/*
    * 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.shared.release.phase;
  
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.io.IOException;
  import java.util.List;
  
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.shared.release.ReleaseExecutionException;
  import org.apache.maven.shared.release.ReleaseFailureException;
  import org.apache.maven.shared.release.ReleaseResult;
  import org.apache.maven.shared.release.config.ReleaseDescriptor;
  import org.apache.maven.shared.release.env.ReleaseEnvironment;
  import org.apache.maven.shared.release.util.ReleaseUtil;
  import org.codehaus.plexus.util.FileUtils;
  
  /**
   * @author Edwin Punzalan
   */
  @Singleton
  @Named("create-backup-poms")
  public class CreateBackupPomsPhase extends AbstractBackupPomsPhase implements ResourceGenerator {
      @Override
      public ReleaseResult execute(
              ReleaseDescriptor releaseDescriptor,
              ReleaseEnvironment releaseEnvironment,
              List<MavenProject> reactorProjects)
              throws ReleaseExecutionException, ReleaseFailureException {
          ReleaseResult result = new ReleaseResult();
  
          // remove previous backups, if any
          clean(reactorProjects);
  
          logInfo(result, "Creating pom.xml backup with " + BACKUP_SUFFIX + " suffix");
  
          for (MavenProject project : reactorProjects) {
              createPomBackup(project);
          }
  
          result.setResultCode(ReleaseResult.SUCCESS);
  
          return result;
      }
  
      @Override
      public ReleaseResult clean(List<MavenProject> reactorProjects) {
          ReleaseResult result = new ReleaseResult();
  
          for (MavenProject project : reactorProjects) {
              deletePomBackup(project);
          }
  
          result.setResultCode(ReleaseResult.SUCCESS);
  
          return result;
      }
  
      @Override
      public ReleaseResult simulate(
              ReleaseDescriptor releaseDescriptor,
              ReleaseEnvironment releaseEnvironment,
              List<MavenProject> reactorProjects)
              throws ReleaseExecutionException, ReleaseFailureException {
          return execute(releaseDescriptor, releaseEnvironment, reactorProjects);
      }
  
      private void createPomBackup(MavenProject project) throws ReleaseExecutionException {
          // delete any existing backup first
          deletePomBackup(project);
  
          try {
              FileUtils.copyFile(ReleaseUtil.getStandardPom(project), getPomBackup(project));
          } catch (IOException e) {
              throw new ReleaseExecutionException("Error creating backup POM: " + e.getMessage(), e);
          }
      }
  }