//Create a class for switch device
package Switch

public class Switches {
	private int id = 0	
	private String displayName
	private String switchCurrentValue
	private String switchLatestValue
	def sendEvent	
	def timers
	

	Switches(Closure sendEvent, int id, String displayName, String switchCurrentValue, String switchLatestValue) {
		this.sendEvent = sendEvent
		this.timers = new Timer()
		timers.cancel() //Timer is ready to use
		this.id = id
		this.displayName = displayName
		this.switchCurrentValue = switchCurrentValue
		this.switchLatestValue = switchLatestValue
	}

	//By Apps
	def on() {
		println("the switch with id:$id is on!")
		this.switchLatestValue = this.switchCurrentValue
		this.switchCurrentValue = "on"
		sendEvent([name: "switch", value: "on", deviceId: this.id, descriptionText: "",
		    displayed: true, linkText: "", isStateChange: false, unit: "", data: []])
	}

	def on(LinkedHashMap metaData) {
		def task = timers.runAfter(metaData["delay"]) {
			println("the switch with id:$id is on!")
			this.switchLatestValue = this.switchCurrentValue
			this.switchCurrentValue = "on"
			sendEvent([name: "switch", value: "on", deviceId: this.id, descriptionText: "",
			    displayed: true, linkText: "", isStateChange: false, unit: "", data: []])
		}
	}

	def off() {
		println("the switch with id:$id is off!")
		this.switchLatestValue = this.switchCurrentValue
		this.switchCurrentValue = "off"
		sendEvent([name: "switch", value: "off", deviceId: this.id, descriptionText: "",
		    displayed: true, linkText: "", isStateChange: false, unit: "", data: []])
	}

	def off(LinkedHashMap metaData) {
		def task = timers.runAfter(metaData["delay"]) {
			println("the switch with id:$id is off!")
			this.switchLatestValue = this.switchCurrentValue
			this.switchCurrentValue = "off"
			sendEvent([name: "switch", value: "off", deviceId: this.id, descriptionText: "",
			    displayed: true, linkText: "", isStateChange: false, unit: "", data: []])
		}
	}

	//By Model Checker
	def setValue(String value) {
		println("the switch with id:$id is $value!")
		this.switchLatestValue = this.switchCurrentValue
		this.switchCurrentValue = value
	}
	
	def currentValue(String deviceFeature) {
		if (deviceFeature == "switch") {
			return switchCurrentValue
		}
	}

	def latestValue(String deviceFeature) {
		if (deviceFeature == "switch") {
			return switchLatestValue
		}
	}
}