/**
 * Copyright (c) 2010, Sebastian Sdorra
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of SCM-Manager; nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * http://bitbucket.org/sdorra/scm-manager
 *
 */



package sonia.scm.repository.api;

//~--- non-JDK imports --------------------------------------------------------

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import sonia.scm.repository.PermissionType;
import sonia.scm.repository.Repository;
import sonia.scm.repository.RepositoryException;
import sonia.scm.repository.spi.PushCommand;
import sonia.scm.repository.spi.PushCommandRequest;
import sonia.scm.security.RepositoryPermission;

//~--- JDK imports ------------------------------------------------------------

import java.io.IOException;

import java.net.URL;

/**
 * The push command push changes to a other repository.
 *
 * @author Sebastian Sdorra
 * @since 1.31
 */
public final class PushCommandBuilder
{

  /**
   * the logger for PushCommandBuilder
   */
  private static final Logger logger =
    LoggerFactory.getLogger(PushCommandBuilder.class);

  //~--- constructors ---------------------------------------------------------

  /**
   * Constructs a new PushCommandBuilder.
   *
   * @param command implementation of the {@link PushCommand}
   */
  PushCommandBuilder(PushCommand command)
  {
    this.command = command;
  }

  //~--- methods --------------------------------------------------------------

  /**
   * Push all changes to the given remote repository.
   *
   * @param remoteRepository remote repository
   *
   * @return informations of the executed push command
   *
   * @throws IOException
   * @throws RepositoryException
   */
  public PushResponse push(Repository remoteRepository)
    throws IOException, RepositoryException
  {
    Subject subject = SecurityUtils.getSubject();

    //J-
    subject.checkPermission(
      new RepositoryPermission(remoteRepository, PermissionType.WRITE)
    );
    //J+

    logger.info("push changes to repository {}", remoteRepository.getId());

    request.reset();
    request.setRemoteRepository(remoteRepository);

    return command.push(request);
  }

  /**
   * Push all changes to the given remote url.
   *
   * @param url url of a remote repository
   *
   * @return informations of the executed push command
   *
   * @throws IOException
   * @throws RepositoryException
   *
   * @since 1.43
   */
  public PushResponse push(String url) throws IOException, RepositoryException
  {

    URL remoteUrl = new URL(url);

    logger.info("push changes to url {}", url);

    request.reset();
    request.setRemoteUrl(remoteUrl);

    return command.push(request);
  }

  //~--- fields ---------------------------------------------------------------

  /** push command implementation */
  private PushCommand command;

  /** push command request */
  private PushCommandRequest request = new PushCommandRequest();
}
