madlib_helper.js

'use strict';
module.change_code = 1;
var _ = require('lodash');

function MadlibHelper (obj) {
  this.started = false;
  this.madlibIndex = 0;
  this.currentStep = 0;
  this.madlibs = [
    {
      title: 'A Cold November Day',
      template: 'It was a ${adjective_1}, cold November day. I awoke to the ${adjective_2} smell of ${type_of_bird} roasting in the ${room_in_house} downstairs. I ${verb_past_tense} down the stairs to see if I could help ${verb} with dinner. My friend said, "See if ${relative_name}" needs a fresh ${noun_1}." So I carried a tray of glasses full of ${a_liquid} into the ${verb_ending_in_ing} room. When I got there, I couldn\'t believe my ${part_of_body_plural}! There were ${plural_noun} ${verb_ending_in_ing_2} on the ${noun_2}!',
      steps: [
        {
          value: null,
          template_key: 'adjective_1',
          prompt: 'an Adjective',
          help: 'Speak an adjective to add it to the madlib. An adjective is a word that modifies a noun (or pronoun) to make it more specific: a rotten egg, a cloudy day, or a tall, cool glass of water. What adjective would you like?'
        },
        {
          value: null,
          template_key: 'adjective_2',
          prompt: 'another Adjective',
          help: 'Speak an adjective to add it to the madlib. An adjective is a word that modifies a noun (or pronoun) to make it more specific: a rotten egg, a cloudy day, or a tall, cool glass of water. What adjective would you like?'
        },
        {
          value: null,
          template_key: 'type_of_bird',
          prompt: 'a Type of bird',
          help: 'Speak a type of bird to add it to the madlib. What type of bird would you like?',
        },
        {
          value: null,
          template_key: 'room_in_house',
          prompt: 'a name of Room in a house',
          help: 'Speak a name of a room in a house. What room in a house would you like?',
        },
        {
          value: null,
          template_key: 'verb_past_tense',
          prompt: 'a past tense verb',
          help: 'Speak a past tense verb to add it to the madlib. A past tense verb expresses activity, action, state, or being in the past. What past tense verb would you like?'
        },
        {
          value: null,
          template_key: 'verb',
          prompt: 'a verb',
          help: 'speak a verb to add it to the madlib. A verb is a word used to describe an action, state, or occurence and forming the main part of the predicate in a sentence, such as hear, become, happen. What verb would you like?'
        },
        {
          value: null,
          template_key: 'relative_name',
          prompt: 'a relative\'s name',
          help: 'Speak a relative\'s name to add it to the madlib. What relative\'s name would you like?'
        },
        {
          value: null,
          template_key: 'noun_1',
          prompt: 'a noun',
          help: 'Speak a noun to add it to the madlib. A noun used to identify any of a class of people, places, or things. What noun would you like?'
        },
        {
          value: null,
          template_key: 'a_liquid',
          prompt: 'a liquid',
          help: 'Speak a type of liquid to add it to the madlib. For example, kool-aid, lava, or orange juice are all liquids. What liquid do you want to add?'
        },
        {
          value: null,
          template_key: 'verb_ending_in_ing',
          prompt: 'a verb ending in ing',
          help: 'Speak a verb ending in ing to add it to the madlib. Running, living, or singing are all examples. What verb ending in ing do you want to add?'
        },
        {
          value: null,
          template_key: 'part_of_body_plural',
          prompt: 'a plural part of the body',
          help: 'Speak a plural part of the body to add it to the madlib. For example, fingers, eyes, or ears. What plural part of the body do you want to add?'
        },
        {
          value: null,
          template_key: 'plural_noun',
          prompt: 'a plural noun',
          help: 'Speak a plural noun to add it to the madlib. What plural noun do you want to add?'
        },
        {
          value: null,
          template_key: 'verb_ending_in_ing_2',
          prompt: 'a verb ending in ing',
          help: 'Speak a verb ending in ing to add it to the madlib. Running, living, or singing are all examples. What verb ending in ing do you want to add?'
        },
        {
          value: null,
          template_key: 'noun_2',
          prompt: 'a noun',
          help: 'Speak a noun to add it to the madlib. A noun used to identify any of a class of people, places, or things. For example, pencil, jelly bean, and Bill Clinton are all nouns. What noun would you like?'
        }
      ]
    }
  ];
  for (var prop in obj) this[prop] = obj[prop];
}

MadlibHelper.prototype.completed = function() {
  return this.currentStep === (this.currentMadlib().steps.length - 1);
};

MadlibHelper.prototype.getPrompt = function() {
  return this.getStep().prompt;
};

MadlibHelper.prototype.getStep = function() {
  return this.currentMadlib().steps[this.currentStep];
};

MadlibHelper.prototype.buildMadlib = function() {
  var currentMadlib = this.currentMadlib();
  var templateValues = _.reduce(currentMadlib.steps, function(accumulator, step) {
    accumulator[step.template_key] = step.value;
    return accumulator;
  }, {});
  var compiledTemplate = _.template(currentMadlib.template);
  return compiledTemplate(templateValues);
};


MadlibHelper.prototype.currentMadlib = function() {
  return this.madlibs[this.madlibIndex];
};

module.exports = MadlibHelper;