domotz-remote-pawn/src/events/handler/bonjourDiscovery.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/>.
 *
 */

var counter = 9;
var numberOfFastDiscoveryCycle = 10;
var bonjour2Period = 4; // around 2 minutes

var handler = function (resourceLocator) {
    var myConsole = resourceLocator.log.decorateLogs();
    counter++;

    var bonjourDelay = resourceLocator.settingsManager.getSetting('configuration.settings.discovery.bonjour_delay', 10000);

    var piggybackDiscovery = resourceLocator.lodash.get(resourceLocator, 'configuration.settings.discovery.bonjour.piggyback_discovery', false);

    if (resourceLocator.settingsManager.isBroadcastDiscoveryDisabled()) {
        myConsole.info('Skipping bonjour discovery');
        return;
    }

    if (resourceLocator.settingsManager.isBonjour2Enabled()) {
        if (counter >= bonjour2Period) {
            counter = 0;
            myConsole.info('Using Bonjour discovery v2 algorithm');
            resourceLocator.discovery.bonjourListener.startOrRefresh();
            if (piggybackDiscovery) {
                return;
            }
            setTimeout(function () {
                var servicesByMac = resourceLocator.discovery.bonjourListener.getServicesByMac();
                resourceLocator.lodash.forOwn(servicesByMac, function (value, key) {
                    resourceLocator.discoverySenderFactory(resourceLocator).sendAndCacheDiscoveryResult(key, value, {
                        getProtocolName: function () {
                            return 'bonjour';
                        },
                    });
                });
            }, bonjourDelay);
        } else {
            myConsole.info('Skipped, next run in %s discovery cycles', bonjour2Period - counter);
        }
    } else {
        myConsole.info('Called: ' + counter + ' times, starting at ' + numberOfFastDiscoveryCycle + ' )');
        if (counter === numberOfFastDiscoveryCycle) {
            counter = 0;
            resourceLocator.discovery.protocols_orchestrator.discover('bonjour');
        }
    }
};

module.exports.handler = handler;