#pragma once

#include <AudioVideoManagement/ava_types.h>
#include <LtsWidgets/lts_abstract_table_model.h>
#include <boost/optional.hpp>


namespace AudioVideoManagement
{



class IntervalModel : public LtsWidgets::LtsAbstractTableModel<AvaTimelinePart>
{
  Q_OBJECT

public:
  enum Columns
  {
    Start = 0,
    End,
    Duration,
  };

  IntervalModel();
  QVariant data(const QModelIndex &index, int role) const override;

  void reset();

  bool isEmpty() const { return m_vecData.isEmpty(); }

  void setCurrentPosition(AvaTimePoint pos, bool forceSignal = false);
  boost::optional<AvaTimePoint> currentPosition() const { return m_currentPos; }

  

  const AvaTimelinePart &previousInterval() const;
  const AvaTimelinePart &nextInterval() const;

signals:
  

  void currentIntervalChanged(bool hasPreviousInterval, bool hasNextInterval, const QModelIndex &rowIndex);

public slots:
  void setTimezoneHoursOffset(int timezoneHoursOffset);

private:
  QString dateTimeToStringy(const QDateTime &dt) const;
  QString msecsSinceEpochToStringy(qint64 msecs) const;

  

  using HalfIndex = int;
  HalfIndex   intervalForPos(AvaTimePoint pos) const;

  boost::optional<AvaTimePoint>   m_currentPos;
  boost::optional<HalfIndex>      m_currentInterval;

  int m_timezoneHoursOffset = 0;
};

}