/*******************************************************************************
 * Copyright (c) 2003, 2004, 2005 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.internal.web.archive.operations;

import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IResource;
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.Path;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jem.util.logger.proxy.Logger;
import org.eclipse.jem.workbench.utility.JemProjectUtilities;
import org.eclipse.jst.j2ee.application.internal.operations.J2EEComponentCreationOperation;
import org.eclipse.jst.j2ee.internal.J2EEConstants;
import org.eclipse.jst.j2ee.internal.common.J2EEVersionUtil;
import org.eclipse.jst.j2ee.internal.web.classpath.WebAppContainer;
import org.eclipse.jst.j2ee.web.componentcore.util.WebArtifactEdit;
import org.eclipse.jst.j2ee.web.datamodel.properties.IWebComponentCreationDataModelProperties;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.internal.ComponentcoreFactory;
import org.eclipse.wst.common.componentcore.internal.Property;
import org.eclipse.wst.common.componentcore.internal.util.IModuleConstants;
import org.eclipse.wst.common.componentcore.resources.ComponentHandle;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualFolder;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;

public class WebComponentCreationOperation extends J2EEComponentCreationOperation implements IWebComponentCreationDataModelProperties {

	public WebComponentCreationOperation(IDataModel model) {
		super(model);
	}

	protected void createAndLinkJ2EEComponentsForMultipleComponents() throws CoreException {
		createWebStructure("/" + getModuleName());
	}

	protected void createAndLinkJ2EEComponentsForSingleComponent() throws CoreException {
		createWebStructure("");
	}

	protected void createWebStructure(String prefix) throws CoreException {
		IVirtualComponent component = ComponentCore.createComponent(getProject(), getModuleDeployName());
		component.create(0, null);
		// create and link javaSource Source Folder
		IVirtualFolder javaSourceFolder = component.getRootFolder().getFolder(new Path("/" + J2EEConstants.WEB_INF + "/classes")); //$NON-NLS-1$       
		javaSourceFolder.createLink(new Path(prefix + model.getStringProperty(JAVASOURCE_FOLDER)), 0, null);

		// create and link META-INF and WEB-INF folder
		IVirtualFolder webContent = component.getRootFolder().getFolder(new Path("/")); //$NON-NLS-1$       
		webContent.createLink(new Path(prefix + "/WebContent"), 0, null);

		IVirtualFolder webInfFolder = webContent.getFolder(J2EEConstants.WEB_INF);
		webInfFolder.create(IResource.FORCE, null);

		IVirtualFolder metaInfFolder = webContent.getFolder(J2EEConstants.META_INF);
		metaInfFolder.create(IResource.FORCE, null);

		IVirtualFolder webLib = webInfFolder.getFolder("lib");
		webLib.create(IResource.FORCE, null);
	}


	protected void createDeploymentDescriptor(IProgressMonitor monitor) throws CoreException, InvocationTargetException, InterruptedException {

		WebArtifactEdit webEdit = null;
		try {
			ComponentHandle handle = ComponentHandle.create(getProject(), model.getStringProperty(COMPONENT_DEPLOY_NAME));
			webEdit = WebArtifactEdit.getWebArtifactEditForWrite(handle);
			Integer version = (Integer) model.getProperty(COMPONENT_VERSION);
			webEdit.createModelRoot(version.intValue());
			webEdit.save(monitor);
		} catch (Exception e) {
			Logger.getLogger().logError(e);
		} finally {
			if (webEdit != null)
				webEdit.dispose();
			webEdit = null;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jst.j2ee.application.operations.J2EEComponentCreationOperation#getVersion()
	 */
	protected String getVersion() {
		int version = model.getIntProperty(COMPONENT_VERSION);
		return J2EEVersionUtil.getServletTextVersion(version);

	}

	protected List getProperties() {
		List newProps = new ArrayList();
		Property prop = ComponentcoreFactory.eINSTANCE.createProperty();
		prop.setName(J2EEConstants.CONTEXTROOT);
		prop.setValue(model.getStringProperty(CONTEXT_ROOT));
		newProps.add(prop);
		return newProps;
	}

	public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		try {
			super.execute(IModuleConstants.JST_WEB_MODULE, monitor);
			// Add "Web App Libraries" container to the project classpath.

			final IJavaProject jproject = JemProjectUtilities.getJavaProject(getProject());
			final List cp = new ArrayList();
			final IClasspathEntry[] old = jproject.getRawClasspath();
			for (int i = 0; i < old.length; i++) {
				cp.add(old[i]);
			}
			final String name = getModuleDeployName();
			cp.add(WebAppContainer.convert(name));

			final IClasspathEntry[] cparray = new IClasspathEntry[cp.size()];
			cp.toArray(cparray);
			jproject.setRawClasspath(cparray, null);
		} catch (CoreException e) {
			Logger.getLogger().log(e.getMessage());
		} catch (InvocationTargetException e) {
			Logger.getLogger().log(e.getMessage());
		} catch (InterruptedException e) {
			Logger.getLogger().log(e.getMessage());
		}

		return OK_STATUS;
	}

	public IStatus redo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		// TODO Auto-generated method stub
		return null;
	}

	public IStatus undo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
		// TODO Auto-generated method stub
		return null;
	}

}