#pragma once

#include <android/hardware_buffer.h>
#include <cstdint>

/**
 * Abstract interface for texture backends.
 * Allows swapping between OpenGL and Vulkan implementations at runtime.
 */
class ITextureBackend
{
public:
    virtual ~ITextureBackend() = default;

    /**
     * Create texture resources from a hardware buffer.
     * @param buffer The AHardwareBuffer from the Mosis service
     * @return true if creation succeeded
     */
    virtual bool Create(AHardwareBuffer* buffer) = 0;

    /**
     * Update the texture (blit from source to destination).
     * Called each frame when a new frame is available.
     */
    virtual void Update() = 0;

    /**
     * Destroy all texture resources.
     */
    virtual void Destroy() = 0;

    /**
     * Get the native texture pointer for Unity.
     * For OpenGL: GLuint cast to void*
     * For Vulkan: VkImage cast to void*
     */
    virtual void* GetNativeTexturePtr() = 0;

    /**
     * Get texture dimensions.
     */
    virtual int GetWidth() const = 0;
    virtual int GetHeight() const = 0;

    /**
     * Check if the backend is Vulkan-based.
     * Unity needs this to know how to interpret the native pointer.
     */
    virtual bool IsVulkan() const = 0;
};