'use strict';

const maxmind = require('maxmind');

const geoliteDBPath = __dirname+'/geolite_db';

function getCityCountry(ip) {
    return new Promise((res, rej) => {
        maxmind.open(geoliteDBPath+'/GeoLite2-City.mmdb', (err, cityLookup) => {
            if (!err) {
                try {
                    const obj = cityLookup.get(ip);
                    const data = obj ? {
                        city: obj.city.names.en,
                        country: obj.country.names.en
                    } : null;

                    res(data);
                } catch (e) {
                    rej(e);
                }
            } else {
                rej(e);
            }
        });
    });
}

getCityCountry('66.6.44.4').then(data => console.log(data));