package org.apache.maven.plugin.eclipse;

/*
 * Copyright 2001-2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.util.Iterator;

import org.apache.maven.model.Plugin;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.xml.Xpp3Dom;

/**
 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
 * @author <a href="mailto:fgiust@users.sourceforge.net">Fabrizio Giustina</a>
 * @version $Id: $
 */
public class EclipseUtils
{

    private EclipseUtils()
    {
        // don't instantiate
    }

    public static String toRelativeAndFixSeparator( File basedir, String absolutePath, boolean replaceSlashes )
    {
        String relative;

        if ( absolutePath.startsWith( basedir.getAbsolutePath() ) )
        {
            relative = absolutePath.substring( basedir.getAbsolutePath().length() + 1 );
        }
        else
        {
            relative = absolutePath;
        }

        relative = StringUtils.replace( relative, "\\", "/" ); //$NON-NLS-1$ //$NON-NLS-2$

        if ( replaceSlashes )
        {
            relative = StringUtils.replace( relative, "/", "-" ); //$NON-NLS-1$ //$NON-NLS-2$
        }

        return relative;
    }

    /**
     * @todo there should be a better way to do this
     */
    public static String getPluginSetting( MavenProject project, String artifactId, String optionName,
                                          String defaultValue )
    {
        for ( Iterator it = project.getModel().getBuild().getPlugins().iterator(); it.hasNext(); )
        {
            Plugin plugin = (Plugin) it.next();

            if ( plugin.getArtifactId().equals( artifactId ) )
            {
                Xpp3Dom o = (Xpp3Dom) plugin.getConfiguration();

                if ( o != null && o.getChild( optionName ) != null )
                {
                    return o.getChild( optionName ).getValue();
                }
            }
        }

        return defaultValue;
    }
}