/*
    * 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.eclipse.aether.internal.impl.offline;
  
  import java.util.Collection;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.impl.OfflineController;
  import org.eclipse.aether.internal.impl.Utils;
  import org.eclipse.aether.repository.RemoteRepository;
  import org.eclipse.aether.spi.connector.ArtifactDownload;
  import org.eclipse.aether.spi.connector.ArtifactUpload;
  import org.eclipse.aether.spi.connector.MetadataDownload;
  import org.eclipse.aether.spi.connector.MetadataUpload;
  import org.eclipse.aether.spi.connector.RepositoryConnector;
  import org.eclipse.aether.transfer.ArtifactTransferException;
  import org.eclipse.aether.transfer.MetadataTransferException;
  import org.eclipse.aether.transfer.RepositoryOfflineException;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * Offline connector, that prevents ANY remote access in case session is offline.
   *
   * @since 2.0.8
   */
  public final class OfflineRepositoryConnector implements RepositoryConnector {
      private final RepositorySystemSession session;
      private final RemoteRepository remoteRepository;
      private final OfflineController offlineController;
      private final RepositoryConnector delegate;
  
      public OfflineRepositoryConnector(
              RepositorySystemSession session,
              RemoteRepository remoteRepository,
              OfflineController offlineController,
              RepositoryConnector delegate) {
          this.session = requireNonNull(session);
          this.remoteRepository = requireNonNull(remoteRepository);
          this.offlineController = requireNonNull(offlineController);
          this.delegate = requireNonNull(delegate);
      }
  
      @Override
      public void close() {
          delegate.close();
      }
  
      @Override
      public void get(
              Collection<? extends ArtifactDownload> artifactDownloads,
              Collection<? extends MetadataDownload> metadataDownloads) {
          try {
              Utils.checkOffline(session, offlineController, remoteRepository);
          } catch (RepositoryOfflineException e) {
              if (artifactDownloads != null && !artifactDownloads.isEmpty()) {
                  artifactDownloads.forEach(
                          d -> d.setException(new ArtifactTransferException(d.getArtifact(), remoteRepository, e)));
              }
              if (metadataDownloads != null && !metadataDownloads.isEmpty()) {
                  metadataDownloads.forEach(
                          d -> d.setException(new MetadataTransferException(d.getMetadata(), remoteRepository, e)));
              }
              return;
          }
          delegate.get(artifactDownloads, metadataDownloads);
      }
  
      @Override
      public void put(
              Collection<? extends ArtifactUpload> artifactUploads,
              Collection<? extends MetadataUpload> metadataUploads) {
          try {
              Utils.checkOffline(session, offlineController, remoteRepository);
          } catch (RepositoryOfflineException e) {
              if (artifactUploads != null && !artifactUploads.isEmpty()) {
                  artifactUploads.forEach(
                          d -> d.setException(new ArtifactTransferException(d.getArtifact(), remoteRepository, e)));
              }
              if (metadataUploads != null && !metadataUploads.isEmpty()) {
                  metadataUploads.forEach(
                          d -> d.setException(new MetadataTransferException(d.getMetadata(), remoteRepository, e)));
              }
             return;
         }
         delegate.put(artifactUploads, metadataUploads);
     }
 
     @Override
     public String toString() {
         return OfflinePipelineRepositoryConnectorFactory.NAME + "( " + delegate.toString() + " )";
     }
 }