add imdb ratings to your itunes movie collection

add_movie_ratings.rb

#!/usr/bin/env /usr/local/bin/ruby

require 'rubygems'
require 'appscript'
require 'imdb_party'
include Appscript


class LookupAPI

  def initialize
    @imdb = ImdbParty::Imdb.new
  end

  def getDataFromImdb(movieName, movieYear)
    puts "!!Looking up data for: #{movieName} - #{movieYear}"
    movieResults = @imdb.find_by_title(movieName)
    movies = []
    puts "!!Search returned #{movieResults.length} hits"

    for movieResult in movieResults do
        # check that the year tag in the file name matches with the release date, 
        # otherwise not the movie we are looking for
        #puts "!!Potential hit: #{movieResult[:title]}"
        if movieResult[:year] != nil then
          if movieResult[:kind] != nil && (movieResult[:kind] == "feature" || movieResult[:kind] =="documentary") then
              if movieResult[:year].start_with?(movieYear.to_s) || movieResult[:year].start_with?((movieYear.to_i + 1).to_s) || movieResult[:year].start_with?((movieYear.to_i - 1).to_s) then
                  movie = @imdb.find_movie_by_id(movieResult[:imdb_id])
                  movies.push(movie)
              end
            end
        end
    end
        
    return movies
    
  end
  
end # end class

itunes = app('iTunes')

lookupAPI = LookupAPI.new

tracks = itunes.selection.get
tracks.each do |track|
   #track.rating.set(80)
   movieName = track.name.get
   movieYear = track.year.get
   
   puts "  Retrieving data from IMDb"
   movies = lookupAPI.getDataFromImdb(movieName, movieYear)
   
   # for movie in movies do
   #   puts "!!hit: title #{movie.title}, id #{movie.imdb_id}"
   # end
   
   if movies.length == 0
     puts "  No matches found for \"#{movieName}\" made in #{movieYear}"
     next
   end
   movieChoice = 0
   if movies.length > 1 then
     puts "  Potential Title Matches"
     movieCounter = 0
     for movie in movies do
       puts "   #{movieCounter}. #{movie.title} (ID: #{movie.imdb_id}, YR: #{movie.release_date})"
       movieCounter = movieCounter + 1
     end
     
     #ask user what movie he wants to use
     puts "  Select correct title: "
     movieChoice = gets.chomp
     if movieChoice == nil then
       movieChoice = 0
     end
     movieChoice = movieChoice.to_i
   end
   movie = movies[movieChoice]
    
   if movies.length == 1 then
     puts "Selecting Default. #{movie.title} (ID: #{movie.imdb_id}, YR: #{movie.release_date})"
   end
   if movie.rating != nil then
     rating = movie.rating  
     #track.rating.set((rating * 10).floor) 
     track.rating.set(:to => ((rating * 10).floor) )
   else
     puts "  nil rating #{movie.rating}"
   end
   #track.comment.set("{imdb_id=\"#{movie.imdb_id}\", genres=#{movie.genres}}")
end


# selected = itunes.selection.get
# 
# updated = 0
# not_found = 0
# already_there = 0
# 
# for a in selected
#   if (a.lyrics.get.eql?("") and !a.artist.get.eql?("") and !a.name.get.eql?(""))
# 
#       theartist = a.artist.get
#       thesong = a.name.get
#       
#       url = "http://lyricwiki.org/"
#       song = theartist.downcase
#       song += ":"
#       song += thesong.downcase
#       #song.gsub!(/^[a-z]|\s+[a-z']/) { |letter| letter.upcase }
#       song.gsub!(/\'\s/,' ')
#       song.gsub!(/\s+/,'_')
#       song.gsub!(/^[a-z]|_+[a-z]|[:\(\)\[\]][a-z]|/) { |letter| letter.upcase }
#       song.gsub!(/&/, 'And' )
#       
#       puts song
#  
#       url += song
# 
#       c = Curl::Easy.perform(url)      
#       pagecontent = c.body_str.gsub!(/&/, 'And' )
#       doc = Document.new c.body_str
#  
#       ln = doc.root_node.find_first_recursive {|node| node.name == "div" and node.attributes["class"] == "lyricbox"}
#       
#       if (ln == nil)
#         puts "CANNOT FIND any lyrics for " + theartist + " - " + thesong
#         not_found = not_found + 1
#       else
#         lyr = ln.to_s
#                  
#         lyr.gsub!(/<\/*\s*br\s*\/*>/, "\n") #STRIP brs
#         lyr.gsub!(/<\/*\s*p\s*\/*>/, "\n") #STRIP p
#         lyr.gsub!(/\<\s*(.*?)(\s*\>)/m, "") #STRIP any tag
#         lyr.gsub!(/\n+\Z/, "\n") #STRIP final returns
#         
#         a.lyrics.set(lyr)
#         puts "UPDATED lyrics for " + theartist + " - " + thesong
#         updated += 1
#       end
#   else 
#     already_there += 1
#   end
# end

hi there, I've never used scripts like this before, can you please tell me how to run this on a mac?

Thanks in advance.