module Fakeit
  module Openapi
    module Example
      MIN_NUM = -2**31
      MAX_NUM = (2**31) - 1

      def number_example(example_options)
        if example_options[:use_static][type: 'number', property: example_options[:property]]
          static_number_example
        else
          random_number_example
        end
      end

      private

      def static_number_example = (num_rand_end * num_multiple).then { multipleOf ? _1 : _1.round(2) }

      def random_number_example
        (Faker::Number.between(from: num_rand_begin, to: num_rand_end) * num_multiple)
          .then { multipleOf ? _1 : _1.round(2) }
      end

      def num_rand_begin = multipleOf ? (min_num / multipleOf).ceil : min_num

      def num_rand_end = multipleOf ? (max_num / multipleOf).floor : max_num

      def num_multiple = multipleOf || 1

      def min_num = (minimum || MIN_NUM).to_f.ceil(2)

      def max_num = (maximum || MAX_NUM).to_f.floor(2)
    end
  end
end