#ifndef RADIX_RADIXWIDGETS_NAVIGATIONWIDGET_HH_
#define RADIX_RADIXWIDGETS_NAVIGATIONWIDGET_HH_

#include <QSortFilterProxyModel>
#include <QStandardItemModel>
#include <QStyledItemDelegate>
#include <QWidget>

#include "radixcore/visibility.hh"

#include <memory>

QT_BEGIN_NAMESPACE
class QStandardItem;
class QTreeView;
QT_END_NAMESPACE

namespace radix
{
// Forward declaration
class NavigationItem;
class NavigationModel;
class NavigationActionManager;

class RADIX_PUBLIC NavigationItemSortFilterProxyModel
    : public QSortFilterProxyModel
{
  Q_OBJECT

 public:
  NavigationItemSortFilterProxyModel(QObject* parent = nullptr);

 public slots:
  void clearCache();

 protected:
  bool filterAcceptsRow(int row, const QModelIndex& parent) const;

 private:
  bool accepts(const QModelIndex& index) const;
  class PImpl;
  std::unique_ptr<PImpl, void (*)(PImpl*)> p;
  static void deleter(PImpl* impl);
};

class RADIX_PUBLIC NavigationWidget : public QWidget
{
  Q_OBJECT

 public:
  NavigationWidget(QWidget* parent = nullptr);

  void collapse(QStandardItem* item);

  void expand(QStandardItem* item);
  NavigationModel* navigationModel();
  NavigationActionManager* navigationActionManager();

  QTreeView* navigationTree() const;
 private slots:
  void contextMenuRequested(QPoint);
 public slots:
  void filterModel(const QString& pattern);

 signals:
  void itemDoubleClicked(const QModelIndex& index);
  void itemClicked(const QModelIndex& index);
  void itemChecked(const QModelIndex& index);
  void itemUnchecked(const QModelIndex& index);

 private:
  void initLayout();

  void initMembers();

  class PImpl;
  std::unique_ptr<PImpl, void (*)(PImpl*)> p;
  static void deleter(PImpl* impl);
};
}  // namespace radix

#endif /** RADIX_RADIXWIDGETS_NAVIGATIONWIDGET_HH_ */