/*******************************************************************************
 * Copyright (c) 2003, 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
 *******************************************************************************/
/*
 * Created on May 6, 2004
 * 
 */
package org.eclipse.jst.j2ee.navigator.internal.dnd;

import org.eclipse.core.resources.IProject;
import org.eclipse.jst.j2ee.commonarchivecore.internal.Archive;
import org.eclipse.jst.j2ee.commonarchivecore.internal.exception.OpenFailureException;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveOptions;
import org.eclipse.jst.j2ee.commonarchivecore.internal.impl.CommonarchiveFactoryImpl;
import org.eclipse.jst.j2ee.datamodel.properties.IJ2EEModuleImportDataModelProperties;
import org.eclipse.jst.j2ee.internal.wizard.ImportUtil;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.ui.navigator.CommonDropAdapter;
import org.eclipse.ui.part.IDropActionDelegate;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.frameworks.internal.AdaptabilityUtility;
import org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard;

/**
 * @author jsholl
 *  
 */
public class J2EEImportDropAction implements IDropActionDelegate {
	private ArchiveOptions readOnlyArchiveOptions;

	public J2EEImportDropAction() {
		readOnlyArchiveOptions = new ArchiveOptions();
		readOnlyArchiveOptions.setIsReadOnly(true);
	}

	private boolean fileExistsOnDisk(String fileName) {
		if (fileName != null && fileName.length() > 0) {
			java.io.File file = new java.io.File(fileName);
			return file.exists() && !file.isDirectory();
		}
		return false;
	}

	public boolean validateDrop(CommonDropAdapter dropAdapter, Object target, int operation, TransferData transferType) {
		if (FileTransfer.getInstance().isSupportedType(transferType)) {
			String[] sourceNames = (String[]) FileTransfer.getInstance().nativeToJava(transferType);
			if (sourceNames == null || sourceNames.length != 1) { //only handle one file for now
				return false;
			}
			String fileName = sourceNames[0];
			if (!(fileName.endsWith(".ear") || fileName.endsWith(".jar") || fileName.endsWith(".war") || fileName.endsWith(".rar"))) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
				return false;
			}
			if (!fileExistsOnDisk(fileName)) {
				return false;
			}
			int archiveType = ImportUtil.UNKNOWN;
			Archive archive = null;
			try {
//				archive = CommonarchiveFactoryImpl.getActiveFactory().openArchive(fileName);
//				archiveType = ImportUtil.getArchiveType(archive);
//				String[] possibleNatures = null;
//				switch (archiveType) {
//					case ImportUtil.EARFILE :
//						possibleNatures = new String[]{IEARNatureConstants.NATURE_ID};
//						break;
//					case ImportUtil.EJBJARFILE :
//						possibleNatures = new String[]{IEARNatureConstants.NATURE_ID, IEJBNatureConstants.NATURE_ID};
//						break;
//					case ImportUtil.CLIENTJARFILE :
//						possibleNatures = new String[]{IEARNatureConstants.NATURE_ID, IApplicationClientNatureConstants.NATURE_ID};
//						break;
//					case ImportUtil.WARFILE :
//						possibleNatures = new String[]{IEARNatureConstants.NATURE_ID, IWebNatureConstants.J2EE_NATURE_ID};
//						break;
//					case ImportUtil.RARFILE :
//						possibleNatures = new String[]{IEARNatureConstants.NATURE_ID, IConnectorNatureConstants.NATURE_ID};
//						break;
//					default :
//						return false;
//				}
//
//				IProject project = (IProject) AdaptabilityUtility.getAdapter(target, IProject.class);
				//TODO fix up to use components and artifact edits
//				if (null != project) {
//					try {
//						boolean foundNature = false;
//						for (int i = 0; !foundNature && i < possibleNatures.length; i++) {
//							if (project.hasNature(possibleNatures[i])) {
//								foundNature = true;
//								J2EENature nature = (J2EENature) project.getNature(possibleNatures[i]);
//								int projectJ2EEVersion = nature.getJ2EEVersion();
//								int archiveModuleVersion = ArchiveUtil.getFastSpecVersion((ModuleFile) archive);
//								boolean fail = false;
//								switch (archiveType) {
//									case ImportUtil.EARFILE :
//									case ImportUtil.CLIENTJARFILE :
//										if (projectJ2EEVersion < archiveModuleVersion) {
//											fail = true;
//										}
//										break;
//									case ImportUtil.EJBJARFILE :
//										if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_2_ID && archiveModuleVersion > J2EEVersionConstants.EJB_1_1_ID) {
//											fail = true;
//										} else if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_3_ID && archiveModuleVersion > J2EEVersionConstants.EJB_2_0_ID) {
//											fail = true;
//										}
//										break;
//									case ImportUtil.WARFILE :
//										if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_2_ID && archiveModuleVersion > J2EEVersionConstants.WEB_2_2_ID) {
//											fail = true;
//										} else if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_3_ID && archiveModuleVersion > J2EEVersionConstants.WEB_2_3_ID) {
//											fail = true;
//										}
//										break;
//									case ImportUtil.RARFILE :
//										if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_2_ID) {
//											fail = true;
//										} else if (projectJ2EEVersion == J2EEVersionConstants.J2EE_1_3_ID && archiveModuleVersion > J2EEVersionConstants.JCA_1_0_ID) {
//											fail = true;
//										}
//										break;
//								}
//								if (fail) {
//									return false;
//								}
//								return true;
//							}
//						}
//						if (!foundNature) {
//							return false;
//						}
//					} catch (CoreException e) {
//						return false;
//					}
//				}

			} catch (Exception e) {
				return false;
			} finally {
				if (null != archive && archive.isOpen()) {
					archive.close();
				}
			}
			return true;
		}
		return false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.wst.common.navigator.internal.views.navigator.dnd.NavigatorDropActionDelegate#run(org.eclipse.wst.common.navigator.internal.views.navigator.dnd.CommonNavigatorDropAdapter,
	 *      java.lang.Object, java.lang.Object)
	 */
	public boolean run(Object source, Object target) {
		//TODO fix up drag and drop transfer
		TransferData currentTransfer = null; //dropAdapter.getCurrentTransfer();
		if (FileTransfer.getInstance().isSupportedType(currentTransfer)) {
			final String[] fileNames = (String[]) source;
			final String fileName = fileNames[0];
			DataModelWizard wizard = null;
			IDataModel dataModel = null;

			int archiveType = ImportUtil.UNKNOWN;
			Archive archive = null;
			try {
				archive = CommonarchiveFactoryImpl.getActiveFactory().openArchive(fileName);
				archiveType = ImportUtil.getArchiveType(archive);
				switch (archiveType) {
					case ImportUtil.EARFILE :
						dataModel = null;//new EnterpriseApplicationImportDataModel();
						break;
					case ImportUtil.EJBJARFILE :
						dataModel = null;//new EJBModuleImportDataModel();
						break;
					case ImportUtil.CLIENTJARFILE :
						dataModel = null;//new AppClientModuleImportDataModel();
						break;
					case ImportUtil.WARFILE :
						dataModel = null;//new WebModuleImportDataModel();
						break;
					case ImportUtil.RARFILE :
						dataModel = null;//new ConnectorModuleImportDataModel();
						break;
					default :
						return false;
				}
			} catch (OpenFailureException e) {
				return false;
			} finally {
				if (null != archive && archive.isOpen()) {
					archive.close();
				}
			}

			dataModel.setProperty(IJ2EEModuleImportDataModelProperties.FILE_NAME, fileName);

			IProject project = (IProject) AdaptabilityUtility.getAdapter(target, IProject.class);
			if (null != project) {
				try {
					if (archiveType == ImportUtil.EARFILE ) {
						dataModel.setProperty(IJ2EEModuleImportDataModelProperties.PROJECT_NAME, project.getName());
					} else {
						dataModel.setProperty(IJ2EEModuleImportDataModelProperties.EAR_COMPONENT_NAME, project.getName());
						dataModel.setBooleanProperty(IJ2EEModuleImportDataModelProperties.ADD_TO_EAR, true);
					}
				} catch (Exception e) {
					return false;
				}
			}
			switch (archiveType) {
				case ImportUtil.EARFILE :
					wizard = null;//new EnterpriseApplicationImportWizard((EnterpriseApplicationImportDataModel) dataModel);
					break;
				case ImportUtil.EJBJARFILE :
					wizard = null;//new EJBModuleImportWizard((EJBModuleImportDataModel) dataModel);
					break;
				case ImportUtil.CLIENTJARFILE :
					wizard = null;//new AppClientModuleImportWizard((AppClientModuleImportDataModel) dataModel);
					break;
				case ImportUtil.WARFILE :
					wizard = null;//new WebModuleImportWizard((WebModuleImportDataModel) dataModel);
					break;
				case ImportUtil.RARFILE :
					wizard = null;//new ConnectorModuleImportWizard((ConnectorModuleImportDataModel) dataModel);
					break;
			}

			if (null != wizard) {
				//TODO fix up wizard for drag and drop
//				WizardDialog dialog = new WizardDialog(getShell(), wizard);
//				dialog.open();
				return true;
			}
		}
		return false;
	}
}