Module: PowerTypes::Service

Defined in:
lib/power_types/patterns/service.rb

Class Method Summary collapse

Class Method Details

.new(*_attributes) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/power_types/patterns/service.rb', line 4

def self.new(*_attributes)
  attr_names = []
  attr_defaults = {}

  _attributes.each do |att|
    if att.is_a? Hash
      attr_defaults.merge! att
      attr_names += att.keys
    else
      attr_names << att
    end
  end

  Class.new do
    def logger
      Rails.logger
    end

    define_method(:initialize) do |kwargs = {}|
      unless (kwargs.keys - attr_names).empty?
        raise ArgumentError, "Unexpected arguments: #{(kwargs.keys - attr_names).join(', ')}"
      end

      kwargs = attr_defaults.merge kwargs
      attr_names.map do |a|
        raise ArgumentError, "Missing parameter: #{a}" unless kwargs.key? a
        instance_variable_set "@#{a}", kwargs[a]
      end
    end
  end
end