/*
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2013 Blender Foundation.
 * All rights reserved.
 */

/** \file
 * \ingroup depsgraph
 */

#include "intern/debug/deg_debug.h"

#include "BLI_console.h"
#include "BLI_hash.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"

#include "PIL_time_utildefines.h"

#include "BKE_global.h"

namespace blender::deg {

DepsgraphDebug::DepsgraphDebug()
    : flags(G.debug), is_ever_evaluated(false), graph_evaluation_start_time_(0)
{
}

bool DepsgraphDebug::do_time_debug() const
{
  return ((G.debug & G_DEBUG_DEPSGRAPH_TIME) != 0);
}

void DepsgraphDebug::begin_graph_evaluation()
{
  if (!do_time_debug()) {
    return;
  }

  const double current_time = PIL_check_seconds_timer();

  if (is_ever_evaluated) {
    fps_samples_.add_sample(current_time - graph_evaluation_start_time_);
  }

  graph_evaluation_start_time_ = current_time;
}

void DepsgraphDebug::end_graph_evaluation()
{
  if (!do_time_debug()) {
    return;
  }

  const double graph_eval_end_time = PIL_check_seconds_timer();
  printf("Depsgraph updated in %f seconds.\n", graph_eval_end_time - graph_evaluation_start_time_);
  printf("Depsgraph evaluation FPS: %f\n", 1.0f / fps_samples_.get_averaged());

  is_ever_evaluated = true;
}

bool terminal_do_color()
{
  return (G.debug & G_DEBUG_DEPSGRAPH_PRETTY) != 0;
}

string color_for_pointer(const void *pointer)
{
  if (!terminal_do_color()) {
    return "";
  }
  int r, g, b;
  BLI_hash_pointer_to_color(pointer, &r, &g, &b);
  char buffer[64];
  BLI_snprintf(buffer, sizeof(buffer), TRUECOLOR_ANSI_COLOR_FORMAT, r, g, b);
  return string(buffer);
}

string color_end()
{
  if (!terminal_do_color()) {
    return "";
  }
  return string(TRUECOLOR_ANSI_COLOR_FINISH);
}

}  // namespace blender::deg