/*
 * 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.scheduleevent.servlets.handlers;

import org.silverpeas.components.scheduleevent.control.ScheduleEventSessionController;
import org.silverpeas.components.scheduleevent.service.model.beans.ScheduleEvent;
import org.silverpeas.core.importexport.ExportException;
import org.silverpeas.core.util.file.FileServerUtils;
import org.silverpeas.kernel.SilverpeasException;
import org.silverpeas.kernel.logging.SilverLogger;

import jakarta.servlet.http.HttpServletRequest;

public class ScheduleEventExportRequestHandler implements ScheduleEventRequestHandler {
  private final String jspDestination;

  public ScheduleEventExportRequestHandler(String jspDestination) {
    this.jspDestination = jspDestination;
  }

  @Override
  public String getDestination(String function, ScheduleEventSessionController scheduleeventSC,
      HttpServletRequest request) throws SilverpeasException {

    ScheduleEvent event = scheduleeventSC.getCurrentScheduleEvent();
    if (event != null) {
      try {
        String icsFile = scheduleeventSC.exportToICal(event);
        request.setAttribute("messageKey", "scheduleevent.export.ical.success");
        request.setAttribute("icsName", icsFile);
        request.setAttribute("icsURL", FileServerUtils.getUrlToTempDir(icsFile));
      } catch (ExportException ex) {
        SilverLogger.getLogger(this).error(ex);
        request.setAttribute("messageKey", "scheduleevent.export.ical.failure");
      }
      return this.jspDestination;
    }

    // error page
    throw new ExportException("No current event ");
  }
}
