/*
 * Copyright (C) 2003-2011 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 */
package org.exoplatform.wcm.ext.component.activity;

import org.apache.commons.lang.StringUtils;
import org.exoplatform.services.jcr.RepositoryService;
import org.exoplatform.services.jcr.core.ManageableRepository;
import org.exoplatform.services.jcr.ext.common.SessionProvider;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.wcm.utils.WCMCoreUtils;
import org.exoplatform.social.core.activity.model.ExoSocialActivity;
import org.exoplatform.social.plugin.doc.UIDocActivity;
import org.exoplatform.social.webui.activity.BaseUIActivity;
import org.exoplatform.social.webui.activity.BaseUIActivityBuilder;

import java.util.regex.Pattern;

import javax.jcr.Node;
import javax.jcr.RepositoryException;

/**
 * Created by The eXo Platform SAS Author : eXoPlatform exo@exoplatform.com Mar
 * 15, 2011
 */
public class FileUIActivityBuilder extends BaseUIActivityBuilder {
  private static final Log LOG = ExoLogger.getLogger(FileUIActivityBuilder.class);
  private Pattern  patternLink;
  
  @Override
  protected void extendUIActivity(BaseUIActivity uiActivity, ExoSocialActivity activity) {
	String HTML_A_HREF_TAG_PATTERN = "^<a\\s*(?i)href\\s*=\\s*(\"([^\"]*\")|'[^']*'|([^'\">\\s]>"+ activity.getTemplateParams().get(FileUIActivity.DOCUMENT_TITLE) +"<\\/a>$))";
    FileUIActivity fileActivity = (FileUIActivity) uiActivity;

    patternLink = Pattern.compile(HTML_A_HREF_TAG_PATTERN);
    // set data into the UI component of activity
    if (activity.getTemplateParams() != null) {
      fileActivity.setUIActivityData(activity.getTemplateParams());
    }
    // Verify if the original message is empty from activity parameters
    // If empty, do not set a message to display, else display the activity
    // title.
    // In fact the activity title has as default value, if empty, the file names
    // or
    // org.exoplatform.social.plugin.doc.UIDocActivityComposer.docActivityTitle.
    // So we couldn't set activity.getTitle() all the time, see INTEG-486
    if (activity.getTemplateParams() != null
        && StringUtils.isNotBlank(activity.getTemplateParams().get(FileUIActivity.ACTIVITY_STATUS)) ||
        ( !patternLink.matcher(activity.getTitle()).find() )){
      fileActivity.setMessage(activity.getTitle());
    } else {
      fileActivity.setMessage(null);
    }

    if (fileActivity.getFilesCount() > 0) {
      // get nodes data
      RepositoryService repositoryService = WCMCoreUtils.getService(RepositoryService.class);
      ManageableRepository manageRepo = null;
      Node contentNode = null;
      try {
        manageRepo = repositoryService.getCurrentRepository();
        SessionProvider sessionProvider = WCMCoreUtils.getUserSessionProvider();
        for (String ws : manageRepo.getWorkspaceNames()) {
          try {
            for (int i = 0; i < fileActivity.getFilesCount(); i++) {
              if (StringUtils.isEmpty(fileActivity.getNodeUUID(i))) {
                String contentLink = fileActivity.getContentLink(i);
                String _ws = contentLink.split("/")[0];
                String _repo = contentLink.split("/")[1];
                String nodePath = contentLink.replace(_ws + "/" + _repo, "");
                contentNode = (Node) sessionProvider.getSession(ws, manageRepo).getItem(nodePath);
                fileActivity.setContentNode(contentNode, i);
              } else {
                contentNode = sessionProvider.getSession(ws, manageRepo).getNodeByUUID(fileActivity.getNodeUUID(i));
              }
              fileActivity.setContentNode(contentNode, i);
            }
          } catch (RepositoryException e) {
            continue;
          }
        }
      } catch (RepositoryException re) {
        LOG.error("Can not get the repository. ", re);
      }
    }
  }
}
