Square Calculator

=begin
This program calculates the amount to charge a client using Square as a payment processor.
The variation in cost depends largely on if the credit card is present.
=end

puts "--------------------------------------"
puts "---Welcome to the Square Calculator---"
puts "--------------------------------------"

# Output commas in large number
def comma_numbers(number, delimiter = ',')
  number.to_s.reverse.gsub(%r{([0-9]{3}(?=([0-9])))}, "\\1#{delimiter}").reverse
end

# Get Amount Owed
puts "\tHow much do you want to get paid?"
amount = gets.chomp # Read in from command line

# Is CC Present
puts "\tIs the credit card physically present? Enter Y or N"
ccPresent = gets.chomp

if ccPresent.downcase == "y" 	# CC is Present
	transactionFee = 0.0275
	total = amount.to_i / (1 - transactionFee)
else						# CC is Absent
	transactionFee = 0.035
	fixedFee = 0.15
	total = (amount.to_i + fixedFee) / (1 - transactionFee)
end

puts "The total amount to charge is: $#{ comma_numbers(total.round(2)) }"