//This program is free software: you can redistribute it and/or modify it under the terms #of the GNU 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 General Public License for more details.
//You should have received a copy of the GNU General Public License along with this #program. If not, see <http://www.gnu.org/licenses/>
#include <stdio.h>
#include <string>
#include <QString>
#include <QDebug>

using namespace std;

typedef struct {

    QString hex;
    QString bin;

}representacion;


static representacion repre[16]={{"0","0000"},{"1","0001"},{"2","0010"},{"3","0011"},
                                 {"4","0100"},{"5","0101"},{"6","0110"},{"7","0111"},
                                 {"8","1000"},{"9","1001"},{"A","1010"},{"B","1011"},
                                 {"C","1100"},{"D","1101"},{"E","1110"},{"F","1111"},};


char auxHexToAscii(char first, char second)
{
        char hex[5], *stop;
        hex[0] = '0';
        hex[1] = 'x';
        hex[2] = first;
        hex[3] = second;
        hex[4] = 0;
        return strtol(hex, &stop, 16);
}

QString HexToBinary(QString &cadena){


    QString devolver="";
    QString espacio=" ";
    for(int i=0; i<cadena.size(); i++)
    {
        QString letra="";
        letra+=cadena[i];
        for(int j=0;j<16;j++){

            if(letra.toStdString()==repre[j].hex.toStdString()){

                representacion r=repre[j];
                devolver += r.bin + espacio;
            }

        }

    }

    return devolver;

}

QString BinaryToHex(QString &cadena){


    QString devolver="";
    QString sinEspacios="";
    QString espacio=" ";

    for(int i=0; i<cadena.size(); i++)
    {


        QString letra="";
        letra+=cadena[i];
        if(letra!=" "){

            sinEspacios+=cadena[i];

        }
    }
    //qDebug() << sinEspacios;
    //system("pause");
    for(int i=0; i<sinEspacios.size(); i+=4)
    {

        QString parcial="";
        parcial+=sinEspacios[i];parcial+=sinEspacios[i+1];parcial+=sinEspacios[i+2];parcial+=sinEspacios[i+3];
        //qDebug() << "parcial numero " << i << "=" << parcial;
        //system("pause");


        for(int j=0;j<16;j++)
        {

            if(parcial.toStdString()==repre[j].bin.toStdString()){

                representacion r=repre[j];
                devolver += r.hex + espacio;
            }

        }
    }
    QString devolver2="";
    int numeroEspacios=0;
    for(int i=0; i<devolver.size(); i++)
    {

        QString letra="";
        letra+=devolver[i];
        if(letra!=" "){
            devolver2+=letra;

            }
        else {
            numeroEspacios++;
            if(numeroEspacios%2==0)
                devolver2+=letra;
            }

    }
    return devolver2;

}

QString HexToAscii(QString &cadena){

    QString devolver="";

    for(int i=0; i<cadena.size(); i=i+3)
    {
        QString aux1="";
        aux1+=cadena[i];

        QString aux2="";
        aux2+=cadena[i+1];
        char primero=(strdup(aux1.toStdString().c_str()))[0];
        char segundo=(strdup(aux2.toStdString().c_str()))[0];
        char caracter=auxHexToAscii(primero, segundo);
        QString Qcaracter(caracter);
        devolver += Qcaracter;

    }

    return devolver;

}