/*
    * 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.transport.minio;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import java.util.Map;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.repository.RemoteRepository;
  import org.eclipse.aether.spi.connector.transport.Transporter;
  import org.eclipse.aether.spi.connector.transport.TransporterFactory;
  import org.eclipse.aether.transfer.NoTransporterException;
  import org.eclipse.aether.util.ConfigUtils;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * A transporter factory for repositories using the S3 API object storage using Minio.
   *
   * @since 2.0.2
   */
  @Named(MinioTransporterFactory.NAME)
  public final class MinioTransporterFactory implements TransporterFactory {
      public static final String NAME = "minio";
  
      private static final float DEFAULT_PRIORITY = 0.0f;
  
      private float priority = DEFAULT_PRIORITY;
  
      private final Map<String, ObjectNameMapperFactory> objectNameMapperFactories;
  
      @Inject
      public MinioTransporterFactory(Map<String, ObjectNameMapperFactory> objectNameMapperFactories) {
          this.objectNameMapperFactories = requireNonNull(objectNameMapperFactories, "objectNameMapperFactories");
      }
  
      @Override
      public float getPriority() {
          return priority;
      }
  
      public MinioTransporterFactory setPriority(float priority) {
          this.priority = priority;
          return this;
      }
  
      @Override
      public Transporter newInstance(RepositorySystemSession session, RemoteRepository repository)
              throws NoTransporterException {
          requireNonNull(session, "session cannot be null");
          requireNonNull(repository, "repository cannot be null");
  
          // this check is here only to support "minio+http" and "s3+http" protocols by default. But also when
          // raised priorities by user, allow to "overtake" plain HTTP repositories, if needed.
          RemoteRepository adjusted = repository;
          if ("minio+http".equalsIgnoreCase(repository.getProtocol())
                  || "minio+https".equalsIgnoreCase(repository.getProtocol())) {
              adjusted = new RemoteRepository.Builder(repository)
                      .setUrl(repository.getUrl().substring("minio+".length()))
                      .build();
          } else if ("s3+http".equalsIgnoreCase(repository.getProtocol())
                  || "s3+https".equalsIgnoreCase(repository.getProtocol())) {
              adjusted = new RemoteRepository.Builder(repository)
                      .setUrl(repository.getUrl().substring("s3+".length()))
                      .build();
          } else if (priority == DEFAULT_PRIORITY) {
              throw new NoTransporterException(
                      repository,
                      "To use Minio transport with plain HTTP/HTTPS repositories, increase the Minio transport priority");
          }
          String objectNameMapperConf = ConfigUtils.getString(
                  session,
                  MinioTransporterConfigurationKeys.DEFAULT_OBJECT_NAME_MAPPER,
                  MinioTransporterConfigurationKeys.CONFIG_PROP_OBJECT_NAME_MAPPER + "." + repository.getId(),
                  MinioTransporterConfigurationKeys.CONFIG_PROP_OBJECT_NAME_MAPPER);
          ObjectNameMapperFactory objectNameMapperFactory = objectNameMapperFactories.get(objectNameMapperConf);
          if (objectNameMapperFactory == null) {
              throw new IllegalArgumentException("Unknown object name mapper configured '" + objectNameMapperConf
                      + "' for repository " + repository.getId());
          }
          return new MinioTransporter(session, adjusted, objectNameMapperFactory);
     }
 }