package org.apache.maven.scm.provider.starteam.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 org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.log.ScmLogger;
  import org.codehaus.plexus.util.cli.StreamConsumer;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author <a href="mailto:dantran@gmail.com">Dan T. Tran</a>
   *
   */
  public class StarteamStatusConsumer
      implements StreamConsumer
  {
      private ScmLogger logger;
  
      private String workingDirectory;
  
      private List<ScmFile> changedFiles = new ArrayList<ScmFile>();
  
      /**
       * Marks current directory data
       */
      private static final String DIR_MARKER = "(working dir: ";
  
      /**
       * Marks current file data
       */
      private static final String FILE_MARKER = "History for: ";
  
      /**
       * Marks current file status
       */
      private static final String STATUS_MARKER = "Status: ";
  
      /**
       * Marks current file status
       */
      private static final String OUTDATE_MARKER = "Out of Date";
  
      private static final String MISSING_MARKER = "Missing";
  
      private static final String CURRENT_MARKER = "Current";
  
      private static final String MERGE_MARKER = "Merge";
  
      private static final String MODIFIED_MARKER = "Modified";
  
      private String currentDir = "";
  
      private String currentFile = "";
  
      public StarteamStatusConsumer( ScmLogger logger, File basedir )
      {
          this.logger = logger;
  
          this.workingDirectory = basedir.getPath().replace( '\\', '/' );
      }
  
      /** {@inheritDoc} */
      public void consumeLine( String line )
      {
          if ( logger.isDebugEnabled() )
          {
              logger.debug( line );
          }
  
          int pos = 0;
  
          if ( ( pos = line.indexOf( DIR_MARKER ) ) != -1 )
          {
              processGetDir( line, pos );
          }
          else if ( ( pos = line.indexOf( FILE_MARKER ) ) != -1 )
          {
              processGetFile( line, pos );
         }
         else if ( ( pos = line.indexOf( STATUS_MARKER ) ) != -1 )
         {
             processStatus( line, pos );
         }
         else
         {
             //do nothing
         }
     }
 
     private void processGetDir( String line, int pos )
     {
         String dirPath = line.substring( pos + DIR_MARKER.length(), line.length() - 1 ).replace( '\\', '/' );
 
         this.currentDir = "." + dirPath.substring( workingDirectory.length() );
     }
 
     private void processGetFile( String line, int pos )
     {
         String fileName = line.substring( pos + FILE_MARKER.length(), line.length() );
 
         this.currentFile = this.currentDir + "/" + fileName;
     }
 
     private void processStatus( String line, int pos )
     {
         String status = line.substring( pos + STATUS_MARKER.length(), line.length() );
 
         if ( status.equals( OUTDATE_MARKER ) )
         {
             changedFiles.add( new ScmFile( this.currentFile, ScmFileStatus.MODIFIED ) );
 
             if ( logger.isInfoEnabled() )
             {
                 logger.info( "Out of Date file: " + this.currentFile );
             }
         }
         else if ( status.equals( MODIFIED_MARKER ) )
         {
             changedFiles.add( new ScmFile( this.currentFile, ScmFileStatus.MODIFIED ) );
 
             if ( logger.isInfoEnabled() )
             {
                 logger.info( "Modified file: " + this.currentFile );
             }
         }
         else if ( status.equals( MISSING_MARKER ) )
         {
             changedFiles.add( new ScmFile( this.currentFile, ScmFileStatus.ADDED ) );
 
             if ( logger.isInfoEnabled() )
             {
                 logger.info( "Missing file: " + this.currentFile );
             }
         }
         else if ( status.equals( MERGE_MARKER ) )
         {
             changedFiles.add( new ScmFile( this.currentFile, ScmFileStatus.CONFLICT ) );
 
             if ( logger.isInfoEnabled() )
             {
                 logger.info( "Conflict file: " + this.currentFile );
             }
         }
         else if ( status.equals( CURRENT_MARKER ) )
         {
             //ignore
         }
         else
         {
             if ( logger.isWarnEnabled() )
             {
                 logger.warn( "status unknown (" + status + "): " + this.currentFile );
             }
         }
     }
 
     public List<ScmFile> getChangedFiles()
     {
         return changedFiles;
     }
 
 }