/*

 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:  

 *

 */

package com.nokia.helium.scm.ant.actions;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import org.apache.maven.scm.ScmException;

import org.apache.maven.scm.ScmTag;

import org.apache.maven.scm.command.export.ExportScmResult;

import org.apache.maven.scm.manager.ScmManager;

import org.apache.maven.scm.repository.ScmRepository;

import org.apache.tools.ant.BuildException;

import com.nokia.helium.scm.ant.types.Tag;

/**

 * Get a snapshot of a particular revision into a folder.

 *

 * <pre>

 * <hlm:scm verbose="true" scmUrl="scm:${repo.type}:${repo.dir}/test2">

 *    <hlm:export basedir="${repo.dir}/test2" destpath="${repo.dir}/export" />

 * </hlm:scm>

 * </pre>

 *

 * @ant.type name="export" category="SCM"

 */

public class ExportAction extends BaseDirectoryScmAction {

    private File destPath;

    private List<Tag> tags = new ArrayList<Tag>();

    /**

     * Create a tag sub-element.

     * @return the tag element.

     */

    public Tag createTag() {

        Tag tag = new Tag();

        add(tag);

        return tag;

    }

    /**

     * Add a tag.

     * @param tag

     */

    public void add(Tag tag) {

        tags.add(tag);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void execute(ScmRepository repository) throws ScmException {

        ScmManager scmManager = getTask().getScmManager();

            throw new ScmException("destPath attribute has not been provided.");

            throw new ScmException(

                    "You can only specify one tag nested element.");

        ExportScmResult result;

        try {

            if (tags.size() == 0) {

                getTask().log(

                        "Exporting " + getScmFileSet().getBasedir() + " under "

                                + getDestPath().getAbsolutePath() + ".");

                result = scmManager.export(repository, getScmFileSet(),

                        getDestPath().getAbsolutePath());

            } else {

                String tagName = tags.get(0).getName();

                getTask().log(

                        "Exporting revision " + tagName + " of "

                                + getScmFileSet().getBasedir() + " under "

                                + getDestPath().getAbsolutePath() + ".");

                result = scmManager.export(repository, getScmFileSet(),

                        new ScmTag(tagName), getDestPath().getAbsolutePath());

            }

        } catch (ScmException e) {

            throw new BuildException("SCM export action failed: " + e);

        }

        if (!result.isSuccess()) {

            throw new BuildException("SCM export action failed: "

                    + result.getProviderMessage());

        }

        // Dump created files.

        for (Object file : result.getExportedFiles().toArray()) {

            getTask().log(file.toString());

        }

    }

    public File getDestPath() {

        return destPath;

    }

    public void setDestPath(File destPath) {

        this.destPath = destPath;

    }

}