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[rbdr/generador-de-insultos] / lib / InsultGenerator.js
1 'use strict';
2
3
4 var fs = require('fs');
5
6 var Promise = require('bluebird');
7 require('neon');
8
9 var Conjugator = require('./Conjugator');
10
11 var InsultGenerator = Class({}, "InsultGenerator")({
12 prototype : {
13 file : null,
14 verbs: null,
15 nouns: null,
16
17 _maxTries: 10,
18 _loaded: false,
19 _verbRe: /^[0-9]+\-v\s+?lemma\s+?([^ ]+)/,
20 _nounRe: /^[0-9]+\-n\s+?lemma\s+?([^ ]+)/,
21 _conjugator: null,
22
23 init : function init(config) {
24 config = config || {};
25
26 Object.keys(config).forEach(function (property) {
27 this[property] = config[property];
28 }, this);
29
30 this._conjugator = new Conjugator();
31 },
32
33 generate : function generate(config) {
34 var selectedVerb;
35 return this._load()
36 .then(function () {
37 return this._getVerb();
38 }.bind(this)).then(function (verb) {
39 return this._conjugateVerb(verb);
40 }.bind(this)).then(function (conjugatedVerb) {
41 selectedVerb = conjugatedVerb;
42 return this._getNoun();
43 }.bind(this)).then(function (noun) {
44 return this._generateInsult(selectedVerb, noun);
45 }.bind(this));
46 },
47
48 _load : function _load() {
49 return this._loadFile()
50 .then(function () {
51 return this._loadVerbs();
52 }.bind(this)).then(function () {
53 return this._loadNouns();
54 }.bind(this));
55 },
56
57 _loadFile : function _loadFile() {
58 return new Promise(function (resolve, reject) {
59 if (this._loaded) {
60 return resolve();
61 }
62
63 fs.readFile(this.file, {encoding: 'utf8'}, function (err, contents) {
64 if (err) {
65 return reject(err);
66 }
67
68 this._contents = contents;
69 this._loaded = true;
70 resolve();
71 }.bind(this));
72 }.bind(this));
73 },
74
75 _loadVerbs : function _loadVerbs() {
76 return new Promise(function (resolve, reject) {
77 if (this.verbs) {
78 return resolve();
79 }
80
81 this.verbs = [];
82 this._contents.split('\n').forEach(function (line) {
83 var matches;
84 matches = line.match(this._verbRe);
85
86 if (matches) {
87 if (this.verbs.indexOf(matches[1]) === -1) {
88 this.verbs.push(matches[1])
89 }
90 }
91 }, this);
92
93 resolve();
94 }.bind(this));
95 },
96
97 _loadNouns : function _loadNouns() {
98 return new Promise(function (resolve, reject) {
99 if (this.nouns) {
100 return resolve();
101 }
102
103 this.nouns = [];
104 this._contents.split('\n').forEach(function (line) {
105 var matches;
106 matches = line.match(this._nounRe);
107
108 if (matches) {
109 if (this.nouns.indexOf(matches[1]) === -1) {
110 this.nouns.push(matches[1])
111 }
112 }
113 }, this);
114
115 resolve();
116 }.bind(this));
117 },
118
119 _getVerb : function _getVerb() {
120 var index;
121 index = Math.floor(Math.random()*this.verbs.length);
122 return Promise.resolve(this.verbs[index]);
123 },
124
125 _conjugateVerb : function _conjugateVerb(verb) {
126 return new Promise(function (resolve, reject) {
127 var tries;
128
129 tries = 0;
130
131 var attemptConjugation = function attemptConjugation(verb, tries) {
132 if (tries > this._maxTries) {
133 return reject(new Error("Couldn't find a proper verb"));
134 };
135
136 this._conjugator.conjugate(verb)
137 .then(function (conjugatedVerb) {
138 resolve(conjugatedVerb);
139 })
140 .catch(function (err) {
141 this._getVerb().then(function (verb) {
142 attemptConjugation.bind(this)(verb, tries + 1);
143 }.bind(this))
144 }.bind(this));
145 };
146
147 setTimeout(attemptConjugation.bind(this, verb, 0), 0);
148 }.bind(this));
149 },
150
151 _getNoun : function _getNoun() {
152 var index;
153 index = Math.floor(Math.random()*this.nouns.length);
154 return Promise.resolve(this.nouns[index]);
155 },
156
157 _generateInsult : function _generateInsult(verb, noun) {
158 return Promise.resolve(verb + this._pluralize(noun));
159 },
160
161 // Super dumb pluralizer
162 _pluralize : function _pluralize(noun) {
163 console.log(noun);
164 if (["a","e","i","o","u"].indexOf(noun[noun.length - 1]) >= 0) {
165 return noun + "s"
166 }
167
168 return noun + "es";
169 }
170 }
171 });
172
173 module.exports = InsultGenerator;