/*
    * 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.svn.svnexe.command.update;
  
  import java.io.File;
  
  import org.apache.commons.lang3.StringUtils;
  import org.apache.maven.scm.ScmBranch;
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmTag;
  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.command.update.UpdateScmResultWithRevision;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.svn.SvnTagBranchUtils;
  import org.apache.maven.scm.provider.svn.command.SvnCommand;
  import org.apache.maven.scm.provider.svn.repository.SvnScmProviderRepository;
  import org.apache.maven.scm.provider.svn.svnexe.command.SvnCommandLineUtils;
  import org.apache.maven.scm.provider.svn.svnexe.command.changelog.SvnChangeLogCommand;
  import org.apache.maven.scm.provider.svn.util.SvnUtil;
  import org.apache.maven.scm.providers.svn.settings.Settings;
  import org.codehaus.plexus.util.Os;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   *
   */
  public class SvnUpdateCommand extends AbstractUpdateCommand implements SvnCommand {
      private final boolean interactive;
  
      public SvnUpdateCommand(boolean interactive) {
          this.interactive = interactive;
      }
  
      /** {@inheritDoc} */
      protected UpdateScmResult executeUpdateCommand(ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version)
              throws ScmException {
          Commandline cl = createCommandLine((SvnScmProviderRepository) repo, fileSet.getBasedir(), version);
  
          SvnUpdateConsumer consumer = new SvnUpdateConsumer(fileSet.getBasedir());
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          if (logger.isInfoEnabled()) {
              logger.info("Executing: " + SvnCommandLineUtils.cryptPassword(cl));
  
              if (Os.isFamily(Os.FAMILY_WINDOWS)) {
                  logger.info("Working directory: " + cl.getWorkingDirectory().getAbsolutePath());
              }
          }
  
          int exitCode;
  
          try {
              exitCode = SvnCommandLineUtils.execute(cl, consumer, stderr);
          } catch (CommandLineException ex) {
              throw new ScmException("Error while executing command.", ex);
          }
  
          if (exitCode != 0) {
              return new UpdateScmResult(cl.toString(), "The svn command failed.", stderr.getOutput(), false);
          }
  
          UpdateScmResultWithRevision result = new UpdateScmResultWithRevision(
                  cl.toString(), consumer.getUpdatedFiles(), String.valueOf(consumer.getRevision()));
  
          result.setChanges(consumer.getChangeSets());
  
          if (logger.isDebugEnabled()) {
              logger.debug("changeSets " + consumer.getChangeSets());
          }
  
          return result;
      }
  
      // ----------------------------------------------------------------------
      //
     // ----------------------------------------------------------------------
     public Commandline createCommandLine(
             SvnScmProviderRepository repository, File workingDirectory, ScmVersion version) {
         return createCommandLine(repository, workingDirectory, version, true);
     }
 
     public Commandline createCommandLine(
             SvnScmProviderRepository repository, File workingDirectory, ScmVersion version, boolean interactive) {
         Settings settings = SvnUtil.getSettings();
 
         String workingDir = workingDirectory.getAbsolutePath();
 
         if (settings.isUseCygwinPath()) {
             workingDir = settings.getCygwinMountPath() + "/" + workingDir;
             workingDir = StringUtils.replace(workingDir, ":", "");
             workingDir = StringUtils.replace(workingDir, "\\", "/");
         }
 
         if (version != null && StringUtils.isEmpty(version.getName())) {
             version = null;
         }
 
         Commandline cl = SvnCommandLineUtils.getBaseSvnCommandLine(workingDirectory, repository, interactive);
 
         if (version == null || SvnTagBranchUtils.isRevisionSpecifier(version)) {
             cl.createArg().setValue("update");
 
             if (version != null && StringUtils.isNotEmpty(version.getName())) {
                 cl.createArg().setValue("-r");
                 cl.createArg().setValue(version.getName());
             }
 
             cl.createArg().setValue(workingDir + "@");
         } else {
             if (version instanceof ScmBranch) {
                 // The tag specified does not appear to be numeric, so assume it refers
                 // to a branch/tag url and perform a switch operation rather than update
                 cl.createArg().setValue("switch");
                 if (version instanceof ScmTag) {
                     String tagUrl = SvnTagBranchUtils.resolveTagUrl(repository, (ScmTag) version);
                     cl.createArg().setValue(tagUrl + "@");
                 } else {
                     String branchUrl = SvnTagBranchUtils.resolveBranchUrl(repository, (ScmBranch) version);
                     cl.createArg().setValue(branchUrl + "@");
                 }
                 cl.createArg().setValue(workingDir + "@");
             }
         }
 
         return cl;
     }
 
     /** {@inheritDoc} */
     protected ChangeLogCommand getChangeLogCommand() {
         return new SvnChangeLogCommand(interactive);
     }
 }