require 'thor'
require 'my_age'
require 'pry'
module MyAge
	class CLI < Thor
    attr_accessor :dob
    include MyAge::Calculator

    desc "is AGE", "-d date_of_birth -a as_of_date, Dates are in yyyy-mm-dd format"
		method_option :dob, aliases: "d", desc: "date of birth in yyyy-mm-dd", required: true
		method_option :as_of, aliases: "a", desc: "as of date in yyyy-mm-dd", required: false 
		def is
			self.dob = get_date(options[:dob]) 
			date = options[:as_of].present? ? get_date(options[:as_of]) : Date.today
			puts self.age(date)
		end


		private
		def get_date(date)
			begin
      if date =~ /^\d{4}-\d{2}-\d{2}$/
				 DateTime.strptime(date, "%Y-%m-%d")
			else
				dates = date.gsub(")", "").split("(")
				if dates.length == 2
				  Date.today.send(dates[0].to_sym, dates[1].to_i)
				else
				  Date.today.send(dates[0].to_sym)
				end
			end
		rescue NoMethodError
			Date.send(date)
		end
		end

	end
end