/*
    * 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.git.gitexe.command.untag;
  
  import java.io.File;
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmResult;
  import org.apache.maven.scm.ScmUntagParameters;
  import org.apache.maven.scm.command.untag.AbstractUntagCommand;
  import org.apache.maven.scm.command.untag.UntagScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.git.command.GitCommand;
  import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
  import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /** {@inheritDoc} */
  public class GitUntagCommand extends AbstractUntagCommand implements GitCommand {
  
      /** {@inheritDoc} */
      public ScmResult executeUntagCommand(
              ScmProviderRepository repo, ScmFileSet fileSet, ScmUntagParameters scmUntagParameters) throws ScmException {
          String tag = scmUntagParameters.getTag();
          if (tag == null || tag.trim().isEmpty()) {
              throw new ScmException("tag name must be specified");
          }
  
          GitScmProviderRepository repository = (GitScmProviderRepository) repo;
  
          CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          int exitCode;
  
          Commandline clTag = createCommandLine(repository, fileSet.getBasedir(), tag);
  
          exitCode = GitCommandLineUtils.execute(clTag, stdout, stderr);
          if (exitCode != 0) {
              return new UntagScmResult(clTag.toString(), "The git-tag command failed.", stderr.getOutput(), false);
          }
  
          if (repo.isPushChanges()) {
              // and now push the tag to the configured upstream repository
              Commandline clPush = createPushCommandLine(repository, fileSet, tag);
  
              exitCode = GitCommandLineUtils.execute(clPush, stdout, stderr);
              if (exitCode != 0) {
                  return new UntagScmResult(clPush.toString(), "The git-push command failed.", stderr.getOutput(), false);
              }
          }
  
          return new UntagScmResult(clTag.toString());
      }
  
      // ----------------------------------------------------------------------
      //
      // ----------------------------------------------------------------------
  
      public static Commandline createCommandLine(
              GitScmProviderRepository repository, File workingDirectory, String tag) {
          Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(workingDirectory, "tag");
  
          cl.createArg().setValue("-d");
          cl.createArg().setValue(tag);
  
          return cl;
      }
  
      public static Commandline createPushCommandLine(
              GitScmProviderRepository repository, ScmFileSet fileSet, String tag) {
          Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(fileSet.getBasedir(), "push");
  
          cl.createArg().setValue("--delete");
          cl.createArg().setValue(repository.getPushUrl());
          cl.createArg().setValue("refs/tags/" + tag);
  
          return cl;
      }
  }