#include "util.h"
#include "tfilepath.h"
#include "texception.h"

#ifdef WIN32
#include <windows.h>
#endif

string convertToUncString(const TFilePath &fp)
{
#ifdef WIN32

	DWORD cbBuff = 1024; // Size of Buffer
	char szBuff[1024];   // Buffer to receive information
	REMOTE_NAME_INFO *prni = (REMOTE_NAME_INFO *)&szBuff;

	// Pointers to head of buffer
	UNIVERSAL_NAME_INFO *puni = (UNIVERSAL_NAME_INFO *)&szBuff;

	DWORD dwResult = WNetGetUniversalName(toString(fp.getWideString()).c_str(),
										  UNIVERSAL_NAME_INFO_LEVEL,
										  (LPVOID)&szBuff,
										  &cbBuff);

	switch (dwResult) {
	case NO_ERROR:
		return puni->lpUniversalName;

	case ERROR_NOT_CONNECTED:
		// The network connection does not exists.
		throw TException("The path specified doesn't refer to a shared folder");

	case ERROR_CONNECTION_UNAVAIL:
		// The device is not currently connected,
		// but it is a persistent connection.
		throw TException("The shared folder is not currently connected");

	default:
		throw TException("Cannot convert the path specified to UNC");
	}

#else
	return fp.getFullPath().c_str();
#endif
}