/*******************************************************************************
 * Copyright (c) 2003, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.j2ee.application.internal.operations;

import java.io.File;
import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jst.j2ee.internal.earcreation.EARCreationResourceHandler;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
import org.eclipse.jst.j2ee.project.EarUtilities;
import org.eclipse.osgi.util.NLS;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;

public class LinkArchiveIntoProjectOperation extends J2EEUtilityJarImportAssistantOperation {


	private String linkedPathVariable;

	public LinkArchiveIntoProjectOperation(File utilityJar, String linkedPathVariable) {
		super(NLS.bind(EARCreationResourceHandler.LinkArchiveIntoProjectOperation_Linking_archive_into_selected_proje_, utilityJar.getName()), utilityJar);
		this.linkedPathVariable = linkedPathVariable;

	}

	@Override
	public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		MultiStatus status = new MultiStatus(J2EEPlugin.PLUGIN_ID, 0, NLS.bind(EARCreationResourceHandler.LinkArchiveIntoProjectOperation_Linking_archive_into_selected_proje_, getUtilityJar().getName()), null);

		IProject project = getWorkspaceRoot().getProject(getAssociatedEARProjectName());

		try {
			IVirtualComponent earComponent = ComponentCore.createComponent(project);
			IContainer underlyingFolder = earComponent.getRootFolder().getUnderlyingFolder();
			String uriMapping = getUtilityJar().getName();
			String earLib = EarUtilities.getEARLibDir(earComponent);
			IFolder libDirFolder = null;
 			if(earLib != null && earLib.length() > 0) {
 				uriMapping = (new Path(earLib)).append(uriMapping).toString();
 				if(underlyingFolder.isAccessible()) {
 					libDirFolder = getWorkspaceRoot().getFolder(underlyingFolder.getFullPath().append(earLib));
 				} else {
 					libDirFolder = getWorkspaceRoot().getFolder(project.getFullPath().append(earLib));
 				}
 			}
 			
 			IFile linkedJarFile = null;
 			if(underlyingFolder.isAccessible()) {				
				linkedJarFile = underlyingFolder.getFile(new Path(uriMapping));
			} else {
				linkedJarFile = project.getFile(uriMapping);
			}
 			
			if (linkedJarFile.exists()) {
				if (isOverwriteIfNecessary())
					linkedJarFile.delete(true, true, new SubProgressMonitor(monitor, 1));
				else {
					status.add(J2EEPlugin.createErrorStatus(0, NLS.bind(EARCreationResourceHandler.CreateProjectWithLinkedJarOperation_File_already_exists_0_, linkedJarFile.getFullPath()), null));
					return status;
				}
			}
 			
 			// Create EAR's library directory folder if it doesn't exist
 			if(libDirFolder != null && (!libDirFolder.exists() || !libDirFolder.isAccessible())) {
 				mkdirs(libDirFolder);
 			}
 			
			status.add(createLinkedArchive(project, linkedJarFile.getProjectRelativePath().toString(), getUtilityJar(), linkedPathVariable, monitor));

			addLibraryToClasspath(project, linkedJarFile, monitor);
			
			createVirtualArchiveComponent(project, uriMapping, linkedJarFile, monitor);

		} catch (CoreException e) {
			status.add(J2EEPlugin.createErrorStatus(0, e.getMessage(), e));
		} catch (InvocationTargetException e) {
			status.add(J2EEPlugin.createErrorStatus(0, e.getMessage(), e));
		} catch (InterruptedException e) {
			status.add(J2EEPlugin.createErrorStatus(0, e.getMessage(), e));
		}
		return status;
	}

	@Override
	public IStatus redo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		return Status.CANCEL_STATUS;
	}

	@Override
	public IStatus undo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		return Status.CANCEL_STATUS;
	}

}