/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2025 Frederik Heber. All rights reserved.
 *
 *
 *   This file is part of MoleCuilder.
 *
 *    MoleCuilder 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.
 *
 *    MoleCuilder 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 MoleCuilder.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * ObservedMaximumAtomTrajectorySize.cpp
 *
 *  Created on: Nov 10, 2025
 *      Author: heber
 */


// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "ObservedMaximumAtomTrajectorySize.hpp"

//#include "CodePatterns/MemDebug.hpp"

#include "CodePatterns/Assert.hpp"
#include "CodePatterns/Log.hpp"
#include "CodePatterns/Observer/Channels.hpp"
#include "CodePatterns/Observer/Notification.hpp"
#include "CodePatterns/Singleton_impl.hpp"

#include "Atom/atom.hpp"
#include "Atom/AtomObserver.hpp"

ObservedMaximumAtomTrajectorySize::ObservedMaximumAtomTrajectorySize() :
    Observable("ObservedMaximumAtomTrajectorySize", NotificationType_MAX),
    maximumAtomTrajectorySize(0),
    atomObserver_signedOn(false)
{
  AtomObserver::getInstance().signOn(this, AtomObservable::TrajectoryChanged);
  atomObserver_signedOn = true;
}

ObservedMaximumAtomTrajectorySize::~ObservedMaximumAtomTrajectorySize() 
{
  if (atomObserver_signedOn) {
    AtomObserver::getInstance().signOff(this, AtomObservable::TrajectoryChanged);
  }
}

const int ObservedMaximumAtomTrajectorySize::GetMaximumAtomTrajectorySize() const
{
    return maximumAtomTrajectorySize;
}

void ObservedMaximumAtomTrajectorySize::update(Observable *publisher) 
{
  ASSERT(0, "ObservedMaximumAtomTrajectorySize::update() - we are not subscribed to general updates.");
}

void ObservedMaximumAtomTrajectorySize::subjectKilled(Observable *publisher) 
{
  if (static_cast<AtomObserver *>(publisher) == AtomObserver::getPointer()) {
    atomObserver_signedOn = false;
  }
}

void ObservedMaximumAtomTrajectorySize::recieveNotification(Observable *publisher, Notification_ptr notification) 
{

  const atom *walker = dynamic_cast<const atom *>(publisher);
  if (walker != NULL) {
    switch (notification->getChannelNo()) {
      case AtomObservable::TrajectoryChanged:
      {
        OBSERVE;
        NOTIFY(MaximumChanged);
        LOG(3, "DEBUG: ObservedMaximumAtomTrajectorySize got TrajectoryChanged for atom " << walker->getId());
        maximumAtomTrajectorySize = walker->getTrajectorySize()-1;
        break;
      }
      default:
      {
        ASSERT(0, "ObservedMaximumAtomTrajectorySize::recieveNotification() - received unsubscribed notification channel.");
        break;
      }
    }
  } else {
      ASSERT(0, "ObservedMaximumAtomTrajectorySize::recieveNotification() - received notification from unsubscribed source.");
  }
}

CONSTRUCT_SINGLETON(ObservedMaximumAtomTrajectorySize)