node.js script to set all LIFX bulbs on or off, will keep on trying until 'expectedbulbs' number of lamps are in the desired state

lights-set.js

var lifx = require('./lifx');
var util = require('util');
var lx = lifx.init();
var expectedbulbs = 2;
var target;
var bulbsAtTarget = [];
var startTime = new Date().getTime();
function processBulbState(address, powerstate) {
    var atTarget = target ? powerstate > 0 : powerstate == 0;
    if (atTarget) regBulbAtTarget(address);
}

function regBulbAtTarget(bulbaddress) {
    var inList = false;
    for (var i in bulbsAtTarget) {
	if (bulbsAtTarget[i] == bulbaddress) {
	    inList = true;
	}
    }
    if (!inList) bulbsAtTarget.push(bulbaddress);

    if (bulbsAtTarget.length == expectedbulbs) {
	console.log("All bulbs at target after " + (new Date().getTime() - startTime)/1000 + " seconds.");
	process.exit(0);
    }
}

function doIt() {
    if (target) {
	lx.lightsOn();
    } else {
	lx.lightsOff();
    }
}

function doItRepeatedly() {
    console.log("+++ timeout - retrying.");
    doIt();
    setTimeout(doItRepeatedly, 5000);
}

lx.on('bulb', function(b) { // this has no function
    console.log("new bulb: ", b);
});

lx.on('gateway', function(b) {
    console.log('Gateway found at ' + b.ipAddress.ip + ':' + b.ipAddress.port);
    console.log("arguments: ", process.argv);
    target = process.argv[2] == 'on' ? true : false;
    doIt();
    setTimeout(doItRepeatedly, 5000);
    var m = packet.getPowerState();
    lx.sendToAll(m);
});

lx.on('packet', function(p) {
    switch (p.packetTypeShortName) {
    case 'powerState':
	console.log('*** onoff: ' + p.payload.onoff + " for " + p.preamble.bulbAddress.toString('hex'));
	processBulbState(p.preamble.bulbAddress.toString('hex'), p.payload.onoff);

	break;
    default:
	//console.log('Unknown packet.');
    }
});


lx.on('bulbstate', function(b) {
    console.log("+++ bulbstate " +  b.state.power + " for " + b.bulb.lifxAddress.toString('hex'));
    processBulbState(b.bulb.lifxAddress.toString('hex'), b.state.power);
});