# GalleryPasteMediaDataProcess.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * 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.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception. You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "http://www.silverpeas.org/docs/core/legal/floss_exception.html"
     *
     * 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 Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program. If not, see <https://www.gnu.org/licenses/>.
     */
    package org.silverpeas.components.gallery.process.media;

    import org.silverpeas.components.gallery.dao.MediaDAO;
    import org.silverpeas.components.gallery.model.AlbumMedia;
    import org.silverpeas.components.gallery.model.Media;
    import org.silverpeas.components.gallery.model.MediaPK;
    import org.silverpeas.components.gallery.notification.AlbumMediaEventNotifier;
    import org.silverpeas.components.gallery.process.AbstractGalleryDataProcess;
    import org.silverpeas.core.ResourceReference;
    import org.silverpeas.core.comment.service.CommentServiceProvider;
    import org.silverpeas.core.contribution.content.form.FormException;
    import org.silverpeas.core.contribution.content.form.RecordSet;
    import org.silverpeas.core.contribution.content.form.record.GenericRecordSet;
    import org.silverpeas.core.contribution.template.publication.PublicationTemplate;
    import org.silverpeas.core.contribution.template.publication.PublicationTemplateException;
    import org.silverpeas.core.notification.system.ResourceEvent;
    import org.silverpeas.core.pdc.PdcServiceProvider;
    import org.silverpeas.core.pdc.pdc.model.PdcException;
    import org.silverpeas.core.process.management.ProcessExecutionContext;
    import org.silverpeas.core.process.session.ProcessSession;
    import org.silverpeas.kernel.util.StringUtil;
    import org.silverpeas.kernel.logging.SilverLogger;

    import java.sql.SQLException;
    import java.util.Collection;

    import static org.silverpeas.kernel.util.StringUtil.isDefined;

    /**
     * Process to paste a media in Database
     * @author Yohann Chastagnier
     */
    public class GalleryPasteMediaDataProcess extends AbstractGalleryDataProcess {

      /*
       * Identifier of the album (the corresponding {@link org.silverpeas.core.node.model.NodeDetail})
       */
      private final String albumId;
      private Collection<String> albumIdsForDeletion;

      private final MediaPK fromMediaPk;
      private final boolean isCut;

      private boolean isSameComponentInstanceDestination = true;
      private ResourceReference fromResourceReference = null;
      private ResourceReference toResourceReference = null;
      private MediaPK toMediaPK = null;
      private final Media mediaBeforeChanges;

      protected GalleryPasteMediaDataProcess(final Media media, final String albumId,
          final MediaPK fromMediaPk, final boolean isCut) {
        super(media);
        this.albumId = albumId;
        this.fromMediaPk = fromMediaPk;
        this.isCut = isCut;
        this.mediaBeforeChanges = media.getCopy();
      }

      public static GalleryPasteMediaDataProcess getInstance(final Media media, final String albumId,
          final MediaPK fromMediaPk, final boolean isCut) {
        return new GalleryPasteMediaDataProcess(media, albumId, fromMediaPk, isCut);
      }

      @Override
      protected void processData(final ProcessExecutionContext context,
          final ProcessSession session) throws Exception {
        // Gets the albums
        albumIdsForDeletion = MediaDAO.getAlbumIdsOf(mediaBeforeChanges);
        albumIdsForDeletion.remove(albumId);

        // Initializing variables
        isSameComponentInstanceDestination =
            fromMediaPk.getInstanceId().equals(context.getComponentInstanceId());
        fromResourceReference = new ResourceReference(getMedia().getId(), fromMediaPk.getInstanceId());

        // If the destination application is different from the original, then update destination
        // information and user data
        if (!isSameComponentInstanceDestination) {
          getMedia().getMediaPK().setComponentName(context.getComponentInstanceId());
        }

        // If the paste action is copy and paste (not cut and paste), then create the new media
        if (!isCut) {
          createMedia(albumId, context);
        } else {
          updateMedia(true, context);
          if (isSameComponentInstanceDestination) {

            // Move into the same application
            moveMediaPath(context.getComponentInstanceId(), albumId, context);

          } else {

            // Updating repository data
            moveMediaPath(fromMediaPk.getInstanceId(), albumId, context);
          }
        }

        // Initializing variables after media creation
        toResourceReference = new ResourceReference(getMedia().getId(), context.getComponentInstanceId());
        toMediaPK = new MediaPK(getMedia().getId(), context.getComponentInstanceId());

        // Commons
        processPasteCommons(context);
      }

      private void moveMediaPath(final String fromComponentInstanceId, final String albumId,
          final ProcessExecutionContext context) throws SQLException {
        getMedia().setComponentInstanceId(fromComponentInstanceId);
        MediaDAO.deleteAllMediaPath(getMedia());
        getMedia().setComponentInstanceId(context.getComponentInstanceId());
        MediaDAO.saveMediaPath(getMedia(), albumId);
      }

      private void processPasteCommons(final ProcessExecutionContext context)
          throws PdcException, FormException {
        if (!isCut || !isSameComponentInstanceDestination) {
          // Paste positions on Pdc
          final int fromSilverObjectId = getGalleryService().getSilverObjectId(fromMediaPk);
          final int toSilverObjectId = getGalleryService().getSilverObjectId(toMediaPK);

          PdcServiceProvider.getPdcManager()
              .copyPositions(fromSilverObjectId, fromMediaPk.getInstanceId(), toSilverObjectId,
                  context.getComponentInstanceId());

          // move comments
          CommentServiceProvider.getCommentService()
              .moveAndReindexComments(getMedia().getContributionType(), fromResourceReference,
                  toResourceReference);

          // XML Form
          pasteXmlForm(context);
        }
      }

      private void pasteXmlForm(final ProcessExecutionContext context) throws FormException {
        if (!isCut || !isSameComponentInstanceDestination) {
          try {
            final String xmlFormName = getXMLFormName(context);
            if (isDefined(xmlFormName)) {

              // Stopping if no defined XML form is detected
              final String xmlFormShortName =
                  xmlFormName.substring(xmlFormName.indexOf("/") + 1, xmlFormName.indexOf("."));
              if (StringUtil.isNotDefined(xmlFormShortName) && "0".equals(xmlFormShortName)) {
                return;
              }

              // Getting the recordset
              GenericRecordSet toRecordset = getPublicationTemplateManager()
                  .addDynamicPublicationTemplate(
                      toResourceReference.getInstanceId() + ":" + xmlFormShortName,
                      xmlFormShortName + ".xml");

              PublicationTemplate pubTemplate = getPublicationTemplateManager()
                  .getPublicationTemplate(fromMediaPk.getInstanceId() + ":" + xmlFormShortName);
              RecordSet set = pubTemplate.getRecordSet();

              if (!isCut) {
                set.copy(fromResourceReference, toResourceReference, toRecordset.getRecordTemplate(), null);
              } else {
                set.move(fromResourceReference, toResourceReference, toRecordset.getRecordTemplate());
              }
            }
          } catch (final PublicationTemplateException e) {
            SilverLogger.getLogger(this).warn(e);
          }
        }
      }

      @Override
      public void onSuccessful() throws Exception {
        super.onSuccessful();
        final AlbumMediaEventNotifier notifier = AlbumMediaEventNotifier.get();
        if (isCut) {
          for (final String albumIdForDeletion : albumIdsForDeletion) {
            notifier.notifyEventOn(ResourceEvent.Type.DELETION,
                new AlbumMedia(albumIdForDeletion, mediaBeforeChanges));
          }
        }
        notifier.notifyEventOn(ResourceEvent.Type.CREATION, new AlbumMedia(albumId, getMedia()));
      }
    }