/*

 * 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.maven.scm.provider.hg;

import java.util.ArrayList;

import java.util.List;

/**

 * A version changeset.

 */

public class VersionChangeSet extends ChangeSet

{

    private static final String DATE_PATTERN = "yyyy-MM-dd";

    private static final String TIME_PATTERN = "HH:mm:ss";

    private List<ScmVersion> scmVersionList;

    /**

     * Constructor used when attributes aren't available until later

     */

    public VersionChangeSet()

    {

        super();

        scmVersionList = new ArrayList<ScmVersion>();

    }

    /**

    * Setter for ScmVersion

    */

    public void setScmVersion(ScmVersion scmVersion) throws ScmException

    {

        scmVersionList.add(scmVersion);

    }

    /**

     * Getter for ChangeFile list.

     *

     * @return List of ScmVersion list.

    */

    public List<ScmVersion> getScmVersion()

    {

        return scmVersionList;

    }

    /**

    * Added tbranch\tag\revision and changed format to match "hg log --verbose" output. 

    * File version has been removed, showing only file name

    * @return String to output the VersionChangeSet result

    */

    @SuppressWarnings("unchecked")

    @Override

    public String toString()

    {

        String result = "";

        for (ScmVersion versions : getScmVersion()) {

                result += versions.getType().toLowerCase() + ":" + versions.getName() + "\n";

            }

        }

            result += "user:" + getAuthor() + "\n";

            result += "date:" + getDate() + "\n";

        List<ChangeFile> files = getFiles();

            result += "files:";

                result += changeFile.getName() + " ";

            }

        }

            result += "\ndescription:" + getComment() + "\n";

        return result;

    }

     /**

     * Provide the changelog entry as an XML snippet.

     *

     * @return a changelog-entry in xml format

     * @task make sure comment doesn't contain CDATA tags - MAVEN114

     */

    @SuppressWarnings("unchecked")

    @Override

    public String toXML()

    {

        StringBuffer buffer = new StringBuffer();

        buffer.append( "\t<changelog-entry>\n" );

        if ( getDate() != null )

        {

            buffer.append( "\t\t<date pattern=\"" + getDateFormatted() + "\">" )

                .append( getDateFormatted() )

                .append( "</date>\n" )

                .append( "\t\t<time pattern=\"" + TIME_PATTERN + "\">" )

                .append( getTimeFormatted() )

                .append( "</time>\n" );

        }

        for (ScmVersion versions : getScmVersion()) {

            if (!versions.getName().equals("")) 

            {

                buffer.append("\t\t<" + versions.getType().toLowerCase() + ">\n")

                     .append("\t\t\t<name>")

                     .append(versions.getName())

                     .append("</name>\n");

                buffer.append("\t\t</" + versions.getType().toLowerCase() + ">\n");

            }

        }

        buffer.append( "\t\t<author><![CDATA[" )

            .append( getAuthor() )

            .append( "]]></author>\n" );

        List<ChangeFile> changeFiles = getFiles();

        for ( ChangeFile changeFile :  changeFiles)

        {

            buffer.append( "\t\t<file>\n" )

                .append( "\t\t\t<name>" )

                .append( escapeValue( changeFile.getName() ) )

                .append( "</name>\n" )

                .append( "\t\t\t<revision>" )

                .append( changeFile.getRevision() )

                .append( "</revision>\n" );

            buffer.append( "\t\t</file>\n" );

        }

        buffer.append( "\t\t<msg><![CDATA[" )

            .append( removeCDataEnd( getComment() ) )

            .append( "]]></msg>\n" );

        buffer.append( "\t</changelog-entry>\n" );

        return buffer.toString();

    }

     /**

     * remove a <code>]]></code> from comments (replace it with <code>] ] ></code>).

     *

     * @param message The message to modify

     * @return a clean string

     */

    private String removeCDataEnd( String message )

    {

        // check for invalid sequence ]]>

        int endCdata;

        while ( message != null && ( message.indexOf( "]]>" ) ) > -1 )

        {

            endCdata = message.indexOf( "]]>" );

            message = message.substring( 0, endCdata ) + "] ] >" + message.substring( endCdata + 3, message.length() );

        }

        return message;

    }

}