Cash Register II Challenge

cash_2.rb

# CASH 2

subtotal_arr = []

puts "What is the sale price?"
amt_due = gets.chomp.downcase
puts

while amt_due != "done"

  subtotal_arr << amt_due.to_f
  subtotal_sum = subtotal_arr.inject(:+)

  puts "Subtotal: $#{sprintf('%.2f', subtotal_sum)}"
  puts

  amt_due = gets.chomp.downcase

end

puts
puts "Here are your item prices:"
puts

subtotal_arr.each do |arr|
  puts "$#{sprintf('%.2f', arr)}"
end

puts
puts "The total amount due is $#{sprintf('%.2f', subtotal_sum)}"
puts
puts "What is the amount tendered?"
amt_tnd = gets.to_f

if amt_tnd == subtotal_sum
  puts
  puts "========== Thank You! ============"
  puts Time.now.strftime("%m/%d/%Y %l:%M%p")
  puts "============ PAID ================"
else
  change = amt_tnd - subtotal_sum
  tender = sprintf('%.2f', change.abs)
  if change > 0
    puts
    puts "========== Thank You! ============"
    puts "The total change due is $#{tender}"
    puts
    puts Time.now.strftime("%m/%d/%Y %l:%M%p")
    puts "============= PAID ==============="
  else
    puts
    puts "==================================================="
    puts "  WARNING: Customer still owes $#{tender}! Exiting..."
    puts "==================================================="
  end
end