Contents

require 'interactive'

module Interactive
  class Response
    def initialize(*args)
      @args = Array(args).flatten
      check_validity

      @_response = STDIN.gets.chomp

      define_methods
      define_invalid
      define_whole_number
    end

    def to_i
      @_response.to_i
    end

    private

    def check_validity
      raise ArgumentError, "may not use :invalid or 'invalid' as an argument. Private method." if @args.map(&:to_s).include?('invalid')
      raise ArgumentError, "may not use :whole_number or 'whole_number' as an argument. Private method." if @args.map(&:to_s).include?('whole_number')
      raise ArgumentError, "may not have keyword options that have the same first letter." if first_chars_not_unique
      raise ArgumentError, "wrong number of arguments (need at least two arguments)." if @args.length < 2
    end

    def define_methods
      @args.each do |arg|
        define_singleton_method arg.query_method_name do
          @_response.strip.match(/^#{arg.shortcut_value}$/i) ? true : false
        end
      end
    end

    def define_invalid
      define_singleton_method "invalid?" do
        methods(false).reject {|m| m == :invalid? }.none? {|m| send(m) }
      end
    end

    def define_whole_number
      define_singleton_method "whole_number?" do
        methods(false).select {|m| m.to_s.match(/whole_number_\d+/)}.any? {|m| send(m) }
      end
    end

    def first_chars_not_unique
      @args.map{|arg| arg.shortcut_value }.uniq.length != @args.length
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
interactive-0.2.0	lib/interactive/response.rb