/* ====================================================================
 *
 * The ObjectStyle Group Software License, Version 1.0
 *
 * Copyright (c) 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.ui.actions;

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

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.objectstyle.wolips.core.tobeintregrated.MethodSearch;

public class FindUnusedWOCodeAction implements IObjectActionDelegate {

	private ISelection selection;

	private Shell shell;

	public void run(IAction action) {
		IWorkbench workbench = PlatformUI.getWorkbench();
		shell = workbench.getActiveWorkbenchWindow().getShell();

		if (selection instanceof IStructuredSelection) {
			for (Iterator it = ((IStructuredSelection) selection).iterator(); it.hasNext();) {
				Object element = it.next();
				IProject project = null;
				if (element instanceof IProject) {
					project = (IProject) element;
				} else if (element instanceof IAdaptable) {
					project = (IProject) ((IAdaptable) element).getAdapter(IProject.class);
				}

				if (project != null) {
					if (MessageDialog.openConfirm(shell, "Confirm action", "Processing project: " + project.getName() + "\n\n" + "Please save changes before and check that no compiler errors exist.")) {
						try {
							IJavaProject javaProject = JavaCore.create(project);

							MethodSearch methodSearcher = new MethodSearch(javaProject);
							IRunnableWithProgress op = methodSearcher;
							ProgressMonitorDialog progressDialog = new ProgressMonitorDialog(shell);
							progressDialog.run(true, true, op);

							// output format?
							MessageDialog formatDialog = new MessageDialog(shell, "Output Format", null, "What kind of output do you want?", 0, new String[] { "cancel", "Comments", "Text File", }, 1);
							formatDialog.open();
							if (formatDialog.getReturnCode() == 2) {
								// text file
								InputDialog inputDialog = new InputDialog(shell, "Output text file", "Where do you want to save the file?", "file path including name", null);
								inputDialog.open();
								if (inputDialog.getReturnCode() == Window.OK) {
									String path = inputDialog.getValue();
									while (path == null || path.length() == 0) {
										inputDialog.open();
										inputDialog.setErrorMessage("Wrong Input");
										path = inputDialog.getValue();
									}
									methodSearcher.writePossiblyUnusedMethodsToFile(new File(path));
								}
							} else if (formatDialog.getReturnCode() == 1) {
								// comments
								if (!methodSearcher.setComments()) {
									throw new InterruptedException();
								}
							}
						} catch (InvocationTargetException e) {
							StackTraceElement[] stackTraces = e.getStackTrace();
							String stackTraceString = "";
							for (int i = 0; i < stackTraces.length; i++) {
								stackTraceString += stackTraces[i].toString() + "\n";
							}
							MessageDialog.openError(shell, "Error", "Error searching for unused WO code:\n\n" + e.toString() + "\n\n" + e.getCause().toString());
						} catch (InterruptedException e) {
							MessageDialog.openWarning(shell, "Process Canceled", "Search for unsused WO code canceled");
						}
					}
				}
			}
		}
	}

	public void selectionChanged(IAction action, ISelection newSelection) {
		this.selection = newSelection;
	}

	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
		// do nothing
	}

}
