/*
    * 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.felix.bundleplugin;
  
  
  import java.io.FileOutputStream;
  import java.io.OutputStream;
  import java.util.Iterator;
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.shared.dependency.graph.DependencyNode;
  import org.codehaus.plexus.util.FileUtils;
  import org.codehaus.plexus.util.IOUtil;
  import org.codehaus.plexus.util.StringUtils;
  
  import aQute.bnd.osgi.Builder;
  import aQute.bnd.osgi.Jar;
  
  
  /**
   * Generate Ant script to create the bundle (you should run ant:ant first).
   *
   */
  @Mojo( name = "ant", requiresDependencyResolution = ResolutionScope.TEST )
  public class AntPlugin extends BundlePlugin
  {
      static final String BUILD_XML = "/build.xml";
      static final String BUILD_BND = "/maven-build.bnd";
  
  
      @Override
      protected void execute( MavenProject currentProject, DependencyNode dependencyGraph, Map<String, String> originalInstructions, Properties properties,
          Jar[] classpath ) throws MojoExecutionException
      {
          final String artifactId = getProject().getArtifactId();
          final String baseDir = getProject().getBasedir().getPath();
  
          try
          {
              // assemble bundle as usual, but don't save it - this way we have all the instructions we need
              Builder builder = buildOSGiBundle( currentProject,
                      dependencyGraph, originalInstructions, properties, classpath );
              Properties bndProperties = builder.getProperties();
  
              // cleanup and remove all non-strings from the builder properties
              for ( Iterator i = bndProperties.values().iterator(); i.hasNext(); )
              {
                  if ( !( i.next() instanceof String ) )
                  {
                      i.remove();
                  }
              }
  
              // save the BND generated bundle to the same output directory that maven uses
              bndProperties.setProperty( "-output", "${maven.build.dir}/${maven.build.finalName}.jar" );
  
              OutputStream out = new FileOutputStream( baseDir + BUILD_BND );
              bndProperties.store( out, " Merged BND Instructions" );
              IOUtil.close( out );
  
              // modify build template
              String buildXml = IOUtil.toString( getClass().getResourceAsStream( BUILD_XML ) );
              buildXml = StringUtils.replace( buildXml, "BND_VERSION", builder.getVersion() );
              buildXml = StringUtils.replace( buildXml, "ARTIFACT_ID", artifactId );
  
              FileUtils.fileWrite( baseDir + BUILD_XML, buildXml );
  
              // cleanup...
              builder.close();
          }
          catch ( Exception e )
          {
              throw new MojoExecutionException( "Problem creating Ant script", e );
          }
  
          getLog().info( "Wrote Ant bundle project for " + artifactId + " to " + baseDir );
      }
  }