std::wstring ConvertRfc822ToLocal(const std::wstring& datetime) {
auto time = ConvertRfc822(datetime);
std::tm local_tm = {0};
if (localtime_s(&local_tm, &time) != 0)
return datetime;
std::string result(100, '\0');
std::strftime(&result.at(0), result.size(),
"%a, %d %b %Y %H:%M:%S", &local_tm);
TIME_ZONE_INFORMATION time_zone_info = {0};
const auto time_zone_id = GetTimeZoneInformation(&time_zone_info);
const auto bias = time_zone_info.Bias + time_zone_info.DaylightBias;
std::wstring sign = bias <= 0 ? L"+" : L"-";
int hh = std::abs(bias) / 60;
int mm = std::abs(bias) % 60;
std::wstring result_with_tz = StrToWstr(result) + L" " + sign +
PadChar(ToWstr(hh), L'0', 2) +
PadChar(ToWstr(mm), L'0', 2);
return result_with_tz;
}
Date::operator std::wstring() const {
// Convert to YYYY-MM-DD
return PadChar(ToWstr(year), '0', 4) + L"-" +
PadChar(ToWstr(month), '0', 2) + L"-" +
PadChar(ToWstr(day), '0', 2);
}