75 lines
2 KiB
JavaScript
75 lines
2 KiB
JavaScript
import { Meteor } from 'meteor/meteor';
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import { check, Match } from 'meteor/check';
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import ActiveFires from '../ActiveFires';
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var counter = new Counter('countActiveFires', ActiveFires.find({}));
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Meteor.publish('activefirestotal', function() {
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return counter;
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});
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const validZoom = Match.Where((zoom) => {
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// http://wiki.openstreetmap.org/wiki/Zoom_levels
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check(zoom, Number);
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return zoom >= 0 && zoom <= 19;
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});
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// https://github.com/3stack-software/meteor-match-library
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var NumberBetween = function (min, max) {
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return Match.Where(function (x) {
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check(x, Number);
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return min <= x && x <= max;
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});
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};
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var NullOr = function (type) {
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return Match.Where(function (x) {
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if (x === null) {
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return true;
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}
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check(x, type);
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return true;
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});
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};
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const zoomMetersPerPixel = [156412, 78206, 39103, 19551, 9776, 4888, 2444, 1222, 610.984, 305.492, 152.746, 76.373, 38.187, 19.093, 9.547, 4.773, 2.387, 1.193, 0.596, 0.298];
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var activefires = function(zoom, lat, lng) {
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// latitude -90 and 90 and the longitude between -180 and 180
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check(lat, NumberBetween(-90, 90));
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check(lng, NumberBetween(-180, 180));
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// console.log("Zoom: " + zoom + " lat: " + lat + " lng: " + lng);
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// console.log("Meters per pixel: " + zoomMetersPerPixel[zoom]);
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// console.log(geoData);
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return ActiveFires.find({
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ourid: {
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$near : {
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$geometry: {
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type: "Point",
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coordinates: [ lng, lat]
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},
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$minDistance: 0,
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$maxDistance: zoomMetersPerPixel[zoom] * 1000
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}
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}
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});
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}
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Meteor.publish('activefiresmyloc', function(zoom, lat, lng) {
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check(zoom, validZoom);
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check(lat, NullOr(Number));
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check(lng, NullOr(Number));
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if (lat === null || lng === null) {
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var clientIP = this.connection.clientAddress;
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if (clientIP === '127.0.0.1') {
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clientIP = '80.58.61.250' // Some Spain IP address
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}
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var geoData = IPGeocoder.geocode(clientIP);
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var location = geoData.location;
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lat = location.latitude;
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lng = location.longitude;
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}
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return activefires(zoom, lat, lng);
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});
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