Power control on the message bus

msgbuspower.coffee

power = new Power new MessageBus

# Power coffeemaker off 60 minutes after it was powered on:
power.on 'kitchen-coffeemaker', (event) ->
	turnOff = () ->
		power.send { 
			command: "off",
			location: "kitchen-coffeemaker" }
	setTimeout turnOff, 60*60*1000 if event.command is "on"

# Turn stuff off if the last-man-out button near the exit is pressed:
power.on 'exitdoor-lastmanout', (event) ->
	receivers = [
		"kitchen-coffeemaker", 
		"kitchen-kettle",
		"bedroom-lights",
		"bathroom-lights"]
	power.send {
		command: "off"
		location: receiver
	} for receiver in receivers if event.command is "off"