#pragma once

#include "lts_widgets_export.h"

#include <QWidget>
#include <QVector>
#include <QShortcut>
#include <QMap>


class QMenu;
class QLabel;

namespace Ui
{
class LtsToolBarArea;
}

namespace LtsWidgets
{
class LtsDragIcon;

struct ShortCut
{
  int          key = 0;
  QShortcut   *shortcut = nullptr;
  QString      name;
  QString      identifier;
  LtsDragIcon *icon = nullptr;
  QString      keyName() const {return shortcut ? shortcut->key().toString() : QString();}
  void clear();

  explicit ShortCut(QWidget *parent = nullptr)
    : shortcut(new QShortcut(parent))
  {}

  ~ShortCut() { delete shortcut; }
  ShortCut(const ShortCut &o)
    : key(o.key)
    , name(o.name)
    , identifier(o.identifier)
    , icon(o.icon)
  {
    if (o.shortcut)
    {
      delete shortcut;
      shortcut = new QShortcut(o.shortcut->key(), qobject_cast<QWidget*>(o.shortcut->parent()), nullptr, nullptr, o.shortcut->context());
    }
  }

  ShortCut &operator=(const ShortCut &o)
  {
    if (&o == this)
      return *this;

    key = o.key;
    name = o.name;
    identifier = o.identifier;
    icon = o.icon;
    QWidget *parent = qobject_cast<QWidget*>(shortcut->parent());
    delete shortcut;
    if (o.shortcut)
      shortcut = new QShortcut(o.shortcut->key(), qobject_cast<QWidget*>(o.shortcut->parent()), nullptr, nullptr, o.shortcut->context());
    else
      shortcut = new QShortcut(parent);
    return *this;
  }
};

class LTSWIDGETS_EXPORT LtsToolBarArea : public QWidget
{

  Q_OBJECT
public:
  explicit LtsToolBarArea(QWidget *parent = nullptr);
  ~LtsToolBarArea();

  void addMenuEntry(LtsDragIcon *entry, LtsDragIcon *after = nullptr);
  void clearToolBarArea();

  void setMenuEntries(const QVector<LtsDragIcon *> &actions);
  QStringList menuEntries() const;

  bool setFunctionKey(int fkey, const QString &action);
  QMap<int, QString> functionKeys() const;

  bool removeFunctionKey(const QString &action);
  void removeMenuAction(LtsDragIcon *icon);

public slots:
  void showContextMenu(const QPoint &pos);
  void functionKeyMenuTriggered();

protected:
  void dragEnterEvent(QDragEnterEvent *event) override;
  void dropEvent(QDropEvent *event) override;

private:
  QMenu* functionKeyMenu(QWidget *parent);
  QString m_currentIdentifierForContextMenue;

  QVector<LtsDragIcon *> m_buttonMap;
  QVector<LtsDragIcon *> m_foreignButtonMap;
  QMap<int, ShortCut>    m_functionKeys;
  QLabel *m_dummyLabel;

  Ui::LtsToolBarArea *m_ui;

  void saveSettings();
};

}