/*
    * 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.plugin.internal;
  
  import javax.inject.Named;
  import javax.inject.Singleton;
  import org.apache.maven.plugin.descriptor.MojoDescriptor;
  import org.apache.maven.plugin.descriptor.Parameter;
  import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
  import org.codehaus.plexus.configuration.PlexusConfiguration;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Print warnings if read-only parameters of a plugin are used in configuration.
   *
   * @author Slawomir Jaranowski
   */
  @Named
  @Singleton
  public class ReadOnlyPluginParametersValidator extends AbstractMavenPluginParametersValidator {
      private static final Logger LOGGER = LoggerFactory.getLogger(ReadOnlyPluginParametersValidator.class);
  
      @Override
      protected Logger getLogger() {
          return LOGGER;
      }
  
      @Override
      protected String getParameterLogReason(Parameter parameter) {
          return "is read-only, must not be used in configuration";
      }
  
      @Override
      public void validate(
              MojoDescriptor mojoDescriptor,
              PlexusConfiguration pomConfiguration,
              ExpressionEvaluator expressionEvaluator) {
          if (!LOGGER.isWarnEnabled()) {
              return;
          }
  
          mojoDescriptor.getParameters().stream()
                  .filter(parameter -> !parameter.isEditable())
                  .forEach(parameter -> checkParameter(parameter, pomConfiguration, expressionEvaluator));
      }
  
      protected void checkParameter(
              Parameter parameter, PlexusConfiguration pomConfiguration, ExpressionEvaluator expressionEvaluator) {
          PlexusConfiguration config = pomConfiguration.getChild(parameter.getName(), false);
  
          if (isValueSet(config, expressionEvaluator)) {
              logParameter(parameter);
          }
      }
  }