package org.openslx.satellitedaemon.filetransfer;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.apache.log4j.Logger;
import org.openslx.filetransfer.Uploader;
import org.openslx.imagemaster.thrift.iface.ImageData;
import org.openslx.imagemaster.thrift.iface.UploadInfos;
import org.openslx.satellitedaemon.Globals;
import org.openslx.satellitedaemon.db.DbImage;

public class FileUploadWorker implements Runnable {
	private static Logger log = Logger.getLogger(FileUploadWorker.class);

	@Override
	public void run() {
		while (true) {
			// This List contains all Images in the Database that should be
			// uploaded.
			List<DbImage> imageList = DbImage.getAllMarkedForUpload();
			log.info("imageList Contains " + imageList.size() + " items.");

			// Upload one Image after the other.
			for (DbImage image : imageList) {
				// TODO: still some fields for ImageData, which i can't fill
				// with info from DbImage.
				ImageData imDat = new ImageData(image.guid, image.rid,
						image.name, System.currentTimeMillis(),
						System.currentTimeMillis(), image.creator, "anyThing",
						true, false, "best", "theVeryBest", image.fileSize);

				// ImageData imDat = new ImageData(
				// UUID.randomUUID().toString(), image.rid,
				// image.name, System.currentTimeMillis(),
				// System.currentTimeMillis(), image.creator, "anyThing",
				// true, false, "best", "theVeryBest", image.fileSize );

				// uploadInfo and ThriftAuthentication
				String crcPath = image.path.concat(".crc");
				UploadInfos upInfos = ThriftConnection.getUploadInfos(imDat,
						crcPath);
				if (upInfos == null) {
					log.error("The UploadInfos returned by ThriftConnection Class are null");
					continue;
				}
				log.info("Got upInfos. Trying to create Uploader with token: "
						+ upInfos.token);

				// creating the uploader with the "context"-item.
				Uploader u;
				try {
					u = new Uploader(Globals.getMasterserverHost(),
							upInfos.port, Globals.getMasterServerSslContext());
				} catch (IOException e) {
					log.warn("Could not connect for uploading an image: "
							+ e.toString());
					continue;
				}
				u.sendToken(upInfos.token);

				log.info("upInfos.getMissingBlocks().size() = "
						+ upInfos.getMissingBlocks().size());
				long fileSize = new File(image.path).length();

				// continue sending Blocks until getMissingBlocks is empty.
				while (!upInfos.getMissingBlocks().isEmpty()) {
					List<Integer> blocks = upInfos.getMissingBlocks();
					log.info("Anzahl angeforderter Blöcke : " + blocks.size());
					log.info(blocks);
					for (int i = 0; i < blocks.size(); i++) {
						int startOffset = blocks.get(i) * Globals.BLOCKSIZE; // TODO:
																				// long
						int endOffset = startOffset + Globals.BLOCKSIZE;
						if (endOffset > fileSize)
							endOffset = (int) fileSize; // TODO: Long
						u.prepareSendRange(startOffset, endOffset);
						u.sendFile(image.path);
						log.info("Block number " + blocks.get(i) + " uploaded.");
					}
					upInfos = ThriftConnection.getUploadInfos(imDat);
				}
				u.close();
			}
			try {
				Thread.sleep(1 * 60 * 1000);
				// Thread.sleep( 1000 );
			} catch (InterruptedException e) {
				Thread.currentThread().interrupt();
				return;
			}
		}

	}
}