/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.azureblob.blobstore.config;

import java.util.concurrent.TimeUnit;

import javax.inject.Singleton;

import org.jclouds.azureblob.AzureBlobAsyncClient;
import org.jclouds.azureblob.AzureBlobClient;
import org.jclouds.azureblob.blobstore.AzureAsyncBlobStore;
import org.jclouds.azureblob.blobstore.AzureBlobRequestSigner;
import org.jclouds.azureblob.blobstore.AzureBlobStore;
import org.jclouds.azureblob.blobstore.strategy.FindMD5InBlobProperties;
import org.jclouds.azureblob.domain.PublicAccess;
import org.jclouds.blobstore.AsyncBlobStore;
import org.jclouds.blobstore.BlobRequestSigner;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.blobstore.BlobStoreContext;
import org.jclouds.blobstore.attr.ConsistencyModel;
import org.jclouds.blobstore.config.BlobStoreMapModule;
import org.jclouds.blobstore.internal.BlobStoreContextImpl;
import org.jclouds.blobstore.strategy.ContainsValueInListStrategy;
import org.jclouds.location.config.JustProviderLocationModule;

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Scopes;
import com.google.inject.TypeLiteral;

/**
 * Configures the {@link AzureBlobStoreContext}; requires {@link AzureAsyncBlobStore} bound.
 * 
 * @author Adrian Cole
 */
public class AzureBlobStoreContextModule extends AbstractModule {

   @Override
   protected void configure() {
      install(new BlobStoreMapModule());
      install(new JustProviderLocationModule());
      bind(ConsistencyModel.class).toInstance(ConsistencyModel.STRICT);
      bind(AsyncBlobStore.class).to(AzureAsyncBlobStore.class).in(Scopes.SINGLETON);
      bind(BlobStore.class).to(AzureBlobStore.class).in(Scopes.SINGLETON);
      bind(BlobStoreContext.class).to(new TypeLiteral<BlobStoreContextImpl<AzureBlobClient, AzureBlobAsyncClient>>() {
      }).in(Scopes.SINGLETON);
      bind(ContainsValueInListStrategy.class).to(FindMD5InBlobProperties.class);
      bind(BlobRequestSigner.class).to(AzureBlobRequestSigner.class);
   }

   @Provides
   @Singleton
   protected LoadingCache<String, PublicAccess> containerAcls(final AzureBlobClient client) {
      return CacheBuilder.newBuilder().expireAfterWrite(30, TimeUnit.SECONDS).build(
               new CacheLoader<String, PublicAccess>() {
                  @Override
                  public PublicAccess load(String container) {
                     return client.getPublicAccessForContainer(container);
                  }

                  @Override
                  public String toString() {
                     return "getPublicAccessForContainer()";
                  }
               });
   }
}
