/**
 * 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.api.rest.resources;

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

import com.google.inject.Inject;
import com.google.inject.Singleton;

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

import org.codehaus.enunciate.modules.jersey.ExternallyManagedLifecycle;

import sonia.scm.config.ScmConfiguration;
import sonia.scm.security.Role;
import sonia.scm.security.ScmSecurityException;
import sonia.scm.util.ScmConfigurationUtil;

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

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;

/**
 *
 * @author Sebastian Sdorra
 */
@Singleton
@Path("config")
@ExternallyManagedLifecycle
public class ConfigurationResource
{

  /**
   * Constructs ...
   *
   *
   * @param configuration
   * @param securityContextProvider
   */
  @Inject
  public ConfigurationResource(ScmConfiguration configuration)
  {
    this.configuration = configuration;
  }

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

  /**
   * Method description
   *
   *
   * @return
   */
  @GET
  @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
  public Response getConfiguration()
  {
    Response response = null;

    if (SecurityUtils.getSubject().hasRole(Role.ADMIN))
    {
      response = Response.ok(configuration).build();
    }
    else
    {
      response = Response.status(Response.Status.FORBIDDEN).build();
    }

    return response;
  }

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

  /**
   * Method description
   *
   *
   * @param uriInfo
   * @param newConfig
   *
   * @return
   */
  @POST
  @Consumes({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
  public Response setConfig(@Context UriInfo uriInfo,
    ScmConfiguration newConfig)
  {

    // TODO replace by checkRole
    Subject subject = SecurityUtils.getSubject();

    if (!subject.hasRole(Role.ADMIN))
    {
      throw new ScmSecurityException("admin privileges required");
    }

    configuration.load(newConfig);

    synchronized (ScmConfiguration.class)
    {
      ScmConfigurationUtil.getInstance().store(configuration);
    }

    return Response.created(uriInfo.getRequestUri()).build();
  }

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

  /** Field description */
  public ScmConfiguration configuration;
}
