# InfoLetterContentManager.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:
     * "https://www.silverpeas.org/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.infoletter;

    import jakarta.inject.Inject;
    import org.silverpeas.components.infoletter.model.InfoLetterPublicationPdC;
    import org.silverpeas.components.infoletter.service.InfoLetterContributionLocator;
    import org.silverpeas.core.ResourceReference;
    import org.silverpeas.core.annotation.Service;
    import org.silverpeas.core.contribution.contentcontainer.content.AbstractSilverpeasContentManager;
    import org.silverpeas.core.contribution.contentcontainer.content.SilverContentVisibility;
    import org.silverpeas.core.contribution.model.Contribution;
    import org.silverpeas.core.contribution.model.ContributionIdentifier;
    import org.silverpeas.kernel.annotation.NonNull;

    import java.util.List;
    import java.util.Optional;
    import java.util.stream.Collectors;

    import static org.silverpeas.components.infoletter.model.InfoLetterPublication.PUBLICATION_VALIDEE;

    /**
     * The infoletter implementation of SilverpeasContentManager.
     */
    @Service
    public class InfoLetterContentManager extends AbstractSilverpeasContentManager {

      private static final String CONTENT_ICON_FILE_NAME = "infoLetterSmall.gif";

      @Inject
      private InfoLetterContributionLocator locator;

      /**
       * Hidden constructor as this implementation must be GET by CDI mechanism.
       */
      protected InfoLetterContentManager() {
      }

      @Override
      protected String getContentIconFileName(final String componentInstanceId) {
        return CONTENT_ICON_FILE_NAME;
      }

      @Override
      protected Optional<Contribution> getContribution(final String resourceId,
          final String componentInstanceId) {
        return Optional.of(getInfoLetterPublicationPdC(resourceId, componentInstanceId));
      }

      @Override
      protected List<Contribution> getAccessibleContributions(
          final List<ResourceReference> resourceReferences, final String currentUserId) {
        return resourceReferences.stream()
            .map(r -> getInfoLetterPublicationPdC(r.getLocalId(), r.getComponentInstanceId()))
            .collect(Collectors.toList());
      }

      @Override
      protected <T extends Contribution> SilverContentVisibility computeSilverContentVisibility(
          @NonNull final T contribution) {
        final InfoLetterPublicationPdC ilPub = (InfoLetterPublicationPdC) contribution;
        return new SilverContentVisibility(isVisible(ilPub));
      }

      private boolean isVisible(InfoLetterPublicationPdC ilPub) {
        return ilPub.getPublicationState() == PUBLICATION_VALIDEE;
      }

      /**
       * Gets a publication from info letter.
       * @param resourceId a publication identifier
       * @param componentId the id of the instance
       * @return a list of publicationDetail
       */
      private Contribution getInfoLetterPublicationPdC(String resourceId, String componentId) {
        return locator.getInfoLetterContribution(ContributionIdentifier.from(componentId, resourceId,
            InfoLetterPublicationPdC.TYPE));
      }
    }