#ifndef HISTORYGRAPH_H
#define HISTORYGRAPH_H

#include <QDateTime>
#include <QHostAddress>
#include <QFile>
#include <QString>
#include <QTimer>
#include "global.h"
#include "util.h"

/* Definitions ****************************************************************/
// number of history items to store
#define NUM_ITEMS_HISTORY           600

/* Interface ********************************************************************/
class AHistoryGraph
{
public:
    enum EHistoryItemType
    {
        HIT_LOCAL_CONNECTION,
        HIT_REMOTE_CONNECTION,
        HIT_SERVER_STOP
    };

    AHistoryGraph();
    ~AHistoryGraph() { }

    void Start ( const QString& sNewFileName );
    void Add ( const QDateTime& newDateTime, const EHistoryItemType curType );
    void Add ( const QDateTime& newDateTime, const QHostAddress ClientInetAddr );
    virtual void Update ( );

protected:
    struct SHistoryData
    {
        QDateTime        DateTime;
        EHistoryItemType Type;
    };
    void DrawFrame ( const int iNewNumTicksX );
    void AddMarker ( const SHistoryData& curHistoryData );
    virtual void Save ( const QString sFileName ) = 0;

    virtual void rect ( const unsigned int x, const unsigned int y, const unsigned int width, const unsigned int height ) = 0;
    virtual void text ( const unsigned int x, const unsigned int y, const QString& value ) = 0;
    virtual void line ( const unsigned int x1, const unsigned int y1, const unsigned int x2, const unsigned int y2, const unsigned int strokeWidth = 1 ) = 0;
    virtual void point ( const unsigned int x, const unsigned int y, const unsigned int size, const QString& colour ) = 0;

    // Constructor sets these
    QString             sFileName;
    bool                bDoHistory;
    CFIFO<SHistoryData> vHistoryDataFifo;
    unsigned int        iNumTicksX; // Class global, not sure why

    QString             BackgroundColor;
    QString             FrameColor;
    QString             GridColor;
    QString             TextColor;
    QString             MarkerNewColor;
    QString             MarkerNewLocalColor;
    QString             MarkerStopColor;

    const unsigned int  canvasRectX;
    const unsigned int  canvasRectY;
    const unsigned int  canvasRectWidth;
    const unsigned int  canvasRectHeight;

    const unsigned int  iGridFrameOffset;
    const unsigned int  iGridWidthWeekend;
    const unsigned int  iXAxisTextHeight;
    const unsigned int  gridFrameX;
    const unsigned int  gridFrameY;
    const unsigned int  gridFrameWidth;
    const unsigned int  gridFrameHeight;
    const unsigned int  gridFrameRight;
    const unsigned int  gridFrameBottom;

    const QString       axisFontFamily;
    const QString       axisFontWeight;
    const unsigned int  axisFontSize;

    const unsigned int  iYAxisStart;
    const unsigned int  iYAxisEnd;
    const unsigned int  iNumTicksY;

    const unsigned int  iTextOffsetToGrid;
    const unsigned int  iTextOffsetX;

    const unsigned int  iMarkerSizeNewCon;
    const unsigned int  iMarkerSizeServSt;

    // others
    double dayXSpace;
    unsigned int iYSpace;
    QDate curDate;
    QTimer TimerDailyUpdate;
};

#endif // HISTORYGRAPH_H