Cash Register Challenge II

Cashier2.rb

require 'pry'
class Float
	def money
	  sprintf("%.2f", self)
	end
end
 
prices = []
 
# def subtotal(prices)
# 	prices.inject(:+)
# end
 
 
 
while true
	puts "What is the sale price?"
	price = gets.chomp
	if price == "done"
		break
	else
		prices << price.to_f
		subtotal = prices.inject{|subtotal, item| subtotal + item}
		puts "Subtotal: #{subtotal.to_f}"
 
	end 
end
 
puts "Here are your item prices:"
puts
for item in prices
    puts "#{item.money}"
 
puts "The total amount due is #{subtotal}"
 
puts "What is the amount tendered?"
amount_provided = gets.chomp.to_f
 
change = amount_provided-subtotal
 
 
if change > 0
	puts "===Thank You!==="
	puts "The total change due is $#{sprintf("%.2f", change)}"
	puts
	puts
	puts Time.now.strftime("%D, %l:%M%p")
	puts '================='
elsif change < 0
	puts "WARNING: Customer still owe#{sprintf('%.2f',change.abs)}" 
	exit
elsif change == 0 
	puts "You don't need to give change! (#{Time.now})"
end
 
puts "==Thank You!=="
end