require 'mechanize'
require 'json'

agent = Mechanize.new
osu_page = agent.get 'http://www.osu.edu'
dining = osu_page.link_with(text: /Dining Halls/).click
hours = dining.link_with(text: /Hours/).click
nutrition = dining.link_with(text: /nutrition/i).click
curl = agent.post 'https://dining.osu.edu/NetNutrition/1/Unit/SelectUnitFromUnitsList', {unitOid: 12}
menu = JSON.parse curl.content
menu_html = Nokogiri::HTML(menu['panels'][0]['html'])
items = menu_html.css('.cbo_nn_itemHover')
item = items[4]['onkeyup'][/event,(.*)\)/, 1]  # get the id of 4th item in the menu
label = agent.post 'https://dining.osu.edu/NetNutrition/1/NutritionDetail/ShowItemNutritionLabel', detailOid: item
calories = label.css(".font-22")

puts "#{items[4].text} has #{calories.text} calories"