package uk.ac.leeds.sog.moses.agent;

import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

/**
 * @author Belinda
 *This class outputs the model results for each area.
 */
public class Model {
	
	private List i_areaModel;
	
	private boolean i_simulationStop;
	
	private static Logger s_logger = Logger.getLogger(Model.class);
	private static String s_lineSeparator = System.getProperty("line.separator");
	//constructor
	public Model() {
		i_areaModel = new ArrayList();
		i_simulationStop = false;
	}
	//Method to record each step of the area model and outputs the results
	public void step() {
		for(int i=0; i<i_areaModel.size(); i++) {
			AreaModel areaModel = (AreaModel) i_areaModel.get(i);
			if(areaModel.hasOccupiedHousehold()) {
				areaModel.step();
				i_simulationStop = false;
			} else {
				if(s_logger.isDebugEnabled()) {
					s_logger.debug("No occupied house in the area " + areaModel.getLocation());
					s_logger.debug("Simulation stops in the area " + areaModel.getLocation());
				}
				i_simulationStop = true;
			}
		}
		
	}
	// method to add in areaModel
	public void addAreaModel(AreaModel areaModel) {
		i_areaModel.add(areaModel);
	}
	//method to remove areaModel
	public void removeAreaModel(AreaModel areaModel) {
		i_areaModel.remove(areaModel);
	}
	//method to get the list of areaModels
	public List getListOfAreaModels() {
		return i_areaModel;
	}
	//whether the simulation has completed
	public boolean simulationCompleted() {
		return i_simulationStop;
	}
	//outputs the information of areaModels
	public String toString() {
        StringBuffer buff = new StringBuffer();
		
		int size = i_areaModel.size();
		for(int i=0; i<size; i++) {
			AreaModel areaModel = (AreaModel) i_areaModel.get(i);
			buff.append(areaModel.toString());
		}
		buff.append(s_lineSeparator);
		
		return buff.toString();
	}

}