module Approvable
  extend ActiveSupport::Concern

  included do
    include ActiveStorageSupport::SupportForBase64

    has_one_base64_attached :approved_by_user_signature

    # Requires signature when saving in the approval context
    with_options on: :approval do
      validates :approved_by_user_signature, attached: true
    end

    def approve_by(user)
      return unless approved_at.nil?

      self.approved_by_user_name = user.full_name
      self.approved_by_user_email = user.email
      self.approved_at = BigMediaTime.time_zone_now
    end

    def approved?
      self.approved_at.present?
    end
  end
end