1001.rb

require 'oga'
require 'open-uri'
require 'pry'

url = './index.html'
html = open(url)

class FilmLibrary
  def initialize(films)
    @films = films
  end

  def sorted_by_rating_desc
    libify @films.sort_by{|f| f.rating }.reverse
  end

  def filter_by_genre(genre)
    FilmLibrary.new(@films.select{ |f| f.genres.include?(genre) })
  end

  def filter_by_rating_more_than(rating)
    libify @films.select{ |f| f.rating >= rating }
  end

  def genres
    @films.map(&:genres).flatten.uniq
  end

  def first(n = 1)
    libify @films.first(n)
  end

  def to_a
    @films
  end

  private

  def libify(films)
    FilmLibrary.new(films)
  end
end

class Film
  attr_reader :title, :year, :genres, :rating

  def initialize(title, year, genres, rating)
    @title = title
    @year = year.to_i
    @genres = genres
    @rating = rating.to_f
  end
end

document = Oga.parse_html(html)

films = document.css('.lister-item').map do |item|
  title = item.css('h3 a').text
  year = item.css('.lister-item-year').text.delete("()")
  genres = item.css('.genre').text.strip.split(/, ?/)
  rating = item.css('div.ipl-rating-star span.ipl-rating-star__rating').first.text.sub(',', '.')

  film = Film.new(title, year, genres, rating)
end


lib = FilmLibrary.new(films)

mini_lib = lib.sorted_by_rating_desc.first(2)

raise 'айай' if mini_lib.filter_by_genre('Comedy').to_a.size != 2
raise 'айай2' if mini_lib.filter_by_genre('Romance').to_a.size != 1
raise 'айай3' if lib.filter_by_rating_more_than(8).sorted_by_rating_desc.to_a.last.rating >= 8.0

binding.pry

puts 'yay'