texting_buds.js

App = function(sender, store) {
  return: {
    ...
    next: function(person) {
      store.getBuddiesWaiting(function(buddies) {
        if(buddies.length === 0) {
          store.addBuddyWaiting(person, function() {
            sender.emptyQueueSms(person);
          });
        }
      });
    },
  };
};