package com.company;

import java.io.*;

public class Main {

    private static String DATAIN = "data/dirfrom";
    private static String DATATO = "data/dirto/";

    public static void main(String[] args) throws IOException {
        findDocuments(DATAIN, DATATO);
    }

    public static void findDocuments(String in, String out) throws IOException {
        File fin = new File(in);
        File fout = new File(out);

        File[] alldat = fin.listFiles(new FilenameFilter() {
            @Override
            public boolean accept(File dir, String name) {
                return name.endsWith(".xlsx") || name.endsWith(".doc");
            }
        });


        if (!fin.exists()) {
            System.out.println("ne postoi");
            return;
        }
        if (fout.exists()) {
            for (File f : fout.listFiles()) {
                f.delete();
            }
        }

        if (alldat.length > 0) {
            for (File f : alldat) {
                if (f.length() > 500000) {
                    moveFile(f, out+"//dokumenti");
                } else{
                    writeToDatabase(f,out+"//brisenje.txt");
                }
            }
        } else {
            System.out.println("Ne postoi nitu eden file so ekstenzija .xls ili .doc");
        }

    }

    private static void writeToDatabase(File f, String out) throws IOException {

        try(
                RandomAccessFile randomAccessFile = new RandomAccessFile(out,"rw");

        ){
            randomAccessFile.seek(0);
            randomAccessFile.writeUTF(f.getName());
            randomAccessFile.writeInt((int) (f.length() * 1000));

        }

    }



    public static boolean moveFile(File file, String newparent) {
        return moveFileandRename(file, newparent, file.getName());
    }

    public static boolean moveFileandRename(File file, String newParent, String newName) {
        File parent = new File(newParent);


        if (!parent.isDirectory()) {
            System.out.println("Ne Postoi PARENT!");
            return false;
        }

        File renamedfile = new File(parent, newName);

        if (renamedfile.exists()) {
            System.out.println("OVOJ FILE VEKE POSTOI");
            return false;
        }

        return file.renameTo(renamedfile);
    }
}