/*
    * 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.model.transform;
  
  import java.util.List;
  import java.util.function.Function;
  import org.apache.maven.model.transform.pull.NodeBufferingParser;
  import org.codehaus.plexus.util.xml.pull.XmlPullParser;
  
  /**
   * Resolves all ci-friendly properties occurrences between version-tags
   *
   * @author Robert Scholte
   * @author Guillaume Nodet
   * @since 4.0.0
   */
  class CiFriendlyXMLFilter extends NodeBufferingParser {
      private final boolean replace;
  
      private Function<String, String> replaceChain = Function.identity();
  
      CiFriendlyXMLFilter(XmlPullParser xmlPullParser, boolean replace) {
          super(xmlPullParser, "version");
          this.replace = replace;
      }
  
      public CiFriendlyXMLFilter setChangelist(String changelist) {
          replaceChain = replaceChain.andThen(t -> t.replace("${changelist}", changelist));
          return this;
      }
  
      public CiFriendlyXMLFilter setRevision(String revision) {
          replaceChain = replaceChain.andThen(t -> t.replace("${revision}", revision));
          return this;
      }
  
      public CiFriendlyXMLFilter setSha1(String sha1) {
          replaceChain = replaceChain.andThen(t -> t.replace("${sha1}", sha1));
          return this;
      }
  
      /**
       * @return {@code true} is any of the ci properties is set, otherwise {@code false}
       */
      public boolean isSet() {
          return !replaceChain.equals(Function.identity());
      }
  
      @Override
      protected void process(List<Event> buffer) {
          for (Event event : buffer) {
              if (event.event == TEXT && replace && event.text.contains("${")) {
                  event.text = replaceChain.apply(event.text);
              }
              pushEvent(event);
          }
      }
  }