package org.apache.maven.shared.release;
   
   /*
    * 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 java.util.List;
  
  import org.apache.maven.plugin.logging.Log;
  import org.codehaus.plexus.util.StringUtils;
  
  import static org.apache.maven.shared.utils.logging.MessageUtils.buffer;
  
  /**
   * <p>DefaultReleaseManagerListener class.</p>
   *
   * @author Hervé Boutemy
   */
  public class DefaultReleaseManagerListener
      implements ReleaseManagerListener
  {
      private final Log log;
  
      private final boolean dryRun;
  
      private String goal;
  
      private List<String> phases;
  
      private int currentPhase;
  
      /**
       * <p>Constructor for DefaultReleaseManagerListener.</p>
       *
       * @param log a {@link org.apache.maven.plugin.logging.Log} object
       */
      public DefaultReleaseManagerListener( Log log )
      {
          this( log, false );
      }
  
      /**
       * <p>Constructor for DefaultReleaseManagerListener.</p>
       *
       * @param log a {@link org.apache.maven.plugin.logging.Log} object
       * @param dryRun a boolean
       */
      public DefaultReleaseManagerListener( Log log, boolean dryRun )
      {
          this.log = log;
          this.dryRun = dryRun;
      }
  
      private void nextPhase( String name )
      {
          currentPhase++;
          if ( !name.equals( phases.get( currentPhase ) ) )
          {
              log.warn( "inconsistent phase name: expected '" + phases.get( currentPhase ) + "' but got '" + name + "'" );
          }
      }
  
      public void goalStart( String goal, List<String> phases )
      {
          log.info( "starting " + buffer().strong( goal ) + " goal" + ( dryRun ? " in dry-run mode" : "" )
              + ", composed of " + phases.size() + " phases: " + StringUtils.join( phases.iterator(), ", " ) );
          currentPhase = -1;
          this.phases = phases;
          this.goal = goal;
      }
  
      public void phaseStart( String name )
      {
          if ( goal == null || ( ( currentPhase + 1 ) >= phases.size() ) )
          {
              // out of goal phase
              log.info( "phase " + buffer().strong( name ) + ( dryRun ? " (dry-run)" : "" ) );
              return;
          }
  
          nextPhase( name );
          log.info( buffer().strong( "[" + goal + ( dryRun ? " dry-run" : "" ) + "] " ).toString() + ( currentPhase + 1 )
              + "/" + phases.size() + " " + buffer().strong( name ) );
      }
 
     /**
      * <p>phaseEnd.</p>
      */
     public void phaseEnd()
     {
         // NOOP
     }
 
     public void phaseSkip( String name )
     {
         nextPhase( name );
     }
 
     /**
      * <p>goalEnd.</p>
      */
     public void goalEnd()
     {
         goal = null;
         phases = null;
     }
 
     public void error( String reason )
     {
         log.error( "error during phase " + ( currentPhase + 1 ) + "/" + phases.size() + " " + phases.get( currentPhase )
             + ": " + reason );
     }
 }