/**
  * @RDE_HEADER@
  *
  * TableModel for dynamic topics
  *
  * $Id$
  * $HeadURL$
  * $Author$
  */

#pragma once

#include <QAbstractItemModel>
#include <QSortFilterProxyModel>
#include <QVector>
#include <QSharedPointer>
#include <QDomDocument>

#include <dds/dds.hpp>

#include "logger.h"

class SampleSortModel;
class DetailViewDlg;

class SampleModel final : public QAbstractTableModel
{
  Q_OBJECT
public:
  explicit SampleModel(QObject *parent = nullptr);
  ~SampleModel();

  enum Column
  {
    TypeName    = 0,
    TopicName   = 1,
    Description = 2,
    Pause       = 3,
    Maximum     = Pause
  };

  struct SampleData
  {
    std::string            typeName;
    QString                topicName;
    QString                description;
    int                    pause         = 1000;
    QSharedPointer<dds::core::xtypes::DynamicData> legatusData;
    DetailViewDlg         *dialog        = nullptr;
    void toXml(QDomDocument &doc, QDomElement &elem) const;
    bool fromXml(QDomElement &elem);

    QByteArray encodeForMime() const;
    static SampleData decodeFromMime(const QByteArray &encodedData);
  };

  int rowCount(const QModelIndex &parent = QModelIndex()) const override;
  int columnCount(const QModelIndex &parent = QModelIndex()) const override;

  bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::DisplayRole) override;
  QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;

  QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
  Qt::ItemFlags flags(const QModelIndex &index) const override;

  std::string typeName(const QModelIndex &index) const;
  const QSharedPointer<dds::core::xtypes::DynamicData> dynamicData(const QModelIndex &index) const;
  QString name(const QModelIndex &index) const;

  Qt::DropActions supportedDropActions() const override;
  Qt::DropActions supportedDragActions() const override;

  QMimeData *mimeData(const QModelIndexList &indexes) const override;
  bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
  QStringList mimeTypes() const override;

  bool addRow(const dds::core::xtypes::DynamicData &data, const QString &topicName, const QString &description = QString());
  bool deleteRow(const QModelIndex &index);
  bool updateRow(const QModelIndex &index, const QSharedPointer<dds::core::xtypes::DynamicData> &data, const QString &topicName);
  bool addRow(const SampleData &sample, int position = -1);

  SampleData sampleData(const QModelIndex &index) const;
  void setDialog(const QModelIndex &index, DetailViewDlg *dlg);
  QModelIndex indexByDialog(const DetailViewDlg *dlg) const;

public slots:
  void onClear();

private:

  QVector<SampleData>    m_data;
  NGL::INGLLogger       &m_logger;

  friend class SampleSortModel;
};

class SampleSortModel final : public QSortFilterProxyModel
{
  Q_OBJECT
public:
  using QSortFilterProxyModel::QSortFilterProxyModel;

  void setCurrentRow(int row) { m_currentRow = row; emit headerDataChanged(Qt::Vertical, row, row);}
  int  currentRow() { return m_currentRow >= rowCount() ? -1 : m_currentRow; }

  QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
  void sort(int column, Qt::SortOrder order) override;
protected:
  bool lessThan(const QModelIndex &left,
                const QModelIndex &right) const override;
private:
  int m_currentRow = -1;

};