package hr.fer.oop.lab4.second;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.nio.file.FileVisitResult;
import java.nio.file.FileVisitor;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.StandardOpenOption;
import java.nio.file.attribute.BasicFileAttributes;

import hr.fer.oop.lab4.first.a.MyByteWriter;

public class Prepisi extends SimpleFileVisitor<Path> {

	public static void main(String[] args) {

		FileVisitor<Path> pr = new Prepisi();
		FileVisitor<Path> visitor = new MySecondByteReader();

		Path racunip = Paths.get("racuni-privremeno");
		Path racuni = Paths.get("racuni");


		try{
			Files.walkFileTree(racuni, visitor);
			System.out.println("PRIJE : ");
			System.out.println("Broj racuna: " + ((MySecondByteReader) visitor).getbrracuna());
			System.out.println("Ukupno: " + ((MySecondByteReader) visitor).getukupno());
			((MySecondByteReader) visitor).set();

			Files.walkFileTree(racunip, visitor);
			System.out.println("PRIVREMENI: ");
			System.out.println("Broj racuna: " + ((MySecondByteReader) visitor).getbrracuna());
			System.out.println("Ukupno: " + ((MySecondByteReader) visitor).getukupno());
			((MySecondByteReader) visitor).set();

			Files.walkFileTree(racunip, pr);

			Files.walkFileTree(racuni, visitor);
			System.out.println("NAKON: ");
			System.out.println("Broj racuna: " + ((MySecondByteReader) visitor).getbrracuna());
			System.out.println("Ukupno: " + ((MySecondByteReader) visitor).getukupno());


		}catch(Exception e){
			e.printStackTrace();
		}
	}




	@Override
	public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
		if(file.toString().endsWith("txt")){


			File destionation = new File(getFileName(file.toFile().getAbsolutePath()));



			try(InputStream is= Files.newInputStream(file, StandardOpenOption.READ)){
				MyByteWriter rewriter = new MyByteWriter(is,destionation.toPath());
				rewriter.run();
			} catch (IOException e) {
				e.printStackTrace();
			}

		}
		return FileVisitResult.CONTINUE;
	}



	public String getFileName(String source){
		StringBuilder name = new StringBuilder();


		String[] partss = source.split("\\\\");
		source = partss[5];
		String[] parts = source.split("_");


		name.append("racuni/").append(parts[2]).append("/").append(parts[3].split("\\.")[0]).append(source);



		return name.toString();
	}


}