package org.apache.maven.scm.provider.accurev.command.status;
   
   /*
    * 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.File;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.scm.CommandParameters;
  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.ScmResult;
  import org.apache.maven.scm.command.status.StatusScmResult;
  import org.apache.maven.scm.log.ScmLogger;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.accurev.AccuRev;
  import org.apache.maven.scm.provider.accurev.AccuRevCapability;
  import org.apache.maven.scm.provider.accurev.AccuRevException;
  import org.apache.maven.scm.provider.accurev.AccuRevScmProviderRepository;
  import org.apache.maven.scm.provider.accurev.AccuRevStat;
  import org.apache.maven.scm.provider.accurev.CategorisedElements;
  import org.apache.maven.scm.provider.accurev.command.AbstractAccuRevCommand;
  
  /**
   * 
   */
  public class AccuRevStatusCommand
      extends AbstractAccuRevCommand
  {
  
      public AccuRevStatusCommand( ScmLogger logger )
      {
          super( logger );
      }
  
      @Override
      protected ScmResult executeAccurevCommand( AccuRevScmProviderRepository repository, ScmFileSet fileSet,
                                                 CommandParameters parameters )
          throws ScmException, AccuRevException
      {
  
          AccuRev accuRev = repository.getAccuRev();
  
          File basedir = fileSet.getBasedir();
          List<File> elements = fileSet.getFileList();
  
          List<File> defunctElements = accuRev.stat( basedir, elements, AccuRevStat.DEFUNCT );
  
          if ( defunctElements == null )
          {
              return error( accuRev, "Failed retrieving defunct elements" );
          }
  
          List<File> keptElements = accuRev.stat( basedir, elements, AccuRevStat.KEPT );
  
          // Defunct elements are also listed as kept (AccuRev 4.7.1), exclude those here.
          if ( keptElements == null )
          {
              return error( accuRev, "Failed retrieving kept elements" );
          }
  
          List<File> modOrAddedElements = new ArrayList<File>();
  
          for ( File file : keptElements )
          {
              if ( !defunctElements.contains( file ) )
              {
                  modOrAddedElements.add( file );
              }
          }
  
          List<File> modifiedElements = accuRev.stat( basedir, elements, AccuRevStat.MODIFIED );
  
          if ( modifiedElements == null )
          {
              return error( accuRev, "Failed retrieving modified elements" );
          }
  
          modOrAddedElements.addAll( modifiedElements );
  
         CategorisedElements catElems = accuRev.statBackingStream( basedir, modOrAddedElements );
 
         if ( catElems == null )
         {
             return error( accuRev, "Failed stat backing stream to split modified and added elements" );
         }
 
         modifiedElements = catElems.getMemberElements();
 
         List<File> addedElements;
         if ( AccuRevCapability.STAT_ADDED_NOT_PROMOTED_BUG.isSupported( accuRev.getClientVersion() ) )
         {
             modOrAddedElements.removeAll( modifiedElements );
             addedElements = modOrAddedElements;
         }
         else
         {
             addedElements = catElems.getNonMemberElements();
         }
 
         List<File> missingElements = accuRev.stat( basedir, elements, AccuRevStat.MISSING );
 
         if ( missingElements == null )
         {
             return error( accuRev, "Failed retrieving missing elements" );
         }
 
         List<File> externalElements = accuRev.stat( basedir, elements, AccuRevStat.EXTERNAL );
 
         if ( externalElements == null )
         {
             return error( accuRev, "Failed retrieving external elements" );
         }
 
         List<ScmFile> resultFiles = getScmFiles( defunctElements, ScmFileStatus.DELETED );
         resultFiles.addAll( getScmFiles( modifiedElements, ScmFileStatus.MODIFIED ) );
         resultFiles.addAll( getScmFiles( addedElements, ScmFileStatus.ADDED ) );
         resultFiles.addAll( getScmFiles( missingElements, ScmFileStatus.MISSING ) );
         resultFiles.addAll( getScmFiles( externalElements, ScmFileStatus.UNKNOWN ) );
 
         return new StatusScmResult( accuRev.getCommandLines(), resultFiles );
 
     }
 
     private ScmResult error( AccuRev accuRev, String message )
     {
         return new StatusScmResult( accuRev.getCommandLines(), "AccuRev " + message, accuRev.getErrorOutput(), false );
     }
 
     public StatusScmResult status( ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters )
         throws ScmException
     {
         return (StatusScmResult) execute( repository, fileSet, parameters );
     }
 
 }