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var geolib = require('geolib');
var check = require('check-types');
function setup() {
return computeDistances;
}
function computeDistances(req, res, next) {
// do nothing if no result data set
if (!res || !res.data) {
return next();
}
if (!(check.number(req.clean['point.lat']) &&
check.number(req.clean['point.lon']))) {
return next();
}
var point = {
latitude: req.clean['point.lat'],
longitude: req.clean['point.lon']
};
res.data.forEach(function (place) {
// the result of getDistance is in meters, so convert to kilometers
place.distance = geolib.getDistance(
point,
{ latitude: place.center_point.lat, longitude: place.center_point.lon }
) / 1000;
});
next();
}
module.exports = setup;