package org.apache.maven.plugins.release;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.util.HashMap;
import java.util.Map;

import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.model.Scm;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.shared.release.ReleaseExecutionException;
import org.apache.maven.shared.release.ReleaseFailureException;
import org.apache.maven.shared.release.config.ReleaseDescriptor;
import org.apache.maven.shared.release.config.ReleaseUtils;

/**
 * Update the POM versions for a project. This performs the normal version updates of the <tt>release:prepare</tt> goal
 * without making other modifications to the SCM such as tagging. For more info see <a
 * href="http://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html"
 * >http://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html</a>.
 * 
 * @author Paul Gier
 * @version $Id$
 * @since 2.0
 */
@Mojo( name = "update-versions", aggregator = true )
public class UpdateVersionsMojo
    extends AbstractReleaseMojo
{

    /**
     * Whether to automatically assign submodules the parent version. If set to false, the user will be prompted for the
     * version of each submodules.
     * 
     * @since 2.0
     */
    @Parameter( defaultValue = "false", property = "autoVersionSubmodules" )
    private boolean autoVersionSubmodules;

    /**
     * Whether to add a schema to the POM if it was previously missing on release.
     * 
     * @since 2.0
     */
    @Parameter( defaultValue = "true", property = "addSchema" )
    private boolean addSchema;

    /**
     * Default version to use for new local working copy.
     * 
     * @since 2.0
     */
    @Parameter( property = "developmentVersion" )
    private String developmentVersion;

    /**
     * {@inheritDoc}
     */
    public void execute()
        throws MojoExecutionException, MojoFailureException
    {
        ReleaseDescriptor config = createReleaseDescriptor();
        config.setAddSchema( addSchema );
        config.setAutoVersionSubmodules( autoVersionSubmodules );
        config.setDefaultDevelopmentVersion( developmentVersion );

        Map<String, Scm> originalScmInfo = new HashMap<String, Scm>();
        originalScmInfo.put( ArtifactUtils.versionlessKey( project.getGroupId(), project.getArtifactId() ),
                             project.getScm() );
        config.setOriginalScmInfo( originalScmInfo );

        // Create a config containing values from the session properties (ie command line properties with cli).
        ReleaseDescriptor sysPropertiesConfig =
            ReleaseUtils.copyPropertiesToReleaseDescriptor( session.getExecutionProperties() );
        mergeCommandLineConfig( config, sysPropertiesConfig );

        try
        {
            releaseManager.updateVersions( config, getReleaseEnvironment(), getReactorProjects() );
        }
        catch ( ReleaseExecutionException e )
        {
            throw new MojoExecutionException( e.getMessage(), e );
        }
        catch ( ReleaseFailureException e )
        {
            throw new MojoFailureException( e.getMessage(), e );
        }
    }
}