/**
  * Model for numeral code table
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by hjl, SLSE, 2016-12-09
  */

#pragma once

#include <QAbstractTableModel>
#include <CodificationManagement/logger.h>
#include <CodificationManagement/cod_dtc.h>


namespace CodificationManagement
{

class NumeralCodeModel final : public QAbstractTableModel
{
  Q_OBJECT
public:
  explicit NumeralCodeModel(QWidget *parent);

  ~NumeralCodeModel() = default;

  /**
    * init model internal data matrix
    * @param dtc  access to Data Topic Client
    * @param codificationDataId  id of the used codification data set
    * @param isEditMode  true means model used for edit, otherwise used for show only
    *                    in edit mode non update will be done by external data change
    * @return Returns true on success, otherwise false
    */
  bool init(const std::shared_ptr<CodificationManagement::Interface::Dtc> &dtc,
            int codificationDataId,
            bool isEditMode = false);

  /**
  * set the horizontal and vertical header to zero
  */
  void resetHeader();

  /**
    * set column selection values
    * @param data  refernce to character set of column selection values
    * @return Returns true on success, otherwise false
    */
  bool setColumnSelectionValuesCSV(const QString &csvData);

  /**
    * set row selection values
    * @param data  reference to character set of row selection values
    * @return Returns true on success, otherwise false
    */
  bool setRowSelectionValuesCSV(const QString &csvData);

  /**
    * get horizontal header in csv format
    * @param -
    * @return Returns horizontal header in csv format;
    */
  QString getHorizontalHeaderCSVString() const;

  /**
    * get vertical header in csv format
    * @param -
    * @return Returns vertical header in csv format;
    */
  QString getVerticalHeaderCSVString() const;

  /**
    * set/get edit mode flag used for internal data handling
    * @param isEditMode  true means set edit mode
    * @return Returns true if edit mode is set, otherwise false
    */
  void setEditMode(bool isEditMode);
  bool isEditMode() const;

  /**
    * get the row count  (MVC-model)
    * @param ModelIndex
    * @return int Returns the count
    */
  int rowCount(const QModelIndex &parent = QModelIndex()) const override;

  /**
    * get the row column  (MVC-model)
    * @param ModelIndex
    * @return int Returns the count
    */
  int columnCount(const QModelIndex &parent = QModelIndex()) const override;

  /**
    * get the header data (MVC-model)
    * @param section (column)
    * @param Qt::Orientation
    * @param role
    * @return QVariant
    */
  QVariant headerData(int column, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;

  /**
    * get the data (MVC-model)
    * @param QModelIndex
    * @return QVariant
    */
  QVariant data(const QModelIndex &index, int role) const override;

  /**
    * set the data (MVC-model)
    * @param QModelIndex
    * @return bool  Returns true if successfull, otherwise returns false
    */
  bool setData(const QModelIndex &index, const QVariant &value, int role) override;

  /**
  * get flags for the given QModelIndex (MVC-model)
  * @param ModelIndex
  * @return flags Returns the flags
  */
  Qt::ItemFlags flags(const QModelIndex &index) const override;

Q_SIGNALS:

  /**
  * emits when data was changed (used to enable add/okay button)
  */
  void dataModified();


private Q_SLOTS:
  void onCodificationDataChanged(const CodificationManagement::CodificationData &data,
                                 DataModification modType);

private:

  /**
  * init the constant 13x13 code matrix
  */
  void initMatrix();

  QVector <QChar> m_MatrixNumeralSet;      ///< Numeral Set 0-9
  QVector <QChar> m_MatrixCharacterSet1;   ///< Character set 1  A-Z  26 Character
  QVector <QChar> m_MatrixCharacterSet2;   ///< Character set 2  especially 12 Character D...U

  QChar m_matrix[13][13];                  ///< Hold the numeral code table (without row/column selcet index fields)

  QVector <QChar> m_RowSelectionValues;    ///< Hold the row selection index field character
  QVector <QChar> m_ColumnSelectionValues; ///< Hold the column selection index field character

  std::shared_ptr<CodificationManagement::Interface::Dtc> m_dtc;

  int m_codificationDataId;               ///< Id of the used codification data set
  bool m_isEditMode;                      ///< Hold the dialog mode setting; if true the indices in row 0 and column 0 can be modified
  NGL::INGLLogger      &m_logger;         ///< Interface to the Logging-Facility
};

} //namespace CodificationManagement