#ifndef TIME_CHART_PAGE_H
#define TIME_CHART_PAGE_H

#include <QtWidgets>
#include "BaseStatPage.h"
#include "../charts/DataPoint.h"

class TimeChart;
class StatisticsParams;
class CardPack;

class TimeChartPage: public BaseStatPage
{
    Q_OBJECT
public:
    TimeChartPage(const StatisticsParams* statParams);
    void updateDataSet();
    bool usesTimePeriod() const {return true;}

protected:
    virtual QList<QDateTime> getDates(const CardPack* pack) const = 0;
    virtual int getDataDirection() const = 0;
    QWidget* createChart();

private:
    int getStudyPeriodLength(const QList<QDateTime>& dates) const;
    int getReviewsNum(const QList<QDateTime>& dates, int period) const;

private:
    TimeChart* chart;
};

#endif