//								-*- C++ -*-
// This file is part of the aMule Project.
//
// Copyright (c) 2004-2011 Angel Vidal ( kry@amule.org )
// Copyright (c) 2004-2011 aMule Team ( admin@amule.org / http://www.amule.org )
// Copyright (c) 2003-2011 Barry Dunne (http://www.emule-project.net)
//
// Any parts of this program derived from the xMule, lMule or eMule project,
// or contributed by third-party developers are copyrighted by their
// respective authors.
//
// This program 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 2 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
//

// Note To Mods //
/*
Please do not change anything here and release it..
There is going to be a new forum created just for the Kademlia side of the client..
If you feel there is an error or a way to improve something, please
post it in the forum first and let us look at it.. If it is a real improvement,
it will be added to the offical client.. Changing something without knowing
what all it does can cause great harm to the network if released in mass form..
Any mod that changes anything within the Kademlia side will not be allowed to advertise
there client on the eMule forum..
*/

#ifndef __ROUTING_BIN__
#define __ROUTING_BIN__

#include "Maps.h"
#include "../../Types.h"
#include "../kademlia/Defines.h"
#include "Contact.h"

////////////////////////////////////////
namespace Kademlia {
////////////////////////////////////////

class CUInt128;

class CRoutingBin
{
public:
	CRoutingBin()
		: m_dontDeleteContacts(false)
	{}
	~CRoutingBin();

	bool	  AddContact(CContact *contact);
	void	  SetAlive(CContact *contact);
	void	  SetTCPPort(uint32_t ip, uint16_t port, uint16_t tcpPort);
	void	  RemoveContact(CContact *contact, bool noTrackingAdjust = false)	{ if (!noTrackingAdjust) AdjustGlobalTracking(contact->GetIPAddress(), false); m_entries.remove(contact); }
	CContact *GetContact(const CUInt128 &id) const throw();
	CContact *GetContact(uint32_t ip, uint16_t port, bool tcpPort) const throw();
	CContact *GetOldest() const throw()		{ return m_entries.size() ? m_entries.front() : NULL; }

	uint32_t  GetSize() const throw()		{ return m_entries.size(); }
	void	  GetNumContacts(uint32_t& nInOutContacts, uint32_t& nInOutFilteredContacts, uint8_t minVersion) const throw();
	uint32_t  GetRemaining() const throw()		{ return K - m_entries.size(); }
	void	  GetEntries(ContactList *result, bool emptyFirst = true) const;
	void	  GetClosestTo(uint32_t maxType, const CUInt128 &target, uint32_t maxRequired, ContactMap *result, bool emptyFirst = true, bool setInUse = false) const;
	bool	  ChangeContactIPAddress(CContact *contact, uint32_t newIP);
	void	  PushToBottom(CContact *contact); // puts an existing contact from X to the end of the list
	CContact *GetRandomContact(uint32_t maxType, uint32_t minKadVersion) const;
	void	  SetAllContactsVerified();
	bool	  HasOnlyLANNodes() const throw();

	static bool	CheckGlobalIPLimits(uint32_t ip, uint16_t port);

	bool	m_dontDeleteContacts;

protected:
	static void AdjustGlobalTracking(uint32_t ip, bool increase);

private:
	ContactList m_entries;

	typedef std::map<uint32_t, uint32_t>	GlobalTrackingMap;

	static GlobalTrackingMap	s_globalContactIPs;
	static GlobalTrackingMap	s_globalContactSubnets;
};

} // End namespace

#endif // __ROUTING_BIN__
// File_checked_for_headers