class RuboCop::Cop::PreferredDelimiters

def delimiters
  preferred_delimiters[type].chars
end

def ensure_valid_preferred_delimiters
  invalid = preferred_delimiters_config.keys - (PERCENT_LITERAL_TYPES + %w[default])
  return if invalid.empty?
  raise ArgumentError, "Invalid preferred delimiter config key: #{invalid.join(', ')}"
end

def initialize(type, config, preferred_delimiters)
  @type = type
  @config = config
  @preferred_delimiters = preferred_delimiters
end

def preferred_delimiters
  @preferred_delimiters ||=
    begin
      ensure_valid_preferred_delimiters
      if preferred_delimiters_config.key?('default')
        PERCENT_LITERAL_TYPES.to_h do |type|
          [type, preferred_delimiters_config[type] || preferred_delimiters_config['default']]
        end
      else
        preferred_delimiters_config
      end
    end
end

def preferred_delimiters_config
  config.for_cop('Style/PercentLiteralDelimiters')['PreferredDelimiters']
end