#ifndef VBUFINTERNAL_H
#define VBUFINTERNAL_H

#include <windows.h>
#include "storage.h"
#include "virtualBuffer.h"

typedef struct {
	HWND hwnd;
	HINSTANCE backendHandle;
	VBufStorage_bufferNode_t* storageBuf;
	CRITICAL_SECTION* criticalSectionHandle;
} VBufInternal_bufContainer_t;

typedef LRESULT (*VBufInternal_func_t)(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_isWindowPrepared(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_prepareWindow(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_unprepareWindow(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_createBuffer(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_destroyBuffer(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int offset;
	int foundDocHandle;
	int foundID;
} VBufInternal_lParam_getFieldIdentifierFromBufferOffset;

LRESULT VBufInternal_getFieldIdentifierFromBufferOffset(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int docHandle;
	int ID;
	int startOffset;
	int endOffset;
} VBufInternal_lParam_getBufferOffsetsFromFieldIdentifier;

LRESULT VBufInternal_getBufferOffsetsFromFieldIdentifier(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int direction;
	int startOffset;
	VBuf_multyValueAttribute_t* attribs;
	int numAttribs;
	int foundDocHandle;
	int foundID;
} VBufInternal_lParam_findBufferFieldIdentifierByProperties;

LRESULT VBufInternal_findBufferFieldIdentifierByProperties(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_getBufferTextLength(HWND hwnd, LPARAM lParam);

LRESULT VBufInternal_getBufferFieldCount(HWND hwnd, LPARAM lParam);

typedef struct {
VBufInternal_bufContainer_t* bufContainer;
	wchar_t* text;
	int startOffset;
	int direction;
	int flags;
} VBufInternal_lParam_findBufferText;

LRESULT VBufInternal_findBufferText(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int startOffset;
	int endOffset;
	wchar_t* text;
} VBufInternal_lParam_getBufferTextByOffsets;

LRESULT VBufInternal_getBufferTextByOffsets(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int offset;
	wchar_t* text;
} VBufInternal_lParam_getXMLContextAtBufferOffset;

LRESULT VBufInternal_getXMLContextAtBufferOffset(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int startOffset;
	int endOffset;
	wchar_t* text;
} VBufInternal_lParam_getXMLBufferTextByOffsets;

LRESULT VBufInternal_getXMLBufferTextByOffsets(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int ID;
	int activationType;
} VBufInternal_lParam_activateBufferFieldByID;

LRESULT VBufInternal_activateBufferFieldByID(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int offset;
	int maxLineLength;
	int useScreenLayout; 
	int startOffset;
	int endOffset;
} VBufInternal_lParam_getBufferLineOffsets;

LRESULT VBufInternal_getBufferLineOffsets(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int startOffset;
	int endOffset;
} VBufInternal_lParam_getBufferSelectionOffsets;

LRESULT VBufInternal_getBufferSelectionOffsets(HWND hwnd, LPARAM lParam);

typedef struct {
	VBufInternal_bufContainer_t* bufContainer;
	int startOffset;
	int endOffset;
} VBufInternal_lParam_setBufferSelectionOffsets;

LRESULT VBufInternal_setBufferSelectionOffsets(HWND hwnd, LPARAM lParam);

LRESULT CALLBACK VBufInternal_windowPreparationHook(int code, WPARAM wParam,LPARAM lParam);

LRESULT CALLBACK VBufInternal_wndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);

#endif