#pragma once

#include <QLineF>
#include <QPointF>
#include <QPolygonF>
#include <QtMath>
#include <QLineF>

class Circle;

namespace PlanimetryCalculus {

    enum IntersectType{InsideNoIntersection, InsideTouching, InsideIntersection,
                       OutsideIntersection, OutsideTouching, OutsideNoIntersection,
                       CirclesEqual, //Circle Circle intersection

                       NoIntersection, Tangent, Secant, // Circle Line Intersetion

                       EdgeCornerIntersection, EdgeEdgeIntersection, CornerCornerIntersection,
                       LinesParallel, LinesEqual, // Line Line intersection

                       Error // general
                       };

    void rotate(QPointF &point, double alpha);
    void rotate(QList<QPointF> &point, double alpha);
    void rotate(QLineF &point, double alpha);
    void rotate(QPolygonF &point, double alpha);
    void rotateDegree(QPointF &point, double alpha);
    void rotateDegree(QList<QPointF> &points, double alpha);
    void rotateDegree(QLineF &point, double alpha);
    void rotateDegree(QPolygonF &point, double alpha);
    IntersectType intersects(const Circle &circle1, const Circle &circle2);
    IntersectType intersects(const Circle &circle1, const Circle &circle2, QList<QPointF> &intersectionPoints);
    IntersectType intersects(const Circle &circle, const QLineF &line);
    IntersectType intersects(const Circle &circle, const QLineF &line, QList<QPointF> &intersectionPoints);


    IntersectType        intersects(const QLineF &line1, const QLineF &line2, QPointF &intersectionPt);
    QList<IntersectType> intersects(const QPolygonF &polygon, const QLineF &line, QList<QPointF> &intersectionList,  QList<QPair<int, int>> &neighbourList);
    IntersectType        intersects(const QPolygonF &polygon, const QLineF &line);

    double distance(const QPointF &p1, const QPointF p2);
    double angle(const QPointF &p1, const QPointF p2);
    double angleDegree(const QPointF &p1, const QPointF p2);
    double truncateAngle(double angle);
    double truncateAngleDegree(double angle);
}