// JhashD Version 1.4 Revision II

#ifndef HASH_H
#define HASH_H

#include <iostream>
#include <string>
#include <cstdlib>
#include <cctype>
using namespace std;
string hash(string &);
string CharHash(char, int);

const int NUM_PADS_ONE = 3; // increase or decrease the padding before the
                            // first character

const int NUM_PADS_TWO = 5; // increase or decrease the padding of letters
                            // after the encrypted character

string hash(string& password)
{
    string TempStr;

    int PassLen = password.length();
    int asciiCount = 0;

    string* HashArray;
    HashArray = new string[password.length()]; // create an array to hold
                                               // each hashed character
    for (int index = 0; index < password.length(); index++)
        password[index] = toupper(password[index]); // make each non-uppercase
                                                    // letter uppercase


    for (int index = 0; index < password.length(); index++) // total up
                                                            // all the ascii
                                                            // variables
        if (password[index] != ' ')
             asciiCount += int(password[index]);

    srand(asciiCount); // Generates a new series of random numbers based on
                       // the total value of ascii characters in the password

    for (int index = 0; index < password.length(); index++)
        HashArray[index] = CharHash(password[index], PassLen);
        // dump each hash character into the pointer array

    for (int index = 0; index < password.length(); index++)
        TempStr += HashArray[index]; // copy the hashes to the string
        
    delete [] HashArray; // de-allocate the memory
        
    return TempStr;
}

string CharHash(char charact, int size)
{
       if (charact != ' ')

       {
           string Hash; // a variable to hold the hashes of the current character
           char ChRand = 65 + rand() % 26; // random letter between A to Z
    
           int NumTimes = 20 + rand() % (int(charact) + size);
                                                      // manipulate the random
                                                      // letter based on the ascii
                                                      // value of the current
                                                      // character plus the
                                                      // length of the password
    
           int CharRand = 1 + rand() % (int(charact) + size);
                                                      // Manipulate the character
                                                      // itself based on a random
                                                      // number decided by the
                                                      // ascii value of the
                                                      // character plus the
                                                      // length of the password
                                                      
           for (int index = 0; index < CharRand; index++)
           {
               if (charact == 'Z')
               {
                  charact = 'A';
                  continue;
               }
               if (charact == 'z')
               {
                  charact = 'a';
                  continue;
               }
               if (charact == '9')
               {
                  charact = '0';
                  continue;
               }
               charact++;
           }
    
           for (int index = 0; index < NUM_PADS_ONE; index++)
           {
    
               for (int index2 = 0; index2 < NumTimes; index2++)
               {
    
                   if (ChRand == 'Z')
                   {
                      ChRand = 'A';
                      continue;
                   }
                   if (ChRand == '9')
                   {
                      ChRand = '0';
                      continue;
                   }
                   ChRand++;
               }
    
               Hash += ChRand;
               ChRand = 65 + rand() % 26;
               NumTimes = 20 + rand() % (int(charact) + size);
           }
    
           Hash += charact;
    
           for (int index = 0; index < NUM_PADS_TWO; index++)
           {
               for (int index2 = 0; index2 < NumTimes; index2++)
               {
    
                   if (ChRand == 'Z')
                   {
                      ChRand = 'A';
                      continue;
                   }
                   if (ChRand == '9')
                   {
                      ChRand = '0';
                      continue;
                   }
                   ChRand++;
               }
               Hash += ChRand;
    
               ChRand = 65 + rand() % 26;
               NumTimes = 20 + rand() % (int(charact) + size);
           }
           return Hash;
       }
       else
           return ".........";
}

#endif