module Fakeit
  module Openapi
    module Example
      BIG_NUM = 2**32

      def number_example(example_options)
        example_options[:static] ? static_number_example : random_number_example
      end

      private

      def static_number_example
        (num_rand_begin * num_multiple)
          .then { |result| multipleOf ? result : result.round(2) }
      end

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

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

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

      def num_multiple
        multipleOf || 1
      end

      def min_num
        (minimum || 0).to_f.ceil(2)
      end

      def max_num
        (maximum || BIG_NUM).to_f.floor(2)
      end
    end
  end
end