codesnippet

var request = require('request')
var cheerio = require('cheerio')
var google = require("google")
google.resultsPerPage = 1

function fetch(arg) {

	let query = arg
	let language = "python"

	newsearch(query, language).then((url) => {
	  console.log('Found google results!')
	  console.log(url)
	  return download(url)
	}).then((html) => {
	  	let answer = scrape(html)
	  	if (answer === '') {
	    console.log('No answer found :(')
	  } else {
	    console.log('Found snippet!')
	    console.log(answer)
	  }
	}).catch((error) => {
	  console.log(error.reason)
	})
}

function newsearch(query, language) {
  return new Promise((resolve, reject) => {
    let searchString = `${query} in ${language} site:stackoverflow.com`

    google(searchString, (err, res) => {
      if (err) {
        reject({
          reason: 'A search error has occured :('
        })
      } else if (res.links.length === 0) {
        reject({
          reason: 'No results found :('
        })
      } else {
        resolve(res.links[0].href)
      }
    })
  })
}

function scrape(html) {
  $ = cheerio.load(html)
  return $('div.accepted-answer pre code').text()
}

function download(url) {
  return new Promise((resolve, reject) => {
    request(url, (error, response, body) => {
      if (!error && response.statusCode == 200) {
        resolve(body)
      } else {
        reject({
          reason: 'Unable to download page'
        })
      }
    })
  })
}

arg = process.argv[2]
fetch(arg)