/*******************************************************************************
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 *******************************************************************************/

package com.liferay.ide.project.ui.action;

import com.liferay.ide.core.AbstractConfigurationElement;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IContributor;
import org.eclipse.core.runtime.InvalidRegistryObjectException;
import org.eclipse.core.runtime.spi.RegistryContributor;
import org.eclipse.osgi.util.NLS;

/**
 * @author Greg Amerson
 */
public abstract class AbstractNewProjectWizardProjectElement extends AbstractConfigurationElement
{

    protected class ProjectClassElement extends AbstractConfigurationElement
    {
        @Override
        public IConfigurationElement[] getChildren( String name ) throws InvalidRegistryObjectException
        {
            if( NewWizardAction.TAG_PARAMETER.equals( name ) )
            {
                return new IConfigurationElement[] { new ProjectParameterElement() };
            }

            return null;
        }

    }

    protected class ProjectDescriptionElement extends AbstractConfigurationElement
    {
        @Override
        public String getValue() throws InvalidRegistryObjectException
        {
            return Msgs.importDescription;
        }
    }

    protected class ProjectParameterElement extends AbstractConfigurationElement
    {
        @Override
        public String getAttribute( String name ) throws InvalidRegistryObjectException
        {
            return getProjectParameterElementAttribute( name );
        }
    }

    @Override
    public Object createExecutableExtension( String propertyName ) throws CoreException
    {
        if( NewWizardAction.ATT_CLASS.equals( propertyName ) )
        {
            return createNewWizard();
        }

        return null;
    }

    @Override
    public String getAttribute( String attr ) throws InvalidRegistryObjectException
    {
        return getProjectElementAttribute( attr );
    }

    @Override
    public IConfigurationElement[] getChildren( String name ) throws InvalidRegistryObjectException
    {
        if( NewWizardAction.TAG_DESCRIPTION.equals( name ) )
        {
            return new IConfigurationElement[] { new ProjectDescriptionElement() };
        }
        else if( NewWizardAction.TAG_CLASS.equals( name ) )
        {
            return new IConfigurationElement[] { new ProjectClassElement() };
        }

        return null;
    }

    @Override
    public IContributor getContributor() throws InvalidRegistryObjectException
    {
        return new RegistryContributor( null, getContributorID(), null, null );
    }

    protected abstract Object createNewWizard();

    protected abstract String getContributorID();

    protected abstract String getProjectElementAttribute( String attr );

    protected abstract String getProjectParameterElementAttribute( String name );

    private static class Msgs extends NLS
    {
        public static String importDescription;

        static
        {
            initializeMessages( AbstractNewProjectWizardProjectElement.class.getName(), Msgs.class );
        }
    }
}