package org.apache.maven.shared.release.phase;
   
   /*
    * 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.io.IOException;
  import java.nio.file.LinkOption;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  
  import org.apache.maven.artifact.ArtifactUtils;
  import org.apache.maven.model.Model;
  import org.apache.maven.model.Scm;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.scm.repository.ScmRepository;
  import org.apache.maven.shared.release.ReleaseExecutionException;
  import org.apache.maven.shared.release.ReleaseResult;
  import org.apache.maven.shared.release.config.ReleaseDescriptor;
  import org.apache.maven.shared.release.scm.ScmTranslator;
  import org.apache.maven.shared.release.util.ReleaseUtil;
  import org.codehaus.plexus.component.annotations.Component;
  
  /**
   * Rewrite POMs for branch.
   *
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   * @version $Id$
   */
  @Component( role = ReleasePhase.class, hint = "rewrite-poms-for-branch" )
  public class RewritePomsForBranchPhase
      extends AbstractRewritePomsPhase
  {
      @Override
      protected final String getPomSuffix()
      {
          return "branch";
      }
  
      @Override
      protected void transformScm( MavenProject project, Model modelTarget, ReleaseDescriptor releaseDescriptor,
                                   String projectId, ScmRepository scmRepository, ReleaseResult result )
      throws ReleaseExecutionException
      {
          // If SCM is null in original model, it is inherited, no mods needed
          if ( project.getScm() != null )
          {
              Scm scmRoot = modelTarget.getScm();
  
              if ( scmRoot != null )
              {
                  try
                  {
                      translateScm( project, releaseDescriptor, scmRoot, scmRepository, result );
                  }
                  catch ( IOException e )
                  {
                      throw new ReleaseExecutionException( e.getMessage(), e );
                  }
              }
              else
              {
                  MavenProject parent = project.getParent();
                  if ( parent != null )
                  {
                      // If the SCM element is not present, only add it if the parent was not mapped (ie, it's external to
                      // the release process and so has not been modified, so the values will not be correct on the tag),
                      String parentId = ArtifactUtils.versionlessKey( parent.getGroupId(), parent.getArtifactId() );
                      if ( releaseDescriptor.getOriginalScmInfo( parentId ) == null )
                      {
                          // we need to add it, since it has changed from the inherited value
                          scmRoot = new Scm();
                          // reset default value (HEAD)
                          scmRoot.setTag( null );
  
                          try
                          {
                              if ( translateScm( project, releaseDescriptor, scmRoot, scmRepository, result ) )
                              {
                                  modelTarget.setScm( scmRoot );
                              }
                          }
                          catch ( IOException e )
                          {
                             throw new ReleaseExecutionException( e.getMessage(), e );
                         }
                     }
                 }
             }
         }
     }
 
     private boolean translateScm( MavenProject project, ReleaseDescriptor releaseDescriptor, Scm scmTarget,
                                   ScmRepository scmRepository, ReleaseResult relResult )
     throws IOException
     {
         ScmTranslator translator = getScmTranslators().get( scmRepository.getProvider() );
         boolean result = false;
         if ( translator != null )
         {
             Scm scm = project.getOriginalModel().getScm();
             if ( scm == null )
             {
                 scm = project.getScm();
             }
 
             String branchName = releaseDescriptor.getScmReleaseLabel();
             String branchBase = releaseDescriptor.getScmBranchBase();
 
             // TODO: svn utils should take care of prepending this
             if ( branchBase != null )
             {
                 branchBase = "scm:svn:" + branchBase;
             }
 
             Path projectBasedir = project.getBasedir().toPath().toRealPath( LinkOption.NOFOLLOW_LINKS );
             Path workingDirectory = Paths.get( releaseDescriptor.getWorkingDirectory() );
 
             int count = ReleaseUtil.getBaseWorkingDirectoryParentCount( workingDirectory, projectBasedir );
             
             if ( scm.getConnection() != null )
             {
                 String rootUrl = ReleaseUtil.realignScmUrl( count, scm.getConnection() );
 
                 String subDirectoryBranch = scm.getConnection().substring( rootUrl.length() );
                 if ( !subDirectoryBranch.startsWith( "/" ) )
                 {
                     subDirectoryBranch = "/" + subDirectoryBranch;
                 }
 
                 String scmConnectionBranch = branchBase;
                 if ( scmConnectionBranch != null )
                 {
                     String trunkUrl = scm.getDeveloperConnection();
                     if ( trunkUrl == null )
                     {
                         trunkUrl = scm.getConnection();
                     }
                     scmConnectionBranch = translateUrlPath( trunkUrl, branchBase, scm.getConnection() );
                 }
 
                 String value =
                     translator.translateBranchUrl( scm.getConnection(), branchName + subDirectoryBranch,
                                                    scmConnectionBranch );
                 if ( !value.equals( scm.getConnection() ) )
                 {
                     scmTarget.setConnection( value );
                     result = true;
                 }
             }
 
             if ( scm.getDeveloperConnection() != null )
             {
                 String rootUrl = ReleaseUtil.realignScmUrl( count, scm.getDeveloperConnection() );
 
                 String subDirectoryBranch = scm.getDeveloperConnection().substring( rootUrl.length() );
                 if ( !subDirectoryBranch.startsWith( "/" ) )
                 {
                     subDirectoryBranch = "/" + subDirectoryBranch;
                 }
 
                 String value =
                     translator.translateBranchUrl( scm.getDeveloperConnection(), branchName + subDirectoryBranch,
                                                    branchBase );
                 if ( !value.equals( scm.getDeveloperConnection() ) )
                 {
                     scmTarget.setDeveloperConnection( value );
                     result = true;
                 }
             }
 
             if ( scm.getUrl() != null )
             {
                 String rootUrl = ReleaseUtil.realignScmUrl( count, scm.getUrl() );
 
                 String subDirectoryBranch = scm.getUrl().substring( rootUrl.length() );
                 if ( !subDirectoryBranch.startsWith( "/" ) )
                 {
                     subDirectoryBranch = "/" + subDirectoryBranch;
                 }
 
                 String tagScmUrl = branchBase;
                 if ( tagScmUrl != null )
                 {
                     String trunkUrl = scm.getDeveloperConnection();
                     if ( trunkUrl == null )
                     {
                         trunkUrl = scm.getConnection();
                     }
                     tagScmUrl = translateUrlPath( trunkUrl, branchBase, scm.getUrl() );
                 }
 
                 // use original branch base without protocol
                 String value = translator.translateBranchUrl( scm.getUrl(), branchName + subDirectoryBranch,
                                                               tagScmUrl );
                 if ( !value.equals( scm.getUrl() ) )
                 {
                     scmTarget.setUrl( value );
                     result = true;
                 }
             }
 
             if ( branchName != null )
             {
                 String value = translator.resolveTag( branchName );
                 if ( value != null && !value.equals( scm.getTag() ) )
                 {
                     scmTarget.setTag( value );
                     result = true;
                 }
             }
         }
         else
         {
             String message = "No SCM translator found - skipping rewrite";
 
             relResult.appendDebug( message );
 
             getLogger().debug( message );
         }
         return result;
     }
 
     @Override
     protected String getOriginalVersion( ReleaseDescriptor releaseDescriptor, String projectKey, boolean simulate )
     {
         return releaseDescriptor.getProjectOriginalVersion( projectKey );
     }
 
     @Override
     protected String getNextVersion( ReleaseDescriptor releaseDescriptor, String key )
     {
         return releaseDescriptor.getProjectReleaseVersion( key );
     }
 
     @Override
     protected String getResolvedSnapshotVersion( String artifactVersionlessKey,
                                                  ReleaseDescriptor releaseDescriptor )
     {
         return releaseDescriptor.getDependencyReleaseVersion( artifactVersionlessKey );
     }
 }