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

#ifndef TELEGRAMBYLEO_SRC_BOTTONS_KEYBOARDBASE_MQH
#define TELEGRAMBYLEO_SRC_BOTTONS_KEYBOARDBASE_MQH

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

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
namespace TSN
{
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
#define TLGBYLEO_KEYBORAD_RESERVE(N) if(m_pos + (N) >= m_cap) { m_cap = (m_pos + (N)) << 1; ArrayResize(m_buf, m_cap, m_cap);  }

//---
struct TlgKeyboardSnapshot
 {
  int                pos;
  bool               in_row;
  bool               in_boton;
 };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
class CTlgKeyboardBase
 {
public:
  //---
  uchar              m_buf[];
  int                m_pos;

protected:
  //---
  int                m_cap;

  //---
  bool               m_in_row;
  bool               m_in_boton;

  //---
  void               AddRowImpl();
  void               EndRowImpl();

public:
                     CTlgKeyboardBase(uint initial_cap = 256);
                    ~CTlgKeyboardBase(void) {}

  //--- snapshot
  __forceinline void GetSnapshot(TlgKeyboardSnapshot& snap) const;
  __forceinline void ApplySnapshot(const TlgKeyboardSnapshot& snap);
 };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CTlgKeyboardBase::CTlgKeyboardBase(uint initial_cap)
  : m_cap((int)initial_cap), m_in_row(false), m_in_boton(false)
 {
  ArrayResize(m_buf, m_cap, m_cap);
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void CTlgKeyboardBase::AddRowImpl(void)
 {
//---
  TLGBYLEO_KEYBORAD_RESERVE(2)

//--- coma si ya hay una fila antes
  if(m_in_row)
    m_buf[m_pos++] = ',';

//---
  m_buf[m_pos++] = '[';
  m_in_row = true;
  m_in_boton = false;
 }

//+------------------------------------------------------------------+
void CTlgKeyboardBase::EndRowImpl(void)
 {
//---
  TLGBYLEO_KEYBORAD_RESERVE(1)
  m_buf[m_pos++] = ']';
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
__forceinline void CTlgKeyboardBase::GetSnapshot(TlgKeyboardSnapshot& snap) const
 {
  snap.pos = m_pos;
  snap.in_row = m_in_row;
  snap.in_boton = m_in_boton;
 }
__forceinline void CTlgKeyboardBase::ApplySnapshot(const TlgKeyboardSnapshot& snap)
 {
  m_pos = snap.pos;
  m_in_row = snap.in_row;
  m_in_boton = snap.in_boton;
 }

}
//+------------------------------------------------------------------+
#endif // TELEGRAMBYLEO_SRC_BOTTONS_KEYBOARDBASE_MQH