// Copyright (c) 2010 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v5.5.2/Polyhedron/demo/Polyhedron/Plugins/Mesh_3/Optimizer_thread.h $
// $Id: Optimizer_thread.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s)     : Stephane Tayeb
//
//******************************************************************************
// File Description :
//******************************************************************************

#ifndef DEMO_MESH_3_OPTIMIZER_THREAD_H
#define DEMO_MESH_3_OPTIMIZER_THREAD_H

#include <QThread>
#include <QObject>
#include <QString>
#include <QStringList>
#include <QTimer>

#include <CGAL/Mesh_optimization_return_code.h>

class Scene_c3t3_item;

class Optimization_function_interface
{
public:
  virtual ~Optimization_function_interface() {}

  // Launch
  virtual CGAL::Mesh_optimization_return_code launch() = 0;

  // Stop
  virtual void stop() = 0;

  // Logs
  virtual QString name() const = 0;
  virtual QStringList parameters_log() const = 0;
  virtual QString status(double time_period) const = 0;
};


class Optimizer_thread : public QThread
{
  Q_OBJECT
public:
  Optimizer_thread(Optimization_function_interface* f, Scene_c3t3_item* item);
  virtual ~Optimizer_thread();

  // Scene item
  Scene_c3t3_item* item() const { return item_; }

  // Infos about optimization
  CGAL::Mesh_optimization_return_code return_code() const { return rc_; }
  double time() const { return time_; }

  // Logs
  QString optimizer_name() const { return f_->name(); }
  QStringList parameters_log() const { return f_->parameters_log(); }

public Q_SLOTS:
  // Stop
  void stop();

private Q_SLOTS:
  // emit signal status report
  void emit_status();

Q_SIGNALS:
  // Emitted at the end of the process
  void done(Optimizer_thread*);
  // Informs about status of the process
  void status_report(QString);

protected:
  // Overload of QThread function
  virtual void run();

private:
  Optimization_function_interface* f_;
  Scene_c3t3_item* item_;
  CGAL::Mesh_optimization_return_code rc_;
  double time_; // in seconds
  QTimer* timer_;
  double timer_period_;
};

#endif // DEMO_MESH_3_OPTIMIZER_THREAD_H
