module Denormalized

# File lib/denormalized.rb, line 11
def denormalized(*attributes)
  options = attributes.extract_options!.dup

  if attributes.empty?
    raise ArgumentError, 'You need to supply at least one column'
  end
  if options.empty? || options[:tables]&.empty?
    raise ArgumentError, 'You need to supply at least one table'
  end

  class_attribute :denormalized_configuration

  self.denormalized_configuration = {
    columns: attributes,
    tables: options[:tables],
    columns_hash: Hash[attributes.map { |column| [column, true] }]
  }

  include Denormalized::Core unless denormalized?
end

# File lib/denormalized.rb, line 7
def denormalized?
  included_modules.include?(Denormalized::Core)
end