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path: root/src/zenserver/sessions/inprocsessionlogsink.cpp
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// Copyright Epic Games, Inc. All Rights Reserved.

#include "inprocsessionlogsink.h"

#include <zencore/logbase.h>

namespace zen {

/// Bias in seconds from DateTime epoch (year 1) to Unix epoch (1970).
static constexpr uint64_t UnixEpochBiasSeconds = uint64_t(double(1970 - 1) * 365.2425) * 86400;

static DateTime
TimePointToDateTime(logging::LogClock::time_point Time)
{
	auto	 Duration = Time.time_since_epoch();
	auto	 Seconds  = std::chrono::duration_cast<std::chrono::seconds>(Duration);
	uint64_t Ticks	  = (UnixEpochBiasSeconds + static_cast<uint64_t>(Seconds.count())) * TimeSpan::TicksPerSecond;
	return DateTime{Ticks};
}

void
InProcSessionLogSink::Log(const logging::LogMessage& Msg)
{
	Ref<SessionsService::Session> Session = m_Service.GetSession(m_SessionId);
	if (!Session)
	{
		return;
	}

	SessionsService::LogEntry Entry{
		.Timestamp = TimePointToDateTime(Msg.GetTime()),
		.Level	   = std::string(logging::ToStringView(Msg.GetLevel())),
		.Message   = std::string(Msg.GetPayload()),
	};

	Session->AppendLog(std::move(Entry));
}

}  // namespace zen