/*
 *  Copyright (c) 2013 Croatia Control Ltd. (www.crocontrol.hr)
 *
 *  This file is part of Asterix.
 *
 *  Asterix 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.
 *
 *  Asterix 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 Asterix.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * AUTHORS: Damir Salantic, Croatia Control Ltd.
 *
 */

#include "Tracer.h"
#include <stdio.h>
#include <iostream>
#include <stdarg.h>
#include <string.h>
using namespace std;

Tracer *Tracer::g_TracerInstance = NULL;

Tracer& Tracer::instance()
{
  if (!Tracer::g_TracerInstance)
  {
    Tracer::g_TracerInstance = new Tracer();
  }
  return *Tracer::g_TracerInstance;
}

Tracer::Tracer()
: pPrintFunc(NULL)
, pPrintFunc2(NULL)
{
}

void Tracer::Configure(ptExtPrintf pFunc)
{
  Tracer::instance().pPrintFunc = pFunc;
}

void Tracer::Configure(ptExtVoidPrintf pFunc)
{
  Tracer::instance().pPrintFunc2 = pFunc;
}

void Tracer::Delete()
{
	if (Tracer::g_TracerInstance)
		delete Tracer::g_TracerInstance;
	Tracer::g_TracerInstance = NULL;
}

void Tracer::Error(const char* format, ...)
{
  char buffer[1024];
  va_list args;
  va_start (args, format);
  vsnprintf (buffer, 1024, format, args);
  va_end (args);
  Tracer& instance = Tracer::instance();
  if (instance.pPrintFunc)
  {
    instance.pPrintFunc(buffer);
  }
  else if (instance.pPrintFunc2)
  {
    instance.pPrintFunc2(buffer);
  }
  else
  {
    puts(buffer);
  }
}
