/*
    * 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.
   */
  
  package org.apache.maven.scm.provider.bazaar.command.tag;
  
  import java.io.File;
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.ScmResult;
  import org.apache.maven.scm.ScmTagParameters;
  import org.apache.maven.scm.command.tag.AbstractTagCommand;
  import org.apache.maven.scm.command.tag.TagScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.bazaar.BazaarUtils;
  import org.apache.maven.scm.provider.bazaar.command.BazaarConstants;
  import org.apache.maven.scm.provider.bazaar.command.BazaarConsumer;
  import org.apache.maven.scm.provider.bazaar.repository.BazaarScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  
  /**
   * @author <a href="mailto:johan.walles@gmail.com">Johan Walles</a>
   *
   */
  public class BazaarTagCommand extends AbstractTagCommand {
      protected ScmResult executeTagCommand( ScmProviderRepository repository,
              ScmFileSet fileSet, String tagName,
              ScmTagParameters scmTagParameters ) throws ScmException
      {
          if ( tagName == null || StringUtils.isEmpty( tagName.trim() ) ) {
              throw new ScmException( "tag name must be specified" );
          }
          
          if ( !fileSet.getFileList().isEmpty() ) {
              throw new ScmException( "tagging specific files is not allowed" );
          }
          
          // Perform the tagging operation
          File bazaarRoot = fileSet.getBasedir();
          BazaarConsumer consumer = new BazaarConsumer( getLogger() );
          String[] tagCmd = new String[] { BazaarConstants.TAG_CMD, tagName };
          ScmResult tagResult = BazaarUtils.execute( consumer, getLogger(), bazaarRoot, tagCmd );
          if ( !tagResult.isSuccess() ) {
              return new TagScmResult( null, tagResult );
          }
  
          // Do "bzr ls -R -r tag:tagName" to get a list of the tagged files
          BazaarLsConsumer lsConsumer = 
              new BazaarLsConsumer( getLogger(), bazaarRoot, ScmFileStatus.TAGGED );
          String[] lsCmd = new String[] {
                                         BazaarConstants.LS_CMD,
                                         BazaarConstants.RECURSIVE_OPTION,
                                         BazaarConstants.REVISION_OPTION,
                                         "tag:" + tagName
                                         };
          ScmResult lsResult = BazaarUtils.execute(lsConsumer, getLogger(), bazaarRoot, lsCmd);
          if ( !lsResult.isSuccess() ) {
              return new TagScmResult( null, lsResult );
          }
          
          // Push new tags to parent branch if any
          BazaarScmProviderRepository bazaarRepository = (BazaarScmProviderRepository) repository;
          if ( !bazaarRepository.getURI().equals( fileSet.getBasedir().getAbsolutePath() ) && repository.isPushChanges() )
          {
              String[] pushCmd = new String[] { BazaarConstants.PUSH_CMD, bazaarRepository.getURI() };
              ScmResult pushResult =
                  BazaarUtils.execute( new BazaarConsumer( getLogger() ), getLogger(), fileSet.getBasedir(), pushCmd );
              if ( !pushResult.isSuccess() ) {
                  return new TagScmResult( null, pushResult );
              }
          }
          
          return new TagScmResult( lsConsumer.getListedFiles(), tagResult );
      }
  }