#include <iostream>
#include <windows.h>
#include <vector>
#include <string>
#include <sstream>
 
using namespace std;
 
vector<string> AddNumbers(vector<string> vector){
	vector.push_back("cml29");
	vector.push_back("mpdo1");
	vector.push_back("cp3p");
	vector.push_back("maT4");
	vector.push_back("88gk");
	vector.push_back("29f");
	vector.push_back("9fff");
	vector.push_back("fj239");
	vector.push_back("fj33f");
	vector.push_back("f888");
	vector.push_back("45fc");
	vector.push_back("d892");
	vector.push_back("cronq");
	vector.push_back("you");
	vector.push_back("llnever");
	vector.push_back("know");
	vector.push_back("this");
	vector.push_back("encr");
	vector.push_back("ipta");
	vector.push_back("tion");
	vector.push_back("lol");
	vector.push_back("rf8");
	vector.push_back("l28");
	vector.push_back("66");
	vector.push_back("d6");
	vector.push_back("e79d");
	vector.push_back("49jf");
	return vector;
}
vector<string> AddLetters(vector<string> vector){
	vector.push_back("a");
	vector.push_back("b");
	vector.push_back("c");
	vector.push_back("d");
	vector.push_back("e");
	vector.push_back("f");
	vector.push_back("g");
	vector.push_back("h");
	vector.push_back("i");
	vector.push_back("j");
	vector.push_back("k");
	vector.push_back("l");
	vector.push_back("m");
	vector.push_back("n");
	vector.push_back("o");
	vector.push_back("p");
	vector.push_back("q");
	vector.push_back("r");
	vector.push_back("s");
	vector.push_back("t");
	vector.push_back("u");
	vector.push_back("v");
	vector.push_back("w");
	vector.push_back("x");
	vector.push_back("y");
	vector.push_back("z");
	vector.push_back(" ");
 
	return vector;
	}
 
class CODSYS{
public:
	vector<string> abc;
	vector<string> nums;
 
	CODSYS(){
		abc = AddLetters(abc);
		nums = AddNumbers(nums);
	}
};
 
vector<string> PartirString(string a){
	vector<string> vector;
    string word;
    stringstream stream(a);
    while( getline(stream, word, 'x'))
		vector.push_back(word);
 
	return vector;
}
 
string descifrar(string a){
	CODSYS *dat = new CODSYS;
	vector<string> numeros;
//	vector<string>::iterator it;
	string numeroactual;
	string descifrado;
 
	numeros = PartirString(a); // Se eliminan las "x" y se guarda cada número como un elemento del vector.
 
	for(unsigned int i = 0; i < numeros.size(); i++){
		numeroactual = numeros[i];
		for(unsigned int z = 0; z < dat->nums.size(); z++){
			if(numeroactual == dat->nums[z]){
				descifrado += dat->abc[z];
				break;
			}
		}
	}
	delete dat;
 
	return descifrado;
}
 
string cifrar(string a){
	CODSYS *dat = new CODSYS;
	string letraactual;
	string cifrado;
 
	for(unsigned int i = 0; i < a.length(); i++){
		letraactual = a[i];
			for(unsigned int z = 0; z < dat->abc.size(); z++){
				if(letraactual == dat->abc[z]){
					cifrado += dat->nums[z];
					cifrado += "x";
				}
			}
	}
	delete dat;
 
	return cifrado;
}
 
void EncMain(){
	system("cls");
	string cadena;
 
	cout << "Ingresa una Cadena para encriptarla:\n";
	getline(cin, cadena);
 
	cout << "\n\n= " << cifrar(cadena) << "\n\n" ;
 
	system("PAUSE");
	system("CLS");
}
 
void DesencMain(){
	system("cls");
	string cadena;
 
	cout << "Ingresa una Cadena para desencriptarla:\n";
	getline(cin, cadena);
 
	cout << "\n\n= " << descifrar(cadena) << "\n\n";
 
	system("PAUSE");
	system("CLS");
}
 
int main(int argc, char *argv[]){
while(true){
	string dec;
r:
	cout << "==> Encriptador por mastersuv v0.1 <==\n\n";
	cout << "---- Selecciona una opcion: ----\n";
	cout << "||                            ||\n";
	cout << "|| 1. cifrar una Cadena    ||\n";
	cout << "|| 2. descifrar una Cadena ||\n";
	cout << "||                            ||\n";
	cout << "--------------------------------\n\n> ";
 
	getline(cin, dec);
 
	for(unsigned int i = 0; i < dec.length(); i++){
		if(!isdigit(dec[i])){
			MessageBoxA(NULL, "Ingrese solo numeros!", "Error!", MB_OK);
			system("CLS");
			goto r;
			break;
		}
		else if((dec > "2" || dec < "1")){
			MessageBoxA(NULL, "Opción inválida", "Error!", MB_OK);
			system("CLS");
			goto r;
			break;
		}
		else{ continue; }
	}
 
	if(dec == "1"){
		EncMain();
	}
	else if(dec == "2"){
		DesencMain();
	}
}
	return 0;
}