Loads GE prices into Soulver's variables

soulver.rb

require 'rubygems'
require 'open-uri'
require 'plist'
require 'hpricot'

variables_path = "#{ENV['HOME']}/Library/Application Support/Soulver/Variables.plist"

items = {
  1391 => "Battlestaff",
  573  => "Air orb",
  575  => "Earth orb",
  569  => "Fire orb",
  571  => "Water orb",
  561  => "Nature rune"
}

# Don't need to touch anything below

module GE
  class Item
    attr_reader :obj
    
    def initialize(obj)
      @obj = obj
    end
    
    def name
      doc.at(".main_ge_page .subsectionHeader").inner_text.strip
    end
    
    def examine
      additional[/^.*\.$/]
    end
    
    def current_price
      raw = additional[/^Current guide price: (.*)$/, 1].strip.delete(',')
      case raw[-1]
      when 'b'
        (raw.to_f * 1_000_000_000).to_i
      when 'm'
        (raw.to_f * 1_000_000).to_i
      when 'k'
        (raw.to_f * 1_000).to_i
      else
        raw.to_i
      end
    end
    
    def day_change_30
      additional[/^30 Days: (.*)$/, 1]      
    end
    
    def day_change_90
      additional[/^90 Days: (.*)$/, 1]      
    end
    
    def day_change_180
      additional[/^180 Days: (.*)$/, 1]      
    end
    
    private
    
    def doc
      @doc ||= Hpricot(open("http://itemdb-rs.runescape.com/viewitem.ws?obj=#{obj}"))
    end
    
    def additional
      @additional ||= doc.at("#item_additional").inner_text.strip
    end
  end
end

variables = Plist::parse_xml(variables_path)

items.each do |item_id, item_name|
  puts "Updating #{item_name}"
  ge_data = GE::Item.new(item_id)
  name = "GE" << ge_data.name.downcase.gsub(' ', '_').gsub(/\/(.?)/) { "::#{$1.upcase}" }.gsub(/(?:^|_)(.)/) { $1.upcase }
  
  variables['SKVariables'].delete_if { |v| v['name'] == name }
  
  variables['SKVariables'] << {
    "name" => name,
    "enabled" => true,
    "value" => ge_data.current_price.to_s,
    "type" => 0
  }
end

File.rename(variables_path, "#{ENV['HOME']}/Library/Application Support/Soulver/Variables.#{Time.now.to_i}.plist")

File.open(variables_path, "w") do |f|
  f.puts variables.to_plist
end