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

import java.io.File;
import java.io.IOException;
import org.apache.log4j.Appender;
import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.Layout;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.RollingFileAppender;
import org.apache.log4j.xml.DOMConfigurator;
/**
 * @author BELINDA
 * This class simulates the steps of the household lifecycel on a yearly basis.
 */
public class Simulation {

	// The current model simulates 100 years
	private static int MAX_SIMULATION_YEAR = 100;
	private static String s_censusFile = null;
	//output the results in log
	static {
	    String logPropertyFile = System.getProperty("log4j.configuration");

	     if (null != logPropertyFile) {
	    	 if (logPropertyFile.endsWith("xml")) {
	             DOMConfigurator.configure(logPropertyFile);
	         } else if (logPropertyFile.endsWith("properties")) {
	             PropertyConfigurator.configure(logPropertyFile);
	         }

	     } else {
	    	 BasicConfigurator.configure();
	         Logger root = Logger.getRootLogger();
	         try {
	             Layout layout = new PatternLayout("%d{HH:mm:ssSSS} %-5p [%-15t]: %c{1} - %m%n");
	             ((Appender)root.getAllAppenders().nextElement()).setLayout(layout);
	             RollingFileAppender appender = new RollingFileAppender(layout, "toymodellog.txt", false);
	             appender.setMaxBackupIndex(10);
	             appender.setMaxFileSize("50MB");
                 root.addAppender(appender);
             } catch (IOException e) {
	             e.printStackTrace();
	         }
         }
	}

	private static Logger s_logger = Logger.getLogger(Simulation.class);
	
	private Model i_model;
	private ModelBuilder i_modelBuilder;
	
	//the constructor
	public Simulation() {
		i_modelBuilder = new ModelBuilder();
		if(s_logger.isDebugEnabled()) {
			s_logger.debug("" + s_censusFile);
		}
		
		i_model = i_modelBuilder.buildModel(s_censusFile);
		
		// initialise probability model here
		ProbabilityModel.initialise();
	}
        
	//Method to call the method to run the simulation if we have got the input file
        public static void main(String args[]) {
		
            // @author Andy Turner 
                if(args.length == 0) {
                        s_censusFile = "C:/Work/Projects/MoSeS/Workspace/ToyModelOutfile3.csv";
		} else {
			s_censusFile = args[0];
                }
                
		Simulation simulation = new Simulation();
		simulation.run();
	}
	//method to run the simulation
	private void run() {
		int step = 1;
		while(true) {
			s_logger.info("Simulation step: " + step);
			
			i_model.step();
			
			if(i_model.simulationCompleted()) {
				break;
			}
			
			/*if(step == 53) {
				int stop = 1;
				stop++;
			}*/
			
			step += 1;
		}
		
		s_logger.info("Simulation ends at step " + step);
	}
        
        

}