#pragma once

#include <memory>
#include <mutex>

#include <dxvk_surface.h>
#include <dxvk_swapchain.h>

#include "dxgi_interfaces.h"
#include "dxgi_object.h"
#include "dxgi_presenter.h"

#include "../d3d11/d3d11_interfaces.h"

#include "../spirv/spirv_module.h"

namespace dxvk {
  
  class DxgiDevice;
  class DxgiFactory;
  
  class DxgiSwapChain : public DxgiObject<IDXGISwapChain> {
    
  public:
    
    DxgiSwapChain(
          DxgiFactory*          factory,
          IUnknown*             pDevice,
          DXGI_SWAP_CHAIN_DESC* pDesc);
    ~DxgiSwapChain();
    
    HRESULT STDMETHODCALLTYPE QueryInterface(
            REFIID  riid,
            void**  ppvObject) final;
            
    HRESULT STDMETHODCALLTYPE GetParent(
            REFIID  riid,
            void**  ppParent) final;
    
    HRESULT STDMETHODCALLTYPE GetDevice(
            REFIID  riid,
            void**  ppDevice) final;
    
    HRESULT STDMETHODCALLTYPE GetBuffer(
            UINT    Buffer,
            REFIID  riid,
            void**  ppSurface) final;
    
    HRESULT STDMETHODCALLTYPE GetContainingOutput(
            IDXGIOutput **ppOutput) final;
    
    HRESULT STDMETHODCALLTYPE GetDesc(
            DXGI_SWAP_CHAIN_DESC *pDesc) final;
    
    HRESULT STDMETHODCALLTYPE GetFrameStatistics(
            DXGI_FRAME_STATISTICS *pStats) final;
    
    HRESULT STDMETHODCALLTYPE GetFullscreenState(
            BOOL        *pFullscreen,
            IDXGIOutput **ppTarget) final;
    
    HRESULT STDMETHODCALLTYPE GetLastPresentCount(
            UINT *pLastPresentCount) final;
    
    HRESULT STDMETHODCALLTYPE Present(
            UINT SyncInterval,
            UINT Flags) final;
    
    HRESULT STDMETHODCALLTYPE ResizeBuffers(
            UINT        BufferCount,
            UINT        Width,
            UINT        Height,
            DXGI_FORMAT NewFormat,
            UINT        SwapChainFlags) final;
    
    HRESULT STDMETHODCALLTYPE ResizeTarget(
      const DXGI_MODE_DESC *pNewTargetParameters) final;
    
    HRESULT STDMETHODCALLTYPE SetFullscreenState(
            BOOL        Fullscreen,
            IDXGIOutput *pTarget) final;

  private:
    
    struct WindowState {
      uint32_t style   = 0;
      uint32_t exstyle = 0;
      RECT     rect    = { 0, 0, 0, 0 };
    };
    
    std::mutex m_mutex;
    
    Com<DxgiFactory>                m_factory;
    Com<DxgiAdapter>                m_adapter;
    Com<DxgiDevice>                 m_device;
    Com<IDXGIPresentDevicePrivate>  m_presentDevice;
    
    DXGI_SWAP_CHAIN_DESC            m_desc;
    DXGI_FRAME_STATISTICS           m_stats;
    
    Rc<DxgiPresenter>               m_presenter;
    Com<IDXGIPresentBackBuffer>     m_backBuffer;
    
    WindowState                     m_windowState;
    
    HRESULT CreatePresenter();
    HRESULT CreateBackBuffer();
    
    VkExtent2D GetWindowSize() const;
    
    HRESULT EnterFullscreenMode(
            IDXGIOutput             *pTarget);
    
    HRESULT LeaveFullscreenMode();
    
    HRESULT GetSampleCount(
            UINT                    Count,
            VkSampleCountFlagBits*  pCount) const;
    
  };
  
}