#ifndef CTRENDGRAPH_H
#define CTRENDGRAPH_H

#include <QString>
#include <QColor>
#include <QMap>
#include <QList>
#include <QtMath>
#include <float.h>

/******************************趋势图形**************************
 * 此类包含趋势静态配置属性
 **************************************************************/
extern const double _EPSILON_;

struct Range
{
    Range()
        : min(DBL_MAX),
          max(-DBL_MAX)
    {}

    Range(double _min, double _max)
        : min(_min),
          max(_max)
    {}
    double min;
    double max;
};

struct Curve
{
    Curve(const QString &strTagName = QString())
        : visible(true),
          rtMax(-DBL_MAX),
          rtMin(DBL_MAX),
          rtAverage(-DBL_MAX),
          rtAccuml(0),
          hisMax(-DBL_MAX),
          hisMin(DBL_MAX),
          hisAverage(-DBL_MAX),
          hisAccuml(0),
          graphFactor(1.),
          graphOffset(0.),
          factor(1.),
          offset(0.),
          rtMaxTime(-DBL_MAX),
          rtMinTime(DBL_MAX),
          hisMaxTime(-DBL_MAX),
          hisMinTime(DBL_MAX),
          sHisMax(-DBL_MAX),
          sHisMin(DBL_MAX),
          sHisMaxTime(-DBL_MAX),
          sHisMinTime(DBL_MAX),
          tag(strTagName),
          desc(QString()),
          type(QString()),
          unit(QString()),
          color(QColor()){}

    inline bool operator==(const Curve &curve) const
    {
        return tag == curve.tag;
    }

    inline bool operator==(const QString &strTagName) const
    {
        return tag == strTagName;
    }

    bool visible;
    double rtMax;
    double rtMin;
    double rtAverage;
    double rtAccuml;
    double hisMax;
    double hisMin;
    double hisAverage;
    double hisAccuml;
    double graphFactor;
    double graphOffset;
    double factor;
    double offset;
    double rtMaxTime;
    double rtMinTime;
    double hisMaxTime;
    double hisMinTime;
    double sHisMax;      //< 实际的最大值(influx统计),仅用于显示
    double sHisMin;      //< 实际的最小值(influx统计),仅用于显示
    double sHisMaxTime;  //< 实际的最大值时间(influx统计),仅用于显示
    double sHisMinTime;  //< 实际的最小值时间(influx统计),仅用于显示

    Range  hisPlotRange; //<  hisPlotRange > Range(hisMin, hisMax) [趋势对比计算刻度]

    QString tag;
    QString desc;
    QString type;
    QString unit;
    QColor color;

    QVector< QPair <double, QPair< double, int > > > values;
};

class CTrendGraph
{
public:
    CTrendGraph();

    ~CTrendGraph();

    const QList<Curve> curves() const;
    void setCurves(QList<Curve> listCurve);

    const QList<QColor> curveColors() const;

    const Curve &curve(const QString &tag) const;
    int index(const QString &tag) const;

    void clear();

    void addCurve(const Curve &curve);
    int removeCurve(const QString &tag);

    void setCurveVisible(const int &nIndex, const bool &visible);

    void setCurveColor(const int &nIndex, const QColor &color);
    void setCurveFactor(const int &nIndex, const double &factor);
    void setCurveOffset(const int &nIndex, const double &offset);

    void setCurveHisDataValue(const QString &tag, const double &max, const double &min, const double &maxTime, const double &minTime, const double &average, const double &accuml, const Range &range);
    void pushCurveRTDataValue(const QString &tag, const double &key, const double &value, const int &status);

    void setCurveStatisMax(const QString &tag, const double &max, const double &maxTime);
    void setCurveStatisMin(const QString &tag, const double &min, const double &minTime);

    void resetCurveStatisMax(const QString &tag);
    void resetCurveStatisMin(const QString &tag);

    void setCurveGraphFactor(const int &nIndex, const double &factor);
    void setCurveGraphOffset(const int &nIndex, const double &offset);

    //< 更新实时曲线统计信息
    void updateRTCurveStatisticsInfo(const QString &strTagName);
    void updateRTCurveStatisticsInfo(Curve &curve);

private:
    QList<Curve> m_listCurve;
};

#endif // CTRENDGRAPH_H