/*
    * 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.plugin.internal;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import org.apache.maven.plugin.PluginValidationManager;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.graph.Dependency;
  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
  
  /**
   * Detects Maven2 plugins.
   *
   * @since 3.9.2
   */
  @Singleton
  @Named
  class Maven2DependenciesValidator extends AbstractMavenPluginDependenciesValidator {
  
      @Inject
      Maven2DependenciesValidator(PluginValidationManager pluginValidationManager) {
          super(pluginValidationManager);
      }
  
      @Override
      protected void doValidate(
              RepositorySystemSession session,
              Artifact pluginArtifact,
              ArtifactDescriptorResult artifactDescriptorResult) {
          Set<String> maven2Versions = artifactDescriptorResult.getDependencies().stream()
                  .map(Dependency::getArtifact)
                  .filter(d -> "org.apache.maven".equals(d.getGroupId()))
                  .filter(d -> !DefaultPluginValidationManager.EXPECTED_PROVIDED_SCOPE_EXCLUSIONS_GA.contains(
                          d.getGroupId() + ":" + d.getArtifactId()))
                  .map(Artifact::getVersion)
                  .filter(v -> v.startsWith("2."))
                  .collect(Collectors.toSet());
  
          if (!maven2Versions.isEmpty()) {
              pluginValidationManager.reportPluginValidationIssue(
                      PluginValidationManager.IssueLocality.EXTERNAL,
                      session,
                      pluginArtifact,
                      "Plugin is a Maven 2.x plugin, which will be not supported in Maven 4.x");
          }
      }
  }