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#ifndef TREEMODEL_H
#define TREEMODEL_H

#include <QAbstractItemModel>
#include <QModelIndex>
#include <QVariant>
#include <QSqlQuery>
#include <QSqlDatabase>

#include "yacreader_global.h"

class FolderItem;

//! [0]
class FolderModel : public QAbstractItemModel
{
	Q_OBJECT

public:
    FolderModel(QObject *parent = 0);
    FolderModel( QSqlQuery &sqlquery, QObject *parent = 0);
    ~FolderModel();

    //QAbstractItemModel methods
	QVariant data(const QModelIndex &index, int role) const;
	Qt::ItemFlags flags(const QModelIndex &index) const;
	QVariant headerData(int section, Qt::Orientation orientation,
						int role = Qt::DisplayRole) const;
	QModelIndex index(int row, int column,
					  const QModelIndex &parent = QModelIndex()) const;
	QModelIndex parent(const QModelIndex &index) const;
	int rowCount(const QModelIndex &parent = QModelIndex()) const;
	int columnCount(const QModelIndex &parent = QModelIndex()) const;

    //Convenience methods
    void setupModelData(QString path);
    QString getDatabase();
	QString getFolderPath(const QModelIndex &folder);
    QModelIndex indexFromItem(FolderItem * item, int column);
    void setFilter(const YACReader::SearchModifiers modifier, QString filter, bool includeComics);
	void resetFilter();
	bool isFilterEnabled(){return filterEnabled;};

    void updateFolderCompletedStatus(const QModelIndexList & list, bool status);
    void updateFolderFinishedStatus(const QModelIndexList & list, bool status);

    QStringList getSubfoldersNames(const QModelIndex & mi);

    void fetchMoreFromDB(const QModelIndex & parent);

    QModelIndex addFolderAtParent(const QString & folderName, const QModelIndex & parent);

    enum Columns {
        Name = 0,
        Path = 1,
        Finished = 2,
        Completed = 3
    };//id INTEGER PRIMARY KEY, parentId INTEGER NOT NULL, name TEXT NOT NULL, path TEXT NOT NULL

public slots:
    void deleteFolder(const QModelIndex & mi);

private:
	void setupModelData( QSqlQuery &sqlquery, FolderItem *parent);
    void updateFolderModelData( QSqlQuery &sqlquery, FolderItem *parent);
	void setupFilteredModelData( QSqlQuery &sqlquery, FolderItem *parent);
	void setupFilteredModelData();

	FolderItem *rootItem; //el árbol
	QMap<unsigned long long int, FolderItem *> items; //relación entre folders

	FolderItem *rootBeforeFilter;
	QMap<unsigned long long int, FolderItem *> filteredItems; //relación entre folders

	QString _databasePath;

	bool includeComics;
	QString filter;
	bool filterEnabled;

    YACReader::SearchModifiers modifier;
signals:
	void beforeReset();
	void reset();
};
//! [0]

#endif