#ifndef VIEWCUBE_H
#define VIEWCUBE_H

#include <QOpenGLFunctions>
#include <QMatrix4x4>
#include <QOpenGLVertexArrayObject>
#include <QOpenGLBuffer>
#include <QPoint>

class QOpenGLShaderProgram;
class QOpenGLTexture;
class QPainter;
class QSvgRenderer;

class ViewCube : protected QOpenGLFunctions
{
public:
    ViewCube();
    ~ViewCube();

    void initializeGL();
    void paintGL(QOpenGLShaderProgram* simpleShader, int simpleShaderColorLoc, const QMatrix4x4& viewMatrix, int width, int height, const QPoint& mousePos);
    void paint2D(QPainter& painter, int widgetWidth, int widgetHeight);
    bool handleMousePress(const QPoint& pos, int widgetWidth, int widgetHeight);

private:
    void createFaceTextures();
    void initShaders();
    void setupBuffers();
    void drawViewCube(const QMatrix4x4& projection, const QMatrix4x4& view, float opacity);
    void drawAxes(QOpenGLShaderProgram* simpleShader, int colorLoc, const QMatrix4x4& projection, const QMatrix4x4& view);

    bool m_isHovered = false;
    QRect m_homeButtonRect;
    QSvgRenderer* m_homeButtonRenderer = nullptr;

    QOpenGLTexture* m_faceTextures[6];

    QOpenGLShaderProgram* m_textureShaderProgram = nullptr;

    QOpenGLVertexArrayObject m_cubeVao;
    QOpenGLBuffer m_cubeVbo;

    QOpenGLVertexArrayObject m_axesVao;
    QOpenGLBuffer m_axesVbo;
};

#endif // VIEWCUBE_H