lista de cartas disponíveis e script para pegar os preços no Universo Parelelo

magic-cards.txt

1,Grixis Panorama,Land
1,Naya Panorama,Land
1,Bant Panorama,Land
1,Obelisk of Esper,3
1,Obelisk of Bant,3
1,Lush Growth,G
1,Elvish Visionary,1G
1,Elvish Visionary,1G
1,Cylian Elf,1G
1,Savage Hunger,2G
1,Savage Hunger,2G
1,Rhox Charger,3G
1,Drumhunter,3G
1,Souls Might,4G
1,Gustrider Exuberant,2W
1,Guardians of Akrasa,2W
1,Welkin Guide,4W
1,Rockcaster Platoon,5WW
1,Yoked Plowbeast,5WW
1,Sphinxs Herald,U
1,Cancel,1UU
1,Spell Snip,2U
1,Etherium Astrolabe,2U
1,Outrider of Jhess,3U
1,Fatestitcher,3U
1,Tidehollow Sculler,WB
1,Tidehollow Strix,UB
1,Branching Bolt,1RG
1,Sedraxis Specter,UBR
1,Kederekt Creeper,UBR
1,Kederekt Creeper,UBR
1,Rakeclaw Gargantuan,2RGW
1,Rakeclaw Gargantuan,2RGW
1,Sangrite Surge,4RG
1,Bull Cerodon,4RW
6,Plain,Basic Land
6,Florest,Basic Land

uponline.rb

%w(rubygems csv nokogiri open-uri).each do |req|
  require req
end

def get_price_for_card(card_name)
  uponline_base_url = "http://uponline.com.br/pesquisa.php?setor=Cartas&key="
  doc = Nokogiri::HTML(open("#{uponline_base_url}#{card_name.split.join('+')}"))
  begin
    result = doc.css("table#lista_completa tr.bg_tr_off td[3]")
    return "verify, more than 1 price" if result.size > 1
    result.first.content
  rescue
    "'#{card_name}' is not a valid card name."
  end
end

def convert_to_number(value)
  v = value.gsub("R$ 0,", "")
  v.gsub!("R$ ", "")
  v.gsub!(",", "")
  v.to_i
end

cards = CSV.open('magic-cards.txt', 'r')

total = 0
cards.each do |card|
  value = get_price_for_card(card[1])
  total += convert_to_number(value)
  card << value.to_s
  p card
end

p "Total = #{total/100.0}"