#ifndef _RASAPI_RASAPI_HPP_
#define _RASAPI_RASAPI_HPP_
#ifndef _COMMON_WINDOWS_HPP_
#include <common/windows.hpp>
#endif
#ifndef _COMMON_RAS_HPP_
#include <common/ras.hpp>
#endif

class RasApi
{
public:
	RasApi(void);
  RasApi(const RasApi &someRasApi);
	virtual ~RasApi();
	RasApi &operator=(const RasApi &someRasApi);
  DWORD rasDial(LPRASDIALEXTENSIONS lpRasDialExtensions,LPTSTR lpszPhonebook,LPRASDIALPARAMS lpRasDialParams,DWORD dwNotifierType,LPVOID lpvNotifier,LPHRASCONN lphRasConn);	
  DWORD rasEnumConnections(LPRASCONN lprasconn,LPDWORD lpcb,LPDWORD lpcConnections);
	DWORD rasEnumEntries(LPTSTR reserved,LPTSTR lpszPhonebook,LPRASENTRYNAME lprasentryname,LPDWORD lpcb,LPDWORD lpcEntries);
	DWORD rasGetConnectStatus(HRASCONN hrasconn,LPRASCONNSTATUS lprasconnstatus);
	DWORD rasGetErrorString(UINT uErrorValue,LPTSTR lpszErrorString,DWORD cBufSize);	
	DWORD rasHangUp(HRASCONN hrasconn);
	DWORD rasGetProjectionInfo(HRASCONN hrasconn,RASPROJECTION rasprojection,LPVOID lpprojection,LPDWORD lpcb);
	DWORD rasCreatePhonebookEntry(HWND hwnd,LPSTR lpszPhonebook);
	DWORD rasEditPhonebookEntry(HWND hwnd,LPSTR lpszPhonebook,LPSTR lpszEntryName);
	DWORD rasSetEntryDialParams(LPSTR lpszPhonebook,LPRASDIALPARAMS lprasdialparams,BOOL fRemovePassword);
	DWORD rasGetEntryDialParams(LPTSTR lpszPhonebook,LPRASDIALPARAMS lprasdialparams,LPBOOL lpfPassword);
  WORD isOkay(void)const;
private:
	typedef DWORD (APIENTRY *LPFNRASDIAL)(LPRASDIALEXTENSIONS,LPSTR,LPRASDIALPARAMSA,DWORD,LPVOID,LPHRASCONN);
	typedef DWORD (APIENTRY *LPFNRASENUMCONNECTIONS)(LPRASCONNA,LPDWORD,LPDWORD);
	typedef DWORD (APIENTRY *LPFNRASENUMENTRIES)(LPSTR,LPSTR,LPRASENTRYNAMEA,LPDWORD,LPDWORD);
	typedef DWORD (APIENTRY *LPFNRASGETCONNECTSTATUS)(HRASCONN,LPRASCONNSTATUSA);
	typedef DWORD (APIENTRY *LPFNRASGETERRORSTRING)(UINT,LPSTR,DWORD);
	typedef DWORD (APIENTRY *LPFNRASHANGUP)(HRASCONN);
	typedef DWORD (APIENTRY *LPFNRASGETPROJECTIONINFO)(HRASCONN,RASPROJECTION,LPVOID,LPDWORD);
	typedef DWORD (APIENTRY *LPFNRASCREATEPHONEBOOKENTRY)(HWND,LPSTR);
	typedef DWORD (APIENTRY *LPFNRASEDITPHONEBOOKENTRY)(HWND,LPSTR,LPSTR);
	typedef DWORD (APIENTRY *LPFNRASSETENTRYDIALPARAMS)(LPSTR,LPRASDIALPARAMSA,BOOL);
	typedef DWORD (APIENTRY *LPFNRASGETENTRYDIALPARAMS)(LPSTR,LPRASDIALPARAMSA,LPBOOL);
	void loadRasLib(void);
	void freeRasLib(void);
	void getEntryPoints(void);

	HINSTANCE mhRasLib;
	LPFNRASDIAL mlpfnRasDial;
	LPFNRASENUMCONNECTIONS mlpfnRasEnumConnections;
	LPFNRASENUMENTRIES mlpfnRasEnumEntries;
	LPFNRASGETCONNECTSTATUS mlpfnRasGetConnectStatus;
	LPFNRASGETERRORSTRING mlpfnRasGetErrorString;
	LPFNRASHANGUP mlpfnRasHangup;
	LPFNRASGETPROJECTIONINFO mlpfnRasGetProjectionInfo;
	LPFNRASCREATEPHONEBOOKENTRY mlpfnRasCreatePhonebookEntry;
	LPFNRASEDITPHONEBOOKENTRY mlpfnRasEditPhonebookEntry;
	LPFNRASSETENTRYDIALPARAMS mlpfnRasSetEntryDialParams;
	LPFNRASGETENTRYDIALPARAMS mlpfnRasGetEntryDialParams;
};

inline
RasApi::RasApi(void)
: mhRasLib(0), mlpfnRasDial(0), mlpfnRasEnumConnections(0), mlpfnRasEnumEntries(0),
	mlpfnRasGetConnectStatus(0), mlpfnRasGetErrorString(0), mlpfnRasHangup(0),
	mlpfnRasGetProjectionInfo(0), mlpfnRasCreatePhonebookEntry(0),
	mlpfnRasEditPhonebookEntry(0), mlpfnRasSetEntryDialParams(0),
	mlpfnRasGetEntryDialParams(0)
{
	loadRasLib();
  getEntryPoints();
}

inline
RasApi::RasApi(const RasApi &someRasApi)
{
	*this=someRasApi;
}

inline
RasApi::~RasApi()
{
  freeRasLib();
}

inline
RasApi &RasApi::operator=(const RasApi &/*someRasApi*/)
{
	loadRasLib();
	getEntryPoints();
  return *this;
}

inline
void RasApi::loadRasLib(void)
{
  freeRasLib();
	mhRasLib=::LoadLibrary("RASAPI32");
	if(!mhRasLib)return;
}

inline
void RasApi::freeRasLib(void)
{
	if(!mhRasLib)return;
	::FreeLibrary(mhRasLib);
  mhRasLib=0;
}

inline
void RasApi::getEntryPoints(void)
{
	if(!mhRasLib)return;
	mlpfnRasDial=(LPFNRASDIAL)::GetProcAddress(mhRasLib,"RasDialA");
	mlpfnRasEnumConnections=(LPFNRASENUMCONNECTIONS)::GetProcAddress(mhRasLib,"RasEnumConnectionsA");
	mlpfnRasEnumEntries=(LPFNRASENUMENTRIES)::GetProcAddress(mhRasLib,"RasEnumEntriesA");
	mlpfnRasGetConnectStatus=(LPFNRASGETCONNECTSTATUS)::GetProcAddress(mhRasLib,"RasGetConnectStatusA");
	mlpfnRasGetErrorString=(LPFNRASGETERRORSTRING)::GetProcAddress(mhRasLib,"RasGetErrorStringA");
	mlpfnRasHangup=(LPFNRASHANGUP)::GetProcAddress(mhRasLib,"RasHangUpA");
	mlpfnRasGetProjectionInfo=(LPFNRASGETPROJECTIONINFO)::GetProcAddress(mhRasLib,"RasGetProjectionInfoA");
	mlpfnRasCreatePhonebookEntry=(LPFNRASCREATEPHONEBOOKENTRY)::GetProcAddress(mhRasLib,"RasCreatePhonebookEntryA");
	mlpfnRasEditPhonebookEntry=(LPFNRASEDITPHONEBOOKENTRY)::GetProcAddress(mhRasLib,"RasEditPhonebookEntryA");
	mlpfnRasSetEntryDialParams=(LPFNRASSETENTRYDIALPARAMS)::GetProcAddress(mhRasLib,"RasSetEntryDialParamsA");
	mlpfnRasGetEntryDialParams=(LPFNRASGETENTRYDIALPARAMS)::GetProcAddress(mhRasLib,"RasGetEntryDialParamsA");
}

inline
DWORD RasApi::rasDial(LPRASDIALEXTENSIONS lpRasDialExtensions,LPTSTR lpszPhonebook,LPRASDIALPARAMS lpRasDialParams,DWORD dwNotifierType,LPVOID lpvNotifier,LPHRASCONN lphRasConn)
{
	if(!mlpfnRasDial)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasDial(lpRasDialExtensions,lpszPhonebook,lpRasDialParams,dwNotifierType,lpvNotifier,lphRasConn);
}

inline
DWORD RasApi::rasEnumConnections(LPRASCONN lprasconn,LPDWORD lpcb,LPDWORD lpcConnections)
{
	if(!mlpfnRasEnumConnections)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasEnumConnections(lprasconn,lpcb,lpcConnections);
}

inline
DWORD RasApi::rasEnumEntries(LPTSTR reserved,LPTSTR lpszPhonebook,LPRASENTRYNAME lprasentryname,LPDWORD lpcb,LPDWORD lpcEntries)
{
	if(!mlpfnRasEnumEntries)return ERROR_NOT_ENOUGH_MEMORY;
	return mlpfnRasEnumEntries(reserved,lpszPhonebook,lprasentryname,lpcb,lpcEntries);
}

inline
DWORD RasApi::rasGetConnectStatus(HRASCONN hrasconn,LPRASCONNSTATUS lprasconnstatus)	
{
	if(!mlpfnRasGetConnectStatus)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasGetConnectStatus(hrasconn,lprasconnstatus);
}

inline
DWORD RasApi::rasGetErrorString(UINT uErrorValue,LPTSTR lpszErrorString,DWORD cBufSize)
{
	if(!mlpfnRasGetErrorString)return ERROR_NOT_ENOUGH_MEMORY;
	return mlpfnRasGetErrorString(uErrorValue,lpszErrorString,cBufSize);	
}

inline
DWORD RasApi::rasHangUp(HRASCONN hrasconn)
{
	if(!mlpfnRasHangup)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasHangup(hrasconn);
}

inline
DWORD RasApi::rasGetProjectionInfo(HRASCONN hrasconn,RASPROJECTION rasprojection,LPVOID lpprojection,LPDWORD lpcb)
{
	if(!mlpfnRasGetProjectionInfo)return ERROR_NOT_ENOUGH_MEMORY;
	return mlpfnRasGetProjectionInfo(hrasconn,rasprojection,lpprojection,lpcb);
}

inline
DWORD RasApi::rasCreatePhonebookEntry(HWND hwnd,LPSTR lpszPhonebook)
{
	if(!mlpfnRasCreatePhonebookEntry)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasCreatePhonebookEntry(hwnd,lpszPhonebook);
}

inline
DWORD RasApi::rasEditPhonebookEntry(HWND hwnd,LPSTR lpszPhonebook,LPSTR lpszEntryName)
{
	if(!mlpfnRasEditPhonebookEntry)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasEditPhonebookEntry(hwnd,lpszPhonebook,lpszEntryName);
}

inline
DWORD RasApi::rasSetEntryDialParams(LPSTR lpszPhonebook,LPRASDIALPARAMS lprasdialparams,BOOL fRemovePassword)
{
	if(!mlpfnRasSetEntryDialParams)return ERROR_NOT_ENOUGH_MEMORY;
  return mlpfnRasSetEntryDialParams(lpszPhonebook,lprasdialparams,fRemovePassword);
}

inline
DWORD RasApi::rasGetEntryDialParams(LPTSTR lpszPhonebook,LPRASDIALPARAMS lprasdialparams,LPBOOL lpfPassword)	
{
	if(!mlpfnRasGetEntryDialParams)return ERROR_NOT_ENOUGH_MEMORY;
	return mlpfnRasGetEntryDialParams(lpszPhonebook,lprasdialparams,lpfPassword);
}

inline
WORD RasApi::isOkay(void)const
{
  return (mhRasLib?TRUE:FALSE);
}
#endif