/*
    * 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.generator.sigstore;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.util.Collection;
  
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.deployment.DeployRequest;
  import org.eclipse.aether.installation.InstallRequest;
  import org.eclipse.aether.spi.artifact.ArtifactPredicateFactory;
  import org.eclipse.aether.spi.artifact.generator.ArtifactGenerator;
  import org.eclipse.aether.spi.artifact.generator.ArtifactGeneratorFactory;
  import org.eclipse.aether.spi.io.PathProcessor;
  import org.eclipse.aether.util.ConfigUtils;
  
  @Singleton
  @Named(SigstoreSignatureArtifactGeneratorFactory.NAME)
  public final class SigstoreSignatureArtifactGeneratorFactory implements ArtifactGeneratorFactory {
  
      public static final String NAME = "sigstore";
  
      private final ArtifactPredicateFactory artifactPredicateFactory;
      private final PathProcessor pathProcessor;
  
      @Inject
      public SigstoreSignatureArtifactGeneratorFactory(
              ArtifactPredicateFactory artifactPredicateFactory, PathProcessor pathProcessor) {
          this.artifactPredicateFactory = artifactPredicateFactory;
          this.pathProcessor = pathProcessor;
      }
  
      @Override
      public ArtifactGenerator newInstance(RepositorySystemSession session, InstallRequest request) {
          return null; // nothing on install
      }
  
      @Override
      public ArtifactGenerator newInstance(RepositorySystemSession session, DeployRequest request) {
          return newInstance(session, request.getArtifacts()); // generate on deploy
      }
  
      private ArtifactGenerator newInstance(RepositorySystemSession session, Collection<Artifact> artifacts) {
          final boolean enabled = ConfigUtils.getBoolean(
                  session, SigstoreConfigurationKeys.DEFAULT_ENABLED, SigstoreConfigurationKeys.CONFIG_PROP_ENABLED);
          if (!enabled) {
              return null;
          }
          final boolean publicStaging = ConfigUtils.getBoolean(
                  session,
                  SigstoreConfigurationKeys.DEFAULT_PUBLIC_STAGING,
                  SigstoreConfigurationKeys.CONFIG_PROP_PUBLIC_STAGING);
  
          return new SigstoreSignatureArtifactGenerator(
                  pathProcessor, artifacts, artifactPredicateFactory.newInstance(session)::hasChecksums, publicStaging);
      }
  
      @Override
      public float getPriority() {
          return 150;
      }
  }