#pragma once
#include <QWidget>
#include <QPaintEvent>
#include <QPen>
#include <QPainter>
#include <vector>
class GraphView;
struct GraphSeries {
	std::vector<QPointF>* data;
	double minX, maxX;
	double minY, maxY;
	QString name;
	QColor color;
	int lineWidth = 2;
	double circleRadius = 1.0;
	enum class SeriesType{ Line, Dot, LineDot};
	SeriesType type;
	std::pair<std::vector<QPointF>::iterator, std::vector<QPointF>::iterator> getFirstLastIndexInSeriesThatsInBound(int minX, int maxX);
};

struct Bound {
	double minX = 0, minY = 0, maxX = 0, maxY = 0;
	enum class Change{MoveLeft, MoveRight, MoveUp, MoveDown, ZoomOut, ZoomIn, Reset};
	Bound() {}
	Bound(double minX, double maxX, double minY, double maxY):minX(minX), maxX(maxX), minY(minY), maxY(maxY){}
	void move(GraphView* widget,const Change& type, const double changePercentage = 0.1);
};

class GraphView :public QWidget
{
	Q_OBJECT

public:
	GraphView(QWidget* parent, QString title, Bound fixedBound);
	~GraphView();
	QString title;
	Bound fixedBound;
private:
	bool useFixedBound;
	void paintEvent(QPaintEvent* event) override;
	//Data
	std::vector<GraphSeries> graphSeriesVec;
	Bound totalBound;
	Bound actualBound = totalBound;
	double rangeGraphX = 0, rangeGraphY = 0;
	
	
	//Visualization
	QString xAxisNumbers[11];
	QString yAxisNumbers[11];
	double hueoffset;
	QPen linePen, rectPen, axisPen;




public:
	void setUseFixedBound(bool value);
	void generateAndAddRandomLine();
	void addLine(std::vector<QPointF>& line);
	void addLine(std::vector<QPointF>& line, QColor color);
	void addDots(std::vector<QPointF>& dots);
	void addDots(std::vector<QPointF>& dots, QColor color);
	void calculateRangeXY();
	void generateAxisNumberStrings();
private:
	void calculateTotalGraphBound();
	void GraphView::calculateMinMaxXY(GraphSeries& lgs);
	void addSeries(std::vector<QPointF>& line, QColor color, GraphSeries::SeriesType type);
	QColor generateNextColorForGraph();
	QPointF transformPoint(QPointF& point, double stregth_factorX, double stregth_factorY) const;
	bool inBoundX(QPointF& point);
	void keyPressEvent(QKeyEvent* event) override;
	void wheelEvent(QWheelEvent* event) override;

};