/* ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0 
 *
 * Copyright (c) 2002 - 2006 The ObjectStyle Group 
 * and individual authors of the software.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        ObjectStyle Group (http://objectstyle.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "ObjectStyle Group" and "Cayenne" 
 *    must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written 
 *    permission, please contact andrus@objectstyle.org.
 *
 * 5. Products derived from this software may not be called "ObjectStyle"
 *    nor may "ObjectStyle" appear in their names without prior written
 *    permission of the ObjectStyle Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the ObjectStyle Group.  For more
 * information on the ObjectStyle Group, please see
 * <http://objectstyle.org/>.
 *
 */

package org.objectstyle.wolips.wizards;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.objectstyle.wolips.core.resources.types.folder.IDotSubprojAdapter;
import org.objectstyle.wolips.templateengine.TemplateDefinition;
import org.objectstyle.wolips.templateengine.TemplateEngine;

/**
 * @author mnolte
 * @author uli
 */
public class WOSubprojectCreator implements IRunnableWithProgress {

	private String subprojectName;

	private IResource parentResource;

	/**
	 * Constructor for WOSubprojectCreator.
	 */
	public WOSubprojectCreator(IResource parentResource, String subprojectName) {
		this.subprojectName = subprojectName + "." + IDotSubprojAdapter.FILE_NAME_EXTENSION;
		this.parentResource = parentResource;
	}

	/**
	 * @see WOProjectResourceCreator#run(IProgressMonitor)
	 */
	public void run(IProgressMonitor monitor) throws InvocationTargetException {
		try {
			createSubproject(monitor);
		} catch (CoreException e) {
			throw new InvocationTargetException(e);
		}
	}

	/**
	 * Method createSubproject.
	 * 
	 * @param monitor
	 * @throws CoreException
	 * @throws InvocationTargetException
	 * @throws InterruptedException
	 */
	public void createSubproject(IProgressMonitor monitor) throws CoreException, InvocationTargetException {
		IFolder subprojectFolder = null;
		switch (parentResource.getType()) {
		case IResource.PROJECT:
			subprojectFolder = ((IProject) parentResource).getFolder(subprojectName);
			break;
		case IResource.FOLDER:
			subprojectFolder = ((IFolder) parentResource).getFolder(subprojectName);

			break;
		default:
			throw new InvocationTargetException(new Exception("Wrong parent resource - check validation"));
		}
		subprojectFolder.create(false, true, monitor);

		String path = subprojectFolder.getLocation().toOSString();
		TemplateEngine templateEngine = new TemplateEngine();
		try {
			templateEngine.init();
		} catch (Exception e) {
			WizardsPlugin.getDefault().log(e);
			throw new InvocationTargetException(e);
		}
		templateEngine.getWolipsContext().setProjectName(subprojectName);
		templateEngine.addTemplate(new TemplateDefinition("subproject/PB.project.vm", path, "PB.project", "PB.project"));
		try {
			templateEngine.run(new NullProgressMonitor());
		} catch (Exception e) {
			WizardsPlugin.getDefault().log(e);
			throw new InvocationTargetException(e);
		}

		subprojectFolder.refreshLocal(IResource.DEPTH_INFINITE, monitor);

		IFolder sourceFolder;
		sourceFolder = subprojectFolder.getFolder("src"); // BUG: totally wrong
		if (!sourceFolder.exists()) {
			// create source folder
			try {
				sourceFolder.create(true, true, monitor);
			} catch (CoreException e) {
				throw new InvocationTargetException(e);
			}
		}
		IJavaProject javaProject = JavaCore.create(parentResource.getProject());
		IClasspathEntry classpathEntry = JavaCore.newSourceEntry(sourceFolder.getFullPath());
		IClasspathEntry[] classpathEntries = javaProject.getRawClasspath();
		IClasspathEntry[] newClasspathEntries = new IClasspathEntry[classpathEntries.length + 1];
		System.arraycopy(classpathEntries, 0, newClasspathEntries, 0, classpathEntries.length);
		newClasspathEntries[classpathEntries.length] = classpathEntry;
		javaProject.setRawClasspath(newClasspathEntries, monitor);
	}
}