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// import async to make control flow simplier'use strict';
const async = require('async');
// import the rest of the normal stuffconst mongoose = require('../../lib');
require('./geoJSONSchema.js')();
const Location = mongoose.model('Location');
// define some dummy data// note: the type can be Point, LineString, or Polygonconst data = [  { loc: { type: 'Point', coordinates: [-20.0, 5.0] } },  { loc: { type: 'Point', coordinates: [6.0, 10.0] } },  { loc: { type: 'Point', coordinates: [34.0, -50.0] } },  { loc: { type: 'Point', coordinates: [-100.0, 70.0] } },  { loc: { type: 'Point', coordinates: [38.0, 38.0] } }];

mongoose.connect('mongodb://localhost/locations', function(err) {  if (err) {    throw err;  }
  Location.on('index', function(err) {    if (err) {      throw err;    }    // create all of the dummy locations    async.each(data, function(item, cb) {      Location.create(item, cb);    }, function(err) {      if (err) {        throw err;      }      // create the location we want to search for      const coords = { type: 'Point', coordinates: [-5, 5] };      // search for it      Location.find({ loc: { $near: coords } }).limit(1).exec(function(err, res) {        if (err) {          throw err;        }        console.log('Closest to %s is %s', JSON.stringify(coords), res);        cleanup();      });    });  });});
function cleanup() {  Location.remove(function() {    mongoose.disconnect();  });}