package org.openslx.util.vm;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.List;

import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.openslx.bwlp.thrift.iface.OperatingSystem;
import org.openslx.bwlp.thrift.iface.Virtualizer;

public class VboxMetaData extends VmMetaData
{
	private static final Virtualizer virtualizer = new Virtualizer( "virtualbox", "VirtualBox" );

	private final VboxConfig config;

	public VboxMetaData( List<OperatingSystem> osList, File file ) throws IOException, UnsupportedVirtualizerFormatException
	{
		super( osList );

		this.config = new VboxConfig( file );

		init();
	}

	public VboxMetaData( List<OperatingSystem> osList, byte[] vmContent, int length ) throws IOException, UnsupportedVirtualizerFormatException
	{
		super( osList );
		this.config = new VboxConfig( vmContent.toString(), length );
		
		init();
	}

	private void init()
	{
		this.config.init();

		displayName = config.getDisplayName();

		setOs( "virtualbox", config.getOsName() );

		for ( HardDisk hardDisk : config.getHdds() ) {
			hdds.add( hardDisk );
		}
		try {
			WriteToFile();
		} catch ( TransformerFactoryConfigurationError | TransformerException e ) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	// --TODO will be needed later again
	private void WriteToFile() throws TransformerFactoryConfigurationError, TransformerException
	{
		Transformer transformer = TransformerFactory.newInstance().newTransformer();
		StreamResult output = new StreamResult( new File( "output.xml" ) );
		Source input = new DOMSource( config.getConfigDoc() );
		transformer.transform( input, output );
	}

	@Override
	public Virtualizer getVirtualizer()
	{
		return new Virtualizer( "virtualbox", "VirtualBox" );
	}

	@Override
	public void enableUsb( boolean enabled )
	{
		// TODO Auto-generated method stub
	}

	@Override
	public void applySettingsForLocalEdit()
	{
		// TODO Auto-generated method stub
	}

	@Override
	public byte[] getFilteredDefinitionArray()
	{
		// TODO Auto-generated method stub
		return config.toString().getBytes( StandardCharsets.UTF_8 );
	}

	@Override
	public boolean addHddTemplate( String diskImagePath, String hddMode, String redoDir )
	{
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean addDefaultNat()
	{
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public void setOs( String vendorOsId )
	{
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean addDisplayName( String name )
	{
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean addRam( int mem )
	{
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public void addFloppy( int index, String image, boolean readOnly )
	{
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean addCdrom( String image )
	{
		// TODO Auto-generated method stub
		return false;
	}

	// TODO: the part after getting the byte[] from the Server and doing stuff with it...SoundCard types etc...
}