#include <boost/asio.hpp>

/*! \brief mdHost
 *         General abstraction of all MD clients
 *
 *  For historical reasons all clients are considered to be
 *  devices. The central device of the system has zero
 *  device type.
 *
 */
 
using namespace std;
using boost::asio::ip::udp;

template<class T>
class mdHost {
public:

  bool                           isSingleton;
  int                            clieverGroup,      // masterDaemonConfig.thisMachineContext
                                 handle,mdStdDevIdx;
  md_device                      type;
  mdState                        state;

  udp::endpoint                  ip;

  // Superset of the RFC speced
  InstructionSet                 cmds;

  // Some parameters initially here are now all uniformly ODEs
  // defined in the COOL scripts.

  ~mdHost() {}
  mdHost(md_device t) : type(t)    {clieverGroup = handle = mdStdDevIdx = -1;}

          T*       registeR(md_device t);

  void             registerCmd(const char *cmdName,const mdIncoming &mdI);
  
};

class mdClientServer;
class mdClientServer : public mdHost<mdClientServer> {
public:
 
  mdClientServer() : mdHost<mdClientServer>( MDDEV_CD ) {};
  mdClientServer  *validateClient(int handle, mdResponse &r);
};

class mdMachine;
class mdMachine : public mdHost<mdMachine> {
public:

  mdMachine() : mdHost<mdMachine>( MACHINE ) {}

  mdMachine       *validateClient(int handle, const mdClientBirth &c, mdResponse &r);
  void             registerCmd(const char *cmdName,const mdIncoming &mdI);
};


class mdPeer;
class mdPeer : public mdHost<mdPeer> {
public:

  mdPeer() : mdHost<mdPeer>( MDDEV_PEER )
  {
	    cmds["RST"] = new mdCommand((md_mand)0,std::string("RST"));
  }
  mdPeer   *validateClient(int handle, const mdClientBirth &c, mdResponse &r);
  void            registerCmd(const char *cmdName,const mdIncoming &mdI);
};

class masterDaemon;
class mdHostFabrik : public mdHost<masterDaemon> 
{public:

   mdHostFabrik() : mdHost<masterDaemon>( MDDEV_MD ) {}
   void        newFromHeartbeat(const mdClientBirth &itsAWhat);
   std::string newFromAPI(md_device type,std::string signature);

};