#include "dual_control.h"

 #include "conversation.h"
 #include "validator.h"

 class impl : public dual_control_ifc {

     private:
        conversations conversations_;
        validator validator_;

        logger logger_;

     public:

         impl(const dual_control_configuration &configuration);

         int authenticate(pam_handle *handle, int flags, const std::vector<const std::string> &arguments );
         int setcred(pam_handle *handle, int flags, const std::vector<const std::string> &arguments);
 };

 impl::impl(const dual_control_configuration &configuration) :
     conversations_(configuration.conversations),

     validator_(configuration.validator),
     logger_(configuration.logger) {}

 int impl::setcred(pam_handle *handle, int flags, const std::vector<const std::string> &arguments) {
     return PAM_SUCCESS;

 }

 int impl::authenticate(pam_handle *handle, int flags, const std::vector<const std::string> &arguments) {

     conversation_result conversation = conversations_.initiate_conversation();

     std::string user_name = conversation.user_name();
     std::string token = conversation.token();

     int auth_result = validator_->validate(user_name, token) ? PAM_SUCCESS : PAM_AUTH_ERR;
 

     logger_.log(auth_result, user_name, token);

     return auth_result;

 }

 dual_control create_dual_control(const dual_control_configuration &configuration) {
     return dual_control(new impl(configuration));

 }