/*
 * 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.jclouds.chef.test.config;

import static com.google.common.util.concurrent.MoreExecutors.sameThreadExecutor;

import java.io.IOException;
import java.security.PrivateKey;
import java.security.spec.InvalidKeySpecException;
import java.util.List;

import javax.inject.Singleton;

import org.jclouds.ContextBuilder;
import org.jclouds.blobstore.TransientApiMetadata;
import org.jclouds.blobstore.config.LocalBlobStore;
import org.jclouds.chef.ChefApi;
import org.jclouds.chef.config.Validator;
import org.jclouds.chef.domain.Client;
import org.jclouds.chef.functions.BootstrapConfigForGroup;
import org.jclouds.chef.functions.ClientForGroup;
import org.jclouds.chef.functions.RunListForGroup;
import org.jclouds.chef.test.TransientChefApi;
import org.jclouds.concurrent.config.ExecutorServiceModule;
import org.jclouds.crypto.Crypto;
import org.jclouds.domain.JsonBall;
import org.jclouds.rest.ConfiguresHttpApi;
import org.jclouds.rest.config.RestModule;

import com.google.common.base.Optional;
import com.google.common.base.Supplier;
import com.google.common.cache.CacheLoader;
import com.google.common.collect.ImmutableSet;
import com.google.inject.AbstractModule;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.Provides;
import com.google.inject.name.Names;

@ConfiguresHttpApi
public class TransientChefApiModule extends AbstractModule {

   @Override
   protected void configure() {
      install(new RestModule());
      bind(ChefApi.class).to(TransientChefApi.class);
      bind(LocalBlobStore.class).annotatedWith(Names.named("databags"))
            .toInstance(
                  ContextBuilder
                        .newBuilder(new TransientApiMetadata())
                        .modules(
                              ImmutableSet.<Module> of(new ExecutorServiceModule(sameThreadExecutor(),
                                    sameThreadExecutor()))).buildInjector().getInstance(LocalBlobStore.class));
   }

   @Provides
   @Singleton
   public Supplier<PrivateKey> supplyKey() {
      return new Supplier<PrivateKey>() {
         @Override
         public PrivateKey get() {
            return null;
         }
      };
   }

   @Provides
   @Singleton
   CacheLoader<String, List<String>> runListForGroup(RunListForGroup runListForGroup) {
      return CacheLoader.from(runListForGroup);
   }

   @Provides
   @Singleton
   CacheLoader<String, ? extends JsonBall> bootstrapConfigForGroup(BootstrapConfigForGroup bootstrapConfigForGroup) {
      return CacheLoader.from(bootstrapConfigForGroup);
   }

   @Provides
   @Singleton
   CacheLoader<String, Client> groupToClient(ClientForGroup clientForGroup) {
      return CacheLoader.from(clientForGroup);
   }

   @Provides
   @Singleton
   @Validator
   public Optional<String> provideValidatorName(Injector injector) {
      return Optional.absent();
   }

   @Provides
   @Singleton
   @Validator
   public Optional<PrivateKey> provideValidatorCredential(Crypto crypto, Injector injector)
         throws InvalidKeySpecException, IOException {
      return Optional.absent();
   }

}