#pragma once
#include "node.h"
#include "node_stroke_preview.h"
#include "node_slider.h"
#include "brush.h"
#include "node_checkbox.h"
#include "node_combobox.h"
#include "node_image_texture.h"
#include "node_button.h"
#include "shape.h"
#include "image.h"
#include "nanort.h"

class NodePanelGrid : public Node
{
public:
    enum class ShadeMode : uint8_t { Transparent, Flat, Solid, Textured };

    NodeSliderH* m_groud_opacity;
    NodeSliderH* m_groud_value;
    NodeSliderH* m_groud_resolution;
    NodeSliderH* m_groud_offset;
    NodeImageTexture* m_hm_preview;
    NodeButton* m_hm_load;
    NodeButton* m_hm_clear;
    NodeButton* m_hm_reload;
    NodeComboBox* m_hm_shading;
    NodeSliderH* m_hm_height;
    NodeSliderH* m_hm_wireframe;
    NodeSliderH* m_hm_lyaw;
    NodeSliderH* m_hm_lpitch;
    NodeButton* m_render;
    NodeButton* m_commit;
    HeightmapPlane m_hm_plane;
    Sphere m_sphere;
    Image m_hm_image;
    Texture2D m_texture;
    Sampler m_sampler_linear;
    std::string m_file_path;
    nanort::BVHAccel<float> m_rt_accel;
    bool m_rt_dirty = true;;
    ShadeMode m_shade_mode{ ShadeMode::Transparent };

    virtual Node* clone_instantiate() const override;
    virtual void clone_finalize(Node* dest) const override;
    virtual void init() override;
    void init_controls();
    float get_height() const;
    float get_offset() const;
    void draw_heightmap(const glm::mat4& proj, const glm::mat4& camera) const;
    void bake_uvs();
};