/*
    * 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.repository.internal;
  
  import java.io.File;
  import java.util.Map;
  import java.util.Objects;
  
  import org.eclipse.aether.artifact.AbstractArtifact;
  import org.eclipse.aether.artifact.Artifact;
  
  /**
   * @author Benjamin Bentmann
   */
  public final class RelocatedArtifact extends AbstractArtifact {
  
      private final Artifact artifact;
  
      private final String groupId;
  
      private final String artifactId;
  
      private final String version;
  
      private final String message;
  
      RelocatedArtifact(Artifact artifact, String groupId, String artifactId, String version, String message) {
          this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
          // TODO Use StringUtils here
          this.groupId = (groupId != null && groupId.length() > 0) ? groupId : null;
          this.artifactId = (artifactId != null && artifactId.length() > 0) ? artifactId : null;
          this.version = (version != null && version.length() > 0) ? version : null;
          this.message = (message != null && message.length() > 0) ? message : null;
      }
  
      @Override
      public String getGroupId() {
          if (groupId != null) {
              return groupId;
          } else {
              return artifact.getGroupId();
          }
      }
  
      @Override
      public String getArtifactId() {
          if (artifactId != null) {
              return artifactId;
          } else {
              return artifact.getArtifactId();
          }
      }
  
      @Override
      public String getVersion() {
          if (version != null) {
              return version;
          } else {
              return artifact.getVersion();
          }
      }
  
      // Revise these three methods when MRESOLVER-233 is delivered
      @Override
      public Artifact setVersion(String version) {
          String current = getVersion();
          if (current.equals(version) || (version == null && current.length() <= 0)) {
              return this;
          }
          return new RelocatedArtifact(artifact, groupId, artifactId, version, message);
      }
  
      @Override
      public Artifact setFile(File file) {
          File current = getFile();
          if (Objects.equals(current, file)) {
              return this;
          }
          return new RelocatedArtifact(artifact.setFile(file), groupId, artifactId, version, message);
      }
  
      @Override
      public Artifact setProperties(Map<String, String> properties) {
         Map<String, String> current = getProperties();
         if (current.equals(properties) || (properties == null && current.isEmpty())) {
             return this;
         }
         return new RelocatedArtifact(artifact.setProperties(properties), groupId, artifactId, version, message);
     }
 
     @Override
     public String getClassifier() {
         return artifact.getClassifier();
     }
 
     @Override
     public String getExtension() {
         return artifact.getExtension();
     }
 
     @Override
     public File getFile() {
         return artifact.getFile();
     }
 
     @Override
     public String getProperty(String key, String defaultValue) {
         return artifact.getProperty(key, defaultValue);
     }
 
     @Override
     public Map<String, String> getProperties() {
         return artifact.getProperties();
     }
 
     public String getMessage() {
         return message;
     }
 }