/*******************************************************************************
 * Copyright (C) 2013  Stefan Schroeder
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 3.0 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package jsprit.examples;

import java.io.File;
import java.util.Collection;

import jsprit.analysis.toolbox.AlgorithmSearchProgressChartListener;
import jsprit.analysis.toolbox.Plotter;
import jsprit.analysis.toolbox.Plotter.Label;
import jsprit.analysis.toolbox.SolutionPlotter;
import jsprit.analysis.toolbox.SolutionPrinter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.io.VehicleRoutingAlgorithms;
import jsprit.core.algorithm.selector.SelectBest;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.io.VrpXMLReader;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;

import org.apache.log4j.Level;
import org.apache.log4j.Logger;


public class PickupAndDeliveryExample2 {
	
	public static void main(String[] args) {
		
		Logger.getRootLogger().setLevel(Level.INFO);
		
		/*
		 * some preparation - create output folder
		 */
		File dir = new File("output");
		// if the directory does not exist, create it
		if (!dir.exists()){
			System.out.println("creating directory ./output");
			boolean result = dir.mkdir();  
			if(result) System.out.println("./output created");  
		}
		
		/*
		 * Build the problem.
		 * 
		 * But define a problem-builder first.
		 */
		VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
		
		/*
		 * A solomonReader reads solomon-instance files, and stores the required information in the builder.
		 */
		new VrpXMLReader(vrpBuilder).read("input/pd_christophides_vrpnc1_vcap50.xml");
		
		/*
		 * Finally, the problem can be built. By default, transportCosts are crowFlyDistances (as usually used for vrp-instances).
		 */
		
		VehicleRoutingProblem vrp = vrpBuilder.build();
		
		SolutionPlotter.plotVrpAsPNG(vrp, "output/pd_christophides_vrpnc1.png", "pd_vrpnc1");
		
		/*
		 * Define the required vehicle-routing algorithms to solve the above problem.
		 * 
		 * The algorithm can be defined and configured in an xml-file.
		 */
//		VehicleRoutingAlgorithm vra = new SchrimpfFactory().createAlgorithm(vrp);
		VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/algorithmConfig_solomon.xml");
		vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/sol_progress.png"));
		/*
		 * Solve the problem.
		 * 
		 *
		 */
		Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
		
		/*
		 * Retrieve best solution.
		 */
		VehicleRoutingProblemSolution solution = new SelectBest().selectSolution(solutions);
		
		/*
		 * print solution
		 */
		SolutionPrinter.print(solution);
		
		/*
		 * Plot solution. 
		 */
//		SolutionPlotter.plotSolutionAsPNG(vrp, solution, "output/pd_solomon_r101_solution.png","pd_r101");
		Plotter plotter = new Plotter(vrp, solution);
		plotter.setLabel(Label.SIZE);
		plotter.setShowFirstActivity(true);
		plotter.plot("output/pd_christophides_vrpnc1_solution.png","pd_vrpnc1");
	
		
		
	}

}