/*
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 */
package ent.utils;

import java.util.Scanner;

/**
 *
 * @author JUAN
 */
public class Util {

    public static String cfr(String inp, int n) {
        String abc = "abcdefghijklmnopqrstuvwxyz";
        char cif, sinCif;
        int posiAbc, posiCif;
        String out = "", aux;
        boolean may;

        for (int i = 0; i < inp.length(); i++) {
            may = false;
            sinCif = inp.charAt(i);
            if (Character.isUpperCase(sinCif)) {
                sinCif = Character.toLowerCase(sinCif);
                may = true;
            }
            posiAbc = abc.indexOf(sinCif);
            if (posiAbc == -1) {
                cif = sinCif;
            } else {
                posiCif = posiAbc + n;
                if (posiCif > 25) {
                    posiCif = posiCif % 26;
                } else if (posiCif < 0) {
                    posiCif = posiCif + 26;
                }
                cif = abc.charAt(posiCif);
            }
            if (may == true) {
                aux = String.valueOf(cif).toUpperCase();
            } else {
                aux = String.valueOf(cif);
            }
            out = out + aux;
        }

        return out;
    }

    public static int sacarDesplazamiento(Scanner scFile, String abc) {
        int desp = 0, n, max = -1, posi = 0;
        int[] ia = new int[26];
        String linea;
        char l;

        while (scFile.hasNextLine()) {
            linea = scFile.nextLine().toLowerCase();
            for (int i = 0; i < linea.length(); i++) {
                l = linea.charAt(i);
                n = abc.indexOf(l);
                if (n != -1) {
                    ia[n]++;
                }

            }

        }

        for (int i = 0; i < ia.length; i++) {
            if (ia[i] > max) {
                max = ia[i];
                posi = i;
            }
        }

        desp = 4 - posi;

        return desp;
    }

}