content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.extensions.fullcalendar.wkt.integration.fc.callback;
  
  import java.util.Map;
  
  import org.apache.wicket.request.handler.TextRequestHandler;
  
  import org.apache.causeway.extensions.fullcalendar.wkt.integration.fc.EventSource;
  
  public class GetEventsCallback extends AbstractCallback {
      private static final long serialVersionUID = 1L;
  
      private static final String SOURCE_ID = "sid";
  
  	public String getUrl(final EventSource source) {
  		return getUrl(Map.of(SOURCE_ID, source.getId()));
  	}
  
      @Override
      protected void respond() {
          var request = getCalendar().getRequest();
  
          var start = getCalendar().startInstant();
          var end = getCalendar().endInstant();
  
          var sid = request.getRequestParameters().getParameterValue(SOURCE_ID).toString();
          var eventSource = getCalendar().getEventSource(sid);
          var eventProvider = eventSource.getEventProvider();
          final String response = getCalendar().toJson(eventProvider.getEvents(start, end));
  
          getCalendar().getRequestCycle()
                  .scheduleRequestHandlerAfterCurrent(new TextRequestHandler("application/json", "UTF-8", response));
  
      }
  
  }
  