package org.apache.maven.plugins.assembly.artifact;
   
   /*
    * 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 javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.plugins.assembly.AssemblerConfigurationSource;
  import org.apache.maven.plugins.assembly.archive.ArchiveCreationException;
  import org.apache.maven.plugins.assembly.archive.phase.ModuleSetAssemblyPhase;
  import org.apache.maven.plugins.assembly.model.Assembly;
  import org.apache.maven.plugins.assembly.model.DependencySet;
  import org.apache.maven.plugins.assembly.model.ModuleBinaries;
  import org.apache.maven.plugins.assembly.model.ModuleSet;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.repository.RepositorySystem;
  import org.codehaus.plexus.util.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * @author jdcasey
   *
   */
  @Singleton
  @Named
  public class DefaultDependencyResolver implements DependencyResolver
  {
      private static final Logger LOGGER = LoggerFactory.getLogger( DefaultDependencyResolver.class );
  
      private final RepositorySystem resolver;
  
      @Inject
      public DefaultDependencyResolver( RepositorySystem resolver )
      {
          this.resolver = requireNonNull( resolver );
      }
  
      @Override
      public Map<DependencySet, Set<Artifact>> resolveDependencySets( final Assembly assembly, ModuleSet moduleSet,
                                                                      final AssemblerConfigurationSource configSource,
                                                                      List<DependencySet> dependencySets )
          throws DependencyResolutionException
      {
          Map<DependencySet, Set<Artifact>> result = new LinkedHashMap<>();
  
          for ( DependencySet dependencySet : dependencySets )
          {
  
              final MavenProject currentProject = configSource.getProject();
  
              final ResolutionManagementInfo info = new ResolutionManagementInfo();
              updateDependencySetResolutionRequirements( dependencySet, info, currentProject );
              updateModuleSetResolutionRequirements( moduleSet, dependencySet, info, configSource );
  
              result.put( dependencySet, info.getArtifacts() );
  
          }
          return result;
      }
  
      @Override
      public Map<DependencySet, Set<Artifact>> resolveDependencySets( final Assembly assembly,
                                                                      final AssemblerConfigurationSource configSource,
                                                                      List<DependencySet> dependencySets )
          throws DependencyResolutionException
      {
          Map<DependencySet, Set<Artifact>> result = new LinkedHashMap<>();
  
          for ( DependencySet dependencySet : dependencySets )
          {
  
              final MavenProject currentProject = configSource.getProject();
 
             final ResolutionManagementInfo info = new ResolutionManagementInfo();
             updateDependencySetResolutionRequirements( dependencySet, info, currentProject );
 
             result.put( dependencySet, info.getArtifacts() );
 
         }
         return result;
     }
 
     void updateModuleSetResolutionRequirements( ModuleSet set, DependencySet dependencySet,
                                                 final ResolutionManagementInfo requirements,
                                                 final AssemblerConfigurationSource configSource )
         throws DependencyResolutionException
     {
         final ModuleBinaries binaries = set.getBinaries();
         if ( binaries != null )
         {
             Set<MavenProject> projects;
             try
             {
                 projects = ModuleSetAssemblyPhase.getModuleProjects( set, configSource, LOGGER );
             }
             catch ( final ArchiveCreationException e )
             {
                 throw new DependencyResolutionException( "Error determining project-set for moduleSet with binaries.",
                                                          e );
             }
 
             for ( final MavenProject p : projects )
             {
                 if ( p.getArtifact() == null )
                 {
                     // TODO: such a call in MavenMetadataSource too - packaging not really the intention of type
                     final Artifact artifact =
                         resolver.createArtifact( p.getGroupId(), p.getArtifactId(), p.getVersion(), p.getPackaging() );
                     p.setArtifact( artifact );
                 }
             }
 
             if ( binaries.isIncludeDependencies() )
             {
                 updateDependencySetResolutionRequirements( dependencySet, requirements,
                                                            projects.toArray( new MavenProject[0] ) );
             }
         }
     }
 
     void updateDependencySetResolutionRequirements( final DependencySet set,
                                                     final ResolutionManagementInfo requirements,
                                                     final MavenProject... projects )
         throws DependencyResolutionException
     {
         for ( final MavenProject project : projects )
         {
             if ( project == null )
             {
                 continue;
             }
 
             Set<Artifact> dependencyArtifacts = null;
             if ( set.isUseTransitiveDependencies() )
             {
                 dependencyArtifacts = project.getArtifacts();
             }
             else
             {
                 dependencyArtifacts = project.getDependencyArtifacts();
             }
 
             requirements.addArtifacts( dependencyArtifacts );
             LOGGER.debug( "Dependencies for project: " + project.getId() + " are:\n" + StringUtils.join(
                 dependencyArtifacts.iterator(), "\n" ) );
         }
     }
 
 }