/*
    * 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.internal.transformation.impl;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import java.nio.file.Path;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import java.util.stream.Collectors;
  
  import org.apache.maven.api.model.Dependency;
  import org.apache.maven.api.model.DependencyManagement;
  import org.apache.maven.api.model.DistributionManagement;
  import org.apache.maven.api.model.Model;
  import org.apache.maven.api.model.ModelBase;
  import org.apache.maven.api.model.Profile;
  import org.apache.maven.api.model.Repository;
  import org.apache.maven.model.building.DefaultModelBuilder;
  import org.apache.maven.model.building.DefaultModelBuilderFactory;
  import org.apache.maven.model.building.DefaultModelBuildingRequest;
  import org.apache.maven.model.building.ModelBuildingException;
  import org.apache.maven.model.building.ModelBuildingRequest;
  import org.apache.maven.model.building.ModelBuildingResult;
  import org.apache.maven.model.building.ModelProblemCollector;
  import org.apache.maven.model.building.ModelProcessor;
  import org.apache.maven.model.composition.DependencyManagementImporter;
  import org.apache.maven.model.inheritance.InheritanceAssembler;
  import org.apache.maven.model.interpolation.ModelInterpolator;
  import org.apache.maven.model.management.DependencyManagementInjector;
  import org.apache.maven.model.management.PluginManagementInjector;
  import org.apache.maven.model.normalization.ModelNormalizer;
  import org.apache.maven.model.path.ModelPathTranslator;
  import org.apache.maven.model.path.ModelUrlNormalizer;
  import org.apache.maven.model.plugin.LifecycleBindingsInjector;
  import org.apache.maven.model.plugin.PluginConfigurationExpander;
  import org.apache.maven.model.plugin.ReportConfigurationExpander;
  import org.apache.maven.model.profile.DefaultProfileSelector;
  import org.apache.maven.model.profile.ProfileActivationContext;
  import org.apache.maven.model.profile.ProfileInjector;
  import org.apache.maven.model.profile.ProfileSelector;
  import org.apache.maven.model.superpom.SuperPomProvider;
  import org.apache.maven.model.v4.MavenModelVersion;
  import org.apache.maven.model.validation.ModelValidator;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.ProjectBuildingRequest;
  import org.apache.maven.project.ProjectModelResolver;
  import org.apache.maven.repository.internal.ModelCacheFactory;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
  import org.eclipse.aether.RepositorySystem;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.RequestTrace;
  import org.eclipse.aether.impl.RemoteRepositoryManager;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  @Named
  class DefaultConsumerPomBuilder implements ConsumerPomBuilder {
      private static final Logger LOGGER = LoggerFactory.getLogger(DefaultConsumerPomBuilder.class);
  
      private static final String BOM_PACKAGING = "bom";
  
      public static final String POM_PACKAGING = "pom";
  
      @Inject
      PlexusContainer container;
  
      @Inject
      ModelCacheFactory modelCacheFactory;
  
      public Model build(RepositorySystemSession session, MavenProject project, Path src)
              throws ModelBuildingException, ComponentLookupException {
          Model model = project.getModel().getDelegate();
          String packaging = model.getPackaging();
          String originalPackaging = project.getOriginalModel().getPackaging();
          if (POM_PACKAGING.equals(packaging) && !BOM_PACKAGING.equals(originalPackaging)) {
              return buildPom(session, project, src);
          } else {
             return buildNonPom(session, project, src);
         }
     }
 
     protected Model buildPom(RepositorySystemSession session, MavenProject project, Path src)
             throws ModelBuildingException, ComponentLookupException {
         ModelBuildingResult result = buildModel(session, project, src);
         Model model = result.getRawModel().getDelegate();
         return transform(model, project);
     }
 
     protected Model buildNonPom(RepositorySystemSession session, MavenProject project, Path src)
             throws ModelBuildingException, ComponentLookupException {
         ModelBuildingResult result = buildModel(session, project, src);
         Model model = result.getEffectiveModel().getDelegate();
         return transform(model, project);
     }
 
     private ModelBuildingResult buildModel(RepositorySystemSession session, MavenProject project, Path src)
             throws ModelBuildingException, ComponentLookupException {
         ProfileSelector customSelector = new DefaultProfileSelector() {
             @Override
             public List<Profile> getActiveProfilesV4(
                     Collection<Profile> profiles, ProfileActivationContext context, ModelProblemCollector problems) {
                 return new ArrayList<>();
             }
         };
         DefaultModelBuilder modelBuilder = new DefaultModelBuilderFactory()
                 .setProfileSelector(customSelector)
                 // apply currently active ModelProcessor etc. to support extensions like jgitver
                 .setProfileInjector(lookup(ProfileInjector.class))
                 .setInheritanceAssembler(lookup(InheritanceAssembler.class))
                 .setDependencyManagementImporter(lookup(DependencyManagementImporter.class))
                 .setDependencyManagementInjector(lookup(DependencyManagementInjector.class))
                 .setLifecycleBindingsInjector(lookup(LifecycleBindingsInjector.class))
                 .setModelInterpolator(lookup(ModelInterpolator.class))
                 .setModelNormalizer(lookup(ModelNormalizer.class))
                 .setModelPathTranslator(lookup(ModelPathTranslator.class))
                 .setModelProcessor(lookup(ModelProcessor.class))
                 .setModelUrlNormalizer(lookup(ModelUrlNormalizer.class))
                 .setModelValidator(lookup(ModelValidator.class))
                 .setPluginConfigurationExpander(lookup(PluginConfigurationExpander.class))
                 .setPluginManagementInjector(lookup(PluginManagementInjector.class))
                 .setReportConfigurationExpander(lookup(ReportConfigurationExpander.class))
                 .setSuperPomProvider(lookup(SuperPomProvider.class))
                 .newInstance();
         DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
         try {
             request.setRootDirectory(project.getRootDirectory());
         } catch (IllegalStateException e) {
             // ignore if we don't have a root directory
         }
         request.setPomFile(src.toFile());
         request.setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);
         request.setLocationTracking(false);
         request.setModelResolver(new ProjectModelResolver(
                 session,
                 new RequestTrace(null),
                 lookup(RepositorySystem.class),
                 lookup(RemoteRepositoryManager.class),
                 project.getRemoteProjectRepositories(),
                 ProjectBuildingRequest.RepositoryMerging.POM_DOMINANT,
                 null));
         request.setTransformerContextBuilder(modelBuilder.newTransformerContextBuilder());
         request.setSystemProperties(toProperties(session.getSystemProperties()));
         request.setUserProperties(toProperties(session.getUserProperties()));
         request.setModelCache(modelCacheFactory.createCache(session));
         return modelBuilder.build(request);
     }
 
     private Properties toProperties(Map<String, String> map) {
         Properties props = new Properties();
         props.putAll(map);
         return props;
     }
 
     private <T> T lookup(Class<T> clazz) throws ComponentLookupException {
         return container.lookup(clazz);
     }
 
     static Model transform(Model model, MavenProject project) {
         String packaging = model.getPackaging();
         if (POM_PACKAGING.equals(packaging)) {
             // raw to consumer transform
             model = model.withRoot(false).withModules(null);
             if (model.getParent() != null) {
                 model = model.withParent(model.getParent().withRelativePath(null));
             }
 
             if (!model.isPreserveModelVersion()) {
                 model = model.withPreserveModelVersion(false);
                 String modelVersion = new MavenModelVersion().getModelVersion(model);
                 model = model.withModelVersion(modelVersion);
             }
         } else if (BOM_PACKAGING.equals(packaging)) {
             DependencyManagement dependencyManagement =
                     project.getOriginalModel().getDependencyManagement().getDelegate();
             List<Dependency> dependencies = new ArrayList<>();
             String version = model.getVersion();
 
             dependencyManagement
                     .getDependencies()
                     .forEach((dependency) -> dependencies.add(dependency.withVersion(version)));
             Model.Builder builder = prune(
                     Model.newBuilder(model, true)
                             .preserveModelVersion(false)
                             .root(false)
                             .parent(null)
                             .dependencyManagement(dependencyManagement.withDependencies(dependencies))
                             .build(null),
                     model);
             builder.packaging(POM_PACKAGING);
             builder.profiles(model.getProfiles().stream()
                     .map(p -> prune(Profile.newBuilder(p, true), p).build())
                     .collect(Collectors.toList()));
 
             model = builder.build();
             String modelVersion = new MavenModelVersion().getModelVersion(model);
             model = model.withModelVersion(modelVersion);
         } else {
             Model.Builder builder = prune(
                     Model.newBuilder(model, true)
                             .preserveModelVersion(false)
                             .root(false)
                             .parent(null)
                             .build(null),
                     model);
             builder.profiles(model.getProfiles().stream()
                     .map(p -> prune(Profile.newBuilder(p, true), p).build())
                     .collect(Collectors.toList()));
             model = builder.build();
             String modelVersion = new MavenModelVersion().getModelVersion(model);
             model = model.withModelVersion(modelVersion);
         }
         return model;
     }
 
     private static <T extends ModelBase.Builder> T prune(T builder, ModelBase model) {
         builder.properties(null).reporting(null);
         if (model.getDistributionManagement() != null
                 && model.getDistributionManagement().getRelocation() != null) {
             // keep relocation only
             builder.distributionManagement(DistributionManagement.newBuilder()
                     .relocation(model.getDistributionManagement().getRelocation())
                     .build());
         }
         // only keep repositories other than 'central'
         builder.pluginRepositories(pruneRepositories(model.getPluginRepositories()));
         builder.repositories(pruneRepositories(model.getRepositories()));
         return builder;
     }
 
     private static List<Repository> pruneRepositories(List<Repository> repositories) {
         return repositories.stream()
                 .filter(r -> !org.apache.maven.api.Repository.CENTRAL_ID.equals(r.getId()))
                 .collect(Collectors.toList());
     }
 }