#pragma once

#include "miniwin_d3d.h"

#include <stdlib.h> // abort // FIXME: remove

// --- Defines and Macros ---
#define D3DRM_OK DD_OK
#define MAXSHORT ((short) 0x7fff)
#define SUCCEEDED(hr) ((hr) >= D3DRM_OK)
#define D3DRMERR_NOTFOUND MAKE_DDHRESULT(785)

// --- Typedefs ---
typedef float D3DVAL;
typedef void* LPD3DRM_APPDATA;
typedef DWORD D3DRMGROUPINDEX;
typedef DWORD D3DCOLOR, *LPD3DCOLOR;
typedef float D3DVALUE, *LPD3DVALUE;

typedef struct IDirect3DRMObject* LPDIRECT3DRMOBJECT;
typedef void (*D3DRMOBJECTCALLBACK)(LPDIRECT3DRMOBJECT obj, LPVOID arg);

// --- Enums ---
#define D3DRMCOMBINE_REPLACE D3DRMCOMBINETYPE::REPLACE
enum class D3DRMCOMBINETYPE {
	REPLACE
};
typedef D3DRMCOMBINETYPE* LPD3DRMCOMBINETYPE;

#define D3DRMPALETTE_READONLY D3DRMPALETTEFLAGS::READONLY
enum class D3DRMPALETTEFLAGS {
	READONLY = 1
};
typedef D3DRMPALETTEFLAGS* LPD3DRMPALETTEFLAGS;

#define D3DRMTEXTURE_LINEAR D3DRMTEXTUREQUALITY::LINEAR
enum class D3DRMTEXTUREQUALITY {
	LINEAR = 1
};
typedef D3DRMTEXTUREQUALITY* LPD3DRMTEXTUREQUALITY;

#define D3DRMRENDERMODE_BLENDEDTRANSPARENCY D3DRMRENDERMODE::BLENDEDTRANSPARENCY
enum class D3DRMRENDERMODE {
	BLENDEDTRANSPARENCY = 1
};

#define D3DRMMAP_NONE D3DRMMAPPING::NONE
#define D3DRMMAP_PERSPCORRECT D3DRMMAPPING::PERSPCORRECT
enum class D3DRMMAPPING {
	NONE = 0,
	PERSPCORRECT = 4
};
typedef D3DRMMAPPING* LPD3DRMMAPPING;

#define D3DRMLIGHT_AMBIENT D3DRMLIGHTTYPE::AMBIENT
#define D3DRMLIGHT_POINT D3DRMLIGHTTYPE::POINT
#define D3DRMLIGHT_SPOT D3DRMLIGHTTYPE::SPOT
#define D3DRMLIGHT_DIRECTIONAL D3DRMLIGHTTYPE::DIRECTIONAL
#define D3DRMLIGHT_PARALLELPOINT D3DRMLIGHTTYPE::PARALLELPOINT
enum class D3DRMLIGHTTYPE {
	AMBIENT,
	POINT,
	SPOT,
	DIRECTIONAL,
	PARALLELPOINT
};
typedef D3DRMLIGHTTYPE* LPD3DRMLIGHTTYPE;

#define D3DRMMATERIAL_FROMMESH D3DRMMATERIALMODE::FROMMESH
#define D3DRMMATERIAL_FROMPARENT D3DRMMATERIALMODE::FROMPARENT
#define D3DRMMATERIAL_FROMFRAME D3DRMMATERIALMODE::FROMFRAME
enum class D3DRMMATERIALMODE {
	FROMMESH,
	FROMPARENT,
	FROMFRAME
};

#define D3DRMRENDER_WIREFRAME D3DRMRENDERQUALITY::WIREFRAME
#define D3DRMRENDER_UNLITFLAT D3DRMRENDERQUALITY::UNLITFLAT
#define D3DRMRENDER_FLAT D3DRMRENDERQUALITY::FLAT
#define D3DRMRENDER_GOURAUD D3DRMRENDERQUALITY::GOURAUD
#define D3DRMRENDER_PHONG D3DRMRENDERQUALITY::PHONG

enum class D3DRMRENDERQUALITY {
	WIREFRAME = 64,
	UNLITFLAT = 128,
	FLAT = 136,
	GOURAUD = 137,
	PHONG = 138
};
typedef D3DRMRENDERQUALITY* LPD3DRMRENDERQUALITY;

#define D3DRMPROJECT_PERSPECTIVE D3DRMPROJECTIONTYPE::PERSPECTIVE
#define D3DRMPROJECT_ORTHOGRAPHIC D3DRMPROJECTIONTYPE::ORTHOGRAPHIC
enum class D3DRMPROJECTIONTYPE {
	PERSPECTIVE,
	ORTHOGRAPHIC
};
typedef D3DRMPROJECTIONTYPE* LPD3DRMPROJECTIONTYPE;

// --- GUIDs ---
DEFINE_GUID(IID_IDirect3DRM2, 0x4516ecc8, 0x8f20, 0x11d0, 0x9b, 0x6d, 0x00, 0x00, 0xc0, 0x78, 0x1b, 0xc3);
DEFINE_GUID(IID_IDirect3DRMWinDevice, 0xc5016cc0, 0xd273, 0x11ce, 0xac, 0x48, 0x00, 0x00, 0xc0, 0x38, 0x25, 0xa1);
DEFINE_GUID(IID_IDirect3DRMFrame, 0xeb16cb03, 0xd271, 0x11ce, 0xac, 0x48, 0x0, 0x0, 0xc0, 0x38, 0x25, 0xa1);
DEFINE_GUID(IID_IDirect3DRMMesh, 0xa3a80d01, 0x6e12, 0x11cf, 0xac, 0x4a, 0x00, 0x00, 0xc0, 0x38, 0x25, 0xa1);
DEFINE_GUID(IID_IDirect3DRMMeshBuilder, 0xa3a80d02, 0x6e12, 0x11cf, 0xac, 0x4a, 0x00, 0x00, 0xc0, 0x38, 0x25, 0xa1);
DEFINE_GUID(IID_IDirect3DRMTexture2, 0x120f30c0, 0x1629, 0x11d0, 0x94, 0x1c, 0x00, 0x80, 0xc8, 0x0c, 0xfa, 0x7b);

// --- Structs ---
typedef struct D3DRMVECTOR4D {
	float x, y, z, w;
} D3DRMVECTOR4D;

typedef struct D3DRMPALETTEENTRY {
	unsigned char red, green, blue;
	D3DRMPALETTEFLAGS flags;
} D3DRMPALETTEENTRY;

typedef struct D3DRMIMAGE {
	DWORD width, height, depth, bytes_per_line;
	DWORD red_mask, green_mask, blue_mask, alpha_mask;
	DWORD palette_size;
	D3DRMPALETTEENTRY* palette;
	void* buffer1;
	void* buffer2;
	void* data;
	int rgb;
	int aspectx, aspecty;
	DWORD format;
} D3DRMIMAGE;

typedef D3DVALUE D3DRMMATRIX4D[4][4];

struct D3DRMBOX {
	D3DVECTOR min;
	D3DVECTOR max;
};

struct D3DRMVERTEX {
	D3DVECTOR position;
	D3DVECTOR normal;
	float tu, tv;
};

struct IDirect3DRMObject : public IUnknown {
	virtual HRESULT AddDestroyCallback(D3DRMOBJECTCALLBACK callback, void* arg) = 0;
	virtual HRESULT DeleteDestroyCallback(D3DRMOBJECTCALLBACK callback, void* arg) = 0;
	virtual HRESULT SetAppData(LPD3DRM_APPDATA appData) = 0;
	virtual LPVOID GetAppData() = 0;
	virtual HRESULT SetName(const char* name) = 0;
	virtual HRESULT GetName(DWORD* size, char* name) = 0;
};

struct IDirect3DRMVisual : public IDirect3DRMObject {};
typedef IDirect3DRMVisual* LPDIRECT3DRMVISUAL;

struct IDirect3DRMTexture : public IDirect3DRMVisual {
	virtual HRESULT Changed(BOOL pixels, BOOL palette) = 0;
};
typedef IDirect3DRMTexture* LPDIRECT3DRMTEXTURE;

struct IDirect3DRMTexture2 : public IDirect3DRMTexture {};
typedef IDirect3DRMTexture2* LPDIRECT3DRMTEXTURE2;

struct IDirect3DRMMaterial : public IDirect3DRMObject {
	virtual D3DVALUE GetPower() = 0;
};
typedef IDirect3DRMMaterial *LPDIRECT3DRMMATERIAL, **LPLPDIRECT3DRMMATERIAL;

struct IDirect3DRMMesh : public IDirect3DRMVisual {
	virtual HRESULT Clone(int flags, GUID iid, void** object) = 0;
	virtual HRESULT GetBox(D3DRMBOX* box) = 0;
	virtual HRESULT AddGroup(
		int vertexCount,
		int faceCount,
		int vertexPerFace,
		DWORD* faceBuffer,
		D3DRMGROUPINDEX* groupIndex
	) = 0;
	virtual HRESULT GetGroup(
		DWORD groupIndex,
		DWORD* vertexCount,
		DWORD* faceCount,
		DWORD* vertexPerFace,
		DWORD* dataSize,
		DWORD* data
	) = 0;
	virtual DWORD GetGroupCount() = 0;
	virtual HRESULT SetGroupColor(DWORD groupIndex, D3DCOLOR color) = 0;
	virtual HRESULT SetGroupColorRGB(DWORD groupIndex, float r, float g, float b) = 0;
	virtual HRESULT SetGroupTexture(DWORD groupIndex, IDirect3DRMTexture* texture) = 0;
	virtual HRESULT SetGroupMaterial(DWORD groupIndex, IDirect3DRMMaterial* material) = 0;
	virtual HRESULT SetGroupMapping(D3DRMGROUPINDEX groupIndex, D3DRMMAPPING mapping) = 0;
	virtual HRESULT SetGroupQuality(DWORD groupIndex, D3DRMRENDERQUALITY quality) = 0;
	virtual HRESULT SetVertices(DWORD groupIndex, int offset, int count, D3DRMVERTEX* vertices) = 0;
	virtual HRESULT GetGroupTexture(DWORD groupIndex, LPDIRECT3DRMTEXTURE* texture) = 0;
	virtual D3DRMMAPPING GetGroupMapping(DWORD groupIndex) = 0;
	virtual HRESULT GetGroupMaterial(DWORD groupIndex, LPDIRECT3DRMMATERIAL* material) = 0;
	virtual D3DRMRENDERQUALITY GetGroupQuality(DWORD groupIndex) = 0;
	virtual D3DCOLOR GetGroupColor(D3DRMGROUPINDEX index) = 0;
	virtual HRESULT GetVertices(DWORD groupIndex, int startIndex, int count, D3DRMVERTEX* vertices) = 0;
};

struct IDirect3DRMLight : public IDirect3DRMObject {
	virtual HRESULT SetColorRGB(float r, float g, float b) = 0;
};

struct IDirect3DRMArray : public IUnknown {
	virtual DWORD GetSize() = 0;
};

struct IDirect3DRMLightArray : public IDirect3DRMArray {
	virtual HRESULT GetElement(DWORD index, IDirect3DRMLight** out) = 0;
	virtual HRESULT AddElement(IDirect3DRMLight* in) = 0;
	virtual HRESULT DeleteElement(IDirect3DRMLight* element) = 0;
};

struct IDirect3DRMVisualArray : public IDirect3DRMArray {
	virtual HRESULT GetElement(DWORD index, IDirect3DRMVisual** out) = 0;
	virtual HRESULT AddElement(IDirect3DRMVisual* in) = 0;
	virtual HRESULT DeleteElement(IDirect3DRMVisual* element) = 0;
};

typedef struct IDirect3DRMFrameArray* LPDIRECT3DRMFRAMEARRAY;
struct IDirect3DRMFrame : public IDirect3DRMVisual {
	virtual HRESULT AddChild(IDirect3DRMFrame* child) = 0;
	virtual HRESULT DeleteChild(IDirect3DRMFrame* child) = 0;
	virtual HRESULT SetSceneBackgroundRGB(float r, float g, float b) = 0;
	virtual HRESULT AddLight(IDirect3DRMLight* light) = 0;
	virtual HRESULT GetLights(IDirect3DRMLightArray** lightArray) = 0;
	virtual HRESULT AddTransform(D3DRMCOMBINETYPE combine, D3DRMMATRIX4D matrix) = 0;
	virtual HRESULT GetPosition(IDirect3DRMFrame* reference, D3DVECTOR* position) = 0;
	virtual HRESULT AddVisual(IDirect3DRMVisual* visual) = 0;
	virtual HRESULT DeleteVisual(IDirect3DRMVisual* visual) = 0;
	virtual HRESULT GetVisuals(IDirect3DRMVisualArray** visuals) = 0;
	virtual HRESULT SetTexture(IDirect3DRMTexture* texture) = 0;
	virtual HRESULT GetTexture(IDirect3DRMTexture** texture) = 0;
	virtual HRESULT SetColor(float r, float g, float b, float a) = 0;
	virtual HRESULT SetColor(D3DCOLOR) = 0;
	virtual HRESULT SetColorRGB(float r, float g, float b) = 0;
	virtual HRESULT SetMaterialMode(D3DRMMATERIALMODE mode) = 0;
	virtual HRESULT GetChildren(IDirect3DRMFrameArray** children) = 0;
};
typedef IDirect3DRMFrame* LPDIRECT3DRMFRAME;

struct IDirect3DRMFrameArray : public IDirect3DRMArray {
	virtual HRESULT GetElement(DWORD index, IDirect3DRMFrame** out) = 0;
	virtual HRESULT AddElement(IDirect3DRMFrame* in) = 0;
	virtual HRESULT DeleteElement(IDirect3DRMFrame* element) = 0;
};

struct IDirect3DRMFrame2 : public IDirect3DRMFrame {};
typedef IDirect3DRMFrame2* LPDIRECT3DRMFRAME2;

struct D3DRMPICKDESC {
	IDirect3DRMVisual* visual;
	IDirect3DRMFrame* frame;
	float dist;
};

struct IDirect3DRMPickedArray : public IDirect3DRMArray {
	virtual HRESULT GetPick(
		DWORD index,
		IDirect3DRMVisual** visual,
		IDirect3DRMFrameArray** frameArray,
		D3DRMPICKDESC* desc
	) = 0;
};
typedef IDirect3DRMPickedArray* LPDIRECT3DRMPICKEDARRAY;

struct IDirect3DRMViewport : public IDirect3DRMObject {
	virtual HRESULT Render(IDirect3DRMFrame* group) = 0;
	virtual HRESULT ForceUpdate(int x, int y, int w, int h) = 0;
	virtual HRESULT Clear() = 0;
	virtual HRESULT SetCamera(IDirect3DRMFrame* camera) = 0;
	virtual HRESULT GetCamera(IDirect3DRMFrame** camera) = 0;
	virtual HRESULT SetProjection(D3DRMPROJECTIONTYPE type) = 0;
	virtual D3DRMPROJECTIONTYPE GetProjection() = 0;
	virtual HRESULT SetFront(D3DVALUE z) = 0;
	virtual D3DVALUE GetFront() = 0;
	virtual HRESULT SetBack(D3DVALUE z) = 0;
	virtual D3DVALUE GetBack() = 0;
	virtual HRESULT SetField(D3DVALUE field) = 0;
	virtual D3DVALUE GetField() = 0;
	virtual DWORD GetWidth() = 0;
	virtual DWORD GetHeight() = 0;
	virtual HRESULT Transform(D3DRMVECTOR4D* screen, D3DVECTOR* world) = 0;
	virtual HRESULT InverseTransform(D3DVECTOR* world, D3DRMVECTOR4D* screen) = 0;
	virtual HRESULT Pick(float x, float y, LPDIRECT3DRMPICKEDARRAY* pickedArray) = 0;
};

struct IDirect3DRMViewportArray : public IDirect3DRMArray {
	virtual HRESULT GetElement(DWORD index, IDirect3DRMViewport** out) = 0;
	virtual HRESULT AddElement(IDirect3DRMViewport* in) = 0;
	virtual HRESULT DeleteElement(IDirect3DRMViewport* element) = 0;
};

struct IDirect3DRMWinDevice : virtual public IDirect3DRMObject {
	virtual HRESULT Activate() = 0;
	virtual HRESULT Paint() = 0;
	virtual void HandleActivate(WORD wParam) = 0;
	virtual void HandlePaint(void* p_dc) = 0;
};

struct IDirect3DRMDevice : virtual public IDirect3DRMObject {
	virtual DWORD GetWidth() = 0;
	virtual DWORD GetHeight() = 0;
	virtual HRESULT SetBufferCount(int count) = 0;
	virtual DWORD GetBufferCount() = 0;
	virtual HRESULT SetShades(DWORD shadeCount) = 0;
	virtual HRESULT GetShades() = 0;
	virtual HRESULT SetQuality(D3DRMRENDERQUALITY quality) = 0;
	virtual D3DRMRENDERQUALITY GetQuality() = 0;
	virtual HRESULT SetDither(BOOL dither) = 0;
	virtual BOOL GetDither() = 0;
	virtual HRESULT SetTextureQuality(D3DRMTEXTUREQUALITY quality) = 0;
	virtual D3DRMTEXTUREQUALITY GetTextureQuality() = 0;
	virtual HRESULT SetRenderMode(D3DRMRENDERMODE mode) = 0;
	virtual D3DRMRENDERMODE GetRenderMode() = 0;
	virtual HRESULT Update() = 0;
	virtual HRESULT AddViewport(IDirect3DRMViewport* viewport) = 0;
	virtual HRESULT GetViewports(IDirect3DRMViewportArray** ppViewportArray) = 0;
};

struct IDirect3DRMDevice2 : virtual public IDirect3DRMDevice {};

struct IDirect3DRM : virtual public IUnknown {
	virtual HRESULT CreateDeviceFromD3D(
		const IDirect3D2* d3d,
		IDirect3DDevice2* d3dDevice,
		IDirect3DRMDevice2** outDevice
	) = 0;
	virtual HRESULT CreateDeviceFromSurface(
		const GUID* guid,
		IDirectDraw* dd,
		IDirectDrawSurface* surface,
		IDirect3DRMDevice2** outDevice
	) = 0;
	virtual HRESULT CreateTexture(D3DRMIMAGE* image, IDirect3DRMTexture2** outTexture) = 0;
	virtual HRESULT CreateTextureFromSurface(LPDIRECTDRAWSURFACE surface, IDirect3DRMTexture2** outTexture) = 0;
	virtual HRESULT CreateMesh(IDirect3DRMMesh** outMesh) = 0;
	virtual HRESULT CreateMaterial(D3DVAL power, IDirect3DRMMaterial** outMaterial) = 0;
	virtual HRESULT CreateLightRGB(D3DRMLIGHTTYPE type, D3DVAL r, D3DVAL g, D3DVAL b, IDirect3DRMLight** outLight) = 0;
	virtual HRESULT CreateFrame(IDirect3DRMFrame* parent, IDirect3DRMFrame2** outFrame) = 0;
	virtual HRESULT CreateViewport(
		IDirect3DRMDevice2* device,
		IDirect3DRMFrame* camera,
		int x,
		int y,
		int width,
		int height,
		IDirect3DRMViewport** outViewport
	) = 0;
	virtual HRESULT SetDefaultTextureShades(DWORD count) = 0;
	virtual HRESULT SetDefaultTextureColors(DWORD count) = 0;
};
typedef IDirect3DRM *LPDIRECT3DRM, **LPLPDIRECT3DRM;

struct IDirect3DRM2 : public IDirect3DRM {};

// Functions
HRESULT WINAPI Direct3DRMCreate(IDirect3DRM** direct3DRM);

D3DCOLOR D3DRMCreateColorRGBA(D3DVALUE red, D3DVALUE green, D3DVALUE blue, D3DVALUE alpha);