hvac-auto-off.smartapp.groovy

/**
 *  HVAC Auto Off
 *
 *  Author: dianoga7@3dgo.net
 *  Date: 2013-07-21
 */

// Automatically generated. Make future change here.
definition(
    name: "Thermostat Auto Off",
    namespace: "dianoga",
    author: "dianoga7@3dgo.net",
    description: "Automatically turn off thermostat when windows/doors open. Turn it back on when everything is closed up.",
    category: "Green Living",
    iconUrl: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience.png",
    iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience%402x.png",
    oauth: true
)

preferences {
	section("Control") {
		input("thermostat", "capability.thermostat", title: "Thermostat")
	}
    
    section("Open/Close") {
    	input("sensors", "capability.contactSensor", title: "Sensors", multiple: true)
        input("delay", "number", title: "Delay (seconds) before turning thermostat off")
    }
}

def installed() {
	log.debug "Installed with settings: ${settings}"

	initialize()
}

def updated() {
	log.debug "Updated with settings: ${settings}"

	unsubscribe()
    unschedule()
	initialize()
}

def initialize() {
	state.changed = false
	subscribe(sensors, 'contact', "sensorChange")
}

def sensorChange(evt) {
	log.debug "Desc: $evt.value , $state"
    if(evt.value == 'open' && !state.changed) {
    	log.debug "Scheduling turn off in $delay seconds"
        state.scheduled = true;
        runIn(delay, 'turnOff')
    } else if(evt.value == 'closed' && (state.changed || state.scheduled)) {        
        if(!isOpen()) {
        	log.debug "Everything is closed, restoring thermostat"
            state.scheduled = false;
            unschedule('turnOff')
			restore()
        } else {
        	log.debug "Something is still open."
        }
    }
}

def isOpen() {
	def result = sensors.find() { it.currentValue('contact') == 'open'; }
    log.debug "isOpen results: $result"
    
    return result
}

def turnOff() {
	log.debug "Preparing to turn off thermostat due to contact open"
    if(isOpen()) {
    	log.debug "It's safe. Turning it off."
		state.thermostatMode = thermostat.currentValue("thermostatMode")
        state.changed = true
    	thermostat.off()
    	log.debug "State: $state"
    } else {
    	log.debug "Just kidding. The platform did something bad."
    }
}

def restore() {
    log.debug "Setting thermostat to $state.thermostatMode"
    thermostat.setThermostatMode(state.thermostatMode)
    state.changed = false
}