EDIT

// $Id$

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.bulkeditor;

import java.util.Comparator;

import org.apache.log4j.Logger;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Menu;

import org.eclipse.swt.widgets.MenuItem;

import org.eclipse.ui.IEditorInput;

import eu.etaxonomy.cdm.model.common.TimePeriod;

import eu.etaxonomy.cdm.model.reference.ReferenceBase;

import eu.etaxonomy.taxeditor.annotatedlineeditor.IdentifiableEntityComparator;

import eu.etaxonomy.taxeditor.bulkeditor.input.ReferenceEditorInput;

/**

 * <p>BulkEditorSortMenuProvider class.</p>

 *

 * @author p.ciardelli

 * @created 19.08.2009

 * @version 1.0

 */

public class BulkEditorSortMenuProvider implements IBulkEditorSortMenuProvider {

	private static final Logger logger = Logger

			.getLogger(BulkEditorSortMenuProvider.class);

	/* (non-Javadoc)

	 * @see eu.etaxonomy.taxeditor.bulkeditor.IBulkEditorSortMenuProvider#fillMenu(org.eclipse.ui.IEditorInput, java.awt.Menu)

	 */

	/** {@inheritDoc} */

	public Menu fillMenu(IEditorInput input, Menu menu) {

		addMenuItem(menu, "Title cache", new IdentifiableEntityComparator(), true);

		if (input instanceof ReferenceEditorInput) {

			addMenuItem(menu, "Year", new ReferenceYearComparator(), false);

		}

		if (input instanceof ReferenceEditorInput) {

			addMenuItem(menu, "Reference Type", new ReferenceTypeComparator(), false);

		}

		return menu;

	}

	/**

	 * @param menu 

	 * @param string

	 * @param identifiableEntityComparator

	 * @return 

	 */

	private MenuItem addMenuItem(Menu menu, String text, Comparator comparator, boolean selected) {

		MenuItem menuItem = new MenuItem(menu, SWT.CHECK);

		menuItem.setText(text);

		menuItem.setData(comparator);

		menuItem.setSelection(selected);

		return menuItem;

	}

	class ReferenceYearComparator implements Comparator {

		/**

		 * @param o1

		 * @return

		 */

		private String getYearString(Object o) {

			TimePeriod datePublished = o == null || !(o instanceof ReferenceBase) ? 

					null : ((ReferenceBase) o).getDatePublished(); 

			return datePublished == null? null : datePublished.toString();

		}

		/* (non-Javadoc)

		 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)

		 */

		public int compare(Object o1, Object o2) {

			String yearString1 = getYearString(o1);

			String yearString2 = getYearString(o2);

			if (yearString1 == null) {

				if (yearString2 == null) {

					return 0;

				} else {

					return -1;

				}

			}

			if (yearString2 == null) {

				return 1;

			}

			int returnVal = yearString1.compareToIgnoreCase(yearString2);

			if (returnVal == 0) {

				return new IdentifiableEntityComparator().compare(o1, 02);

			} else {

				return returnVal;

			}

		}		

	}

	class ReferenceTypeComparator implements Comparator {

		/* (non-Javadoc)

		 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)

		 */

		public int compare(Object o1, Object o2) {

			String typeString1 = o1.getClass().toString();

			String typeString2 = o2.getClass().toString();

			if (typeString1 == null) {

				if (typeString2 == null) {

					return 0;

				} else {

					return -1;

				}

			}

			if (typeString2 == null) {

				return 1;

			}

			int returnVal = typeString1.compareToIgnoreCase(typeString2);

			if (returnVal == 0) {

				return new IdentifiableEntityComparator().compare(o1, 02);

			} else {

				return returnVal;

			}

		}		

	}

}