git.r.bdr.sh - rbdr/generador-de-insultos/blob - lib/Conjugator.js

   1 'use strict';
   2
   3
   4 var Promise = require('bluebird');
   5 var cheerio = require('cheerio');
   6 require('neon');
   7 var request = require('request');
   8
   9
  10 var Conjugator = Class({}, "Conjugator")({
  11   prototype : {
  12     _baseUrl: "http://www.spanishdict.com/conjugate/",
  13     _selector: "table .ex-tip",
  14
  15     init : function init(config) {
  16       config = config || {};
  17
  18       Object.keys(config).forEach(function (property) {
  19         this[property] = config[property];
  20       }, this);
  21     },
  22
  23     conjugate : function conjugate(verb) {
  24       return new Promise(function (resolve, reject) {
  25         request(this._baseUrl + verb, function (err, res, body) {
  26           var $, result, finalVerb ;
  27           if (err) {
  28             return reject(err);
  29           }
  30           $ = cheerio.load(body);
  31           result = $(this._selector)[10];
  32
  33           if (!result) {
  34             console.log("Verb not found: ", verb);
  35             return reject(new Error("Not a valid verb"));
  36           }
  37
  38           finalVerb = this._extractWord(result);
  39
  40           console.log(verb, finalVerb);
  41           resolve(finalVerb);
  42         }.bind(this));
  43       }.bind(this));
  44     },
  45
  46     _extractWord : function _extractWord(node) {
  47       var word = "", components;
  48
  49       node.children.forEach(function (child) {
  50         if (child.type === "text") {
  51           word += child.data;
  52         } else {
  53           word += this._extractWord(child);
  54         }
  55       }, this);
  56
  57       word = word.split(",")[0]; // multiple conjugations, take 1
  58       components = word.split(" "); // some special cases have two words
  59                                     // use the last, why not
  60
  61       return components[components.length - 1];
  62     }
  63   }
  64 });
  65
  66 module.exports = Conjugator;