/*
    * 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.plugins.site.descriptor;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.Writer;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.metadata.AbstractArtifactMetadata;
  import org.apache.maven.artifact.metadata.ArtifactMetadata;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.repository.metadata.RepositoryMetadataStoreException;
  import org.apache.maven.doxia.site.SiteModel;
  import org.apache.maven.doxia.site.io.xpp3.SiteXpp3Writer;
  import org.codehaus.plexus.util.xml.XmlStreamWriter;
  
  /**
   * Attach a POM to an artifact.
   *
   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
   *
   */
  public class SiteDescriptorArtifactMetadata extends AbstractArtifactMetadata {
      private final SiteModel siteModel;
  
      private final File file;
  
      public SiteDescriptorArtifactMetadata(Artifact artifact, SiteModel siteModel, File file) {
          super(artifact);
  
          this.file = file;
          this.siteModel = siteModel;
      }
  
      @Override
      public String getRemoteFilename() {
          return getFilename();
      }
  
      @Override
      public String getLocalFilename(ArtifactRepository repository) {
          return getFilename();
      }
  
      private String getFilename() {
          return getArtifactId() + "-" + artifact.getVersion() + "-" + file.getName();
      }
  
      @Override
      public void storeInLocalRepository(ArtifactRepository localRepository, ArtifactRepository remoteRepository)
              throws RepositoryMetadataStoreException {
          File destination = new File(
                  localRepository.getBasedir(), localRepository.pathOfLocalRepositoryMetadata(this, remoteRepository));
  
          if (!destination.getParentFile().mkdirs()) {
              throw new RepositoryMetadataStoreException(
                      "Could not create artifact directory " + destination + " in local repository");
          }
  
          try (Writer writer = new XmlStreamWriter(destination)) {
              new SiteXpp3Writer().write(writer, siteModel);
          } catch (IOException e) {
              throw new RepositoryMetadataStoreException("Error saving in local repository", e);
          }
      }
  
      @Override
      public String toString() {
          return "site descriptor for " + artifact.getArtifactId() + " " + artifact.getVersion() + " " + file.getName();
      }
  
      @Override
      public boolean storedInArtifactVersionDirectory() {
          return true;
      }
  
      @Override
      public String getBaseVersion() {
          return artifact.getBaseVersion();
      }
  
      @Override
     public Object getKey() {
         return "site descriptor " + artifact.getGroupId() + ":" + artifact.getArtifactId() + " " + file.getName();
     }
 
     @Override
     public void merge(ArtifactMetadata metadata) {
         SiteDescriptorArtifactMetadata m = (SiteDescriptorArtifactMetadata) metadata;
         if (!m.file.equals(file)) {
             throw new IllegalStateException("Cannot add two different pieces of metadata for: " + getKey());
         }
     }
 
     @Override
     public void merge(org.apache.maven.repository.legacy.metadata.ArtifactMetadata metadata) {
         // FIXME what todo here ?
     }
 }