#include "utils.h"
#include<Windows.h>

std::wstring string2wstring(std::string str)
{
	std::wstring result;
	//获取缓冲区大小，并申请空间，缓冲区大小按字符计算
	int len = MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), NULL, 0);
	TCHAR* buffer = new TCHAR[len + 1];
	//多字节编码转换成宽字节编码
	MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.size(), buffer, len);
	buffer[len] = '\0'; //添加字符串结尾
	//删除缓冲区并返回值
	result.append(buffer);
	delete[] buffer;
	return result;
}

std::string wstring2string(std::wstring wstr)
{
	std::string result;
	//获取缓冲区大小，并申请空间，缓冲区大小事按字节计算的  
	int len = WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), NULL, 0, NULL, NULL);
	char* buffer = new char[len + 1];
	//宽字节编码转换成多字节编码  
	WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), wstr.size(), buffer, len, NULL, NULL);
	buffer[len] = '\0';
	//删除缓冲区并返回值  
	result.append(buffer);
	delete[] buffer;
	return result;
}



std::string GenerateGuid()
{
	GUID guid;
	CoCreateGuid(&guid);
	char cBuffer[64] = { 0 };
	sprintf_s(cBuffer, sizeof(cBuffer),
		"{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
		guid.Data1, guid.Data2,
		guid.Data3, guid.Data4[0],
		guid.Data4[1], guid.Data4[2],
		guid.Data4[3], guid.Data4[4],
		guid.Data4[5], guid.Data4[6],
		guid.Data4[7]);
	return std::string(cBuffer);
}