#ifndef _CONVERSATION_H
 #define _CONVERSATION_H
 

 #include <string>

 #include <memory>

 #include "request.h"

 #include "pam.h"

 struct conversation_result {
     std::string user_name;
     std::string token;

 };
 

 class conversation_ifc

 {
 public:

     virtual conversation_result initiate (const pam_request &request)

     {

         return { "", "" };

     }

 };

 class conversation: public conversation_ifc

 {
 private:

     std::shared_ptr<conversation_ifc> delegate_;

 public:

     conversation (const std::shared_ptr<conversation_ifc> &delegate) :

         delegate_ (delegate) {}

     conversation() : conversation (std::shared_ptr<conversation_ifc>
                                        (new conversation_ifc)) {}
     conversation_result initiate (const pam_request &request)

     {

         return delegate_->initiate (request);

     }

 };

 inline conversation wrap (conversation_ifc *delegate)
 {
     return conversation (std::shared_ptr<conversation_ifc> (delegate));
 };
 

 conversation create_conversation(pam &pam);
 

 #endif