//Create a class for acceleration sensor
package AccelerationSensor
import Timer.SimulatedTimer

public class AccelerationSensor {
	private String id
	private String label
	private String displayName
	private String acceleration
	private String currentAcceleration
	private String accelerationLatestValue
	private List states = []
	private List timeOfStates = []

	AccelerationSensor(String id, String label, String displayName, String acceleration, String accelerationLatestValue) {
		this.id = id
		this.label = label
		this.displayName = displayName
		this.acceleration = acceleration
		this.currentAcceleration = acceleration
		this.accelerationLatestValue = accelerationLatestValue
	}

	def setValue(String value) {
		println("the acceleration sensor with id:$id is triggered to $value!")
		this.accelerationLatestValue = value
		this.acceleration = value
		this.currentAcceleration = value
		this.states.add(value)
		this.timeOfStates.add(System.currentTimeMillis())
	}

	def statesSince(String info, Date dateObj) {
		def List happenedStates = []
		def sinceThen = dateObj.time
		for (int i = 0;i < timeOfStates.size();i++) {
			if (timeOfStates[i]>=sinceThen)
				happenedStates.add(states[i])
		}
		return happenedStates
	}

	
	def currentValue(String deviceFeature) {
		if (deviceFeature == "acceleration") {
			return acceleration
		}
	}

	def latestValue(String deviceFeature) {
		if (deviceFeature == "acceleration") {
			return accelerationLatestValue
		}
	}
}