package org.apache.maven.model.path;
   
   /*
    * 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.
   */
  
  import org.apache.maven.api.model.ActivationFile;
  import org.apache.maven.model.profile.ProfileActivationContext;
  import org.codehaus.plexus.interpolation.AbstractValueSource;
  import org.codehaus.plexus.interpolation.InterpolationException;
  import org.codehaus.plexus.interpolation.MapBasedValueSource;
  import org.codehaus.plexus.interpolation.RegexBasedInterpolator;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  import java.io.File;
  
  /**
   * Finds an absolute path for {@link ActivationFile#getExists()} or {@link ActivationFile#getMissing()}
   *
   * @author Ravil Galeyev
   */
  @Named
  @Singleton
  public class ProfileActivationFilePathInterpolator
  {
  
      private final PathTranslator pathTranslator;
  
      @Inject
      public ProfileActivationFilePathInterpolator( PathTranslator pathTranslator )
      {
          this.pathTranslator = pathTranslator;
      }
  
      /**
       * Interpolates given {@code path}.
       *
       * @return absolute path or {@code null} if the input was {@code null}
       */
      public String interpolate( String path, ProfileActivationContext context ) throws InterpolationException
      {
          if ( path == null )
          {
              return null;
          }
  
          RegexBasedInterpolator interpolator = new RegexBasedInterpolator();
  
          final File basedir = context.getProjectDirectory();
  
          if ( basedir != null )
          {
              interpolator.addValueSource( new AbstractValueSource( false )
              {
                  @Override
                  public Object getValue( String expression )
                  {
                      /*
                       * We intentionally only support ${basedir} and not ${project.basedir} as the latter form
                       * would suggest that other project.* expressions can be used which is beyond the design.
                       */
                      if ( "basedir".equals( expression ) )
                      {
                          return basedir.getAbsolutePath();
                      }
                      return null;
                  }
              } );
          }
          else if ( path.contains( "${basedir}" ) )
          {
              return null;
          }
  
          interpolator.addValueSource( new MapBasedValueSource( context.getProjectProperties() ) );
  
          interpolator.addValueSource( new MapBasedValueSource( context.getUserProperties() ) );
  
          interpolator.addValueSource( new MapBasedValueSource( context.getSystemProperties() ) );
  
          String absolutePath = interpolator.interpolate( path, "" );
  
         return pathTranslator.alignToBaseDirectory( absolutePath, basedir );
     }
 }