#ifndef NAMESPACEITEMMODEL_H
#define NAMESPACEITEMMODEL_H

#include <QAbstractItemModel>
#include "catalog/PgNamespace.h"
#include <vector>
#include <iterator>

namespace NamespaceItemModel_impl {

	class Node;
	class LeafNode;
	class GroupNode;

}

class PgNamespaceContainer;

class NamespaceItemModel: public QAbstractItemModel {
public:
	NamespaceItemModel(QObject *parent = 0);

	void init(std::shared_ptr<const PgNamespaceContainer> ns);

	virtual QModelIndex index(int row, int column,
		const QModelIndex &parent = QModelIndex()) const override;
	virtual QModelIndex parent(const QModelIndex &index) const override;

	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
	virtual int columnCount(const QModelIndex &parent = QModelIndex()) const override;
	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
	virtual bool setData(const QModelIndex &index, const QVariant &value, int role) override;
	virtual Qt::ItemFlags flags(const QModelIndex &index) const override;

private:
	using GroupVec = std::vector<std::shared_ptr<NamespaceItemModel_impl::GroupNode>>;

	GroupVec groups;
};

#endif // NAMESPACEITEMMODEL_H