/*
    * 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.resolver.examples.guice;
  
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import com.google.inject.AbstractModule;
  import com.google.inject.Provides;
  import com.google.inject.name.Names;
  import org.apache.maven.model.building.DefaultModelBuilderFactory;
  import org.apache.maven.model.building.ModelBuilder;
  import org.apache.maven.repository.internal.DefaultArtifactDescriptorReader;
  import org.apache.maven.repository.internal.DefaultModelCacheFactory;
  import org.apache.maven.repository.internal.DefaultVersionRangeResolver;
  import org.apache.maven.repository.internal.DefaultVersionResolver;
  import org.apache.maven.repository.internal.ModelCacheFactory;
  import org.apache.maven.repository.internal.SnapshotMetadataGeneratorFactory;
  import org.apache.maven.repository.internal.VersionsMetadataGeneratorFactory;
  import org.eclipse.aether.connector.basic.BasicRepositoryConnectorFactory;
  import org.eclipse.aether.impl.ArtifactDescriptorReader;
  import org.eclipse.aether.impl.MetadataGeneratorFactory;
  import org.eclipse.aether.impl.VersionRangeResolver;
  import org.eclipse.aether.impl.VersionResolver;
  import org.eclipse.aether.impl.guice.AetherModule;
  import org.eclipse.aether.spi.connector.RepositoryConnectorFactory;
  import org.eclipse.aether.spi.connector.transport.TransporterFactory;
  import org.eclipse.aether.transport.file.FileTransporterFactory;
  import org.eclipse.aether.transport.http.ChecksumExtractor;
  import org.eclipse.aether.transport.http.HttpTransporterFactory;
  
  /**
   * Guice module for Demo Resolver snippets.
   *
   * Here, we assemble "complete" module by using {@link AetherModule} (see it's Javadoc) and adding bits from
   * Maven itself (binding those components that completes repository system).
   */
  class DemoResolverModule extends AbstractModule {
  
      @Override
      protected void configure() {
          // NOTE: see org.eclipse.aether.impl.guice.AetherModule Javadoc:
          // AetherModule alone is "ready-made" but incomplete. To have a complete resolver, we
          // actually need to bind the missing components making module complete.
          install(new AetherModule());
  
          // make module "complete" by binding things not bound by AetherModule
          bind(ArtifactDescriptorReader.class)
                  .to(DefaultArtifactDescriptorReader.class)
                  .in(Singleton.class);
          bind(VersionResolver.class).to(DefaultVersionResolver.class).in(Singleton.class);
          bind(VersionRangeResolver.class).to(DefaultVersionRangeResolver.class).in(Singleton.class);
          bind(MetadataGeneratorFactory.class)
                  .annotatedWith(Names.named("snapshot"))
                  .to(SnapshotMetadataGeneratorFactory.class)
                  .in(Singleton.class);
  
          bind(MetadataGeneratorFactory.class)
                  .annotatedWith(Names.named("versions"))
                  .to(VersionsMetadataGeneratorFactory.class)
                  .in(Singleton.class);
  
          bind(RepositoryConnectorFactory.class)
                  .annotatedWith(Names.named("basic"))
                  .to(BasicRepositoryConnectorFactory.class);
          bind(TransporterFactory.class).annotatedWith(Names.named("file")).to(FileTransporterFactory.class);
          bind(TransporterFactory.class).annotatedWith(Names.named("http")).to(HttpTransporterFactory.class);
      }
  
      /**
       * Checksum extractors (none).
       */
      @Provides
      @Singleton
      Map<String, ChecksumExtractor> provideChecksumExtractors() {
          return Collections.emptyMap();
      }
  
     /**
      * Repository system connectors (needed for remote transport).
      */
     @Provides
     @Singleton
     Set<RepositoryConnectorFactory> provideRepositoryConnectorFactories(
             @Named("basic") RepositoryConnectorFactory basic) {
         Set<RepositoryConnectorFactory> factories = new HashSet<>();
         factories.add(basic);
         return Collections.unmodifiableSet(factories);
     }
 
     /**
      * Repository system transporters (needed for remote transport).
      */
     @Provides
     @Singleton
     Set<TransporterFactory> provideTransporterFactories(
             @Named("file") TransporterFactory file, @Named("http") TransporterFactory http) {
         Set<TransporterFactory> factories = new HashSet<>();
         factories.add(file);
         factories.add(http);
         return Collections.unmodifiableSet(factories);
     }
 
     /**
      * Repository metadata generators (needed for remote transport).
      */
     @Provides
     @Singleton
     Set<MetadataGeneratorFactory> provideMetadataGeneratorFactories(
             @Named("snapshot") MetadataGeneratorFactory snapshot,
             @Named("versions") MetadataGeneratorFactory versions) {
         Set<MetadataGeneratorFactory> factories = new HashSet<>(2);
         factories.add(snapshot);
         factories.add(versions);
         return Collections.unmodifiableSet(factories);
     }
 
     /**
      * Simple instance provider for model builder factory. Note: Maven 3.8.1 {@link ModelBuilder} is annotated
      * and would require much more.
      */
     @Provides
     ModelBuilder provideModelBuilder() {
         return new DefaultModelBuilderFactory().newInstance();
     }
 
     @Provides
     ModelCacheFactory provideModelCacheFactory() {
         return new DefaultModelCacheFactory();
     }
 }