amazon-reviews/lib/getReview.coffee

A node.js module to crawl product reviews from Amazon.

ReviewMobilePage = require './page/ReviewMobilePage'
ReviewDesktopPage = require './page/ReviewDesktopPage'


#### retrieve a review by productId and reviewId.
module.exports = (options, callback) ->
  return callback new Error 'no options.productId'  if not options?.productId?
  return callback new Error 'no options.reviewId'  if not options?.reviewId?

  options.url = "http://www.amazon.com/gp/aw/review/#{options.productId}/#{options.reviewId}"

  reviewMobilePage = new ReviewMobilePage options, (err, $) ->
    return callback err  if err?

    reviewMobilePage.$ = $

    review = reviewMobilePage.parse()

    options.url = "http://www.amazon.com/review/#{options.reviewId}"

    reviewDesktopPage = new ReviewDesktopPage options, (err, $) ->
      return callback err  if err?

      reviewDesktopPage.$ = $

      for k, v of reviewDesktopPage.parse()
        review[k] = v

      callback null, review