/*
    * 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.maven.api.feature;
  
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.maven.api.Constants;
  import org.apache.maven.api.annotations.Nullable;
  
  /**
   * Centralized class for Maven Core feature information.
   * Features configured are supposed to be final in a given maven session.
   *
   * @since 4.0.0
   */
  public final class Features {
  
      private Features() {}
  
      /**
       * Check if the personality is "maven3".
       */
      public static boolean mavenMaven3Personality(@Nullable Map<String, ?> userProperties) {
          return doGet(userProperties, Constants.MAVEN_MAVEN3_PERSONALITY, false);
      }
  
      /**
       * Check if the consumer POM feature is active.
       */
      public static boolean consumerPom(@Nullable Map<String, ?> userProperties) {
          return doGet(userProperties, Constants.MAVEN_CONSUMER_POM, !mavenMaven3Personality(userProperties));
      }
  
      /**
       * Check if consumer POM flattening is enabled.
       */
      public static boolean consumerPomFlatten(@Nullable Map<String, ?> userProperties) {
          return doGet(userProperties, Constants.MAVEN_CONSUMER_POM_FLATTEN, false);
      }
  
      private static boolean doGet(Properties userProperties, String key, boolean def) {
          return doGet(userProperties != null ? userProperties.get(key) : null, def);
      }
  
      private static boolean doGet(Map<String, ?> userProperties, String key, boolean def) {
          return doGet(userProperties != null ? userProperties.get(key) : null, def);
      }
  
      private static boolean doGet(Object val, boolean def) {
          if (val instanceof Boolean bool) {
              return bool;
          } else if (val != null) {
              return Boolean.parseBoolean(val.toString());
          } else {
              return def;
          }
      }
  }