/*
    * 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.impl;
  
  import java.nio.file.Path;
  import java.util.*;
  
  import org.apache.maven.RepositoryUtils;
  import org.apache.maven.api.*;
  import org.apache.maven.api.annotations.Nonnull;
  import org.apache.maven.api.annotations.Nullable;
  import org.apache.maven.api.model.DependencyManagement;
  import org.apache.maven.api.model.Model;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.artifact.ProjectArtifact;
  import org.eclipse.aether.util.artifact.ArtifactIdUtils;
  
  import static org.apache.maven.internal.impl.Utils.nonNull;
  
  public class DefaultProject implements Project {
  
      private final InternalMavenSession session;
      private final MavenProject project;
      private final Packaging packaging;
  
      public DefaultProject(InternalMavenSession session, MavenProject project) {
          this.session = session;
          this.project = project;
          ClassLoader ttcl = Thread.currentThread().getContextClassLoader();
          try {
              Thread.currentThread().setContextClassLoader(project.getClassRealm());
              this.packaging = session.requirePackaging(project.getPackaging());
          } finally {
              Thread.currentThread().setContextClassLoader(ttcl);
          }
      }
  
      public InternalMavenSession getSession() {
          return session;
      }
  
      public MavenProject getProject() {
          return project;
      }
  
      @Nonnull
      @Override
      public String getGroupId() {
          return project.getGroupId();
      }
  
      @Nonnull
      @Override
      public String getArtifactId() {
          return project.getArtifactId();
      }
  
      @Nonnull
      @Override
      public String getVersion() {
          return project.getVersion();
      }
  
      @Nonnull
      @Override
      public List<Artifact> getArtifacts() {
          org.eclipse.aether.artifact.Artifact pomArtifact = RepositoryUtils.toArtifact(new ProjectArtifact(project));
          org.eclipse.aether.artifact.Artifact projectArtifact = RepositoryUtils.toArtifact(project.getArtifact());
  
          ArrayList<Artifact> result = new ArrayList<>(2);
          result.add(session.getArtifact(pomArtifact));
          if (!ArtifactIdUtils.equalsVersionlessId(pomArtifact, projectArtifact)) {
              result.add(session.getArtifact(projectArtifact));
          }
          return Collections.unmodifiableList(result);
      }
  
      @Nonnull
      @Override
      public Packaging getPackaging() {
          return packaging;
      }
  
     @Nonnull
     @Override
     public Model getModel() {
         return project.getModel().getDelegate();
     }
 
     @Nonnull
     @Override
     public Path getPomPath() {
         return nonNull(project.getFile(), "pomPath").toPath();
     }
 
     @Override
     public Path getBasedir() {
         return nonNull(project.getBasedir(), "basedir").toPath();
     }
 
     @Nonnull
     @Override
     public List<DependencyCoordinate> getDependencies() {
         return new MappedList<>(getModel().getDependencies(), this::toDependency);
     }
 
     @Nonnull
     @Override
     public List<DependencyCoordinate> getManagedDependencies() {
         DependencyManagement dependencyManagement = getModel().getDependencyManagement();
         if (dependencyManagement != null) {
             return new MappedList<>(dependencyManagement.getDependencies(), this::toDependency);
         }
         return Collections.emptyList();
     }
 
     @Override
     public boolean isTopProject() {
         return getBasedir().equals(getSession().getTopDirectory());
     }
 
     @Override
     public boolean isRootProject() {
         return getBasedir().equals(getRootDirectory());
     }
 
     @Override
     public Path getRootDirectory() {
         return project.getRootDirectory();
     }
 
     @Override
     public Optional<Project> getParent() {
         MavenProject parent = project.getParent();
         return parent != null ? Optional.of(session.getProject(parent)) : Optional.empty();
     }
 
     @Nonnull
     private DependencyCoordinate toDependency(org.apache.maven.api.model.Dependency dependency) {
         return new DependencyCoordinate() {
             @Override
             public String getGroupId() {
                 return dependency.getGroupId();
             }
 
             @Override
             public String getArtifactId() {
                 return dependency.getArtifactId();
             }
 
             @Override
             public String getClassifier() {
                 return dependency.getClassifier();
             }
 
             @Override
             public VersionConstraint getVersion() {
                 return session.parseVersionConstraint(dependency.getVersion());
             }
 
             @Override
             public String getExtension() {
                 return getType().getExtension();
             }
 
             @Override
             public Type getType() {
                 String type = dependency.getType();
                 return session.requireType(type);
             }
 
             @Nonnull
             @Override
             public DependencyScope getScope() {
                 String scope = dependency.getScope() != null ? dependency.getScope() : "";
                 return session.requireDependencyScope(scope);
             }
 
             @Override
             public Boolean getOptional() {
                 return dependency.isOptional();
             }
 
             @Nonnull
             @Override
             public Collection<Exclusion> getExclusions() {
                 return new MappedCollection<>(dependency.getExclusions(), this::toExclusion);
             }
 
             private Exclusion toExclusion(org.apache.maven.api.model.Exclusion exclusion) {
                 return new Exclusion() {
                     @Nullable
                     @Override
                     public String getGroupId() {
                         return exclusion.getGroupId();
                     }
 
                     @Nullable
                     @Override
                     public String getArtifactId() {
                         return exclusion.getArtifactId();
                     }
                 };
             }
         };
     }
 }