/**
 * 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.cloudsigma.compute.config;

import java.util.concurrent.TimeUnit;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.cloudsigma.CloudSigmaAsyncClient;
import org.jclouds.cloudsigma.CloudSigmaClient;
import org.jclouds.cloudsigma.compute.CloudSigmaComputeServiceAdapter;
import org.jclouds.cloudsigma.compute.CloudSigmaTemplateBuilderImpl;
import org.jclouds.cloudsigma.compute.functions.ParseOsFamilyVersion64BitFromImageName;
import org.jclouds.cloudsigma.compute.functions.PreinstalledDiskToImage;
import org.jclouds.cloudsigma.compute.functions.ServerInfoToNodeMetadata;
import org.jclouds.cloudsigma.compute.functions.ServerInfoToNodeMetadata.DeviceToVolume;
import org.jclouds.cloudsigma.compute.functions.ServerInfoToNodeMetadata.FindImageForId;
import org.jclouds.cloudsigma.compute.functions.ServerInfoToNodeMetadata.GetImageIdFromServer;
import org.jclouds.cloudsigma.compute.options.CloudSigmaTemplateOptions;
import org.jclouds.cloudsigma.domain.Device;
import org.jclouds.cloudsigma.domain.DriveInfo;
import org.jclouds.cloudsigma.domain.Server;
import org.jclouds.cloudsigma.domain.ServerInfo;
import org.jclouds.cloudsigma.predicates.DriveClaimed;
import org.jclouds.compute.ComputeServiceAdapter;
import org.jclouds.compute.config.ComputeServiceAdapterContextModule;
import org.jclouds.compute.domain.Hardware;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.OsFamily;
import org.jclouds.compute.domain.OsFamilyVersion64Bit;
import org.jclouds.compute.domain.TemplateBuilder;
import org.jclouds.compute.domain.Volume;
import org.jclouds.compute.options.TemplateOptions;
import org.jclouds.compute.reference.ComputeServiceConstants;
import org.jclouds.domain.Location;
import org.jclouds.functions.IdentityFunction;
import org.jclouds.location.suppliers.OnlyLocationOrFirstZone;
import org.jclouds.predicates.RetryablePredicate;

import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.base.Supplier;
import com.google.common.cache.LoadingCache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.inject.Injector;
import com.google.inject.Provides;
import com.google.inject.TypeLiteral;

/**
 * 
 * @author Adrian Cole
 */
public class CloudSigmaComputeServiceContextModule
      extends
      ComputeServiceAdapterContextModule<CloudSigmaClient, CloudSigmaAsyncClient, ServerInfo, Hardware, DriveInfo, Location> {

   public CloudSigmaComputeServiceContextModule() {
      super(CloudSigmaClient.class, CloudSigmaAsyncClient.class);
   }

   @Override
   protected TemplateBuilder provideTemplate(Injector injector, TemplateBuilder template) {
      return template.osFamily(OsFamily.UBUNTU).imageNameMatches(".*automated SSH Access.*");
   }

   @SuppressWarnings({ "unchecked", "rawtypes" })
   @Override
   protected void configure() {
      super.configure();
      bind(new TypeLiteral<ComputeServiceAdapter<ServerInfo, Hardware, DriveInfo, Location>>() {
      }).to(CloudSigmaComputeServiceAdapter.class);
      bind(new TypeLiteral<Function<ServerInfo, NodeMetadata>>() {
      }).to(ServerInfoToNodeMetadata.class);
      bind(new TypeLiteral<Function<Hardware, Hardware>>() {
      }).to((Class) IdentityFunction.class);
      bind(new TypeLiteral<Function<DriveInfo, Image>>() {
      }).to(PreinstalledDiskToImage.class);
      bind(new TypeLiteral<Function<Location, Location>>() {
      }).to((Class) IdentityFunction.class);
      bind(new TypeLiteral<Function<Device, Volume>>() {
      }).to(DeviceToVolume.class);
      bind(new TypeLiteral<Function<Server, String>>() {
      }).to(GetImageIdFromServer.class);
      bind(new TypeLiteral<Function<String, Image>>() {
      }).to(FindImageForId.class);
      bind(new TypeLiteral<Function<String, OsFamilyVersion64Bit>>() {
      }).to(ParseOsFamilyVersion64BitFromImageName.class);
      bind(new TypeLiteral<Supplier<Location>>() {
      }).to(OnlyLocationOrFirstZone.class);
      bind(TemplateBuilder.class)
      .to(CloudSigmaTemplateBuilderImpl.class);
   }

   @Provides
   @Singleton
   protected LoadingCache<String, DriveInfo> cache(GetDrive getDrive) {
      return CacheBuilder.newBuilder().build(getDrive);
   }

   @Singleton
   public static class GetDrive extends CacheLoader<String, DriveInfo> {
      private final CloudSigmaClient client;

      @Inject
      public GetDrive(CloudSigmaClient client) {
         this.client = client;
      }

      @Override
      public DriveInfo load(String input) {
         return client.getDriveInfo(input);
      }
   }

   @Provides
   @Singleton
   protected Predicate<DriveInfo> supplyDriveUnclaimed(DriveClaimed driveClaimed,
         ComputeServiceConstants.Timeouts timeouts) {
      return new RetryablePredicate<DriveInfo>(Predicates.not(driveClaimed), timeouts.nodeRunning, 1000,
            TimeUnit.MILLISECONDS);
   }

   @Provides
   @Singleton
   protected TemplateOptions templateOptions() {
      return new CloudSigmaTemplateOptions();
   }
}