package com.jaalee.sdk.service;

import android.os.Messenger;

import com.jaalee.sdk.Region;
/**
 * @author JAALEE, Inc
 * 
 * @Support dev@jaalee.com
 * @Sales: sales@jaalee.com
 * 
 * @see http://www.jaalee.com/
 */

final class MonitoringRegion
{
	private static final int NOT_SEEN = -1;
	final Region region;
	final Messenger replyTo;
	private long lastSeenTimeMillis = -1L;
	private boolean wasInside;

	public MonitoringRegion(Region region, Messenger replyTo)
	{
		this.region = region;
		this.replyTo = replyTo;
	}

	public boolean markAsSeen(long currentTimeMillis)
	{
		this.lastSeenTimeMillis = currentTimeMillis;
		if (!this.wasInside) {
			this.wasInside = true;
			return true;
		}
		return false;
	}

	public boolean isInside(long currentTimeMillis)
	{
		return (this.lastSeenTimeMillis != -1L) && (currentTimeMillis - this.lastSeenTimeMillis < BeaconService.EXPIRATION_MILLIS);
	}

	public boolean didJustExit(long currentTimeMillis)
	{
		if ((this.wasInside) && (!isInside(currentTimeMillis))) {
			this.lastSeenTimeMillis = -1L;
			this.wasInside = false;
			return true;
		}
		return false;
	}
}