/*
    * 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.supplier;
  
  import java.util.HashMap;
  import java.util.LinkedHashMap;
  import java.util.Map;
  
  import org.eclipse.aether.RepositorySystem;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.generator.gnupg.GnupgSignatureArtifactGeneratorFactory;
  import org.eclipse.aether.generator.gnupg.loaders.GpgAgentPasswordLoader;
  import org.eclipse.aether.generator.gnupg.loaders.GpgConfLoader;
  import org.eclipse.aether.generator.gnupg.loaders.GpgEnvLoader;
  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
  import org.eclipse.aether.spi.artifact.decorator.ArtifactDecorator;
  import org.eclipse.aether.spi.artifact.decorator.ArtifactDecoratorFactory;
  import org.eclipse.aether.spi.artifact.generator.ArtifactGeneratorFactory;
  import org.eclipse.aether.spi.connector.transport.TransporterFactory;
  import org.eclipse.aether.supplier.RepositorySystemSupplier;
  import org.eclipse.aether.transport.jdk.JdkTransporterFactory;
  import org.eclipse.aether.transport.jetty.JettyTransporterFactory;
  
  /**
   * A factory for repository system instances that employs Maven Artifact Resolver's provided supplier.
   */
  public class SupplierRepositorySystemFactory {
      public static RepositorySystem newRepositorySystem() {
          return new RepositorySystemSupplier() {
              @Override
              protected Map<String, ArtifactGeneratorFactory> createArtifactGeneratorFactories() {
                  Map<String, ArtifactGeneratorFactory> result = super.createArtifactGeneratorFactories();
                  result.put(
                          GnupgSignatureArtifactGeneratorFactory.NAME,
                          new GnupgSignatureArtifactGeneratorFactory(
                                  getArtifactPredicateFactory(), getGnupgSignatureArtifactGeneratorFactoryLoaders()));
                  return result;
              }
  
              private Map<String, GnupgSignatureArtifactGeneratorFactory.Loader>
                      getGnupgSignatureArtifactGeneratorFactoryLoaders() {
                  // order matters
                  LinkedHashMap<String, GnupgSignatureArtifactGeneratorFactory.Loader> loaders = new LinkedHashMap<>();
                  loaders.put(GpgEnvLoader.NAME, new GpgEnvLoader());
                  loaders.put(GpgConfLoader.NAME, new GpgConfLoader());
                  loaders.put(GpgAgentPasswordLoader.NAME, new GpgAgentPasswordLoader());
                  return loaders;
              }
  
              @Override
              protected Map<String, ArtifactDecoratorFactory> createArtifactDecoratorFactories() {
                  Map<String, ArtifactDecoratorFactory> result = super.createArtifactDecoratorFactories();
                  result.put("color", new ArtifactDecoratorFactory() {
                      @Override
                      public ArtifactDecorator newInstance(RepositorySystemSession session) {
                          return new ArtifactDecorator() {
                              @Override
                              public Artifact decorateArtifact(ArtifactDescriptorResult artifactDescriptorResult) {
                                  Map<String, String> properties = new HashMap<>(
                                          artifactDescriptorResult.getArtifact().getProperties());
                                  properties.put("color", "red");
                                  return artifactDescriptorResult.getArtifact().setProperties(properties);
                              }
                          };
                      }
  
                      @Override
                      public float getPriority() {
                          return 0;
                      }
                  });
                  return result;
              }
  
              @Override
              protected Map<String, TransporterFactory> createTransporterFactories() {
                  Map<String, TransporterFactory> result = super.createTransporterFactories();
                  result.put(
                          JdkTransporterFactory.NAME,
                          new JdkTransporterFactory(getChecksumExtractor(), getPathProcessor()));
                  result.put(
                          JettyTransporterFactory.NAME,
                         new JettyTransporterFactory(getChecksumExtractor(), getPathProcessor()));
                 return result;
             }
         }.get();
     }
 }