#pragma once
#include <stdint.h>

// Minimal subset of Unity's plugin SDK headers (from Unity's NativeRenderingPlugin sample).
// Full headers available at: https://github.com/Unity-Technologies/NativeRenderingPlugin

#ifndef UNITY_INTERFACE_API
#   if defined(_WIN32)
#       define UNITY_INTERFACE_API  __stdcall
#       define UNITY_INTERFACE_EXPORT __declspec(dllexport)
#   else
#       define UNITY_INTERFACE_API
#       define UNITY_INTERFACE_EXPORT __attribute__((visibility("default")))
#   endif
#endif

struct IUnityInterface {};

// Must be declared before IUnityInterfaces uses it.
struct UnityInterfaceGUID {
    uint64_t high;
    uint64_t low;
};

struct IUnityInterfaces {
    // x64 Windows ABI: a 16-byte struct is passed by pointer (caller allocates on stack,
    // passes rdx = &struct). Our signature must match Unity's vtable exactly — one
    // struct-by-value arg — so the compiler generates the correct pointer-passing call.
    virtual IUnityInterface* UNITY_INTERFACE_API GetInterfaceByGUID(UnityInterfaceGUID guid) = 0;

    template<typename T>
    T* Get() {
        return static_cast<T*>(GetInterfaceByGUID(T::GUID));
    }
};