#pragma once

#include <volk.h>

#define VMA_STATIC_VULKAN_FUNCTIONS 0
#define VMA_DYNAMIC_VULKAN_FUNCTIONS 0
#include <vma/vk_mem_alloc.h>

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

struct GlobalMemory;
struct Frame;

/// The Rendering backend abstraction
///	If this fails to initialize, we crash
///
///	TODO: Fail elegantly.
struct RenderDevice
{
  struct CreateInfo
  {
    SDL_Window* window = nullptr;
    uint32_t    width  = 640;
    uint32_t    height = 480;
  };

  VkInstance             instance;
  VkSurfaceKHR           surface;
  VkPhysicalDevice       physicalDeviceInUse;

  VkDevice               device;
  VmaAllocator           gpuAllocator;
  VkQueue                directQueue;
  uint32_t               directQueueFamilyIndex;

  VkFormat               swapchainFormat;
  VkExtent2D             swapchainExtent;
  VkSwapchainKHR         swapchain;
  VkImage*               swapchainImages;
  VkImageView*           swapchainViews;
  Frame*                 frames;
  uint32_t               swapchainImageCount;
  uint32_t               frameIndex = 0;

  [[nodiscard]] bool     isInit() const;
  void                   destroy();
  void                   waitIdle() const;
  [[nodiscard]] uint32_t getNumFrames() const;

  RenderDevice(
      VkInstance       instance,
      VkSurfaceKHR     surface,
      VkPhysicalDevice physicalDeviceInUse,
      VkDevice         device,
      VmaAllocator     gpuAllocator,
      VkQueue          directQueue,
      uint32_t         directQueueFamilyIndex,

      VkFormat         swapchainFormat,
      VkExtent2D       swapchainExtent,
      VkSwapchainKHR   swapchain,

      VkImage*         swapchainImages,
      VkImageView*     swapchainViews,
      Frame*           frames,
      uint32_t         swapchainImageCount );

  RenderDevice( RenderDevice const& )                = delete;
  RenderDevice& operator=( RenderDevice const& )     = delete;

  RenderDevice( RenderDevice&& ) noexcept            = delete;
  RenderDevice& operator=( RenderDevice&& ) noexcept = delete;

  ~RenderDevice();
};

RenderDevice* RenderDevice_Create( GlobalMemory* mem, RenderDevice::CreateInfo const& createInfo );