/*
  fm - File management class library
  Copyright (C) 2024  Ulrich Hilger

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as
  published by the Free Software Foundation, either version 3 of the
  License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package de.uhilger.fm;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

/**
 *
 * @author Ulrich Hilger
 * @version 0.1, 08.11.2024
 */
public class Duplicator {
  
  public String duplizieren(String base, String relPfad) throws IOException {
    File srcFile = new File(base, relPfad);
    String fnameext = srcFile.getName();
    int dotpos = fnameext.lastIndexOf(".");
    String fname = fnameext.substring(0, dotpos);
    String ext = fnameext.substring(dotpos);
    File srcDir = srcFile.getParentFile();
    File destFile = new File(srcDir, fname + "-Kopie" + ext);
    int i = 1;
    while (destFile.exists()) {
      destFile = new File(srcDir, fname + "-Kopie-" + Integer.toString(++i) + ext);
    }
    Files.copy(srcFile.toPath(), destFile.toPath());
    return destFile.getName();
  }

}