/*
    * 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.profiles;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.Reader;
  import java.io.StringReader;
  import java.io.StringWriter;
  
  import org.apache.maven.profiles.io.xpp3.ProfilesXpp3Reader;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.interpolation.EnvarBasedValueSource;
  import org.codehaus.plexus.interpolation.RegexBasedInterpolator;
  import org.codehaus.plexus.logging.AbstractLogEnabled;
  import org.codehaus.plexus.util.IOUtil;
  import org.codehaus.plexus.util.ReaderFactory;
  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  
  /**
   * DefaultMavenProfilesBuilder
   */
  @Deprecated
  @Component(role = MavenProfilesBuilder.class)
  public class DefaultMavenProfilesBuilder extends AbstractLogEnabled implements MavenProfilesBuilder {
      private static final String PROFILES_XML_FILE = "profiles.xml";
  
      public ProfilesRoot buildProfiles(File basedir) throws IOException, XmlPullParserException {
          File profilesXml = new File(basedir, PROFILES_XML_FILE);
  
          ProfilesRoot profilesRoot = null;
  
          if (profilesXml.exists()) {
              ProfilesXpp3Reader reader = new ProfilesXpp3Reader();
              try (Reader profileReader = ReaderFactory.newXmlReader(profilesXml);
                      StringWriter sWriter = new StringWriter()) {
                  IOUtil.copy(profileReader, sWriter);
  
                  String rawInput = sWriter.toString();
  
                  try {
                      RegexBasedInterpolator interpolator = new RegexBasedInterpolator();
                      interpolator.addValueSource(new EnvarBasedValueSource());
  
                      rawInput = interpolator.interpolate(rawInput, "settings");
                  } catch (Exception e) {
                      getLogger()
                              .warn("Failed to initialize environment variable resolver. Skipping environment "
                                      + "substitution in " + PROFILES_XML_FILE + ".");
                      getLogger().debug("Failed to initialize envar resolver. Skipping resolution.", e);
                  }
  
                  StringReader sReader = new StringReader(rawInput);
  
                  profilesRoot = reader.read(sReader);
              }
          }
  
          return profilesRoot;
      }
  }