/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * Licensed 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 jetbrains.buildServer.clouds.vmware.vmrun;

import java.util.Collection;
import jetbrains.buildServer.clouds.CloudException;
import jetbrains.buildServer.clouds.CloudInstanceUserData;
import jetbrains.buildServer.clouds.vmware.settings.VMImageInfo;
import jetbrains.buildServer.clouds.vmware.vmrun.remote.Timeout;
import org.jetbrains.annotations.NotNull;

/**
 * @author Eugene Petrenko
 *         Created: 07.12.2009 19:27:36
 */
public interface VMRun {
  /**
   * Protocol version
   */
  int VERSION = 42;

  /**
   * @return information about current client. Should be system-unique
   */
  @NotNull
  String getLocationId();

  /**
   * @return machine host name to be shown in web ui
   */
  @NotNull
  String getHostName();

  /**
   * Command to start the VM. Image may not
   * be started if it was not yet downloaded
   * to the local machine.
   *
   * @param instance instance information to start
   * @param data instace stat data
   * @throws jetbrains.buildServer.clouds.CloudException on error
   * @throws jetbrains.buildServer.clouds.QuotaException if there is not change of running one extra machine
   */
  @Timeout(15* 60 * 1000L)
  void startMachine(@NotNull VMRunParameters instance, @NotNull CloudInstanceUserData data) throws CloudException;

  /**
   * Terminates running image on the machine
   * @param image image
   */
  @Timeout(5* 60 * 1000L)
  void terminateMachine(@NotNull VMImageInfo image);

  /**
   * @return returns only running images back.
   */
  @Timeout(60 * 1000L)
  @NotNull
  Collection<VMImageInfo> getRunningImages();

  /**
   * Downloading of an image may take too much time.
   *
   * @return returns list of images that are ready to start on the machine.
   */
  @NotNull
  Collection<VMImageInfo> getLocalImages();

  /**
   * @return number of virtual machines that allowed to run on the host
   */
  int getAllowedMachinesToRun();

  /**
   * method for checking client and server versions
   * @param serverVersion
   * @return client version
   */
  int getVersion(int serverVersion);
}