package PatternObserver.WeatherV2;

import java.util.ArrayList;

/** Demo file, it may not be correct and/or complete.
 * Please watch the corresponding lecture(s) for more explanations.
 * @author ashesh
 */
public class Thermometer implements SubjectThermometer {
	ArrayList<ObserverThermometer> listObservers = new ArrayList<ObserverThermometer>();
	double temperatureC = 0.0;

	@Override
	public void attach(ObserverThermometer o) {
		if (!listObservers.contains(o)) {
			listObservers.add(o);
		}
	}

	@Override
	public void detach(ObserverThermometer o) {
		listObservers.remove(o);
	}

	@Override
	public void notifyObservers() {
		for (ObserverThermometer obs : listObservers) {
			obs.update(this);
		}
	}

	public double getTemperatureC() {
		return temperatureC;
	}

	public void setTemperatureC(double temperatureC) {
		this.temperatureC = temperatureC;
		notifyObservers();
	}
}