/*
    * #%L
    * wcm.io
    * %%
    * Copyright (C) 2025 wcm.io
    * %%
    * Licensed 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.
   * #L%
   */
  package io.wcm.wcm.ui.granite.util.impl;
  
  import org.apache.commons.collections4.Predicate;
  import org.apache.sling.api.resource.Resource;
  import org.jetbrains.annotations.NotNull;
  import org.jetbrains.annotations.Nullable;
  import org.osgi.framework.BundleContext;
  import org.osgi.framework.ServiceReference;
  
  /**
   * Wrapper for latest PredicateProvider implementation that returns java.util.function.Predicate.
   */
  class LatestPredicateProviderWrapper extends AbstractPredicateProviderWrapper {
  
    private static final String NODE_PREDICATE_INTERFACE = "com.day.cq.commons.predicates.NodePredicate";
  
    LatestPredicateProviderWrapper(ServiceReference<?> serviceReference, BundleContext bundleContext) {
      super(serviceReference, bundleContext);
    }
  
    @SuppressWarnings("unchecked")
    @Override
    public @Nullable Predicate<Resource> getPredicate(@NotNull String name) {
      java.util.function.Predicate<Resource> predicate = (java.util.function.Predicate)getPredicateInternal(name);
      if (predicate == null) {
        return null;
      }
      if (isNodePredicate(predicate)) {
        return new NodePredicateWrapper((java.util.function.Predicate)predicate)::test;
      }
      return predicate::test;
    }
  
    /**
     * Checks if the given predicate implementation implements the NodePredicate interface.
     * @param obj Predicate implementation
     * @return true if NodePredicate
     */
    private static boolean isNodePredicate(Object obj) {
      for (Class<?> intf : obj.getClass().getInterfaces()) {
        if (NODE_PREDICATE_INTERFACE.equals(intf.getName())) {
          return true;
        }
      }
      return false;
    }
  
  }