/*
    * 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.resolver.examples;
  
  import org.apache.maven.resolver.examples.util.Booter;
  import org.apache.maven.resolver.examples.util.ReverseTreeRepositoryListener;
  import org.eclipse.aether.RepositorySystem;
  import org.eclipse.aether.RepositorySystemSession.CloseableSession;
  import org.eclipse.aether.RepositorySystemSession.SessionBuilder;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.artifact.DefaultArtifact;
  import org.eclipse.aether.collection.CollectRequest;
  import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
  import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
  import org.eclipse.aether.util.graph.transformer.ConflictResolver;
  import org.eclipse.aether.util.listener.ChainedRepositoryListener;
  
  /**
   * Example of building reverse dependency tree using custom {@link ReverseTreeRepositoryListener}.
   */
  public class ReverseDependencyTree {
  
      /**
       * Main.
       * @param args
       * @throws Exception
       */
      public static void main(String[] args) throws Exception {
          System.out.println("------------------------------------------------------------");
          System.out.println(ReverseDependencyTree.class.getSimpleName());
  
          try (RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args))) {
              SessionBuilder sessionBuilder = Booter.newRepositorySystemSession(system);
              try (CloseableSession session = sessionBuilder.build()) {
                  sessionBuilder.setRepositoryListener(new ChainedRepositoryListener(
                          session.getRepositoryListener(), new ReverseTreeRepositoryListener()));
              }
              sessionBuilder.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true);
              sessionBuilder.setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true);
              try (CloseableSession session = sessionBuilder.build()) {
                  Artifact artifact = new DefaultArtifact("org.apache.maven:maven-resolver-provider:3.6.1");
  
                  ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest();
                  descriptorRequest.setArtifact(artifact);
                  descriptorRequest.setRepositories(Booter.newRepositories(system, session));
                  ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest);
  
                  CollectRequest collectRequest = new CollectRequest();
                  collectRequest.setRequestContext("demo");
                  collectRequest.setRootArtifact(descriptorResult.getArtifact());
                  collectRequest.setDependencies(descriptorResult.getDependencies());
                  collectRequest.setManagedDependencies(descriptorResult.getManagedDependencies());
                  collectRequest.setRepositories(descriptorRequest.getRepositories());
  
                  system.collectDependencies(session, collectRequest);
  
                  // in this demo we are not interested in collect result,
                  // as all the "demo work" is done by installed ReverseTreeRepositoryListener
              }
          }
      }
  }