#ifndef RENDERER_HPP
#define RENDERER_HPP

#include <memory>
#include <type_traits>
#include "math/vector.hpp"
#include "o3d/tri.hpp"
#include "o3d/tri_deriv.hpp"
#include "o3d/mesh.hpp"
#include "fb/fb.hpp"
#include "shaders/shaders.hpp"

namespace engine {

template<fb::FrameBufferConcept FrameBuffer, shaders::ShadersConcept Shaders>
class Renderer
{
    public:
        FrameBuffer fb;
        Shaders shaders;

        Renderer(FrameBuffer&& fb, Shaders&& shaders);

        void resize(unsigned int w, unsigned int h);
        void clear();
        void draw_triangle(const o3d::Triangle& triangle);
        void draw_mesh(const o3d::Mesh& mesh);

        constexpr unsigned int width() const & {
            return fb.width();
        }

        constexpr unsigned int height() const & {
            return fb.height();
        }

    private:
        std::vector<float> depth_buf;

        void _draw_cropped_triangle(const o3d::Triangle& root, const o3d::TriangleDerived<engine::math::Vector3>& triangle);
};

}

#endif // RENDERER_HPP