nightmare.coffee

request = require 'request'
_ = require 'lodash'
Nightmare = require 'nightmare'

nightmare = new Nightmare()
findImages = (link) ->
	nightmare
		.goto link
		.wait()
		#.evaluate getImages, logImages
		.evaluate ->
			document.body
		, (r) -> console.log r
		.url (u) -> console.log u, link
		#.screenshot 'ss.png'
		.run (err, nightmare) -> console.log 'Done.'

getImages = ->
	imgs = document.querySelectorAll 'img'
	resp = []
	for img in imgs
		rect = img.getBoundingClientRect()
		resp.push
			width: rect.width
			height: rect.height
			area: rect.width * rect.height
			top: rect.top
			bottom: rect.bottom
			src: img.src
	resp

logImages = (resp) ->
	console.log resp
	max = _.max resp, (i) -> i.area
	console.log JSON.stringify(resp)
	console.log 'largest image:', max

FeedParser = require('feedparser')
parser = ->
	feedparser = new FeedParser()
	feedparser.on 'error', (error) -> console.log 'feed error', error
	feedparser.on 'readable', ->
		@emit 'data', 'testing'
		#console.log item.link while item = @read()
		findImages item.link while item = @read()

fetch = (uri) ->
	console.log "requesting #{uri}"
	req = request uri
	req.pipe parser()

fetch 'http://news.ycombinator.com/rss'

#findImages 'http://kayak.com'