minishows.rb

# Minimalistic Mininova TV show browser with live search, written in Shoes.
#
# To run it, drop `minishoes.rb' onto `Shoes.app'. You should see something like
# the screen capture at:
#   http://img4.imageshack.us/img4/106/minishows.png
#

require 'pathname'
require 'hpricot'
require 'open-uri'

class Show < Struct.new(:title, :episode_count, :path)
  MININOVA = "http://www.mininova.org"
  
  def initialize(link)
    super \
      link.inner_text,
      link.parent.parent.search('td')[1].inner_html.to_i,
      link.attributes['href']
  end
  
  def url
    MININOVA + path
  end
  
  module Fetching
    URL = MININOVA + '/cat/8'
    CACHE = Pathname.new '/tmp/mininova-tv-shows'
    
    def doc
      CACHE.delete if CACHE.exist? && Time.now - CACHE.mtime > 5 * 60
      if CACHE.exist?
        Shoes.debug "loading %.1fKB" % (CACHE.size / 1024.0)
        CACHE.open('r') { |f| Marshal.load f }
      else
        data = Hpricot(open(URL))
        CACHE.open('w') { |f| Marshal.dump data, f }
        Shoes.debug "cached %.1fKB" % (CACHE.size / 1024.0)
        data
      end
    end

    def shows
      @shows ||=
        doc.
          search('tr td a[@href^=/sub]').
          map { |link| Show.new link }.
          reject { |show| show.title == "Other" }
    end
  end
  
  module Display
    def lay_out
      flow do
        background '#fff'..'#ccc'
        flow :width => 0.2, :margin => 2 do
          para "Search:"
        end
        flow :width => 0.6 do
          @search = edit_line
          @search.change do |field|
            re = lambda { |source| Regexp.new(source, Regexp::IGNORECASE) }
            matcher = re[field.text] rescue re[Regexp.escape(field.text)]
            display_sorted shows.select { |s| matcher === s.title }
          end
        end
        flow :width => 0.2, :margin => 2, :margin_right => gutter do
          @count = para "", :align => 'right'
        end
      end
      flow :height => 2 do
        background '#aaa'
      end
      @list = flow
    end
    
    def display(collection)
      @list.clear do
        collection.each_with_index do |show, index|
          flow do
            background '#dadada' if index % 2 == 1
            stack :width => 0.9 do
              para link(show.title, :click => show.url)
            end
            stack :width => 0.1, :margin_right => gutter do
              para show.episode_count, :align => 'right'
            end
          end
        end
      end
      @count.text = collection.size
    end
    
    def display_sorted(collection)
      display collection.sort_by { |show| -show.episode_count }
    end
  end
end

Shoes.app :width => 350 do
  extend Show::Fetching
  extend Show::Display
  lay_out
  display_sorted shows
end