Cases Intent (Dailyrounds Assitant)

cases.js

/**
* This handles 'Latest 10 cases in Radiology' from the user. It receives
* $rounds_pref (from rounds_preference entity) as in which speciality is being asked for,
* $cases tells total number of cases asked for
* $is_best_cases tells whether the user wants 'Top' or 'Best' cases
*/
app.intent('cases', (conv, {rounds_pref, cases, is_best_cases}) => {
  //default 5 cases
  if(!cases)
    cases = 5;

  //choose 'best' from rounds_map if 'Top' or 'Best' cases
  //are asked for
  if(is_best_cases)
    rounds_pref = 'best';

  const savedRoundsPref = conv.user.storage.rounds;

  //$rounds_pref was not found and also the user hasn't saved his preference
  if(!conv.contexts.get('name_permission-followup') && !rounds_pref && !savedRoundsPref) {
    conv.ask(`We don't seem to know your preference of speciality. Would you like us to remember that for you?`);
    return conv.ask(new Suggestions('Yes', 'No'));
  } else {
    const rounds = (!rounds_pref) ? ((!savedRoundsPref) ? rounds_map['primary'] : savedRoundsPref) : rounds_map[rounds_pref];

    /**
    * Check whether the current platform on which Google Assistant is running
    * has a display capability.
    */
    if(!conv.surface.capabilities.has('actions.capability.SCREEN_OUTPUT'))
      return conv.close('Sorry we cannot run on Google Home at the moment');

    return fetchCasesAndDisplay(rounds, cases, conv);
  }
});