#ifndef COMMAND_H
#define COMMAND_H
#include <string>
#include "command_id.h"
#include "cxx_semantics.h"

namespace nitrokey {
    namespace proto {

        template<CommandID cmd_id>
        class Command : semantics::non_constructible {
        public:
            constexpr static CommandID command_id() { return cmd_id; }

            template<typename T>
            std::string dissect(const T &) {
              return std::string("Payload dissection is unavailable");
            }
        };

#define print_to_ss(x) ( ss << " " << (#x) <<":\t" << (x) << std::endl );
namespace stick20{
        enum class PasswordKind : uint8_t {
            User = 'P',
            Admin = 'A',
            AdminPrefixed
        };

        template<CommandID cmd_id, PasswordKind Tpassword_kind = PasswordKind::User, int password_length = 20>
        class PasswordCommand : public Command<cmd_id> {
			constexpr static CommandID _command_id() { return cmd_id; }
        public:
            struct CommandPayload {
                uint8_t kind;
                uint8_t password[password_length];

                std::string dissect() const {
                  std::stringstream ss;
                  print_to_ss( kind );
                  print_to_ss(password);
                  return ss.str();
                }
                void set_kind_admin() {
                  kind = (uint8_t) 'A';
                }
                void set_kind_admin_prefixed() {
                  kind = (uint8_t) 'P';
                }
                void set_kind_user() {
                  kind = (uint8_t) 'P';
                }

                void set_defaults(){
                  set_kind(Tpassword_kind);
                }

                void set_kind(PasswordKind password_kind){
                  switch (password_kind){
                    case PasswordKind::Admin:
                      set_kind_admin();
                    break;
                    case PasswordKind::User:
                      set_kind_user();
                    break;
                    case PasswordKind::AdminPrefixed:
                      set_kind_admin_prefixed();
                      break;
                  }
                };

            } __packed;

            //typedef Transaction<Command<cmd_id>::command_id(), struct CommandPayload, struct EmptyPayload>
            //    CommandTransaction;
			using CommandTransaction = Transaction<cmd_id,  CommandPayload,  EmptyPayload>;
			//using CommandTransaction = Transaction<_command_id(), CommandPayload, EmptyPayload>;

        };
    }
    }
}
#undef print_to_ss

#endif