//+------------------------------------------------------------------+
//|                                                          DER.mqh |
//|                                   Copyright 2026, Niquel Mendoza |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, Niquel Mendoza"
#property link      "https://www.mql5.com"
#property strict

#ifndef CRYPTOBYLEO_SRC_ASN1_MAIN_MQH
#define CRYPTOBYLEO_SRC_ASN1_MAIN_MQH

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
#include "Def.mqh"

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
namespace TSN
{
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
class CASN1Utils
 {
public:
                     CASN1Utils(void) {}
                    ~CASN1Utils(void) {}

  //---
  static int         ContentTotalBytes(int content_len, uchar& lenw);
 };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
// retonra el tamaño total
// lenw=byte luego del tag a escribir..
static int CASN1Utils::ContentTotalBytes(int content_len, uchar& lenw)
 {
  uchar count = 1;
  if(content_len > 127)
   {
    // en cuantos bytes reqeurrimos (extra)
    do
     {
      content_len >>= 8;
      count++;
     }
    while(content_len > 0);
    lenw = CBL_ASN1_MASK_BYTEALTO | count;
   }
  else
   {
    lenw = uchar(content_len);
   }
// tag + byteslen + contentlen
  return 1 + count + content_len;
 }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
// en caso este acitvo el alto long form (saltaomos el numero de bytes que menciona)
// de lo contraio solo saltmaos.. 1
#define CBL_ASN1_U_SALTAR_LEN(buf, r) \
 {                         \
  if((buf[r] & CBL_ASN1_MASK_BYTEALTO) != 0) \
    r += (buf[r] & CBL_ASN1_MASK_CLEAN_BYTEALTO);  \
  else                     \
    r++;                   \
 }


//+------------------------------------------------------------------+
#define CBL_ASN1_U_WRITELEN(buf, w, lenw, total) \
{                              \
  buf[w++] = lenw;             \
  if((lenw & CBL_ASN1_MASK_BYTEALTO) != 0) \
   {                           \
    lenw &= CBL_ASN1_MASK_CLEAN_BYTEALTO; \
    total -= 1 + lenw;         \
    do                         \
     {                         \
      buf[w++] = uchar(total); \
      total >>= 8;             \
     }                         \
     while(total > 0);         \
   }                           \
}


}
#endif // CRYPTOBYLEO_SRC_ASN1_MAIN_MQH
//+------------------------------------------------------------------+