74 lines
2 KiB
JavaScript
74 lines
2 KiB
JavaScript
import { Meteor } from 'meteor/meteor';
|
|
import { check, Match } from 'meteor/check';
|
|
import ActiveFires from '../ActiveFires';
|
|
|
|
Meteor.publish('activefires', function activefires() {
|
|
return ActiveFires.find();
|
|
});
|
|
|
|
const validZoom = Match.Where((zoom) => {
|
|
// http://wiki.openstreetmap.org/wiki/Zoom_levels
|
|
check(zoom, Number);
|
|
return zoom >= 0 && zoom <= 19;
|
|
});
|
|
|
|
// https://github.com/3stack-software/meteor-match-library
|
|
var NumberBetween = function (min, max) {
|
|
return Match.Where(function (x) {
|
|
check(x, Number);
|
|
return min <= x && x <= max;
|
|
});
|
|
};
|
|
|
|
var NullOr = function (type) {
|
|
return Match.Where(function (x) {
|
|
if (x === null) {
|
|
return true;
|
|
}
|
|
check(x, type);
|
|
return true;
|
|
});
|
|
};
|
|
|
|
|
|
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];
|
|
|
|
var activefires = function(zoom, lat, lng) {
|
|
// latitude -90 and 90 and the longitude between -180 and 180
|
|
check(lat, NumberBetween(-90, 90));
|
|
check(lng, NumberBetween(-180, 180));
|
|
|
|
// console.log("Zoom: " + zoom + " lat: " + lat + " lng: " + lng);
|
|
// console.log("Meters per pixel: " + zoomMetersPerPixel[zoom]);
|
|
|
|
// console.log(geoData);
|
|
return ActiveFires.find({
|
|
ourid: {
|
|
$near : {
|
|
$geometry: {
|
|
type: "Point",
|
|
coordinates: [ lng, lat]
|
|
},
|
|
$minDistance: 0,
|
|
$maxDistance: zoomMetersPerPixel[zoom] * 1000
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
Meteor.publish('activefiresmyloc', function(zoom, lat, lng) {
|
|
check(zoom, validZoom);
|
|
check(lat, NullOr(Number));
|
|
check(lng, NullOr(Number));
|
|
if (lat === null || lng === null) {
|
|
var clientIP = this.connection.clientAddress;
|
|
if (clientIP === '127.0.0.1') {
|
|
clientIP = '80.58.61.250' // Some Spain IP address
|
|
}
|
|
var geoData = IPGeocoder.geocode(clientIP);
|
|
var location = geoData.location;
|
|
lat = location.latitude;
|
|
lng = location.longitude;
|
|
}
|
|
return activefires(zoom, lat, lng);
|
|
});
|