Merge pull request #694 from ZeusWPI/feat/epc_in_mail

Add EPC QR code to registration emails and ticket overview

Gemfile

@@ -4,8 +4,6 @@ source 'https://rubygems.org'
 
 gem 'dotenv-rails'
 
-gem 'bundler', '= 2.4.8'
-
 gem 'bcrypt_pbkdf', '>= 1.0', '< 2.0'
 
 gem 'ed25519', '>= 1.2', '< 2.0'
@@ -67,6 +65,7 @@ gem 'iban-tools'
 # Barcodes
 gem 'barby'
 gem 'chunky_png'
+gem 'rqrcode'
 
 # Pagination
 gem 'will_paginate', '~> 3.0'

Gemfile.lock

@@ -307,6 +307,10 @@ GEM
       actionpack (>= 5.2)
       railties (>= 5.2)
     rexml (3.2.5)
+    rqrcode (2.1.2)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 1.0)
+    rqrcode_core (1.2.0)
     rubocop (1.50.2)
       json (~> 2.3)
       parallel (~> 1.10)
@@ -435,7 +439,6 @@ DEPENDENCIES
   barby
   bcrypt_pbkdf (>= 1.0, < 2.0)
   bootsnap
-  bundler (= 2.4.8)
   cancancan
   capistrano (~> 3.17)
   capistrano-docker!
@@ -466,6 +469,7 @@ DEPENDENCIES
   rails-erd
   rails_style!
   record_tag_helper
+  rqrcode
   rubocop-minitest
   sass-rails
   sdoc

app/actions/generate_epc_qr.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+require 'barby/barcode/qr_code'
+require 'barby/outputter/png_outputter'
+require 'chunky_png'
+
+class GenerateEpcQr
+  def initialize(epc_data)
+    @epc_data = epc_data
+  end
+
+  def call
+    qrcode = Barby::QrCode.new(@epc_data)
+
+    png_outputter = Barby::PngOutputter.new(qrcode)
+    png_outputter.xdim = 4
+    png_outputter.ydim = 4
+
+    qrcode_canvas = png_outputter.to_image
+    qrcode_canvas.to_blob
+  end
+end

app/controllers/registrations_controller.rb

@@ -26,6 +26,7 @@ def show
 
     @event = @registration.event
     @barcode = GenerateHtmlBarcodes.new(@registration.barcode_data).call
+    @qr_code = GenerateEpcQr.new(@registration.epc_data).call
   end
 
   def new

app/mailers/registration_mailer.rb

@@ -5,6 +5,9 @@ class RegistrationMailer < ApplicationMailer
 
   def confirm_registration(registration)
     @registration = registration
+
+    attachments.inline['epc.png'] = GenerateEpcQr.new(@registration.epc_data).call
+
     mail to: "#{registration.name} <#{registration.email}>", subject: "Registration for #{registration.event.name}"
   end
 

app/models/registration.rb

@@ -72,6 +72,23 @@ def generate_barcode
     self.save!
   end
 
+  def epc_data
+    <<~HEREDOC
+      BCD
+      002
+      1
+      SCT
+
+      #{event.club.name}
+      #{event.bank_number}
+      EUR#{format '%.2f', to_pay}
+
+
+      #{payment_code}
+
+    HEREDOC
+  end
+
   def self.find_payment_code_from_csv(csvline)
     match = /GAN\d+/.match(csvline)
     if match

app/views/registration_mailer/confirm_registration.html.erb

@@ -11,6 +11,9 @@
 
 	<p>Om uw ticket te ontvangen via e-mail, schrijft u <%= nice_amount @registration.to_pay %> euro over op het rekeningnummer <%= @registration.event.bank_number || "our bank account" %>. Plaats de code "<%= @registration.payment_code %>" in de mededeling van de overschrijving (zonder aanhalingstekens). Als u de code vergeet mee te geven of niet correct vermeldt in de beschrijving, dan kunnen wij uw betaling niet verwerken en zal u uw ticket niet ontvangen. U mag maximaal één code ingeven per overschrijving.</p>
 
+        <p>Je kan met de meeste bank-apps ook deze QR-code scannen:</p>
+        <%= image_tag attachments['epc.png'].url %>
+
 	<p><strong>Gelieve ten laatste 3 dagen voor het evenement te betalen.</strong> Indien dit niet meer lukt, gelieve ons te contacteren via <%= mail_to @registration.event.contact_email, @registration.event.contact_email %> om een andere betalingswijze af te spreken. Eens we uw betaling verwerkt hebben, zal u uw ticket via e-mail ontvangen.</p>
 
         <p>U kan deze informatie ook altijd herbekijken op <a href="<%= event_registration_url(@registration.event, @registration.token) %>">deze pagina</a>.
@@ -31,6 +34,9 @@
 
 	<p>To receive your ticket by mail, please transfer <%= nice_amount @registration.to_pay %> euro to <%= @registration.event.bank_number || "our bank account" %>. Place "<%= @registration.payment_code %>" in the description of your transfer (without the quotation marks). If you forget this code or you do not copy it correctly, we cannot process your payment and you will not receive your ticket. You are only allowed to enter one code per transfer.</p>
 
+        <p>You can also use most banking apps to scan this QR code:</p>
+        <%= image_tag attachments['epc.png'].url %>
+
 	<p><strong>Please pay at least 3 days before the event.</strong> If this is no longer possible, please contact us via <%= mail_to @registration.event.contact_email, @registration.event.contact_email %> to agree upon a different payment method. You will receive your ticket by mail once we processed your payment.</p>
 
         <p>You can always view this information on <a href="<%= event_registration_url(@registration.event, @registration.token) %>">this page</a>.

app/views/registrations/show.html.erb

@@ -49,6 +49,10 @@
         </tr>
       </table>
 
+      <div>
+          <img src="data:image/png;base64,<%= Base64.encode64 @qr_code %>">
+      </div>
+
       <p>
         Om uw ticket te ontvangen via e-mail, schrijft u <strong><%= nice_amount @registration.to_pay %> euro</strong>
         over op het rekeningnummer <strong><%= @registration.event.bank_number || "our bank account" %></strong>. Plaats de code

test/mailers/registration_mailer_test.rb

@@ -16,9 +16,7 @@ class RegistrationMailerTest < ActionMailer::TestCase
 
     email = ActionMailer::Base.deliveries.last
     assert_match(/Registration for/, email.subject)
-    # Both html and plaintext mail should contain the signature
-    assert_match(/Een signatuur/, email.parts.first.body.to_s)
-    assert_match(/Een signatuur/, email.parts.second.body.to_s)
+    assert_match(/Een signatuur/, email.parts.first.parts.first.body.to_s)
   end
 
   test "signature of ticket emails can be branded" do