package org.openslx.imagemaster.serverconnection;

import java.util.HashMap;
import java.util.List;

/**
 * Helper class for the ImageProcessor to know some things about the downloading client
 * 
 */
public class DownloadingClientInfos
{

	public final HashMap<String, ImageInfos> downloadingImages = new HashMap<>();

	DownloadingClientInfos()
	{
	}

	public void addDownload( String uuid, int port, List<Integer> list, String token )
	{
		downloadingImages.put( uuid, new ImageInfos( uuid, port, list, token ) );
	}

	public void removeDownload( String uuid )
	{
		downloadingImages.remove( uuid );
	}

	public boolean isDownloading( String uuid )
	{
		return downloadingImages.containsKey( uuid );
	}
	
	public boolean hasDownloads()
	{
		return (downloadingImages.size() > 0);
	}

	public List<Integer> getLastRequestedBlocks( String uuid )
	{
		if ( !downloadingImages.containsKey( uuid ) )
			return null;
		return downloadingImages.get( uuid ).lastRequestedBlocks;
	}

	public void requestBlocks( String uuid, List<Integer> list )
	{
		if ( !downloadingImages.containsKey( uuid ) )
			return;
		downloadingImages.get( uuid ).lastRequestedBlocks = list;
	}

	public String getToken( String uuid )
	{
		if ( !downloadingImages.containsKey( uuid ) )
			return null;
		return downloadingImages.get( uuid ).token;
	}

	public int getPort( String uuid )
	{
		return downloadingImages.get( uuid ).port;
	}
	
	class ImageInfos
	{

		public final String uuid;
		public final String token;
		public final int port;
		private List<Integer> lastRequestedBlocks;

		ImageInfos(String uuid, int port, List<Integer> list, String token)
		{
			this.uuid = uuid;
			this.lastRequestedBlocks = list;
			this.token = token;
			this.port = port;
		}
	}

}