/**
 * 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.web;

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

import com.google.common.io.Closeables;
import com.google.inject.Inject;

import org.tmatesoft.svn.core.SVNErrorMessage;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.internal.server.dav.CollectionRenderer;
import org.tmatesoft.svn.core.internal.server.dav.DAVResource;

import sonia.scm.template.Template;
import sonia.scm.template.TemplateEngine;
import sonia.scm.template.TemplateEngineFactory;

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

import java.io.IOException;
import java.io.StringWriter;

/**
 *
 * @author Sebastian Sdorra
 */
public class SvnCollectionRenderer implements CollectionRenderer
{

  /** Field description */
  private static final String RESOURCE_SVNINDEX =
    "sonia/scm/svn.index.mustache";

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

  /**
   * Constructs ...
   *
   *
   * @param templateEngineFactory
   */
  @Inject
  public SvnCollectionRenderer(TemplateEngineFactory templateEngineFactory)
  {
    this.templateEngineFactory = templateEngineFactory;
  }

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

  /**
   * Method description
   *
   *
   * @param buffer
   * @param resource
   *
   * @throws SVNException
   */
  @Override
  public void renderCollection(StringBuilder buffer, DAVResource resource)
    throws SVNException
  {
    TemplateEngine engine = templateEngineFactory.getDefaultEngine();

    StringWriter writer = new StringWriter();

    try
    {
      Template template = engine.getTemplate(RESOURCE_SVNINDEX);

      template.execute(writer, new Object());
    }
    catch (IOException ex)
    {
      throw new SVNException(SVNErrorMessage.UNKNOWN_ERROR_MESSAGE);
    }

    writer.flush();
    buffer.append(writer.toString());
  }

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

  /** Field description */
  private final TemplateEngineFactory templateEngineFactory;
}