Developing an Approach to Javascript Spaghetti

damn-spaghetti.coffee

Fs = require 'fs'
Path = require 'path'
Flow = require 'async'

class TestingSomething

  organize_basket: ( next_callback ) ->
    @basket = {}
    next_callback null

  buy_3_apples: ( next_callback )->
    @basket.apples = 0 unless @basket.apples
    @basket.apples += 3
    next_callback null

  bake_apple_pie: ( next_callback ) ->
    @basket.apples = 0 unless @basket.apples
    @basket.pies = 0 unless @basket.pies
    if (@basket.apples > 1 )
      @basket.apples -= 2
      @basket.pies += 1
    else
      console.log "No Apples for a Pie"
    next_callback null

  balance: ( next_callback ) ->
    console.log @basket
    next_callback null

  run: () ->
    that = this

    for i in [1..10]
      (
        () ->
          Flow.waterfall([
            that.organize_basket.bind(this)
            that.buy_3_apples.bind(this)
            that.bake_apple_pie.bind(this)
            that.buy_3_apples.bind(this)
            that.balance.bind(this)
          ])
      )()

obj = new TestingSomething()
obj.run()

damn-spaghetti.js

var Flow, Fs, Path, TestingSomething, obj;
Fs = require('fs');
Path = require('path');
Flow = require('async');
TestingSomething = (function() {
  function TestingSomething() {}
  TestingSomething.prototype.organize_basket = function(next_callback) {
    this.basket = {};
    return next_callback(null);
  };
  TestingSomething.prototype.buy_3_apples = function(next_callback) {
    if (!this.basket.apples) {
      this.basket.apples = 0;
    }
    this.basket.apples += 3;
    return next_callback(null);
  };
  TestingSomething.prototype.bake_apple_pie = function(next_callback) {
    if (!this.basket.apples) {
      this.basket.apples = 0;
    }
    if (!this.basket.pies) {
      this.basket.pies = 0;
    }
    if (this.basket.apples > 1) {
      this.basket.apples -= 2;
      this.basket.pies += 1;
    } else {
      console.log("No Apples for a Pie");
    }
    return next_callback(null);
  };
  TestingSomething.prototype.balance = function(next_callback) {
    console.log(this.basket);
    return next_callback(null);
  };
  TestingSomething.prototype.run = function() {
    var i, that, _results;
    that = this;
    _results = [];
    for (i = 1; i <= 10; i++) {
      _results.push((function() {
        return Flow.waterfall([that.organize_basket.bind(this), that.buy_3_apples.bind(this), that.bake_apple_pie.bind(this), that.buy_3_apples.bind(this), that.balance.bind(this)]);
      })());
    }
    return _results;
  };
  return TestingSomething;
})();
obj = new TestingSomething();
obj.run();

output.txt

Wrong Output:
ly@boxdev:~/Desenvolvimento/crocus/util$ cf test
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
{ apples: 40, pies: 10 }
Expected Output:
ly@boxdev:~/Desenvolvimento/crocus/util$ cf test
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }
{ apples: 4, pies: 1 }