// WsClientUniqueIdGenerator.h

#ifndef dial__WsClientUniqueIdGenerator_H
#define dial__WsClientUniqueIdGenerator_H

// Client for uniquei ID service.

#include <string>
#include "dataset_id/UniqueIdGenerator.h"
#include "dial_ws/DialWsClient.h"

namespace dial {

class WsClientUniqueIdGenerator : public UniqueIdGenerator {

private:  // data

  std::string m_context;
  WsClient m_ws;

public:  // methods

  // Constructor.
  //   context is the generator context, e.g. Dataset or Job
  //   url is the address of the server, e.g. 
  //     http://dial.myaddress:8080
  //   usegsi is true to use GSI authentication
  WsClientUniqueIdGenerator(std::string context,
                            std::string url, bool usegsi =true);

  // Destructor.
  ~WsClientUniqueIdGenerator();

public:  // non-const methods

  // Fetch the next ID.
  UniqueId next();

  // Close.
  int close();

public:  // const methods

  // Validity.
  bool is_valid() const;

  // Is global.
  bool is_global() const;

  // Context.
  std::string context() const;

  // Terminate service.
  // Don't call this!
  void terminate_service() const;

  // Output stream.
  std::ostream& ostr(std::ostream& str) const;

};

}  // end namespace dial

#endif