#pragma once

#include <Windows.h>
#include <tchar.h>
#include <string>
#include <vector>
#include <system_error>

// マルチバイト文字列をワイド文字列（UNICODE）に変換
std::wstring Multi2Wide(std::string const& src)
{
	auto const dest_size = ::MultiByteToWideChar(CP_ACP, 0U, src.data(), -1, nullptr, 0U);
	std::vector<wchar_t> dest(dest_size, L'\0');
	if (::MultiByteToWideChar(CP_ACP, 0U, src.data(), -1, dest.data(), (int)dest.size()) == 0) {
		throw std::system_error{ static_cast<int>(::GetLastError()), std::system_category() };
	}
	dest.resize(std::char_traits<wchar_t>::length(dest.data()));
	dest.shrink_to_fit();
	return std::wstring(dest.begin(), dest.end());
}

// 書式付きデバッグ出力
int DebugPrintf(LPCTSTR format, ...)
{
	va_list args;
	va_start(args, format);

	int len = _vsctprintf(format, args) + 1;
	TCHAR* buf = (TCHAR*)malloc(len * sizeof(TCHAR));
	len = _vstprintf_s(buf, len - 1, format, args);

	OutputDebugString(buf);
	free(buf);

	return len;
}