/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.xml;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Iterator;

import javax.xml.parsers.ParserConfigurationException;

import org.jdom2.Attribute;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.xml.sax.SAXException;

public class XMLDiffTest {

	public static Document docFromFile(File file) throws IOException, SAXException, ParserConfigurationException {

		FileInputStream in = new FileInputStream(file);
		try {
			SAXBuilder parser = new SAXBuilder();
			return parser.build(in);
		} catch (IOException e) {
			throw e;
		} catch (JDOMException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

	public static boolean areSame(Document d1, Document d2) {
		return areSame(d1.getRootElement(), d2.getRootElement());
	}

	public static boolean areSame(Element e1, Element e2) {
		if (!e1.getName().equals(e2.getName())) {
			System.err.println("---------------------> " + e1.getName() + " VS " + e2.getName());
			return false;
		}
		if (e1.getAttributes().size() != e2.getAttributes().size()) {
			System.err.println("---------------------> " + e1.getName() + " VS " + e2.getName() + " attributes size");
			return false;
		}
		if (!e1.getText().trim().equals(e2.getText().trim())) {
			System.err.println("---------------------> " + e1.getName() + " VS " + e2.getName() + " inner text");
			return false;
		}
		Iterator<Attribute> it = e1.getAttributes().iterator();
		while (it.hasNext()) {
			Attribute att = it.next();
			if (!att.getValue().equals(e2.getAttributeValue(att.getName()))) {
				System.err.println("---------------------> " + e1.getName() + " VS " + e2.getName() + " attribute value for "
						+ att.getName());
				return false;
			}
		}
		if (e1.getChildren().size() != e2.getChildren().size()) {
			System.err.println("---------------------> " + e1.getName() + " VS " + e2.getName() + " children size");
			return false;
		}
		Iterator<Element> it1 = e1.getChildren().iterator();
		Iterator<Element> it2 = e1.getChildren().iterator();
		while (it1.hasNext()) {
			if (!areSame(it1.next(), it2.next())) {
				return false;
			}
		}

		return true;
	}
}