module FollowablesHelper
  def followable_type_title(followable_type)
    t("activerecord.models.#{followable_type.underscore}.other")
  end

  def followable_icon(followable)
    { proposals: "Proposal", budget: "Budget::Investment" }.invert[followable]
  end

  def render_follow(follow)
    return if follow.followable.blank?

    followable = follow.followable
    partial = "#{followable_class_name(followable)}_follow"
    locals = { followable_class_name(followable).to_sym => followable }

    render partial, locals
  end

  def followable_class_name(followable)
    followable.class.to_s.parameterize(separator: "_")
  end

  def find_or_build_follow(user, followable)
    Follow.find_or_initialize_by(user: user, followable: followable)
  end
end
