package de.ugoe.cs.quest.ui.commands;

import java.security.InvalidParameterException;
import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Shell;

import de.ugoe.cs.quest.CommandHelpers;
import de.ugoe.cs.quest.SequenceInstanceOf;
import de.ugoe.cs.quest.ui.GlobalDataContainer;
import de.ugoe.cs.quest.ui.swt.SequencesDialog;
import de.ugoe.cs.util.console.Command;
import de.ugoe.cs.util.console.Console;

/**
 * <p>
 * Command to show sequences.
 * </p>
 * 
 * @author Jeffrey Hall, Steffen Herbold
 */
public class CMDshowSequences implements Command {

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

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

		Object dataObject = GlobalDataContainer.getInstance().getData(
				sequencesName);
		if (dataObject == null) {
			CommandHelpers.objectNotFoundMessage(sequencesName);
			return;
		}
		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
			CommandHelpers.objectNotType(sequencesName,
					"Collection<List<Event<?>>>");
			return;
		}

		Shell shell = new Shell(SWT.NONE);
		shell.open();
		shell.layout();
		shell.setSize(0, 0);
		SequencesDialog sequencesDialog = new SequencesDialog(shell, SWT.NONE);
		sequencesDialog.open(sequencesName);
		shell.dispose();
	}
}
