/*
 * ToroDB
 * Copyright © 2014 8Kdata Technology (www.8kdata.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.torodb.torod.guice;

import com.google.common.util.concurrent.AbstractService;
import com.google.inject.PrivateModule;
import com.google.inject.Singleton;
import com.google.inject.assistedinject.FactoryModuleBuilder;
import com.torodb.core.backend.WriteBackendTransaction;
import com.torodb.core.d2r.D2RTranslatorFactory;
import com.torodb.core.dsl.backend.BackendTransactionJobFactory;
import com.torodb.core.transaction.metainf.MetaDatabase;
import com.torodb.core.transaction.metainf.MutableMetaCollection;
import com.torodb.torod.TorodBundle;
import com.torodb.torod.TorodBundleFactory;
import com.torodb.torod.TorodServer;
import com.torodb.torod.impl.memory.MemoryTorodServer;
import com.torodb.torod.pipeline.InsertPipeline;
import com.torodb.torod.pipeline.InsertPipelineFactory;
import com.torodb.torod.pipeline.impl.SameThreadInsertPipeline;

import javax.inject.Inject;

/**
 *
 */
public class MemoryTorodModule extends PrivateModule {

  @Override
  protected void configure() {
    bind(MemoryTorodServer.class)
        .in(Singleton.class);

    bind(TorodServer.class)
        .to(MemoryTorodServer.class);

    install(new FactoryModuleBuilder()
        .implement(TorodBundle.class, TorodBundle.class)
        .build(TorodBundleFactory.class)
    );
    expose(TorodBundleFactory.class);

    bind(InsertPipelineFactory.class)
        .to(MemoryInsertPipelineFactory.class)
        .in(Singleton.class);
  }

  private static class MemoryInsertPipelineFactory extends AbstractService
      implements InsertPipelineFactory {

    private final BackendTransactionJobFactory backendTransactionJobFactory;

    @Inject
    public MemoryInsertPipelineFactory(
        BackendTransactionJobFactory backendTransactionJobFactory) {
      this.backendTransactionJobFactory = backendTransactionJobFactory;
    }

    @Override
    protected void doStart() {
      notifyStarted();
    }

    @Override
    protected void doStop() {
      notifyStopped();
    }

    @Override
    public InsertPipeline createInsertPipeline(
        D2RTranslatorFactory translatorFactory, MetaDatabase metaDb,
        MutableMetaCollection mutableMetaCollection,
        WriteBackendTransaction backendConnection, boolean concurrent) {
      return new SameThreadInsertPipeline(translatorFactory, metaDb,
          mutableMetaCollection, backendConnection,
          backendTransactionJobFactory);
    }

  }

}