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.viewer.wicket.ui.pages.accmngt;
  
  import java.util.function.Consumer;
  
  import org.apache.wicket.util.cookies.CookieUtils;
  
  import org.jspecify.annotations.Nullable;
  
  import org.apache.causeway.commons.internal.base._Strings;
  import org.apache.causeway.commons.internal.functions._Functions;
  
  import org.jspecify.annotations.NonNull;
  import lombok.experimental.UtilityClass;
  
  @UtilityClass
  public class SuccessFeedbackCookieManager {
  
      /**
       * The name of a special cookie that is used as a temporary container for
       * stateless session scoped success feedback messages.
       */
      static final String FEEDBACK_COOKIE_NAME = "causeway.feedback.success";
  
      /**
       * Store a cookie with name {@value #FEEDBACK_COOKIE_NAME} that is
       * used as a temporary container for stateless session scoped success feedback
       * messages.
       */
      public static void storeSuccessFeedback(final @Nullable String successFeedback) {
          var cookieUtils = new CookieUtils();
          if (_Strings.isNotEmpty(successFeedback)) {
              cookieUtils.save(FEEDBACK_COOKIE_NAME, _Strings.base64UrlEncode(successFeedback));
          } else {
              // if successFeedback is empty we interpret that as a cookie remove request
              drainSuccessFeedback(_Functions.noopConsumer());
          }
  
      }
  
      /**
       * Checks for a cookie with name {@value #FEEDBACK_COOKIE_NAME} that is
       * used as a temporary container for stateless session scoped success feedback
       * messages.
       */
      public static void drainSuccessFeedback(final @NonNull Consumer<String> onSuccessFeedback) {
          var cookieUtils = new CookieUtils();
          final String successFeedback = cookieUtils.load(FEEDBACK_COOKIE_NAME);
          if (_Strings.isNotEmpty(successFeedback)) {
              onSuccessFeedback.accept(_Strings.base64UrlDecode(successFeedback));
          }
          cookieUtils.remove(FEEDBACK_COOKIE_NAME);
      }
  
  }
  