/**
  * @RDE_HEADER@
  * MVC model
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Mike Wille, SLSE, 2014-10-01
  */

#pragma once

#include "Event.h"
#include "Item.h"
#include <LtsTimelineClassic/ltstimelineclassic_export.h>

#include <QAbstractItemModel>
#include <NGLLogger/INGLLogger.h>


namespace LtsTimelineClassic
{

/**
 * @brief MVC model
 */
class LTSTIMELINECLASSIC_EXPORT AbstractTimelineModel : public QAbstractItemModel
{
  Q_OBJECT

public:
  explicit AbstractTimelineModel(/*bool getEventListsRecursive = true,*/ QObject *parent = nullptr);
  ~AbstractTimelineModel();

  void retranslate();

  /**
     * @brief returns the root item
     * @return root item
     */
  Item *getRootItem();

  Event *getEvent(int uniqueId); // WARNING: unique ids are not unique between events and markers.... grrr

  //void invalidateItemForEvent(int uniqueId);
  void invalidateTimeline();

  /**
     * @brief refreshes the model data, which triggers all views to refresh also
     */
  void refreshData();

  qint64 highestPositionedItem() const { return m_highestPositionedItem; }
  qint64 lowestPositionedItem() const { return m_lowestPositionedItem; }


protected:
  NGL::INGLLogger &m_logger;


protected:
  /**
     * @brief adds an event to the model
     * @param event event to add to item
     */
  void addEvent(Event *event);

  /**
     * @brief returns coherant data of row & column for the view
     * @param index row & column
     * @param role what kind of data is needed by the view
     * @return variable data
     */
  QVariant data(const QModelIndex &index, int role) const;

  /**
     * @brief flags of the coherant data of row & column has (what is allowed, what is not)
     * @param index row & column
     * @return flags
     */
  Qt::ItemFlags flags(const QModelIndex &index) const;

  /**
     * @brief returns the header text for the coherant column
     * @param section column
     * @param orientation use Qt::Horizontal
     * @param role what kind of data is needed by the view
     * @return variable data
     */
  QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;

  /**
     * @brief
     * @param index
     * @return
     */
  Item *itemFromIndex(const QModelIndex &idx) const;

  /**
     * @brief model internal method
     * @param row
     * @param column
     * @param parent
     * @return
     */
  QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;

  /**
     * @brief model internal method
     * @param index
     * @return
     */
  QModelIndex parent(const QModelIndex &index) const;

  /**
     * @brief model internal method
     * @param parent
     * @return
     */
  int rowCount(const QModelIndex &parent = QModelIndex()) const;

  /**
     * @brief model internal method
     * @param parent
     * @return
     */
  int columnCount(const QModelIndex &parent = QModelIndex()) const;


  virtual qint64 currentTime() const = 0;

  //ItemList m_itemList; NO: m_rootItem has children [a item list huh] // to keep scope to all items - especially for the EventFactory which can now add to all events
  qint64 m_highestPositionedItem;
  qint64 m_lowestPositionedItem;
  bool   m_getEventListsRecursive;
  Item  *m_rootItem;
  Item  *m_markersItem; // NOTE: autodeleted by m_rootItem on its deletion


signals:
  /**
     * @brief signals when event is right-clicked (was triggered by ActiveEvent)
     * @param position position of the mouse when right-clicked
     * @param affectedEvent event that was right-clicked
     */
  void signalContextMenu(const QPoint &position, Event *affectedEvent);

  /**
     * @brief signals that an event has been clicked (for use with standard-action) (was triggered by ActiveEvent)
     * @param affectedEvent event that was clicked
     */
  void signalClicked(Event *affectedEvent);


  void signalToolTip(const QPoint &p, Event *e);

};

} // namespace LtsTimelineClassic