app/models/concerns/expirable.rb


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# frozen_string_literal: true

module Expirable
  extend ActiveSupport::Concern

  DAYS_TO_EXPIRE = 7

  included do
    scope :not, ->(scope) { where(scope.arel.constraints.reduce(:and).not) }

    scope :expired, -> { where.not(expires_at: nil).where(arel_table[:expires_at].lteq(Time.current)) }
    scope :not_expired, -> { self.not(expired) }
  end

  def expired?
    expires? && expires_at <= Time.current
  end

  # Used in subclasses that override expired?
  alias_method :expired_original?, :expired?

  def expires?
    expires_at.present?
  end

  def expires_soon?
    expires? && expires_at < DAYS_TO_EXPIRE.days.from_now
  end
end