package JavaIO;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;

public class Juni2014 {

	public static void manage (String in,String out) throws IOException {

		File sourceFolder = new File(in);
		File destinationFolder = new File(out);

		if (!sourceFolder.exists()) {
			System.out.println("Ne postoi" + in);
		}
		else {
			if(!sourceFolder.isDirectory()) {
				System.out.println(in + "Ne e direktorium");
			} else {
				if(destinationFolder.exists())
				{
					if(destinationFolder.isDirectory()) {
						File[] lista = destinationFolder.listFiles();
						for (File fajl : lista)
							fajl.delete();

					} else {
						System.out.println(out + "Ne e direktorium");
						return;
					}
				}
				else
					destinationFolder.mkdirs();

				File[] lista = sourceFolder.listFiles();

				for (File f : lista) {

					if(f.getName().endsWith(".dat")) {

						if(f.isHidden()) {
							f.delete();
							System.out.println("Zbunet sum " + f.getAbsolutePath());
						} else {
							if(f.canWrite()) {
								System.out.println("Pomestuvam " + f.getAbsolutePath());
								f.renameTo(new File(destinationFolder,f.getName()));
							}

							else {
								File zaPisuvanje = new File("resources/writible-content.txt");
								readFromSourceAppendToDestination(f,zaPisuvanje);
								System.out.println("Dopisuvam " + f.getAbsolutePath());
							}
						}
					}
				}

			}
		}
	}

	private static void readFromSourceAppendToDestination(File source,File destination) throws IOException {
		// TODO Auto-generated method stub

		RandomAccessFile vlez = null;
		RandomAccessFile izlez = null;

		try {
			vlez = new RandomAccessFile(source,"r");
			izlez = new RandomAccessFile(destination, "rw");

			izlez.seek(izlez.length());

			int b;

			while ((b = vlez.read()) != -1)
				izlez.write(b);
		}
		finally {

			if(izlez != null){
				izlez.close();
			}
			if(vlez != null) {
				vlez.close();
			}
		}
	}

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
			manage("in","out");
	}

}