domotz-remote-pawn/src/commands/network/detectNearestNDTServer.js

Domotz Agent

/** This file is part of Domotz Agent.
 * Copyright (C) 2016  Domotz Ltd
 *
 * Domotz Agent is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Domotz Agent is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Domotz Agent.  If not, see <http://www.gnu.org/licenses/>.
 **/
/**
 * Given the list of NDT servers sorted by distance, returns the nearest responding.
 * Created by Iacopo Papalini <ipapalini@domotz.com> on 16/09/15.
 */

var detectNearestNDTServer = function (message, resourceLocator) {
    var myConsole = resourceLocator.log.decorateLogs();
    var getSpeedTestSuite = resourceLocator.networkTools.speedTest.getSpeedTestSuite;
    var SPEED_TEST_SUITES = resourceLocator.networkTools.speedTest.SPEED_TEST_SUITES;

    var timeout = message.payload.timeout;
    var maxAttempts = message.payload.maximum_attempts;

    var ooklaServers = resourceLocator.networkTools.ooklaServers;
    var ndtServers = resourceLocator.networkTools.ndtServers;

    return {
        describe: function () {
            return 'detectNearestNDTServer - ' + 'Timeout: ' + timeout + 'secs, ' + 'Maximum number of attempts: ' + maxAttempts;
        },
        execute: function (callback) {
            var speedTestSuite = getSpeedTestSuite();

            if (speedTestSuite === SPEED_TEST_SUITES.MLAB) {
                myConsole.debug('MLAB');
                callback({
                    name: 'MLAB',
                    sponsor: 'MLAB',
                    url2: '',
                    id: '-1',
                    location: { siteName: 'MLAB' },
                });
            } else if (speedTestSuite === SPEED_TEST_SUITES.NDT) {
                ndtServers
                    .fetch()
                    .then(function (servers) {
                        return ndtServers.findNearestResponding(servers, timeout, maxAttempts);
                    })
                    .then(callback)
                    .catch(function (error) {
                        callback(null, error);
                    });
            } else if (speedTestSuite === SPEED_TEST_SUITES.FAST) {
                callback({
                    name: 'FAST',
                    sponsor: 'FAST',
                    url2: '',
                    id: '-1',
                    location: { siteName: 'FAST' },
                });
            } else {
                ooklaServers
                    .fetch()
                    .then(function (servers) {
                        return ooklaServers.findNearestResponding(servers);
                    })
                    .then(callback)
                    .catch(function (error) {
                        callback(null, error);
                    });
            }
        },
    };
};

module.exports.command = detectNearestNDTServer;