#ifndef HYDRACREATESHADOWFRAMEBUFFER
#define HYDRACREATESHADOWFRAMEBUFFER

#include "../HydraTask.h"
#include "../../engine/HydraEngine.h"
#include "../../renderer/HydraRenderer.h"
#include <GLMIncludes.h>
#include "../../GlewIncludes.h"

class HydraCreateShadowFrameBuffer : public HydraTask
{
private:
    uint32_t *m_texture_id = 0;
    uint32_t *m_frame_buffer_id = nullptr;

protected:
public:
    void Process() override
    {
        HydraEngine *engine = GetEngine();

        HydraTextureBufferManager *tex_buffer_manager = engine->TextureBufferManager();
        HydraRenderSettings render_settings = engine->RenderSettings();

        *m_texture_id = tex_buffer_manager->CreateTextureArray("shadow_FB",                                                        
                                                          SHADOW_MAP_SIZE, SHADOW_MAP_SIZE,
                                                          GL_DEPTH_COMPONENT24,
                                                          GL_NEAREST,
                                                          GL_NEAREST,
                                                          6);

        HydraTextureBuffer texture = tex_buffer_manager->GetTexture(*m_texture_id);

        glGenFramebuffers(1, m_frame_buffer_id);
        glBindFramebuffer(GL_FRAMEBUFFER, *m_frame_buffer_id);

        glNamedFramebufferDrawBuffer(*m_frame_buffer_id, GL_NONE);
        glNamedFramebufferReadBuffer(*m_frame_buffer_id, GL_NONE);

        glBindTexture(GL_TEXTURE_2D_ARRAY, texture.gl_tex_id);
        glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

        glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, texture.gl_tex_id, 0);

        GLenum status = glCheckNamedFramebufferStatus(*m_frame_buffer_id, GL_FRAMEBUFFER);
        if (status != GL_FRAMEBUFFER_COMPLETE)
        {
            std::cout << "Framebuffer error: " << status << std::endl;
        }
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
        glBindTexture(GL_TEXTURE_2D_ARRAY, 0);
        tex_buffer_manager->BindTexture(*m_texture_id, GL_TEXTURE_2D_ARRAY);
    }
    void Initialise(uint32_t *texture_id, uint32_t *frame_buffer_id)
    {
        m_texture_id = texture_id;
        m_frame_buffer_id = frame_buffer_id;
    }
};
#endif /* HYDRACREATESHADOWFRAMEBUFFER */