/*
    * 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.lifecycle.internal.stub;
  
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.lifecycle.internal.GoalTask;
  import org.apache.maven.lifecycle.internal.LifecycleTask;
  import org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator;
  import org.apache.maven.lifecycle.internal.TaskSegment;
  import org.apache.maven.plugin.InvalidPluginDescriptorException;
  import org.apache.maven.plugin.MojoNotFoundException;
  import org.apache.maven.plugin.PluginDescriptorParsingException;
  import org.apache.maven.plugin.PluginNotFoundException;
  import org.apache.maven.plugin.PluginResolutionException;
  import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
  import org.apache.maven.plugin.version.PluginVersionResolutionException;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author Kristian Rosenvold
   */
  public class LifecycleTaskSegmentCalculatorStub
      extends DefaultLifecycleTaskSegmentCalculator
  {
      public static final String clean = "clean";
  
      public static final String aggr = "aggr";
  
      public static final String install = "install";
  
  
      public List<TaskSegment> calculateTaskSegments( MavenSession session, List<String> tasks )
          throws PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
          MojoNotFoundException, NoPluginFoundForPrefixException, InvalidPluginDescriptorException,
          PluginVersionResolutionException
      {
          List<TaskSegment> taskSegments = new ArrayList<>( tasks.size() );
  
          TaskSegment currentSegment = null;
  
          for ( String task : tasks )
          {
              if ( aggr.equals( task ) )
              {
                  boolean aggregating = true;
  
                  if ( currentSegment == null || currentSegment.isAggregating() != aggregating )
                  {
                      currentSegment = new TaskSegment( aggregating );
                      taskSegments.add( currentSegment );
                  }
  
                  currentSegment.getTasks().add( new GoalTask( task ) );
              }
              else
              {
                  // lifecycle phase
                  if ( currentSegment == null || currentSegment.isAggregating() )
                  {
                      currentSegment = new TaskSegment( false );
                      taskSegments.add( currentSegment );
                  }
                  currentSegment.getTasks().add( new LifecycleTask( task ) );
              }
          }
  
          return taskSegments;
      }
  
      public boolean requiresProject( MavenSession session )
      {
          return true;
      }
  }