#ifndef UDP_SERVER_HXX
#define UDP_SERVER_HXX

#include <asio.hpp>
#ifdef USE_SSL
#include <asio/ssl.hpp>
#endif
#include <string>
#include "RequestHandler.hxx"
#include "AsyncUdpSocketBase.hxx"

namespace reTurn {

class StunMessage;

class UdpServer
  : public AsyncUdpSocketBase
{
public:
   /// Create the server to listen on the specified UDP address and port
   explicit UdpServer(asio::io_service& ioService, RequestHandler& requestHandler, const asio::ip::address& address, unsigned short port);
   UdpServer(const UdpServer&) = delete;
   UdpServer(UdpServer&&) = delete;
   ~UdpServer();

   UdpServer& operator=(const UdpServer&) = delete;
   UdpServer& operator=(UdpServer&&) = delete;

   virtual void start() override;

   /// This method is used if this UdpServer supports RFC3489 operation - note turnFraming in constructor must be false
   void setAlternateUdpServers(UdpServer* alternatePort, UdpServer* alternateIp, UdpServer* alternateIpPort);
   bool isRFC3489BackwardsCompatServer();

   ///// Returns the socket for this server
   asio::ip::udp::socket& getSocket();

   void cleanupResponseMap(const asio::error_code& e, UInt128 tid);

private:
   /// Handle completion of a receive operation
   void onReceiveSuccess(const asio::ip::address& address, unsigned short port, const std::shared_ptr<DataBuffer>& data) override;
   void onReceiveFailure(const asio::error_code& e) override;

   /// Handle completion of a send operation
   void onSendSuccess() override;
   void onSendFailure(const asio::error_code& e) override;

   /// Manages turn allocations
   TurnAllocationManager mTurnAllocationManager;

   /// The handler for all incoming requests.
   RequestHandler& mRequestHandler;

   // Stores the local address and port
   asio::ip::address mLocalAddress;
   unsigned short mLocalPort;

   /// The RFC3489 Alternate Server
   UdpServer* mAlternatePortUdpServer;
   UdpServer* mAlternateIpUdpServer;
   UdpServer* mAlternateIpPortUdpServer;

   // Response map (for retransmissions)
   class ResponseEntry
   {
   public:
      ResponseEntry(UdpServer* requestUdpServer, UdpServer* responseUdpServer, StunMessage* responseMessage);
      ~ResponseEntry();

      UdpServer* mResponseUdpServer;
      StunMessage* mResponseMessage;
      asio::steady_timer mCleanupTimer;
   };
   typedef std::map<UInt128, ResponseEntry*> ResponseMap;
   ResponseMap mResponseMap;
};

}

#endif 


/* ====================================================================

 Copyright (c) 2007-2008, Plantronics, Inc.
 All rights reserved.

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    documentation and/or other materials provided with the distribution. 

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    may be used to endorse or promote products derived from this 
    software without specific prior written permission. 

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 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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