package de.ugoe.cs.eventbench.efg.commands;

import java.io.File;
import java.security.InvalidParameterException;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;

import de.ugoe.cs.eventbench.data.Event;
import de.ugoe.cs.eventbench.data.GlobalDataContainer;
import de.ugoe.cs.eventbench.efg.data.EFGEvent;
import de.ugoe.cs.util.console.Command;
import de.ugoe.cs.util.console.Console;
import edu.umd.cs.guitar.model.IO;
import edu.umd.cs.guitar.model.data.StepType;
import edu.umd.cs.guitar.model.data.TestCase;

/**
 * <p>
 * Command to load a set of sequences from a set of GUITAR test cases.
 * </p>
 * 
 * @author Steffen Herbold
 * @version 1.0
 */
public class CMDefgTestCasesToSequences implements Command {

	/*
	 * (non-Javadoc)
	 * 
	 * @see de.ugoe.cs.util.console.Command#run(java.util.List)
	 */
	@Override
	public void run(List<Object> parameters) {
		String foldername;
		String sequencesName = "sequences";
		try {
			foldername = (String) parameters.get(0);
			if (parameters.size() >= 2) {
				sequencesName = (String) parameters.get(1);
			}
		} catch (Exception e) {
			throw new InvalidParameterException();
		}

		File folder = new File(foldername);
		// TODO would be more robust with filter
		File[] testcaseFiles = folder.listFiles();
		Collection<List<Event<?>>> sequences = new LinkedList<List<Event<?>>>();
		for (File testcaseFile : testcaseFiles) {
			Console.traceln("Loading from file "
					+ testcaseFile.getAbsolutePath());
			TestCase testcase = (TestCase) IO.readObjFromFile(
					testcaseFile.getAbsolutePath(), TestCase.class);
			List<StepType> steps = testcase.getStep();
			List<Event<?>> sequence = new LinkedList<Event<?>>();
			for (StepType step : steps) {
				step.getEventId();
				sequence.add(new EFGEvent(step.getEventId()));
				/*
				 * Problem: widgetId unknown! Therefore, the events will not be
				 * equal to those in the generated from a EFG.
				 */
			}
			sequences.add(sequence);
		}
		if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
			Console.traceln("Old data \"" + sequencesName + "\" overwritten");
		}

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see de.ugoe.cs.util.console.Command#help()
	 */
	@Override
	public void help() {
		Console.println("Usage: efgTestCasesToSequences <folder> {<sequencesName>}");
	}

}
