# frozen_string_literal: true

class Search < ApplicationRecord
  belongs_to :user, optional: true

  serialize :query_params

  # A Search instance is considered a saved search if it has a user_id.
  def saved?
    user_id?
  end

  # delete old, unsaved searches
  def self.delete_old_searches(days_old)
    raise ArgumentError, 'days_old is expected to be a number' unless days_old.is_a?(Numeric)
    raise ArgumentError, 'days_old is expected to be greater than 0' if days_old <= 0

    where(['created_at < ? AND user_id IS NULL', Time.zone.today - days_old]).destroy_all
  end
end