module BubblesHelper
  BUBBLE_ROTATION = %w[ 90 80 75 60 45 35 25 5 -45 -40 -75 ]

  def bubble_rotation(bubble)
    value = BUBBLE_ROTATION[Zlib.crc32(bubble.to_param) % BUBBLE_ROTATION.size]

    "--bubble-rotate: #{value}deg;"
  end

  def bubble_size(bubble)
    activity = bubble.boost_count + bubble.comments.size
    rank =
      case activity
      when 0..5   then "one"
      when 6..10  then "two"
      when 11..25 then "three"
      when 26..50 then "four"
      else             "five"
      end

    "--bubble-size: var(--bubble-size-#{rank});"
  end
end