package org.apache.maven.internal.impl;
   
   /*
    * 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 java.nio.file.Path;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  import java.util.Optional;
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import org.apache.maven.RepositoryUtils;
  import org.apache.maven.SessionScoped;
  import org.apache.maven.api.Artifact;
  import org.apache.maven.api.Node;
  import org.apache.maven.api.Project;
  import org.apache.maven.api.RemoteRepository;
  import org.apache.maven.api.ResolutionScope;
  import org.apache.maven.api.Scope;
  import org.apache.maven.api.Session;
  import org.apache.maven.api.annotations.Nonnull;
  import org.apache.maven.api.services.ArtifactManager;
  import org.apache.maven.api.services.MavenException;
  import org.apache.maven.api.services.ProjectManager;
  import org.apache.maven.lifecycle.LifecycleExecutionException;
  import org.apache.maven.lifecycle.internal.LifecycleDependencyResolver;
  import org.apache.maven.project.MavenProject;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
  
  @Named
  @SessionScoped
  public class DefaultProjectManager implements ProjectManager
  {
  
      private final Session session;
      private final ArtifactManager artifactManager;
      private final PlexusContainer container;
  
      @Inject
      public DefaultProjectManager( Session session,
                                    ArtifactManager artifactManager,
                                    PlexusContainer container )
      {
          this.session = session;
          this.artifactManager = artifactManager;
          this.container = container;
      }
  
      @Nonnull
      @Override
      public Optional<Path> getPath( Project project )
      {
          // TODO: apiv4
          throw new UnsupportedOperationException( "Not implemented yet" );
      }
  
      @Nonnull
      @Override
      public Collection<Artifact> getAttachedArtifacts( Project project )
      {
          AbstractSession session = ( (DefaultProject ) project ).getSession();
          Collection<Artifact> attached = getMavenProject( project ).getAttachedArtifacts().stream()
                  .map( RepositoryUtils::toArtifact )
                  .map( session::getArtifact )
                  .collect( Collectors.toList() );
          return Collections.unmodifiableCollection( attached );
      }
  
      @Override
      public void attachArtifact( Project project, Artifact artifact, Path path )
      {
          getMavenProject( project ).addAttachedArtifact(
                  RepositoryUtils.toArtifact( ( ( DefaultProject ) project ).getSession().toArtifact( artifact ) ) );
          artifactManager.setPath( artifact, path );
      }
  
      @Override
     public List<String> getCompileSourceRoots( Project project )
     {
         List<String> roots = getMavenProject( project ).getCompileSourceRoots();
         return Collections.unmodifiableList( roots );
     }
 
     @Override
     public void addCompileSourceRoot( Project project, String sourceRoot )
     {
         List<String> roots = getMavenProject( project ).getCompileSourceRoots();
         roots.add( sourceRoot );
     }
 
     @Override
     public List<String> getTestCompileSourceRoots( Project project )
     {
         List<String> roots = getMavenProject( project ).getTestCompileSourceRoots();
         return Collections.unmodifiableList( roots );
     }
 
     @Override
     public void addTestCompileSourceRoot( Project project, String sourceRoot )
     {
         List<String> roots = getMavenProject( project ).getTestCompileSourceRoots();
         roots.add( sourceRoot );
     }
 
     @Override
     public List<RemoteRepository> getRepositories( Project project )
     {
         // TODO: apiv4
         throw new UnsupportedOperationException( "Not implemented yet" );
     }
 
     @Override
     public List<Artifact> getResolvedDependencies( Project project, ResolutionScope scope )
     {
         Collection<String> toResolve = toScopes( scope );
         try
         {
             LifecycleDependencyResolver lifecycleDependencyResolver =
                     container.lookup( LifecycleDependencyResolver.class );
             Set<org.apache.maven.artifact.Artifact> artifacts = lifecycleDependencyResolver.resolveProjectArtifacts(
                     getMavenProject( project ),
                     toResolve,
                     toResolve,
                     ( ( DefaultSession ) session ).getMavenSession(),
                     false,
                     Collections.emptySet()
             );
             return artifacts.stream()
                 .map( RepositoryUtils::toArtifact )
                 .map( ( ( DefaultSession ) session )::getArtifact )
                 .collect( Collectors.toList() );
         }
         catch ( LifecycleExecutionException | ComponentLookupException e )
         {
             throw new MavenException( "Unable to resolve project dependencies", e );
         }
     }
 
     @Override
     public Node getCollectedDependencies( Project project, ResolutionScope scope )
     {
         // TODO: apiv4
         throw new UnsupportedOperationException( "Not implemented yet" );
     }
 
     @Override
     public void setProperty( Project project, String key, String value )
     {
         getMavenProject( project ).getProperties().setProperty( key, value );
     }
 
     private MavenProject getMavenProject( Project project )
     {
         return ( ( DefaultProject ) project ).getProject();
     }
 
     private Collection<String> toScopes( ResolutionScope scope )
     {
         return scope.scopes().stream().map( Scope::id ).collect( Collectors.toList() );
     }
 
 }