package org.apache.maven.plugin.nar;

/*
 * 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 java.io.File;
import java.util.Iterator;
import java.util.List;

import net.sf.antcontrib.cpptasks.CCTask;
import net.sf.antcontrib.cpptasks.CUtil;
import net.sf.antcontrib.cpptasks.types.CommandLineArgument;
import net.sf.antcontrib.cpptasks.types.LibrarySet;
import net.sf.antcontrib.cpptasks.types.LinkerArgument;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;

/**
 * Java specifications for NAR
 * 
 * @author Mark Donszelmann
 */
public class Java
{

    /**
     * Add Java includes to includepath
     * 
     * @parameter expression="" default-value="false"
     * @required
     */
    private boolean include = false;

    /**
     * Java Include Paths, relative to a derived ${java.home}. Defaults to: "${java.home}/include" and
     * "${java.home}/include/<i>os-specific</i>".
     * 
     * @parameter expression=""
     */
    private List includePaths;

    /**
     * Add Java Runtime to linker
     * 
     * @parameter expression="" default-value="false"
     * @required
     */
    private boolean link = false;

    /**
     * Relative path from derived ${java.home} to the java runtime to link with Defaults to Architecture-OS-Linker
     * specific value. FIXME table missing
     * 
     * @parameter expression=""
     */
    private String runtimeDirectory;

    /**
     * Name of the runtime
     * 
     * @parameter expression="" default-value="jvm"
     */
    private String runtime = "jvm";

    private AbstractCompileMojo mojo;

    public Java()
    {
    }

    public final void setAbstractCompileMojo( AbstractCompileMojo mojo )
    {
        this.mojo = mojo;
    }

    public final void addIncludePaths( CCTask task, String outType )
        throws MojoFailureException, MojoExecutionException
    {
        if ( include || mojo.getJavah().getJniDirectory().exists() )
        {
            if ( includePaths != null )
            {
                for ( Iterator i = includePaths.iterator(); i.hasNext(); )
                {
                    String path = (String) i.next();
                    task.createIncludePath().setPath( new File( mojo.getJavaHome( mojo.getAOL() ), path ).getPath() );
                }
            }
            else
            {
                String prefix = mojo.getAOL().getKey() + ".java.";
                String includes = NarProperties.getInstance(mojo.getMavenProject()).getProperty( prefix + "include" );
                if ( includes != null )
                {
                    String[] path = includes.split( ";" );
                    for ( int i = 0; i < path.length; i++ )
                    {
                        task.createIncludePath().setPath(
                                                          new File( mojo.getJavaHome( mojo.getAOL() ), path[i] ).getPath() );
                    }
                }
            }
        }
    }

    public final void addRuntime( CCTask task, File javaHome, String os, String prefix )
        throws MojoFailureException
    {
        if ( link )
        {
            if ( os.equals( OS.MACOSX ) )
            {
                CommandLineArgument.LocationEnum end = new CommandLineArgument.LocationEnum();
                end.setValue( "end" );

                // add as argument rather than library to avoid argument quoting
                LinkerArgument framework = new LinkerArgument();
                framework.setValue( "-framework" );
                framework.setLocation( end );
                task.addConfiguredLinkerArg( framework );

                LinkerArgument javavm = new LinkerArgument();
                javavm.setValue( "JavaVM" );
                javavm.setLocation( end );
                task.addConfiguredLinkerArg( javavm );
            }
            else
            {
                if ( runtimeDirectory == null )
                {
                    runtimeDirectory = NarProperties.getInstance(mojo.getMavenProject()).getProperty( prefix + "runtimeDirectory" );
                    if ( runtimeDirectory == null )
                    {
                        throw new MojoFailureException( "NAR: Please specify a <RuntimeDirectory> as part of <Java>" );
                    }
                }
                mojo.getLog().debug( "Using Java Runtime Directory: " + runtimeDirectory );

                LibrarySet libset = new LibrarySet();
                libset.setProject( mojo.getAntProject() );
                libset.setLibs( new CUtil.StringArrayBuilder( runtime ) );
                libset.setDir( new File( javaHome, runtimeDirectory ) );
                task.addLibset( libset );
            }
        }
    }
}