/**
  * @RDE_HEADER@
  * ActiveExerciseWithRadioGroup
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Fröbel, NLSE, 2018-02-16
  */

#pragma once

#include <QObject>
#include <vector>


namespace AudioVideoManagement
{

class ExercisesHandler;
class ExerciseContext;

/**
 * The ExercisesHandler emits a signal whenever an Exercise gets activated (or deactivated).
 * (See there for what "activated" means).
 *
 * @see TvcHandler
 * @see CnrHandler
 * @see ExercisesHandler
 * @author Christian Fröbel
 */
class ActiveExercises : public QObject
{
  Q_OBJECT

public:
  explicit ActiveExercises(ExercisesHandler *exercisesHandler);
  ~ActiveExercises() override;

  /** Return all active Contexts. */
  const std::vector<ExerciseContext> &allContexts() const;
  int count() const { return m_activeExercises.size(); }

  bool   isActive(const ExerciseContext &context) const;

signals:
  /** Signalled when the Exercise is active. */
  void contextActivated(const ExerciseContext &context);
  void contextDeactivated(const ExerciseContext &context);

private slots:
  void onContextActivated(const ExerciseContext &context);
  void onContextDeactivated(const ExerciseContext &context);

private:
  std::vector<ExerciseContext>   m_activeExercises;
};

} // namespace AudioVideoManagement