Pulsed Media Auction watcher for BitBar

pm-auctions.20s.rb

#!/usr/bin/env ruby

require 'open-uri'
require 'date'
require 'json'

AUCTION_URL="http://pulsedmedia.com/seedbox-auctions.php"
PRODUCT_INFO_URL="http://pulsedmedia.com/clients/widgets/productsinfo.php"
BUY_URL="http://pulsedmedia.com/clients/cart.php?a=add&pid=210&billingcycle=monthly"

PRICE_FILE = "/tmp/pm-auction-prices"
ALERT_LEVEL_GOOD = 5
ALERT_LEVEL_EXCELENT = 4
    
@products = {
    # 210 => "M1000 A1",
    211 => "Dragon A1",
    # 212 => "Storage A1",
    # 213 => "Value250 A1",
}
@content = Hash.new
@best_prices = Hash.new

def get_price(product)
    @content[product] ||= URI("#{PRODUCT_INFO_URL}?pid=#{product}&get=price&billingcycle=monthly").read
    @content[product].gsub(/.*'([\d.]+).'.*/, '\1').to_f
end

def get_products
    out = []
    @products.keys.each do |product|
        price = get_price(product)
        pid = product.to_s
        if price < ALERT_LEVEL_EXCELENT
            color = "white"
        elsif price < ALERT_LEVEL_GOOD
            color = "#696969"
        else
            color = "#292929"
        end
        if @best_prices[pid].nil? || (price < @best_prices[pid]["price"])
            @best_prices[pid] = {
                "price" => price,
                "date" => DateTime.now.strftime("%d/%m/%Y %H:%M"),
            }
        end
        out << "%-12s %6.2f€ | href=#{AUCTION_URL} color=#{color} font=Courier" % ["#{@products[product]}:", price]
        out << "Best: %6.2f€ on %s | color=#{color} font=Courier alternate=true" % [@best_prices[pid]["price"], @best_prices[pid]["date"]]
    end
    out
end

def get_best_price
    @products.keys.map { |product| get_price(product) }.min
end

if File.exist?(PRICE_FILE)
    begin
      File.open(PRICE_FILE, "r:UTF-8") do |f| 
        @best_prices = JSON.parse(f.read)
      end
    rescue
      @best_prices = Hash.new
    end
  end  

begin
    price = get_best_price
    if price < ALERT_LEVEL_EXCELENT
        puts "#{price}€ | color=red dropdown=false"
        puts "#{price}€ | color=white dropdown=false"
    elsif price < ALERT_LEVEL_GOOD
        puts "#{price}€"
    else
        puts "€"
    end
    puts "---"
    puts get_products.join("\n")
rescue => e
    puts ":interrobang:€ | color=red"
    puts "---"
    puts "Error: #{e} | color=red"
    exit
end

File.open(PRICE_FILE, "w:UTF-8") do |f| 
    f.write @best_prices.to_json
end