#ifndef CT_READER_TRAJECTORY_H
#define CT_READER_TRAJECTORY_H

#include "ct_reader/abstract/ct_abstractreader.h"
#include "ctlibio/ctlibio_global.h"

#include "ct_itemdrawable/ct_scanpath.h"

#include <Eigen/Core>

/**
 * @brief Reader that can load a trajectory file (*.asc *.xyz *.csv etc...)
 */
class CTLIBIO_EXPORT CT_Reader_Trajectory : public CT_AbstractReader
{
    Q_OBJECT
    typedef CT_AbstractReader SuperClass;

public:
    CT_Reader_Trajectory(int subMenuLevel = 0);
    CT_Reader_Trajectory(const CT_Reader_Trajectory& other);

    /**
     * @brief Returns a displayable name of the reader
     */
    QString displayableName() const override;

    /**
     * @brief Show a dialog to configure this reader
     */
    bool configure() override;

    void saveSettings(SettingsWriterInterface& writer) const override;
    bool restoreSettings(SettingsReaderInterface& reader) override;

    void setXColumnIndex(int index);
    void setYColumnIndex(int index);
    void setZColumnIndex(int index);

    void setGPSTimeColumnIndex(int index);

    void setFirstConfiguration(bool first);

    void setLinesToSkip(int skip);
    void setHasHeader(bool hasHeader);
    void setValueSeparator(QString sep);
    void setLocaleName(QString locale);

    int xColumnIndex() const;
    int yColumnIndex() const;
    int zColumnIndex() const;

    int gpsTimeColumnIndex() const;


    bool canLoadPoints() const;

    READER_ALL_COPY_IMP(CT_Reader_Trajectory)

private:
    bool    m_firstConfiguration;
    int     m_columnXIndex;
    int     m_columnYIndex;
    int     m_columnZIndex;
    int     m_columnGPSTimeIndex;
    int     m_nLinesToSkip;
    bool    m_hasHeader;
    QString m_separator;
    QString m_localeName;

    CT_HandleOutSingularItem<CT_ScanPath>          m_hOutScanPath;


protected:
    void internalDeclareOutputModels(CT_ReaderOutModelStructureManager& manager) override;
    bool internalReadFile(CT_StandardItemGroup* group) override;

    int maxColumnIndex() const;
    void skipLines(QTextStream &stream, qint64 &currentSizeRead) const;
    bool readPoint(const QStringList &wordsOfLine, const QLocale &locale, Eigen::Vector3d &point, double &gpsTime) const;
};

#endif // CT_READER_TRAJECTORY_H