endMillis;
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var moon = parseInt(SunCalc.getMoonIllumination(now).fraction*100+0.5)/100;
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var msg = { payload:0, topic:"sun", moon:moon };
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if ((e1 > 0) & (e2 < 0)) { msg.payload = 1; }
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if (oldval == null) { oldval = msg.payload; }
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if (msg.payload == 1) { node.status({fill:"yellow",shape:"dot",text:"day"}); }
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else { node.status({fill:"blue",shape:"dot",text:"night"}); }
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if (msg.payload != oldval) {
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oldval = msg.payload;
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node.send( [msg,msg] );
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}
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else { node.send(msg); }
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}, 60000);
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this.on("close", function() {
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clearInterval(this.tick);
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});
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}
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RED.nodes.registerType("sunrise",SunNode);
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}
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