#ifndef FILMSBYCATEGORY_H
#define FILMSBYCATEGORY_H

#include <QObject>
#include <QQmlEngine>
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QSqlError>
#include <QBarSet>
#include <QtMinMax>
#include <QColor>
#include <QPieSlice>
#include <QPieSeries>

class FilmsByCategory : public QObject
{
    Q_OBJECT
    QML_ELEMENT
    QML_SINGLETON

public:
    explicit FilmsByCategory(QObject *parent = nullptr);
    static bool openDatabase();

    int maxCount() const;

signals:
    void changed(QBarSet* bar);
    void maxCountChanged();

public slots:
    void getBarSetData();
    QPieSeries* getPieSliceData();
    QList<QColor> rainbowColors(int n);
    QList<QColor> contrastColors(int n);

private:
    int m_maxCount;
    Q_PROPERTY(int maxCount READ maxCount NOTIFY maxCountChanged FINAL)

};

#endif // FILMSBYCATEGORY_H