with_media.rb

module WithMedia
  extend ActiveSupport::Concern

  def active_storage_blobs
    explicit_active_storage_blobs.or inherited_active_storage_blobs
  end

  def explicit_active_storage_blobs
    blobs_with_ids [featured_image&.blob_id, rich_text_blob_ids]
  end

  def inherited_active_storage_blobs
    blobs_with_ids [best_featured_image]
  end

  def rich_text_reflection_names
    @rich_text_reflection_names ||= _reflections.select { |name, reflection| reflection.class_name == "ActionText::RichText" }.keys
  end

  def rich_text_blob_ids
    rich_text_reflection_names.map { |rich_text_reflection_name|
      public_send(rich_text_reflection_name).embeds.blobs.pluck(:id)
    }.flatten
  end

  # Can be overwrite to get featured_image from associated objects (ex: parents)
  def best_featured_image(fallback: true)
    featured_image
  end

  protected

  def blobs_with_ids(ids)
    university.active_storage_blobs.where(id: ids.flatten.compact)
  end
end