/*******************************************************************************
 * Copyright (c) 2000, 2017 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
 *
 *******************************************************************************/

package org.eclipse.dltk.internal.ui.refactoring.reorg;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.dltk.internal.corext.refactoring.tagging.INameUpdating;
import org.eclipse.dltk.internal.ui.refactoring.RefactoringMessages;
import org.eclipse.dltk.ui.DLTKUIPlugin;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ltk.core.refactoring.Refactoring;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.ui.refactoring.RefactoringWizard;

public class RenameRefactoringWizard extends RefactoringWizard {

	private final String fInputPageDescription;
	protected final String fPageContextHelpId;
	private final ImageDescriptor fInputPageImageDescriptor;

	public RenameRefactoringWizard(Refactoring refactoring,
			String defaultPageTitle, String inputPageDescription,
			ImageDescriptor inputPageImageDescriptor,
			String pageContextHelpId) {
		super(refactoring, DIALOG_BASED_USER_INTERFACE);
		setDefaultPageTitle(defaultPageTitle);
		fInputPageDescription = inputPageDescription;
		fInputPageImageDescriptor = inputPageImageDescriptor;
		fPageContextHelpId = pageContextHelpId;
	}

	@Override
	protected void addUserInputPages() {
		String initialSetting = getNameUpdating().getCurrentElementName();
		RenameInputWizardPage inputPage = createInputPage(fInputPageDescription,
				initialSetting);
		inputPage.setImageDescriptor(fInputPageImageDescriptor);
		addPage(inputPage);
	}

	private INameUpdating getNameUpdating() {
		return getRefactoring().getAdapter(INameUpdating.class);
	}

	protected RenameInputWizardPage createInputPage(String message,
			String initialSetting) {
		return new RenameInputWizardPage(message, fPageContextHelpId, true,
				initialSetting) {
			@Override
			protected RefactoringStatus validateTextField(String text) {
				return validateNewName(text);
			}
		};
	}

	protected RefactoringStatus validateNewName(String newName) {
		INameUpdating ref = getNameUpdating();
		ref.setNewElementName(newName);
		try {
			return ref.checkNewElementName(newName);
		} catch (CoreException e) {
			DLTKUIPlugin.log(e);
			return RefactoringStatus.createFatalErrorStatus(
					RefactoringMessages.RenameRefactoringWizard_internal_error);
		}
	}
}