definition(
    name: "Automatic Door Unlock",
    namespace: "io.goodintentions.autounlock",
    author: "Good Intentions",
    description: "Unlocks a door a specified time after locking.",
    category: "Safety & Security",
    iconUrl: "http://i.imgur.com/Wo5HCef.jpg",
    iconX2Url: "http://i.imgur.com/Wo5HCef.jpg",
    iconX3Url: "http://i.imgur.com/Wo5HCef.jpg")

preferences {
    section("Lock Confguration:") {
    	input "lock","capability.lock", title: "Lock", required: true
    	input "delay", "number", title: "Unlock after locked(minutes):", defaultValue: 7, required: true
    }
}

def installed()
{
    subscribe(lock, "lock", lockHandler)
}

def updated()
{
	unsubscribe()
    subscribe(lock, "lock", lockHandler)
}

def lockHandler(evt) {
	if (evt.value == "locked") {
		runIn(getDelaySeconds(delay), unlockDoor)
    	log.debug("${evt.displayName} locked.")
    }
}

void unlockDoor() {
	unschedule(unlockDoor)

    log.debug("Unlocking${lock.displayName} now.")
	lock.unlock()
}

def getDelaySeconds(delay) {
	return (delay * 60)
}