class SubscriptionsCount
  def initialize(order_cycles)
    @order_cycles = order_cycles
  end

  def for(order_cycle_id)
    active[order_cycle_id] || 0
  end

  private

  attr_accessor :order_cycles

  def active
    return @active unless @active.nil?
    return @active = [] if order_cycles.blank?
    @active ||= ProxyOrder.not_canceled.group(:order_cycle_id).where(order_cycle_id: order_cycles).count
  end
end