/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package org.apache.tools.ant.taskdefs.optional.starteam;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.starbase.starteam.Label;
import com.starbase.starteam.View;
import com.starbase.starteam.ViewConfiguration;
import com.starbase.util.OLEDate;

import org.apache.tools.ant.BuildException;

/**
 * Creates a view label in StarTeam at the specified view.
 *
 * Ant Usage:
 * <pre>
 * &lt;taskdef name="stlabel"
 *          classname="org.apache.tools.ant.taskdefs.optional.starteam.StarTeamLabel"/&lt;
 *     &lt;stlabel
 * label="1.0" lastbuild="20011514100000" description="Successful Build"
 * username="BuildMaster" password="ant"
 * starteamurl="server:port/project/view"/&gt;
 * </pre>
 *
 * @author Christopher Charlier, ThoughtWorks, Inc. 2001
 * @author <a href="mailto:jcyip@thoughtworks.com">Jason Yip</a>
 * @see <A HREF="http://www.starbase.com/">StarBase Web Site</A>
 *
 * @ant.task name="stlabel" category="scm"
 */
public class StarTeamLabel extends StarTeamTask {

    /**
     * The name of the label to be set in Starteam.
     */
    private String labelName;

    /**
     * The label description to be set in Starteam.
     */
    private String description;

    /**
     * The label type to be set in Starteam.
     * "build" or "intermediate"
     */
    private String labelType = "build";
    
    /**
     * The time of the last successful. The new label will be a snapshot of the
     * repository at this time. String should be formatted as "yyyyMMddHHmmss"
     */
    private OLEDate lastBuild = null;

    private static final SimpleDateFormat DATE_FORMAT =
            new SimpleDateFormat("yyyyMMddHHmmss");

    /**
    * The name to be given to the label; required.
    */
    public void setLabel(String label) {
        this.labelName = label;
    }

    /**
     * The label type to be set in Starteam.
     * @param labelType "build" (default) or "intermediate"
     */
    public void setLabelType(String labelType) {
        if (labelType == null) {
            throw new BuildException("Illegal labelType '" + labelType + "' specified. Should be 'build' or 'intermediate'");
        }
        if (labelType.equalsIgnoreCase("build")
        || labelType.equalsIgnoreCase("intermediate")) {
            this.labelType = labelType;
        } else {
            throw new BuildException("Illegal labelType '" + labelType + "' specified. Should be 'build' or 'intermediate'");
        }
    }

    /**
     * Optional description of the label to be stored in the StarTeam project.
     */
    public void setDescription(String description) {
        this.description = description;
    }

    /**
     * The timestamp of the build that will be stored with the label; required.  
     * Must be formatted <code>yyyyMMddHHmmss</code>
     */
    public void setLastBuild(String lastbuild) throws BuildException {
        try {
            Date lastBuildTime = DATE_FORMAT.parse(lastbuild);
            this.lastBuild = new OLEDate(lastBuildTime);
        } catch (ParseException e) {
            throw new BuildException("Unable to parse the date '" + lastbuild + "'", e);
        }
    }

    /**
     * This method does the work of creating the new view and checking it into
     * Starteam.
     *
     */
    public void execute() throws BuildException {

        View snapshot = openView();

        // Create the new label and update the repository
        new Label(snapshot, labelName, description, this.lastBuild, labelType.equalsIgnoreCase("build")).update();
        log("Created Label " + labelName);
    }

    /**
     * Override of base-class abstract function creates an
     * appropriately configured view.  For labels this a view
     * configured as of this.lastBuild.
     *
     * @param raw the unconfigured <code>View</code>
     * @return the snapshot <code>View</code> appropriately configured.
     */
    protected View createSnapshotView(View raw) {
        return new View(raw, ViewConfiguration.createFromTime(this.lastBuild));
    }

}