inbound-group-session.hpp
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inbound-group-session.hpp
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	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2021 Tusooa Zhu <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#pragma once
	#include <libkazv-config.hpp>

	#include <memory>

	#include <maybe.hpp>
	#include <event.hpp>

	#include "crypto-util.hpp"

	namespace Kazv
	{
	struct InboundGroupSessionPrivate;

	class InboundGroupSession
	{
	public:
	explicit InboundGroupSession();
	explicit InboundGroupSession(std::string sessionKey, std::string ed25519Key);

	InboundGroupSession(const InboundGroupSession &that);
	InboundGroupSession(InboundGroupSession &&that);
	InboundGroupSession &operator=(const InboundGroupSession &that);
	InboundGroupSession &operator=(InboundGroupSession &&that);
	~InboundGroupSession();

	MaybeString decrypt(std::string message, std::string eventId, Timestamp originServerTs);

	bool valid() const;

	std::string ed25519Key() const;

	/**
	* Try to merge this session with another session.
	*
	* @param that The other session to merge with.
	* @return true iff the two sessions are mergeable.
	*/
	bool merge(InboundGroupSession &that);
	private:
	friend void to_json(nlohmann::json &j, const InboundGroupSession &s);
	friend void from_json(const nlohmann::json &j, InboundGroupSession &s);
	std::unique_ptr<InboundGroupSessionPrivate> m_d;
	};
	}