/*
* Copyright (c) 2013-2022, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/

#ifndef PROFILING_H__
#define PROFILING_H__

#include <memory>
#include <boost/date_time/posix_time/posix_time.hpp>
#include "Identity.h"

namespace i2p {
    namespace data {
        // sections
        const char PEER_PROFILE_SECTION_PARTICIPATION[] = "participation";
        const char PEER_PROFILE_SECTION_USAGE[] = "usage";
        // params
        const char PEER_PROFILE_LAST_UPDATE_TIME[] = "lastupdatetime";
        const char PEER_PROFILE_PARTICIPATION_AGREED[] = "agreed";
        const char PEER_PROFILE_PARTICIPATION_DECLINED[] = "declined";
        const char PEER_PROFILE_PARTICIPATION_NON_REPLIED[] = "nonreplied";
        const char PEER_PROFILE_USAGE_TAKEN[] = "taken";
        const char PEER_PROFILE_USAGE_REJECTED[] = "rejected";

        const int PEER_PROFILE_EXPIRATION_TIMEOUT = 72; // in hours (3 days)
        const int PEER_PROFILE_AUTOCLEAN_TIMEOUT = 24 * 3600; // in seconds (1 day)
        const int PEER_PROFILE_AUTOCLEAN_VARIANCE = 3 * 3600; // in seconds (3 hours)

        class RouterProfile {
        public:

            RouterProfile();

            RouterProfile &operator=(const RouterProfile &) = default;

            void Save(const IdentHash &identHash);

            void Load(const IdentHash &identHash);

            bool IsBad();

            void TunnelBuildResponse(uint8_t ret);

            void TunnelNonReplied();

        private:

            boost::posix_time::ptime GetTime() const;

            void UpdateTime();

            bool IsAlwaysDeclining() const { return !m_NumTunnelsAgreed && m_NumTunnelsDeclined >= 5; };

            bool IsLowPartcipationRate() const;

            bool IsLowReplyRate() const;

        private:

            boost::posix_time::ptime m_LastUpdateTime;
            // participation
            uint32_t m_NumTunnelsAgreed;
            uint32_t m_NumTunnelsDeclined;
            uint32_t m_NumTunnelsNonReplied;
            // usage
            uint32_t m_NumTimesTaken;
            uint32_t m_NumTimesRejected;
        };

        std::shared_ptr<RouterProfile> GetRouterProfile(const IdentHash &identHash);

        void InitProfilesStorage();

        void DeleteObsoleteProfiles();
    }
}

#endif