Design Pattern: Iterator and Movie Collections

movie_collection2.rb

class MovieCollection
  attr_reader :netflix_movies, :amazon_movies, 
              :hulu_movies, :youtube_movies, :hbo_movies
  
  attr_accessor :all_movies
  
  def initialize(netflix_movies, amazon_movies, 
          hulu_movies, youtube_movies, hbo_movies)
    
    @netflix_movies = netflix_movies
    @amazon_movies = amazon_movies
    @hulu_movies = hulu_movies
    @youtube_movies = youtube_movies
    @hbo_movies = hbo_movies
    @all_movies = get_all_movies
  end
  
  private
  def get_all_movies
    movies = []
    
    netflix_movies.each do |movie|
      movies << movie
    end
    
    amazon_movies.each do |movie_id, movie|
      movies << movie
    end
    
    hulu_movies.each do |movie|
      movies << movie
    end
    
    youtube_movies.each do |movie|
      movies << movie
    end
    
    hbo_movies.each do |movie_id, movie|
      movies << movie
    end
    
    movies
  end
end