mirror of
https://github.com/ciphervance/supercell-wx.git
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130 lines
3.3 KiB
C++
130 lines
3.3 KiB
C++
// Prevent redefinition of __cpp_lib_format
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#if defined(_MSC_VER)
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# include <yvals_core.h>
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#endif
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// Enable chrono formatters
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#ifndef __cpp_lib_format
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# define __cpp_lib_format 202110L
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#endif
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#include <scwx/util/time.hpp>
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#include <scwx/util/enum.hpp>
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#include <sstream>
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#include <unordered_map>
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#include <boost/algorithm/string.hpp>
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#if !defined(_MSC_VER)
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# include <date/date.h>
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#endif
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namespace scwx
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{
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namespace util
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{
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static const std::unordered_map<ClockFormat, std::string> clockFormatName_ {
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{ClockFormat::_12Hour, "12-hour"},
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{ClockFormat::_24Hour, "24-hour"},
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{ClockFormat::Unknown, "?"}};
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SCWX_GET_ENUM(ClockFormat, GetClockFormat, clockFormatName_)
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const std::string& GetClockFormatName(ClockFormat clockFormat)
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{
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return clockFormatName_.at(clockFormat);
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}
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std::chrono::system_clock::time_point TimePoint(uint32_t modifiedJulianDate,
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uint32_t milliseconds)
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{
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using namespace std::chrono;
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using sys_days = time_point<system_clock, days>;
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constexpr auto epoch = sys_days {1969y / December / 31d};
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return epoch + (modifiedJulianDate * 24h) +
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std::chrono::milliseconds {milliseconds};
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}
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std::string TimeString(std::chrono::system_clock::time_point time,
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ClockFormat clockFormat,
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const time_zone* timeZone,
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bool epochValid)
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{
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using namespace std::chrono;
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#if defined(_MSC_VER)
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# define FORMAT_STRING_24_HOUR "{:%Y-%m-%d %H:%M:%S %Z}"
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# define FORMAT_STRING_12_HOUR "{:%Y-%m-%d %I:%M:%S %p %Z}"
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#else
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# define FORMAT_STRING_24_HOUR "%Y-%m-%d %H:%M:%S %Z"
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# define FORMAT_STRING_12_HOUR "%Y-%m-%d %I:%M:%S %p %Z"
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using namespace date;
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#endif
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auto timeInSeconds = time_point_cast<seconds>(time);
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std::ostringstream os;
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if (epochValid || time.time_since_epoch().count() != 0)
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{
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if (timeZone != nullptr)
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{
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zoned_time zt = {timeZone, timeInSeconds};
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if (clockFormat == ClockFormat::_24Hour)
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{
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os << format(FORMAT_STRING_24_HOUR, zt);
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}
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else
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{
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os << format(FORMAT_STRING_12_HOUR, zt);
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}
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}
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else
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{
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if (clockFormat == ClockFormat::_24Hour)
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{
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os << format(FORMAT_STRING_24_HOUR, timeInSeconds);
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}
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else
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{
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os << format(FORMAT_STRING_12_HOUR, timeInSeconds);
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}
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}
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}
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return os.str();
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}
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template<typename T>
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std::optional<std::chrono::sys_time<T>>
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TryParseDateTime(const std::string& dateTimeFormat, const std::string& str)
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{
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using namespace std::chrono;
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#if !defined(_MSC_VER)
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using namespace date;
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#endif
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std::optional<std::chrono::sys_time<T>> value = std::nullopt;
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std::chrono::sys_time<T> dateTime;
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std::istringstream ssDateTime {str};
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ssDateTime >> parse(dateTimeFormat, dateTime);
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if (!ssDateTime.fail())
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{
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value = dateTime;
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}
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return value;
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}
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template std::optional<std::chrono::sys_time<std::chrono::seconds>>
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TryParseDateTime<std::chrono::seconds>(const std::string& dateTimeFormat,
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const std::string& str);
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} // namespace util
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} // namespace scwx
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