package org.apache.maven.scm.provider.synergy.command.update;
   
   /*
    * 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 org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.ScmVersion;
  import org.apache.maven.scm.command.changelog.ChangeLogCommand;
  import org.apache.maven.scm.command.update.AbstractUpdateCommand;
  import org.apache.maven.scm.command.update.UpdateScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.synergy.command.SynergyCommand;
  import org.apache.maven.scm.provider.synergy.command.changelog.SynergyChangeLogCommand;
  import org.apache.maven.scm.provider.synergy.repository.SynergyScmProviderRepository;
  import org.apache.maven.scm.provider.synergy.util.SynergyUtil;
  import org.codehaus.plexus.util.FileUtils;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author <a href="mailto:julien.henry@capgemini.com">Julien Henry</a>
   *
   */
  public class SynergyUpdateCommand
      extends AbstractUpdateCommand
      implements SynergyCommand
  {
      /** {@inheritDoc} */
      protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repository, ScmFileSet fileSet,
                                                      ScmVersion version )
          throws ScmException
      {
          if ( getLogger().isDebugEnabled() )
          {
              getLogger().debug( "executing update command..." );
          }
          SynergyScmProviderRepository repo = (SynergyScmProviderRepository) repository;
  
          if ( getLogger().isDebugEnabled() )
          {
              getLogger().debug( "basedir: " + fileSet.getBasedir() );
          }
  
          String ccmAddr = SynergyUtil.start( getLogger(), repo.getUser(), repo.getPassword(), null );
  
          File waPath;
          try
          {
              String projectSpec =
                  SynergyUtil.getWorkingProject( getLogger(), repo.getProjectSpec(), repo.getUser(), ccmAddr );
              SynergyUtil.reconfigureProperties( getLogger(), projectSpec, ccmAddr );
              SynergyUtil.reconfigure( getLogger(), projectSpec, ccmAddr );
              // We need to get WA path
              waPath = SynergyUtil.getWorkArea( getLogger(), projectSpec, ccmAddr );
          }
          finally
          {
              SynergyUtil.stop( getLogger(), ccmAddr );
          }
  
          File source = new File( waPath, repo.getProjectName() );
  
          // Move file from work area to expected dir if not the same
          List<ScmFile> modifications = new ArrayList<ScmFile>();
          if ( !source.equals( fileSet.getBasedir() ) )
          {
              if ( getLogger().isInfoEnabled() )
              {
                  getLogger().info( "We will copy modified files from Synergy Work Area [" + source
                                    + "] to expected folder [" + fileSet.getBasedir() + "]" );
              }
              try
              {
                  copyDirectoryStructure( source, fileSet.getBasedir(), modifications );
              }
              catch ( IOException e1 )
              {
                 throw new ScmException( "Unable to copy directory structure", e1 );
             }
         }
 
         return new UpdateScmResult( "ccm reconcile -uwa ...", modifications );
     }
 
     protected ChangeLogCommand getChangeLogCommand()
     {
         SynergyChangeLogCommand changeLogCmd = new SynergyChangeLogCommand();
 
         changeLogCmd.setLogger( getLogger() );
 
         return changeLogCmd;
     }
 
     /**
      * Copies a entire directory structure and collect modifications.
      * <p/>
      * Note:
      * <ul>
      * <li>It will include empty directories.
      * <li>The <code>sourceDirectory</code> must exists.
      * </ul>
      *
      * @param sourceDirectory
      * @param destinationDirectory
      * @throws IOException
      */
     public static void copyDirectoryStructure( File sourceDirectory, File destinationDirectory,
                                                List<ScmFile> modifications )
         throws IOException
     {
         if ( !sourceDirectory.exists() )
         {
             throw new IOException( "Source directory doesn't exists (" + sourceDirectory.getAbsolutePath() + ")." );
         }
 
         File[] files = sourceDirectory.listFiles();
 
         String sourcePath = sourceDirectory.getAbsolutePath();
 
         for ( File file : files )
         {
             String dest = file.getAbsolutePath();
 
             dest = dest.substring( sourcePath.length() + 1 );
 
             File destination = new File( destinationDirectory, dest );
 
             if ( file.isFile() )
             {
 
                 if ( file.lastModified() != destination.lastModified() )
                 {
 
                     destination = destination.getParentFile();
 
                     FileUtils.copyFileToDirectory( file, destination );
 
                     modifications.add( new ScmFile( file.getAbsolutePath(), ScmFileStatus.UPDATED ) );
 
                 }
             }
             else if ( file.isDirectory() )
             {
                 if ( !destination.exists() && !destination.mkdirs() )
                 {
                     throw new IOException(
                         "Could not create destination directory '" + destination.getAbsolutePath() + "'." );
                 }
 
                 copyDirectoryStructure( file, destination, modifications );
             }
             else
             {
                 throw new IOException( "Unknown file type: " + file.getAbsolutePath() );
             }
         }
     }
 
 }