/*
	This file is part of cpp-ethereum.

	cpp-ethereum is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	cpp-ethereum is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @file WhisperPeer.h
 * @author Gav Wood <i@gavwood.com>
 * @date 2014
 */

#pragma once

#include <mutex>
#include <array>
#include <set>
#include <memory>
#include <utility>
#include <libdevcore/RLP.h>
#include <libdevcore/Guards.h>
#include <libdevcrypto/SHA3.h>
#include "Common.h"
#include "Message.h"

namespace dev
{
namespace shh
{

using p2p::Session;
using p2p::HostCapabilityFace;
using p2p::HostCapability;
using p2p::Capability;

/**
 */
class WhisperPeer: public Capability
{
	friend class WhisperHost;

public:
	WhisperPeer(Session* _s, HostCapabilityFace* _h, unsigned _i);
	virtual ~WhisperPeer();

	static std::string name() { return "shh"; }
	static u256 version() { return 2; }
	static unsigned messageCount() { return PacketCount; }

	WhisperHost* host() const;

private:
	virtual bool interpret(unsigned _id, RLP const&) override;

	void sendMessages();

	unsigned rating(Message const&) const { return 0; }	// TODO
	void noteNewMessage(h256 _h, Message const& _m);

	mutable dev::Mutex x_unseen;
	std::map<unsigned, h256> m_unseen;	///< Rated according to what they want.
};

}
}