session_info.h

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/*****************************************************************************
BSD 3-Clause License
 
Copyright (c) 2025, kcenon
All rights reserved.
*****************************************************************************/
 
#pragma once
 
#include "internal/core/session_traits.h"
 
#include <chrono>
#include <memory>
 
namespace kcenon::network::core {
 
template <typename SessionType, bool HasActivityTracking>
struct session_info_base;
 
template <typename SessionType>
struct session_info_base<SessionType, true> {
    std::shared_ptr<SessionType> session;
    std::chrono::steady_clock::time_point created_at;
    std::chrono::steady_clock::time_point last_activity;
 
    explicit session_info_base(std::shared_ptr<SessionType> sess)
        : session(std::move(sess))
        , created_at(std::chrono::steady_clock::now())
        , last_activity(created_at) {}
 
    void update_activity() { last_activity = std::chrono::steady_clock::now(); }
 
    [[nodiscard]] auto idle_duration() const -> std::chrono::milliseconds {
        return std::chrono::duration_cast<std::chrono::milliseconds>(
            std::chrono::steady_clock::now() - last_activity);
    }
};
 
template <typename SessionType>
struct session_info_base<SessionType, false> {
    std::shared_ptr<SessionType> session;
 
    explicit session_info_base(std::shared_ptr<SessionType> sess)
        : session(std::move(sess)) {}
};
 
template <typename SessionType>
using session_info_t =
    session_info_base<SessionType,
                      session_traits<SessionType>::has_activity_tracking>;
 
} // namespace kcenon::network::core