#ifndef HYDRATEXTUREBUFFERMANAGER
#define HYDRATEXTUREBUFFERMANAGER

#include "../engine/HydraObject.h"
#include "HydraTexureBuffer.h"

#include <vector>
#include <queue>
#include <unordered_map>
#include <GLMIncludes.h>
#include <stb_image.h>
#include <mutex>
#include <string>
#include "../GlewIncludes.h"

class HydraTextureBufferManager : public HydraObject
{
    public:
        void Intialise();                
        void Shutdown();
        HydraID CreateTexture(std::string texture_name,
            uint32_t width, uint32_t height, uint32_t internal_format, 
            uint32_t min_filter, uint32_t mag_filter,
            uint32_t format = GL_RGBA, uint32_t data_type = GL_UNSIGNED_BYTE, uint32_t mip_levels = 0, void* data = nullptr);  
            
        HydraID CreateTextureArray(std::string texture_name,                                                 
                                                 uint32_t width,
                                                 uint32_t height,
                                                 uint32_t internal_format,
                                                 uint32_t min_filter,
                                                 uint32_t mag_filter,
                                                 uint32_t levels);
        void BindTexture(HydraID texture_id, uint32_t target);
        void UnbindTexture(HydraID texture_id);
        void DeleteTexture(HydraID texture_id);
        HydraID LoadTexture(std::string texture_filename);
        HydraID FindTexture(std::string texture_name);
        void* GetTextureBuffer();
        const HydraTextureBuffer& GetTexture(HydraID texture_id);

    private:
        HydraID _GetTextureID();
        std::mutex m_mutex;
        std::queue<HydraID> m_available_texture_ids;
        std::vector<HydraTextureBuffer> m_textures;
        std::vector<uint64_t> m_bindless_texture_ids;
        std::unordered_map<std::string, HydraID> m_texture_lookup;
        uint32_t m_gl_texture_id = 0;
};

#endif /* HYDRATEXTUREBUFFERMANAGER */