#ifndef RIPPLE_IPEERS_H
#define RIPPLE_IPEERS_H

/** Manages the set of connected peers.
*/
class IPeers
{
public:
    static IPeers* New (boost::asio::io_service& io_service);

    virtual ~IPeers () { }

	// Begin enforcing connection policy.
	virtual void start () = 0;

	// Send message to network.
	virtual int relayMessage(Peer* fromPeer, const PackedMessage::pointer& msg) = 0;
	virtual void relayMessageTo(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg) = 0;
	virtual void relayMessageBut(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg) = 0;

	// Manual connection request.
	// Queue for immediate scanning.
	virtual void connectTo(const std::string& strIp, int iPort) = 0;

	//
	// Peer connectivity notification.
	//
	virtual bool getTopNAddrs(int n,std::vector<std::string>& addrs) = 0;
	virtual bool savePeer(const std::string& strIp, int iPort, char code) = 0;

	// We know peers node public key.
	// <-- bool: false=reject
	virtual bool peerConnected(Peer::ref peer, const RippleAddress& naPeer, const std::string& strIP, int iPort) = 0;

	// No longer connected.
	virtual void peerDisconnected(Peer::ref peer, const RippleAddress& naPeer) = 0;

	// As client accepted.
	virtual void peerVerified(Peer::ref peer) = 0;

	// As client failed connect and be accepted.
	virtual void peerClosed(Peer::ref peer, const std::string& strIp, int iPort) = 0;

	virtual int getPeerCount() = 0;
	virtual Json::Value getPeersJson() = 0;
	virtual std::vector<Peer::pointer> getPeerVector() = 0;

	// Peer 64-bit ID function
	virtual uint64 assignPeerId() = 0;
	virtual Peer::pointer getPeerById(const uint64& id) = 0;
	virtual bool hasPeer(const uint64& id) = 0;

	//
	// Scanning
	//

	virtual void scanRefresh() = 0;

	//
	// Connection policy
	//
	virtual void policyLowWater() = 0;
	virtual void policyEnforce() = 0; // VFALCO This and others can be made private

	// configured connections
	virtual void makeConfigured() = 0;
};

// VFALCO TODO Put this in some group of utilities
extern void splitIpPort(const std::string& strIpPort, std::string& strIp, int& iPort);

#endif
// vim:ts=4