package org.apache.maven.scm.provider.perforce.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.ScmException;
  import org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.command.status.AbstractStatusCommand;
  import org.apache.maven.scm.command.status.StatusScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.perforce.PerforceScmProvider;
  import org.apache.maven.scm.provider.perforce.command.PerforceCommand;
  import org.apache.maven.scm.provider.perforce.command.PerforceVerbMapper;
  import org.apache.maven.scm.provider.perforce.repository.PerforceScmProviderRepository;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  /**
   * @author Mike Perham
   *
   */
  public class PerforceStatusCommand
      extends AbstractStatusCommand
      implements PerforceCommand
  {
      private String actualLocation;
  
      /** {@inheritDoc} */
      protected StatusScmResult executeStatusCommand( ScmProviderRepository repo, ScmFileSet files )
          throws ScmException
      {
          PerforceScmProviderRepository prepo = (PerforceScmProviderRepository) repo;
          actualLocation = PerforceScmProvider.getRepoPath( getLogger(), prepo, files.getBasedir() );
          PerforceStatusConsumer consumer = new PerforceStatusConsumer();
          Commandline command = readOpened( prepo, files, consumer );
  
          if ( consumer.isSuccess() )
          {
              List<ScmFile> scmfiles = createResults( actualLocation, consumer );
              return new StatusScmResult( command.toString(), scmfiles );
          }
  
          return new StatusScmResult( command.toString(), "Unable to get status", consumer
                  .getOutput(), consumer.isSuccess() );
      }
  
      public static List<ScmFile> createResults( String repoPath, PerforceStatusConsumer consumer )
      {
          List<ScmFile> results = new ArrayList<ScmFile>();
          List<String> files = consumer.getDepotfiles();
          Pattern re = Pattern.compile( "([^#]+)#\\d+ - ([^ ]+) .*" );
          for ( Iterator<String> it = files.iterator(); it.hasNext(); )
          {
              String filepath = it.next();
              Matcher matcher = re.matcher( filepath );
              if ( !matcher.matches() )
              {
                  System.err.println( "Skipping " + filepath );
                  continue;
              }
              String path = matcher.group( 1 );
              String verb = matcher.group( 2 );
  
              ScmFile scmfile = new ScmFile( path.substring( repoPath.length() + 1 ).trim(), PerforceVerbMapper
                  .toStatus( verb ) );
              results.add( scmfile );
          }
          return results;
      }
  
      private Commandline readOpened( PerforceScmProviderRepository prepo, ScmFileSet files,
                                      PerforceStatusConsumer consumer )
      {
          Commandline cl = createOpenedCommandLine( prepo, files.getBasedir(), actualLocation );
         try
         {
             if ( getLogger().isDebugEnabled() )
             {
                 getLogger().debug( PerforceScmProvider.clean( "Executing " + cl.toString() ) );
             }
 
             CommandLineUtils.StringStreamConsumer err = new CommandLineUtils.StringStreamConsumer();
             int exitCode = CommandLineUtils.executeCommandLine( cl, consumer, err );
 
             if ( exitCode != 0 )
             {
                 String cmdLine = CommandLineUtils.toString( cl.getCommandline() );
 
                 StringBuilder msg = new StringBuilder( "Exit code: " + exitCode + " - " + err.getOutput() );
                 msg.append( '\n' );
                 msg.append( "Command line was:" + cmdLine );
 
                 throw new CommandLineException( msg.toString() );
             }
         }
         catch ( CommandLineException e )
         {
             if ( getLogger().isErrorEnabled() )
             {
                 getLogger().error( "CommandLineException " + e.getMessage(), e );
             }
         }
 
         return cl;
     }
 
     public static Commandline createOpenedCommandLine( PerforceScmProviderRepository repo, File workingDirectory,
                                                        String location )
     {
         Commandline command = PerforceScmProvider.createP4Command( repo, workingDirectory );
         command.createArg().setValue( "opened" );
         command.createArg().setValue( PerforceScmProvider.getCanonicalRepoPath( location ) );
         return command;
     }
 }