/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - 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.

  *

  *   - Neither the name of Pebble 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 COPYRIGHT OWNER 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.

  */

 package net.sourceforge.pebble.web.view.impl;

 import com.sun.syndication.feed.synd.*;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.api.decorator.FeedDecorator;

 import net.sourceforge.pebble.domain.*;

 import net.sourceforge.pebble.security.PebbleUserDetails;

 import java.util.*;

 /**

  * The view for the feed responses

  *

  * @author James Roper

  */

 public class ResponseFeedView extends AbstractRomeFeedView {

   public ResponseFeedView(FeedType feedType) {

     super(feedType);

   }

   @SuppressWarnings("unchecked")

   protected SyndFeed getFeed() {

     Blog blog = (Blog) getModel().get(Constants.BLOG_KEY);

     BlogEntry blogEntry = (BlogEntry) getModel().get(Constants.BLOG_ENTRY_KEY);

     List<Response> responses = (List<Response>) getModel().get(Constants.RESPONSES);

     Collection<FeedDecorator> feedDecorators = blog.getFeedDecorators();

     SyndFeed syndFeed = new SyndFeedImpl();

     syndFeed.setUri(generateId(blog, null, "responses"));

     if (blogEntry == null) {

       populateFeedInfo(blog, syndFeed);

     } else {

       populateFeedInfo(blogEntry, syndFeed);

     }

     if (blog.getImage() != null) {

       SyndImage syndImage = new SyndImageImpl();

       syndImage.setUrl(blog.getImage());

       syndImage.setTitle(blog.getName());

       syndImage.setUrl(blog.getUrl());

       syndFeed.setImage(syndImage);

       // Unfortunately, ROME doesn't support the logo attribute for Atom in a feed agnostic way

     }

     syndFeed.setLanguage(blog.getLanguage());

     List<SyndEntry> feedEntries = new ArrayList<SyndEntry>();

     for (Response response : responses) {

       SyndEntry feedEntry = convertResponse(response);

       for (FeedDecorator feedDecorator : feedDecorators) {

         feedDecorator.decorate(feedEntry, blog, response);

       }

       feedEntries.add(feedEntry);

     }

     syndFeed.setEntries(feedEntries);

     for (FeedDecorator feedDecorator : feedDecorators) {

       feedDecorator.decorate(syndFeed, blog, blogEntry);

     }

     return syndFeed;

   }

   private SyndEntry convertResponse(Response response) {

     SyndEntry feedEntry = new SyndEntryImpl();

     feedEntry.setUri(generateId(response.getBlogEntry().getBlog(), response.getBlogEntry().getDate(), response.getGuid()));

     feedEntry.setTitle(response.getTitle());

     feedEntry.setLink(response.getPermalink());

     SyndPerson entryAuthor = new SyndPersonImpl();

     entryAuthor.setName(response.getSourceName());

     entryAuthor.setUri(response.getSourceLink());

     feedEntry.setAuthors(Collections.singletonList(entryAuthor));

     feedEntry.setUpdatedDate(response.getDate());

     feedEntry.setPublishedDate(response.getDate());

     SyndContent content = new SyndContentImpl();

     content.setType("text/html");

     content.setValue(response.getContent());

     feedEntry.setContents(Collections.singletonList(content));

     return feedEntry;

   }

   private void populateFeedInfo(BlogEntry blogEntry, SyndFeed syndFeed) {

     syndFeed.setTitle(blogEntry.getBlog().getName() + " - " + blogEntry.getTitle());

     syndFeed.setLink(blogEntry.getPermalink());

     SyndLink alternate = new SyndLinkImpl();

     alternate.setHref(blogEntry.getPermalink());

     alternate.setRel("alternate");

     alternate.setType("text/html");

     SyndLink self = new SyndLinkImpl();

     self.setHref(blogEntry.getBlog().getUrl() + "responses/atom.xml?entry=" + blogEntry.getId());

     self.setRel("self");

     self.setType(getFeedType().getContentType());

     syndFeed.setLinks(Arrays.asList(alternate, self));

     syndFeed.setPublishedDate(blogEntry.getLastModified());

     PebbleUserDetails userDetails = blogEntry.getUser();

     SyndPerson author = new SyndPersonImpl();

     author.setName(userDetails.getName());

     author.setUri(userDetails.getWebsite());

     syndFeed.setAuthors(Collections.singletonList(author));

     syndFeed.setDescription(blogEntry.getTruncatedContent());

     syndFeed.setCopyright(userDetails.getName());

   }

   private void populateFeedInfo(Blog blog, SyndFeed syndFeed) {

     syndFeed.setTitle(blog.getName() + " - Responses");

     syndFeed.setLink(blog.getUrl());

     SyndLink alternate = new SyndLinkImpl();

     alternate.setHref(blog.getUrl());

     alternate.setRel("alternate");

     alternate.setType("text/html");

     SyndLink self = new SyndLinkImpl();

     self.setHref(blog.getUrl() + "responses/atom.xml");

     self.setRel("self");

     self.setType(getFeedType().getContentType());

     syndFeed.setLinks(Arrays.asList(alternate, self));

     syndFeed.setPublishedDate(blog.getDateOfLastResponse());

     syndFeed.setAuthor(blog.getAuthor());

     syndFeed.setCopyright(blog.getAuthor());

     syndFeed.setDescription(blog.getDescription());

   }

 }