Ugly code: Flic bridge SDK + TP Link HS100 relay

main.js

var buttonManager = require("buttons")
var buttons = buttonManager.getButtons()
const net = require('net')

var arwenTimeout

for (var i = 0; i < buttons.length; i++) {
	var button = buttons[i];
	console.log(JSON.stringify(button))
}

buttonManager.on("buttonSingleOrDoubleClickOrHold", function(obj) {
	var button = buttonManager.getButton(obj.bdaddr)
	var clickType = obj.isSingleClick ? "click" : obj.isDoubleClick ? "double_click" : "hold"
	console.log(JSON.stringify({type: clickType, name: button.name}))

	if (button.name === 'Arwèn') {
		clearTimeout(arwenTimeout)

		switchLamp(clickType !== 'hold')
		console.log('Switching ' + (clickType !== 'hold' ? 'on' : 'off') + ' ', new Date())

	  if (clickType !== 'hold') {
			console.log('Timeout set to clear later')
			arwenTimeout = setTimeout(function () {
				switchLamp(false)
				console.log('Switched off', new Date())
			}, 1000 * 15)
		}
	}
})

console.log("Started")
switchLamp(false)

function switchLamp(lampState) {
	const socket = net.Socket()
	const connection = socket.connect({port:9999, host: '192.168.1.99'}, function () {
		console.log('Connected')

		const prefix = [
			0x00, 0x00, 0x00, 0x2a, 0xd0, 0xf2, 0x81, 0xf8, 0x8b, 0xff,
			0x9a, 0xf7, 0xd5, 0xef, 0x94, 0xb6, 0xc5, 0xa0, 0xd4, 0x8b,
			0xf9, 0x9c, 0xf0, 0x91, 0xe8, 0xb7, 0xc4, 0xb0, 0xd1, 0xa5,
			0xc0, 0xe2, 0xd8, 0xa3, 0x81, 0xf2, 0x86, 0xe7, 0x93, 0xf6,
			0xd4, 0xee,
		]
		const off = [
			0xde, 0xa3, 0xde, 0xa3
		]
		const on = [
			0xdf, 0xa2, 0xdf, 0xa2
		]

		console.log('Lamp to ' + (!lampState ? 'off' : 'on'))
		connection.write(new Buffer([].concat(prefix).concat(!lampState ? off : on)))

		connection.end()
	})
}