#pragma once

#include <SDL3/SDL_gpu.h>
#include <SDL3/SDL_video.h>

// ============================================================================
// GpuContext — SDL_GPU device + swapchain wrapper
// Replaces SDL_Renderer as the main rendering backend.
// ============================================================================
class GpuContext {
public:
    bool init(SDL_Window* window);
    void destroy();

    SDL_GPUDevice*       device()  const { return device_; }
    SDL_Window*          window()  const { return window_; }
    SDL_GPUTextureFormat swapchainFormat() const { return swapchain_format_; }

    // Per-frame helpers
    SDL_GPUCommandBuffer* acquireCommandBuffer();
    // Returns nullptr if window is minimized (swapchain not available).
    SDL_GPUTexture* acquireSwapchainTexture(SDL_GPUCommandBuffer* cmd_buf,
                                             Uint32* out_w, Uint32* out_h);
    void submit(SDL_GPUCommandBuffer* cmd_buf);

    // VSync control (call after init)
    bool setVSync(bool enabled);

private:
    SDL_GPUDevice*       device_           = nullptr;
    SDL_Window*          window_           = nullptr;
    SDL_GPUTextureFormat swapchain_format_ = SDL_GPU_TEXTUREFORMAT_INVALID;
};