class Lutaml::Model::Type::Integer

def self.cast(value)
  return nil if value.nil?
  return 1 if value === true
  return 0 if value === false
  case value
  when ::String
    if value.match?(/^0[0-7]+$/) # Octal
      value.to_i(8)
    elsif value.match?(/^-?\d+(\.\d+)?(e-?\d+)?$/i) # Float/exponential
      Float(value).to_i
    else
      begin
        Integer(value, 10)
      rescue StandardError
        nil
      end
    end
  else
    begin
      Integer(value)
    rescue StandardError
      nil
    end
  end
end

def self.serialize(value)
  return nil if value.nil?
  cast(value)
end