pay-via-phone.rb

require 'twilio-ruby'
require 'webpay'

post '/' do
  Twilio::TwiML::Response.new do |r|
    r.Gather :timeout => "10", :finishOnKey => "*", :action => '/month' do |g|
      g.Say "Please enter your credit card number and then press star."
    end
  end.text
end

post '/month' do
  number = params['Digits']
  Twilio::TwiML::Response.new do |r|
    r.Gather :timeout => "10", :finishOnKey => "*", :action => "/year?number=#{number}" do |g|
      g.Say "Please enter your two digit credit card expiration month and then press star."
    end
  end.text
end

post '/year' do
  number = params['number']
  month = params['Digits']
  Twilio::TwiML::Response.new do |r|
    r.Gather :timeout => "10", :finishOnKey => "*", :action => "/cvv?number=#{number}&month=#{month}" do |g|
      g.Say "Please enter your four digit credit card expiration year and then press star."
    end
  end.text
end

post '/cvv' do
  number = params['number']
  month = params['month']
  year = params['Digits']
  Twilio::TwiML::Response.new do |r|
    r.Gather :timeout => "10", :finishOnKey => "*", :action => "/charge-via-webpay?number=#{number}&month=#{month}&year=#{year}" do |g|
      g.Say "Please enter your credit card CVV number and then press star."
    end
  end.text
end

post '/charge-via-webpay' do
  number = params['number']
  month = params['month']
  year = params['year']
  cvv = params['Digits']

  amount = 19800
  WebPay.api_key = "test_secret_eHn4TTgsGguBcW764a2KA8Yd"
  WebPay::Charge.create(
     :amount => amount,
     :currency => "jpy",
     :card =>
      {:number => number,
       :exp_month => month,
       :exp_year => year,
       :cvc => cvv}
  )
  Twilio::TwiML::Response.new do |r|
    r.Say "You successfully paid #{amount} Japanese Yen. Thank you."
  end.text
end