Merge pull request #2266 from internetee/eis_billing-request-to-generate-invoice

added api service for generate invoice in billing system

.gitignore

@@ -11,6 +11,6 @@
 /config/deploy.rb
 /config/master.key
 /.idea
-
+/config/master.key
 # Do not commit one. Instead, download the latest from https://github.com/internetee/style-guide.
 .rubocop.yml

Gemfile

@@ -104,3 +104,6 @@ gem 'pghero'
 gem 'pg_query', '>= 0.9.0'
 gem 'newrelic_rpm'
 gem 'newrelic-infinite_tracing'
+
+# token
+gem 'jwt'

Gemfile.lock

@@ -275,6 +275,7 @@ GEM
       activesupport (>= 4.2)
       aes_key_wrap
       bindata
+    jwt (2.3.0)
     kaminari (1.2.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.1)
@@ -560,6 +561,7 @@ DEPENDENCIES
   iso8601 (= 0.13.0)
   jquery-rails
   jquery-ui-rails (= 6.0.1)
+  jwt
   kaminari
   lhv!
   mime-types-data

app/controllers/admin/invoices_controller.rb

@@ -13,6 +13,7 @@ module Admin
 
       if @invoice&.persisted?
         flash[:notice] = t(:record_created)
+        # send_invoice_data_to_billing_system
         redirect_to [:admin, @invoice]
       else
         flash.now[:alert] = t(:failed_to_create_record)
@@ -48,6 +49,8 @@ module Admin
 
     def cancel
       @invoice.cancel
+      EisBilling::SendInvoiceStatus.send_info(invoice_number: @invoice.number, status: 'cancelled')
+
       redirect_to [:admin, @invoice], notice: t('.cancelled')
     end
 

app/controllers/eis_billing/base_controller.rb

@@ -0,0 +1,59 @@
+module EisBilling
+  class BaseController < ApplicationController
+    protect_from_forgery with: :null_session
+    skip_authorization_check # Temporary solution
+    # skip_before_action :verify_authenticity_token # Temporary solution
+    before_action :persistent
+    before_action :authorized
+
+    INITIATOR = 'billing'.freeze
+
+    def encode_token(payload)
+      JWT.encode(payload, ENV['secret_word'])
+    end
+
+    def auth_header
+      # { Authorization: 'Bearer <token>' }
+      request.headers['Authorization']
+    end
+
+    def decoded_token
+      return unless auth_header
+
+      token = auth_header.split(' ')[1]
+      begin
+        JWT.decode(token, billing_secret_key, true, algorithm: 'HS256')
+      rescue JWT::DecodeError
+        nil
+      end
+    end
+
+    def accessable_service
+      return decoded_token[0]['initiator'] == INITIATOR if decoded_token
+
+      false
+    end
+
+    def logged_in?
+      !!accessable_service
+    end
+
+    def authorized
+      render json: { message: 'Access denied' }, status: :unauthorized unless logged_in?
+    end
+
+    def billing_secret_key
+      ENV['billing_secret']
+    end
+
+    def logger
+      Rails.logger
+    end
+
+    def persistent
+      return true if Feature.billing_system_integrated?
+
+      render json: { message: "We don't work yet!" }, status: :unauthorized
+    end
+  end
+end

app/controllers/eis_billing/directo_response_controller.rb

@@ -0,0 +1,36 @@
+class EisBilling::DirectoResponseController < EisBilling::BaseController
+  def update
+    response = params[:response]
+    xml_data = params[:xml_data]
+    @month = params.fetch(:month, false)
+
+    process_directo_response(xml_data, response)
+    render status: :ok, json: { messege: 'Should return new directo number' }
+  end
+
+  private
+
+  def process_directo_response(xml, req)
+    Rails.logger.info "[Directo] - Responded with body: #{xml}"
+    Nokogiri::XML(req).css('Result').each do |res|
+      if @month
+        mark_invoice_as_sent(res: res, req: req)
+      else
+        inv = Invoice.find_by(number: res.attributes['docid'].value.to_i)
+
+        mark_invoice_as_sent(invoice: inv, res: res, req: req)
+      end
+    end
+  end
+
+  def mark_invoice_as_sent(invoice: nil, res:, req:)
+    directo_record = Directo.new(response: res.as_json.to_h,
+                                 request: req, invoice_number: res.attributes['docid'].value.to_i)
+    if invoice
+      directo_record.item = invoice
+      invoice.update(in_directo: true)
+    end
+
+    directo_record.save!
+  end
+end

app/controllers/eis_billing/e_invoice_response_controller.rb

@@ -0,0 +1,15 @@
+class EisBilling::EInvoiceResponseController < EisBilling::BaseController
+  def update
+    invoice_number = params[:invoice_number]
+
+    mark_e_invoice_sent_at(invoice_number)
+    render status: :ok, json: { message: 'Response received' }
+  end
+
+  private
+
+  def mark_e_invoice_sent_at(invoice_number)
+    invoice = Invoice.find_by(number: invoice_number)
+    invoice.update(e_invoice_sent_at: Time.zone.now)
+  end
+end

app/controllers/eis_billing/lhv_connect_transactions_controller.rb

@@ -0,0 +1,48 @@
+module EisBilling
+  class LhvConnectTransactionsController < EisBilling::BaseController
+    def create
+      params['_json'].each do |incoming_transaction|
+        process_transactions(incoming_transaction)
+      end
+
+      render status: :ok, json: { message: 'RECEIVED', params: params }
+    end
+
+    private
+
+    def process_transactions(incoming_transaction)
+      logger.info 'Got incoming transactions'
+      logger.info incoming_transaction
+
+      bank_statement = BankStatement.new(bank_code: Setting.registry_bank_code,
+                                         iban: Setting.registry_iban)
+      bank_statement_transaction(bank_statement: bank_statement, incoming_transaction: incoming_transaction)
+    end
+
+    def bank_statement_transaction(bank_statement:, incoming_transaction:)
+      ActiveRecord::Base.transaction do
+        bank_statement.save!
+        transaction = create_transaction(incoming_transaction: incoming_transaction, bank_statement: bank_statement)
+
+        next if transaction.registrar.blank?
+
+        create_invoice_if_missing(transaction) unless transaction.non_canceled?
+      end
+    end
+
+    def create_invoice_if_missing(transaction)
+      Invoice.create_from_transaction!(transaction) unless transaction.autobindable?
+      transaction.autobind_invoice
+    end
+
+    def create_transaction(incoming_transaction:, bank_statement:)
+      transaction_attributes = { sum: incoming_transaction['amount'],
+                                 currency: incoming_transaction['currency'],
+                                 paid_at: incoming_transaction['date'],
+                                 reference_no: incoming_transaction['payment_reference_number'],
+                                 description: incoming_transaction['payment_description'] }
+
+      bank_statement.bank_transactions.create!(transaction_attributes)
+    end
+  end
+end

app/controllers/eis_billing/payment_status_controller.rb

@@ -0,0 +1,54 @@
+module EisBilling
+  class PaymentStatusController < EisBilling::BaseController
+    TYPE = 'PaymentOrders::EveryPay'.freeze
+
+    def update
+      payment_status = define_payment_status(params[:payment_state])
+      invoice = Invoice.find_by(number: params[:order_reference])
+      bank = create_bank_transfer(invoice: invoice, sum: params[:standing_amount], paid_at: params[:transaction_time])
+      create_payment_order(invoice: invoice, everypay_response: params, payment_status: payment_status)
+
+      registrar = invoice.buyer
+      bank.create_activity(registrar, invoice)
+
+      respond_to do |format|
+        format.json do
+          render status: :ok, content_type: 'application/json', layout: false, json: { message: 'ok' }
+        end
+      end
+    end
+
+    private
+
+    def define_payment_status(status)
+      return :paid if PaymentOrders::EveryPay::SUCCESSFUL_PAYMENT.include? status
+
+      :failed
+    end
+
+    def create_payment_order(invoice:, everypay_response:, payment_status:)
+      payment = PaymentOrder.new
+      payment.type = TYPE
+      payment.invoice = invoice
+      payment.response = everypay_response
+      payment.status = payment_status
+      payment.save
+
+      payment
+    end
+
+    def create_bank_transfer(invoice:, sum:, paid_at:)
+      bank = BankTransaction.new
+      bank.description = invoice.order
+      bank.reference_no = invoice.reference_no
+      bank.currency = invoice.currency
+      bank.iban = invoice.seller_iban
+      bank.sum = sum
+      bank.paid_at = paid_at
+      bank.buyer_name = invoice.buyer_name
+      bank.save
+
+      bank
+    end
+  end
+end

app/controllers/registrar/invoices_controller.rb

@@ -17,6 +17,8 @@ class Registrar
 
     def cancel
       @invoice.cancel
+      EisBilling::SendInvoiceStatus.send_info(invoice_number: @invoice.number, status: 'cancelled')
+
       redirect_to [:registrar, @invoice], notice: t('.cancelled')
     end
 

app/jobs/directo_invoice_forward_job.rb

@@ -21,6 +21,7 @@ class DirectoInvoiceForwardJob < ApplicationJob
         Rails.logger.info "[DIRECTO] Invoice #{invoice.number} has been skipped"
         next
       end
+
       @client.invoices.add_with_schema(invoice: invoice.as_directo_json, schema: 'prepayment')
     end
 
@@ -69,6 +70,7 @@ class DirectoInvoiceForwardJob < ApplicationJob
 
   def sync_with_directo
     assign_monthly_numbers if @month
+
     Rails.logger.info("[Directo] - attempting to send following XML:\n #{@client.invoices.as_xml}")
     return if @dry
 

app/jobs/directo_invoice_forward_two_job.rb

@@ -0,0 +1,84 @@
+class DirectoInvoiceForwardTwoJob < ApplicationJob
+  def perform(monthly: false, dry: false)
+    data = nil
+
+    if monthly
+      @month = Time.zone.now - 1.month
+      data = collect_monthly_data
+    else
+      data = collect_receipts_data
+    end
+
+    EisBilling::SendDataToDirecto.send_request(object_data: data, monthly: monthly, dry: dry)
+  end
+
+  def collect_receipts_data
+    unsent_invoices = Invoice.where(in_directo: false).non_cancelled
+    collected_data = []
+
+    unsent_invoices.each do |invoice|
+      unless valid_invoice_conditions?(invoice)
+        Rails.logger.info "[DIRECTO] Invoice #{invoice.number} has been skipped"
+        next
+      end
+
+      collected_data << invoice.as_directo_json
+    end
+
+    collected_data
+  end
+
+  def valid_invoice_conditions?(invoice)
+    if invoice.account_activity.nil? || invoice.account_activity.bank_transaction.nil? ||
+       invoice.account_activity.bank_transaction.sum.nil? ||
+       invoice.account_activity.bank_transaction.sum != invoice.total
+      return false
+
+    end
+
+    true
+  end
+
+  def collect_monthly_data
+    registrars_data = []
+
+    Registrar.where.not(test_registrar: true).find_each do |registrar|
+      registrars_data << {
+        registrar: registrar,
+        registrar_summery: registrar.monthly_summary(month: @month),
+      }
+    end
+
+    registrars_data
+  end
+
+  def mark_invoice_as_sent(invoice: nil, res:, req:)
+    directo_record = Directo.new(response: res.as_json.to_h,
+                                 request: req, invoice_number: res.attributes['docid'].value.to_i)
+    if invoice
+      directo_record.item = invoice
+      invoice.update(in_directo: true)
+    else
+      update_directo_number(num: directo_record.invoice_number)
+    end
+
+    directo_record.save!
+  end
+
+  def update_directo_number(num:)
+    return unless num.to_i > Setting.directo_monthly_number_last.to_i
+
+    Setting.directo_monthly_number_last = num.to_i
+  end
+
+  def directo_counter_exceedable?(invoice_count)
+    min_directo    = Setting.directo_monthly_number_min.presence.try(:to_i)
+    max_directo    = Setting.directo_monthly_number_max.presence.try(:to_i)
+    last_directo   = [Setting.directo_monthly_number_last.presence.try(:to_i),
+                      min_directo].compact.max || 0
+
+    return true if max_directo && max_directo < (last_directo + invoice_count)
+
+    false
+  end
+end

app/jobs/send_e_invoice_two_job.rb

@@ -0,0 +1,44 @@
+class SendEInvoiceTwoJob < ApplicationJob
+  discard_on HTTPClient::TimeoutError
+
+  def perform(invoice_id, payable: true)
+    logger.info "Started to process e-invoice for invoice_id #{invoice_id}"
+    invoice = Invoice.find_by(id: invoice_id)
+    return unless need_to_process_invoice?(invoice: invoice, payable: payable)
+
+    send_invoice_to_eis_billing(invoice: invoice, payable: payable)
+    invoice.update(e_invoice_sent_at: Time.zone.now)
+  rescue StandardError => e
+    log_error(invoice: invoice, error: e)
+    raise e
+  end
+
+  private
+
+  def need_to_process_invoice?(invoice:, payable:)
+    logger.info "Checking if need to process e-invoice #{invoice}, payable: #{payable}"
+    return false if invoice.blank?
+    return false if invoice.do_not_send_e_invoice? && payable
+
+    true
+  end
+
+  def send_invoice_to_eis_billing(invoice:, payable:)
+    result = EisBilling::SendEInvoice.send_request(invoice: invoice, payable: payable)
+    logger.info result.body
+  end
+
+  def log_error(invoice:, error:)
+    id = invoice.try(:id) || invoice
+    message = <<~TEXT.squish
+      There was an error sending e-invoice for invoice with ID # #{id}.
+      The error message was the following: #{error}
+      This job will retry.
+    TEXT
+    logger.error message
+  end
+
+  def logger
+    Rails.logger
+  end
+end

app/models/billing/reference_no.rb

@@ -4,9 +4,14 @@ module Billing
     MULTI_REGEXP = /(\d{2,20})/
 
     def self.generate
+      if Feature.billing_system_integrated?
+        result = EisBilling::GetReferenceNumber.send_request
+        JSON.parse(result.body)['reference_number']
+      else
         base = Base.generate
         "#{base}#{base.check_digit}"
       end
+    end
 
     def self.valid?(ref)
       base = Base.new(ref.to_s[0...-1])

app/models/feature.rb

@@ -1,13 +1,7 @@
 class Feature
-  # def self.obj_and_extensions_statuses_enabled?
+  def self.billing_system_integrated?
-  #   return false if ENV['obj_and_extensions_prohibited'] == 'false'
+    return false if ENV['billing_system_integrated'] == 'false'
-  #
+
-  #   ENV['obj_and_extensions_prohibited'] || false
+    ENV['billing_system_integrated'] || false
-  # end
+  end
-  #
-  # def self.enable_lock_domain_with_new_statuses?
-  #   return false if ENV['enable_lock_domain_with_new_statuses'] == 'false'
-  #
-  #   ENV['enable_lock_domain_with_new_statuses'] || false
-  # end
 end

app/models/invoice.rb

@@ -40,8 +40,38 @@ class Invoice < ApplicationRecord
 
   attribute :vat_rate, ::Type::VatRate.new
 
-  def set_invoice_number
+  def validate_invoice_number(result)
-    last_no = Invoice.order(number: :desc).limit(1).pick(:number)
+    response = JSON.parse(result.body)
+
+    billing_restrictions_issue if response['code'] == '403'
+    billing_out_of_range_issue if response['error'] == 'out of range'
+  end
+
+  def billing_restrictions_issue
+    errors.add(:base, I18n.t('cannot get access'))
+    logger.error('PROBLEM WITH TOKEN')
+    throw(:abort)
+  end
+
+  def billing_out_of_range_issue
+    errors.add(:base, I18n.t('failed_to_generate_invoice_invoice_number_limit_reached'))
+    logger.error('INVOICE NUMBER LIMIT REACHED, COULD NOT GENERATE INVOICE')
+    throw(:abort)
+  end
+
+  def invoice_number_from_billing
+    result = EisBilling::GetInvoiceNumber.send_invoice
+    validate_invoice_number(result)
+
+    self.number = JSON.parse(result.body)['invoice_number'].to_i
+  end
+
+  def generate_invoice_number_legacy
+    last_no = Invoice.all
+                     .where(number: Setting.invoice_number_min.to_i...Setting.invoice_number_max.to_i)
+                     .order(number: :desc)
+                     .limit(1)
+                     .pick(:number)
 
     if last_no && last_no >= Setting.invoice_number_min.to_i
       self.number = last_no + 1
@@ -51,9 +81,15 @@ class Invoice < ApplicationRecord
 
     return if number <= Setting.invoice_number_max.to_i
 
-    errors.add(:base, I18n.t('failed_to_generate_invoice_invoice_number_limit_reached'))
+    billing_out_of_range_issue
-    logger.error('INVOICE NUMBER LIMIT REACHED, COULD NOT GENERATE INVOICE')
+  end
-    throw(:abort)
+
+  def set_invoice_number
+    if Feature.billing_system_integrated?
+      invoice_number_from_billing
+    else
+      generate_invoice_number_legacy
+    end
   end
 
   def to_s

app/models/registrar.rb

@@ -107,7 +107,20 @@ class Registrar < ApplicationRecord
                    .deliver_later(wait: 1.minute)
     end
 
+    if Feature.billing_system_integrated?
+      add_invoice_instance = EisBilling::AddDeposits.new(invoice)
+      result = add_invoice_instance.send_invoice
+
+      link = JSON.parse(result.body)['everypay_link']
+
+      invoice.update(payment_link: link)
+    end
+
+    if Feature.billing_system_integrated?
+      SendEInvoiceTwoJob.set(wait: 1.minute).perform_now(invoice.id, payable: payable)
+    else
       SendEInvoiceJob.set(wait: 1.minute).perform_now(invoice.id, payable: payable)
+    end
 
     invoice
   end

app/services/eis_billing/add_deposits.rb

@@ -0,0 +1,37 @@
+module EisBilling
+  class AddDeposits < EisBilling::Base
+    attr_reader :invoice
+
+    def initialize(invoice)
+      @invoice = invoice
+    end
+
+    def send_invoice
+      send_request(json_obj: parse_invoice)
+    end
+
+    private
+
+    def parse_invoice
+      data = {}
+      data[:transaction_amount] = invoice.total.to_s
+      data[:order_reference] = invoice.number
+      data[:customer_name] = invoice.buyer_name
+      data[:customer_email] = invoice.buyer_email
+      data[:custom_field1] = invoice.description
+      data[:custom_field2] = INITIATOR
+      data[:invoice_number] = invoice.number
+
+      data
+    end
+
+    def send_request(json_obj:)
+      http = EisBilling::Base.base_request(url: invoice_generator_url)
+      http.post(invoice_generator_url, json_obj.to_json, EisBilling::Base.headers)
+    end
+
+    def invoice_generator_url
+      "#{BASE_URL}/api/v1/invoice_generator/invoice_generator"
+    end
+  end
+end

app/services/eis_billing/base.rb

@@ -0,0 +1,35 @@
+module EisBilling
+  class Base
+    BASE_URL = ENV['eis_billing_system_base_url'] || 'https://st-billing.infra.tld.ee'
+    INITIATOR = 'registry'.freeze
+
+    def self.base_request(url:)
+      uri = URI(url)
+      http = Net::HTTP.new(uri.host, uri.port)
+
+      http.use_ssl = true unless Rails.env.development?
+      http.verify_mode = OpenSSL::SSL::VERIFY_NONE if Rails.env.development?
+
+      http
+    end
+
+    def self.generate_token
+      JWT.encode(payload, billing_secret)
+    end
+
+    def self.payload
+      { initiator: INITIATOR }
+    end
+
+    def self.headers
+      {
+        'Authorization' => "Bearer #{generate_token}",
+        'Content-Type' => 'application/json',
+      }
+    end
+
+    def self.billing_secret
+      ENV['billing_secret']
+    end
+  end
+end

app/services/eis_billing/get_invoice_number.rb

@@ -0,0 +1,16 @@
+module EisBilling
+  class GetInvoiceNumber < EisBilling::Base
+    def self.send_invoice
+      send_request
+    end
+
+    def self.send_request
+      http = EisBilling::Base.base_request(url: invoice_number_generator_url)
+      http.post(invoice_number_generator_url, nil, EisBilling::Base.headers)
+    end
+
+    def self.invoice_number_generator_url
+      "#{BASE_URL}/api/v1/invoice_generator/invoice_number_generator"
+    end
+  end
+end

app/services/eis_billing/get_reference_number.rb

@@ -0,0 +1,22 @@
+module EisBilling
+  class GetReferenceNumber < EisBilling::Base
+    def self.send_request
+      send_it
+    end
+
+    def self.obj_data
+      {
+        initiator: INITIATOR,
+      }
+    end
+
+    def self.send_it
+      http = EisBilling::Base.base_request(url: reference_number_generator_url)
+      http.post(reference_number_generator_url, obj_data.to_json, EisBilling::Base.headers)
+    end
+
+    def self.reference_number_generator_url
+      "#{EisBilling::Base::BASE_URL}/api/v1/invoice_generator/reference_number_generator"
+    end
+  end
+end

app/services/eis_billing/send_data_to_directo.rb

@@ -0,0 +1,23 @@
+module EisBilling
+  class SendDataToDirecto < EisBilling::Base
+    def self.send_request(object_data:, monthly:, dry:)
+      send_info(object_data: object_data, monthly: monthly, dry: dry)
+    end
+
+    def self.send_info(object_data:, monthly:, dry:)
+      prepared_data = {
+        invoice_data: object_data,
+        monthly: monthly,
+        dry: dry,
+        initiator: INITIATOR,
+      }
+
+      http = EisBilling::Base.base_request(url: directo_url)
+      http.post(directo_url, prepared_data.to_json, EisBilling::Base.headers)
+    end
+
+    def self.directo_url
+      "#{BASE_URL}/api/v1/directo/directo"
+    end
+  end
+end

app/services/eis_billing/send_e_invoice.rb

@@ -0,0 +1,52 @@
+module EisBilling
+  class SendEInvoice < EisBilling::Base
+    def self.send_request(invoice:, payable:)
+      send_info(invoice: invoice, payable: payable)
+    end
+
+    def self.send_info(invoice:, payable:)
+      items = []
+      prepared_data = prepare_data(invoice: invoice, payable: payable)
+
+      invoice.items.each do |invoice_item|
+        items << prepare_item(invoice_item)
+      end
+
+      prepared_data[:items] = items
+
+      http = EisBilling::Base.base_request(url: e_invoice_url)
+      http.post(e_invoice_url, prepared_data.to_json, EisBilling::Base.headers)
+    end
+
+    def self.prepare_item(invoice_item)
+      {
+        description: invoice_item.description,
+        price: invoice_item.price,
+        quantity: invoice_item.quantity,
+        unit: invoice_item.unit,
+        subtotal: invoice_item.subtotal,
+        vat_rate: invoice_item.vat_rate,
+        vat_amount: invoice_item.vat_amount,
+        total: invoice_item.total,
+      }
+    end
+
+    def self.prepare_data(invoice:, payable:)
+      {
+        invoice: invoice,
+        vat_amount: invoice.vat_amount,
+        invoice_subtotal: invoice.subtotal,
+        buyer_billing_email: invoice.buyer.billing_email,
+        buyer_e_invoice_iban: invoice.buyer.e_invoice_iban,
+        seller_country_code: invoice.seller_country_code,
+        buyer_country_code: invoice.buyer_country_code,
+        payable: payable,
+        initiator: EisBilling::Base::INITIATOR,
+      }
+    end
+
+    def self.e_invoice_url
+      "#{BASE_URL}/api/v1/e_invoice/e_invoice"
+    end
+  end
+end

app/services/eis_billing/send_invoice_status.rb

@@ -0,0 +1,21 @@
+module EisBilling
+  class SendInvoiceStatus < EisBilling::Base
+    def self.send_info(invoice_number:, status:)
+      send_request(invoice_number: invoice_number, status: status)
+    end
+
+    def self.send_request(invoice_number:, status:)
+      json_obj = {
+        invoice_number: invoice_number,
+        status: status,
+      }
+
+      http = EisBilling::Base.base_request(url: invoice_status_url)
+      http.post(invoice_status_url, json_obj.to_json, EisBilling::Base.headers)
+    end
+
+    def self.invoice_status_url
+      "#{BASE_URL}/api/v1/invoice_generator/invoice_status"
+    end
+  end
+end

app/views/eis_billing/directo_response/update.html.erb

@@ -0,0 +1,2 @@
+<h1>EisBilling::DirectoResponse#update</h1>
+<p>Find me in app/views/eis_billing/directo_response/update.html.erb</p>

app/views/eis_billing/e_invoice_response/update.html.erb

@@ -0,0 +1,2 @@
+<h1>EisBilling::EInvoiceResponse#update</h1>
+<p>Find me in app/views/eis_billing/e_invoice_response/update.html.erb</p>

app/views/registrar/invoices/partials/_banklinks.haml

@@ -1,7 +1,8 @@
 %h4= t('registrar.invoices.pay_invoice')
 %hr
 
-- locals[:payment_channels].each do |meth|
+  - if @invoice.payment_link.present?
-  - meth = meth.strip
+    = link_to @invoice.payment_link, target: :_blank do
-  = link_to registrar_payment_with_path(meth, invoice_id: params[:id]), id: meth do
+      = image_tag("everypay.png", class: 'everypay', style: "width: 100px; height: 20px;")
-    = image_tag("#{meth}.png")
+  - else
+    = "No everypay link"

config/application.yml.sample

@@ -235,3 +235,11 @@ registry_demo_accredited_users_url: 'http://registry.test/api/v1/accreditation_c
 a_and_aaaa_validation_timeout: '1'
 nameserver_validation_timeout: '1'
 
+eis_billing_system_base_url: 'http://eis_billing_system:3000'
+billing_secret: acd50ed44524d24c826d724fda922b790ca4130b02d62bcc8f85f1b863195ba8d155c4346037364eb59135d1e9dcba6cd8a4046ee4aef3c3a0878fcdf8e85efd
+billing_system_integrated: 'true'
+
+secret_access_word: 'please-Give-Me-accesS'
+secret_word: 'this-secret-should-be-change'
+allow_accr_endspoints: 'true'
+

config/credentials.yml.enc

@@ -0,0 +1 @@
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--YBWnRjhG+BqNrfar--RcZCpjUq+MNhMOydjZWWTA==

config/routes.rb

@@ -11,6 +11,13 @@ Rails.application.routes.draw do
     mount PgHero::Engine, at: "pghero"
   end
 
+  namespace :eis_billing do
+    put '/payment_status', to: 'payment_status#update', as: 'payment_status', :format => false, :defaults => { :format => 'json' }
+    put '/directo_response', to: 'directo_response#update', as: 'directo_response'
+    put '/e_invoice_response', to: 'e_invoice_response#update', as: 'e_invoice_response'
+    post '/lhv_connect_transactions', to: 'lhv_connect_transactions#create', as: 'lhv_connect_transactions'
+  end
+
   namespace :epp do
     constraints(EppConstraint.new(:session)) do
       get 'session/hello', to: 'sessions#hello', as: 'hello'

db/migrate/20220124105717_add_payment_link_to_invoice.rb

@@ -0,0 +1,5 @@
+class AddPaymentLinkToInvoice < ActiveRecord::Migration[6.1]
+  def change
+    add_column :invoices, :payment_link, :string
+  end
+end

db/structure.sql

@@ -5411,6 +5411,5 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20220413073315'),
 ('20220413084536'),
 ('20220413084748'),
-('20220504090512');
+('20220504090512'),
-
+('20220406085500');
-

lib/tasks/eis_billing_import_data.rake

@@ -0,0 +1,85 @@
+BASE_URL = ENV['eis_billing_system_base_url'] || 'https://st-billing.infra.tld.ee'
+INITIATOR = 'registry'.freeze
+
+namespace :eis_billing do
+  desc 'One time task to export invoice data to billing system'
+  task export_invoices: :environment do
+    parsed_data = []
+    status = 'unpaid'
+
+    Invoice.all.each do |invoice|
+      if invoice.cancelled?
+        status = 'cancelled'
+      else
+        status = invoice.paid? ? 'paid' : 'unpaid'
+      end
+
+      transaction_time = invoice.receipt_date if invoice.paid?
+
+      parsed_data << {
+        invoice_number: invoice.number,
+        initiator: 'registry',
+        transaction_amount: invoice.total,
+        status: status,
+        in_directo: invoice.in_directo,
+        e_invoice_sent_at: invoice.e_invoice_sent_at,
+        transaction_time: transaction_time
+      }
+    end
+
+    base_request(url: import_invoice_data_url, json_obj: parsed_data)
+  end
+
+  desc 'One time task to export reference number of registrars to billing system'
+  task export_references: :environment do
+    parsed_data = []
+    Registrar.all.each do |registrar|
+      parsed_data << {
+        reference_number: registrar.reference_no,
+        initiator: 'registry',
+        registrar_name: registrar.name
+      }
+    end
+
+    base_request(url: import_reference_data_url, json_obj: parsed_data)
+  end
+end
+
+def import_reference_data_url
+  "#{BASE_URL}/api/v1/import_data/reference_data"
+end
+
+def import_invoice_data_url
+  "#{BASE_URL}/api/v1/import_data/invoice_data"
+end
+
+def base_request(url:, json_obj:)
+  uri = URI(url)
+  http = Net::HTTP.new(uri.host, uri.port)
+
+  unless Rails.env.development?
+    http.use_ssl = true
+    http.verify_mode = OpenSSL::SSL::VERIFY_NONE
+  end
+
+  http.post(url, json_obj.to_json, headers)
+end
+
+def generate_token
+  JWT.encode(payload, billing_secret)
+end
+
+def payload
+  { initiator: INITIATOR }
+end
+
+def headers
+  {
+    'Authorization' => "Bearer #{generate_token}",
+    'Content-Type' => 'application/json',
+  }
+end
+
+def self.billing_secret
+  ENV['billing_secret']
+end

lib/tasks/registrars/reload_balance.rake

@@ -17,7 +17,7 @@ namespace :registrars do
         next if reload_pending || !threshold_reached
 
         Registrar.transaction do
-          registrar.issue_prepayment_invoice(reload_amount)
+          registrar.issue_prepayment_invoice(reload_amount, 'reload balance')
           registrar.settings['balance_auto_reload']['pending'] = true
           registrar.save!
         end

test/integration/admin_area/invoices_test.rb

@@ -24,6 +24,21 @@ class AdminAreaInvoicesIntegrationTest < ApplicationIntegrationTest
   end
 
   def test_create_new_invoice
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       visit new_admin_invoice_path
 
       assert_text 'Create new invoice'
@@ -33,6 +48,7 @@ class AdminAreaInvoicesIntegrationTest < ApplicationIntegrationTest
 
       assert_equal page.status_code, 200
     end
+  end
 
   def test_visit_list_of_invoices_pages
     visit admin_invoices_path

test/integration/eis_billing/directo_response_test.rb

@@ -0,0 +1,43 @@
+require 'test_helper'
+
+class DirectoResponseTest < ApplicationIntegrationTest
+  setup do
+    sign_in users(:api_bestnames)
+
+    @invoice = invoices(:one)
+    @response_xml = "<?xml version='1.0' encoding='UTF-8'?><results><Result Type='0' Desc='OK' docid='#{@invoice.number}' doctype='ARVE' submit='Invoices'/></results>"
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
+  end
+
+  def test_should_created_directo_instance
+    if Feature.billing_system_integrated?
+      directo_response_from_billing = {
+        response: @response_xml,
+        month: true
+      }
+
+      assert_difference 'Directo.count', 1 do
+        put eis_billing_directo_response_path, params: JSON.parse(directo_response_from_billing.to_json),
+        headers: { 'HTTP_COOKIE' => 'session=api_bestnames' }
+      end
+    end
+  end
+
+  def test_should_update_related_invoice
+    if Feature.billing_system_integrated?
+      directo_response_from_billing = {
+        response: @response_xml
+      }
+
+      refute @invoice.in_directo
+
+      assert_difference 'Directo.count', 1 do
+        put eis_billing_directo_response_path, params: JSON.parse(directo_response_from_billing.to_json),
+        headers: { 'HTTP_COOKIE' => 'session=api_bestnames' }
+      end
+
+      @invoice.reload
+      assert @invoice.in_directo
+    end
+  end
+end

test/integration/eis_billing/e_invoice_response_test.rb

@@ -0,0 +1,17 @@
+require 'test_helper'
+
+class EInvoiceResponseTest < ApplicationIntegrationTest
+  setup do
+    sign_in users(:api_bestnames)
+    @invoice = invoices(:one)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
+  end
+
+  def test_invoice_should_be_mark_as_sent
+    assert_nil @invoice.e_invoice_sent_at
+    put eis_billing_e_invoice_response_path, params: { invoice_number: @invoice.number}
+
+    @invoice.reload
+    assert_not_nil @invoice.e_invoice_sent_at
+  end
+end

test/integration/eis_billing/lhv_connect_transactions_test.rb

@@ -0,0 +1,43 @@
+require 'test_helper'
+
+class LhvConnectTransactionsIntegrationTest < ApplicationIntegrationTest
+  setup do
+    @invoice = invoices(:unpaid)
+    sign_in users(:api_bestnames)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
+  end
+
+  def test_should_saved_transaction_data
+    if Feature.billing_system_integrated?
+      test_transaction_1 = OpenStruct.new(amount: 0.1,
+        currency: 'EUR',
+        date: Time.zone.today,
+        payment_reference_number: '2199812',
+        payment_description: "description 2199812")
+
+      test_transaction_2 = OpenStruct.new(amount: 0.1,
+        currency: 'EUR',
+        date: Time.zone.today,
+        payment_reference_number: '2199813',
+        payment_description: "description 2199813")
+
+      test_transaction_3 = OpenStruct.new(amount: 0.1,
+        currency: 'EUR',
+        date: Time.zone.today,
+        payment_reference_number: '2199814',
+        payment_description: "description 2199814")
+
+      lhv_transactions = []
+      lhv_transactions << test_transaction_1
+      lhv_transactions << test_transaction_2
+      lhv_transactions << test_transaction_3
+
+      assert_difference 'BankStatement.count', 3 do
+        assert_difference 'BankTransaction.count', 3 do
+          post eis_billing_lhv_connect_transactions_path,  params: { "_json" => JSON.parse(lhv_transactions.to_json) },
+          headers: { 'HTTP_COOKIE' => 'session=api_bestnames' }
+        end
+      end
+    end
+  end
+end

test/models/bank_transaction_test.rb

@@ -16,6 +16,10 @@ class BankTransactionTest < ActiveSupport::TestCase
   end
 
   def test_binds_if_this_sum_invoice_already_present
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
       create_payable_invoice(number: '2222', total: 10, reference_no: '1234567')
       another_invoice = @invoice.dup
       another_invoice.save(validate: false)
@@ -38,8 +42,13 @@ class BankTransactionTest < ActiveSupport::TestCase
         transaction.autobind_invoice
       end
     end
+  end
 
   def test_binds_if_this_sum_cancelled_invoice_already_present
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
       create_payable_invoice(number: '2222', total: 10, reference_no: '1234567')
       another_invoice = @invoice.dup
       another_invoice.save(validate: false)
@@ -59,8 +68,13 @@ class BankTransactionTest < ActiveSupport::TestCase
         transaction.autobind_invoice
       end
     end
+  end
 
   def test_marks_the_first_one_as_paid_if_same_sum
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
       create_payable_invoice(number: '2222', total: 10, reference_no: '1234567')
       another_invoice = @invoice.dup
       another_invoice.save(validate: false)
@@ -83,6 +97,7 @@ class BankTransactionTest < ActiveSupport::TestCase
       assert(@invoice.paid?)
       assert_not(another_invoice.paid?)
     end
+  end
 
   def test_matches_against_invoice_nubmber_and_reference_number_in_description
     create_payable_invoice(number: '2222', total: 10, reference_no: '1234567')

test/models/billing/reference_no_test.rb

@@ -7,7 +7,12 @@ class ReferenceNoTest < ActiveSupport::TestCase
   end
 
   def test_generated_reference_number_conforms_to_format
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/reference_number_generator")
+        .to_return(status: 200, body: "{\"reference_number\":\"12332\"}", headers: {})
+
       reference_no = Billing::ReferenceNo.generate
       assert_match Billing::ReferenceNo::REGEXP, reference_no
     end
   end
+end

test/models/invoice_test.rb

@@ -5,6 +5,7 @@ class InvoiceTest < ActiveSupport::TestCase
 
   setup do
     @invoice = invoices(:one)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
   end
 
   def test_fixture_is_valid
@@ -79,6 +80,10 @@ class InvoiceTest < ActiveSupport::TestCase
   end
 
   def test_buyer_vat_no_is_taken_from_registrar_by_default
+    invoice_n = Invoice.order(number: :desc).last.number
+    response = OpenStruct.new(body: "{\"invoice_number\":\"#{invoice_n + 3}\"}")
+    Spy.on(EisBilling::GetInvoiceNumber, :send_invoice).and_return(response)
+
     registrar = registrars(:bestnames)
     registrar.vat_no = 'US1234'
     invoice = @invoice.dup
@@ -113,31 +118,69 @@ class InvoiceTest < ActiveSupport::TestCase
   end
 
   def test_creates_invoice_with_bank_transaction_total
+    if Feature.billing_system_integrated?
       registrar = registrars(:bestnames)
       transaction = bank_transactions(:one).dup
       transaction.reference_no = registrar.reference_no
       transaction.sum = 250
 
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator")
+        .to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator")
+        .to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       invoice = Invoice.create_from_transaction!(transaction)
       assert_equal 250, invoice.total
 
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 4}\"}", headers: {})
+
       transaction.sum = 146.88
       invoice = Invoice.create_from_transaction!(transaction)
       assert_equal 146.88, invoice.total
 
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 5}\"}", headers: {})
+
       transaction.sum = 0.99
       invoice = Invoice.create_from_transaction!(transaction)
       assert_equal 0.99, invoice.total
     end
+  end
 
   def test_emails_invoice_after_creating_topup_invoice
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       registrar = registrars(:bestnames)
       transaction = bank_transactions(:one).dup
       transaction.reference_no = registrar.reference_no
       transaction.sum = 250
 
+      response = OpenStruct.new(body: "{\"invoice_number\":\"#{invoice_n + 3}\"}")
+      Spy.on(EisBilling::GetInvoiceNumber, :send_invoice).and_return(response)
+
       assert_emails 1 do
         Invoice.create_from_transaction!(transaction)
       end
     end
   end
+end

test/models/registrar_test.rb

@@ -6,6 +6,7 @@ class RegistrarTest < ActiveJob::TestCase
     @original_default_language = Setting.default_language
     @original_days_to_keep_invoices_active = Setting.days_to_keep_invoices_active
     @old_validation_type = Truemail.configure.default_validation_type
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
   end
 
   teardown do
@@ -144,6 +145,20 @@ class RegistrarTest < ActiveJob::TestCase
   end
 
   def test_issues_new_invoice
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       travel_to Time.zone.parse('2010-07-05')
       Setting.days_to_keep_invoices_active = 10
 
@@ -152,16 +167,34 @@ class RegistrarTest < ActiveJob::TestCase
       assert_equal Date.parse('2010-07-05'), invoice.issue_date
       assert_equal Date.parse('2010-07-15'), invoice.due_date
     end
+  end
 
   def test_issues_e_invoice_along_with_invoice
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+    end
+
     EInvoice::Providers::TestProvider.deliveries.clear
 
     perform_enqueued_jobs do
       @registrar.issue_prepayment_invoice(100)
     end
 
+    unless Feature.billing_system_integrated?
       assert_equal 1, EInvoice::Providers::TestProvider.deliveries.count
     end
+  end
 
   def test_invalid_without_address_street
     registrar = valid_registrar

test/services/send_data_to_directo_test.rb

@@ -0,0 +1,15 @@
+require 'test_helper'
+
+class SendDataToDirectoTest < ActiveSupport::TestCase
+  setup do
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
+  end
+
+  def test_should_send_data_to_billing_directo
+    stub_request(:post, "https://eis_billing_system:3000/api/v1/directo/directo").
+    to_return(status: 200, body: "ok", headers: {})
+
+    res = EisBilling::SendDataToDirecto.send_request(object_data: [], monthly: true, dry: true)
+    assert_equal res.body, "ok"
+  end
+end

test/system/admin_area/bank_statement_test.rb

@@ -6,6 +6,7 @@ class AdminAreaBankStatementTest < ApplicationSystemTestCase
     travel_to Time.zone.parse('2010-07-05 00:30:00')
 
     @invoice = invoices(:one)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
   end
 
   def test_update_bank_statement
@@ -54,7 +55,21 @@ class AdminAreaBankStatementTest < ApplicationSystemTestCase
   end
 
   def test_can_bind_statement_transactions
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator")
+        .to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
       registrar = registrars(:bestnames)
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator")
+        .to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response")
+        .to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice")
+        .to_return(status: 200, body: "", headers: {})
+
       registrar.issue_prepayment_invoice(500)
       invoice = registrar.invoices.last
 
@@ -73,6 +88,7 @@ class AdminAreaBankStatementTest < ApplicationSystemTestCase
 
       assert_text 'Invoices were fully binded'
     end
+  end
 
   def create_bank_statement
     visit admin_bank_statements_path

test/system/admin_area/invoices_test.rb

@@ -11,6 +11,7 @@ class AdminAreaInvoicesTest < ApplicationSystemTestCase
   end
 
   def test_cancels_an_invoice
+    Spy.on(EisBilling::SendInvoiceStatus, :send_info).and_return(true)
     @invoice.account_activity = nil
     assert @invoice.cancellable?
 

test/system/admin_area/registrars_test.rb

@@ -14,6 +14,10 @@ class AdminRegistrarsSystemTest < ApplicationSystemTestCase
   end
 
   def test_creates_new_registrar
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/reference_number_generator").
+        to_return(status: 200, body: "{\"reference_number\":\"12332\"}", headers: {})
+
       assert_nil Registrar.find_by(name: 'Acme Ltd')
 
       visit admin_registrars_path
@@ -34,6 +38,7 @@ class AdminRegistrarsSystemTest < ApplicationSystemTestCase
       assert_text 'Registrar has been successfully created'
       assert_text 'Acme Ltd'
     end
+  end
 
   def test_updates_registrar
     assert_not_equal 'New name', @registrar.name

test/system/registrar_area/add_deposits_test.rb

@@ -0,0 +1,12 @@
+require 'application_system_test_case'
+
+class AddDepositsTest < ApplicationSystemTestCase
+  include ActionMailer::TestHelper
+
+  setup do
+    sign_in users(:api_bestnames)
+    @invoice = invoices(:one)
+
+    ActionMailer::Base.deliveries.clear
+  end
+end

test/system/registrar_area/billing/balance_top_up_test.rb

@@ -4,6 +4,10 @@ class BalanceTopUpTest < ApplicationSystemTestCase
   setup do
     sign_in users(:api_bestnames)
     @original_registry_vat_rate = Setting.registry_vat_prc
+
+    eis_response = OpenStruct.new(body: "{\"payment_link\":\"http://link.test\"}")
+    Spy.on_instance_method(EisBilling::AddDeposits, :send_invoice).and_return(eis_response)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
   end
 
   teardown do
@@ -11,6 +15,17 @@ class BalanceTopUpTest < ApplicationSystemTestCase
   end
 
   def test_creates_new_invoice
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response")
+        .to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice")
+        .to_return(status: 200, body: "", headers: {})
+
       Setting.registry_vat_prc = 0.1
 
       visit registrar_invoices_url
@@ -28,3 +43,4 @@ class BalanceTopUpTest < ApplicationSystemTestCase
       assert_text 'Please pay the following invoice'
     end
   end
+end

test/system/registrar_area/invoices/new_invoice_payment_test.rb

@@ -3,6 +3,8 @@ require 'application_system_test_case'
 class NewInvoicePaymentTest < ApplicationSystemTestCase
   def setup
     super
+    eis_response = OpenStruct.new(body: "{\"payment_link\":\"http://link.test\"}")
+    Spy.on_instance_method(EisBilling::AddDeposits, :send_invoice).and_return(eis_response)
 
     @original_vat_prc = Setting.registry_vat_prc
     Setting.registry_vat_prc = 0.2
@@ -23,26 +25,4 @@ class NewInvoicePaymentTest < ApplicationSystemTestCase
     fill_in 'Description', with: 'My first invoice'
     click_link_or_button 'Add'
   end
-
-  def test_create_new_SEB_payment
-    create_invoice_and_visit_its_page
-    click_link_or_button 'seb'
-    form = page.find('form')
-    assert_equal('https://www.seb.ee/cgi-bin/dv.sh/ipank.r', form['action'])
-    assert_equal('post', form['method'])
-    assert_equal('240.00', form.find_by_id('VK_AMOUNT', visible: false).value)
-  end
-
-  def test_create_new_Every_Pay_payment
-    create_invoice_and_visit_its_page
-    click_link_or_button 'every_pay'
-    expected_hmac_fields = 'account_id,amount,api_username,callback_url,' +
-                           'customer_url,hmac_fields,nonce,order_reference,timestamp,transaction_type'
-
-    form = page.find('form')
-    assert_equal('https://igw-demo.every-pay.com/transactions/', form['action'])
-    assert_equal('post', form['method'])
-    assert_equal(expected_hmac_fields, form.find_by_id('hmac_fields', visible: false).value)
-    assert_equal('240.00', form.find_by_id('amount', visible: false).value)
-  end
 end

test/system/registrar_area/invoices/new_test.rb

@@ -6,6 +6,9 @@ class NewInvoiceTest < ApplicationSystemTestCase
 
     @user = users(:api_bestnames)
     sign_in @user
+
+    eis_response = OpenStruct.new(body: "{\"payment_link\":\"http://link.test\"}")
+    Spy.on_instance_method(EisBilling::AddDeposits, :send_invoice).and_return(eis_response)
   end
 
   def test_show_balance
@@ -14,6 +17,17 @@ class NewInvoiceTest < ApplicationSystemTestCase
   end
 
   def test_create_new_invoice_with_positive_amount
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       visit registrar_invoices_path
       click_link_or_button 'Add deposit'
       fill_in 'Amount', with: '200.00'
@@ -24,12 +38,24 @@ class NewInvoiceTest < ApplicationSystemTestCase
       end
 
       assert_text 'Please pay the following invoice'
-    assert_text 'Invoice no. 131050'
+      assert_text "Invoice no. #{invoice_n + 3}"
       assert_text 'Subtotal 200,00 €'
       assert_text 'Pay invoice'
     end
+  end
 
   def test_create_new_invoice_with_comma_in_number
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       visit registrar_invoices_path
       click_link_or_button 'Add deposit'
       fill_in 'Amount', with: '200,00'
@@ -40,10 +66,11 @@ class NewInvoiceTest < ApplicationSystemTestCase
       end
 
       assert_text 'Please pay the following invoice'
-    assert_text 'Invoice no. 131050'
+      assert_text "Invoice no. #{invoice_n + 3}"
       assert_text 'Subtotal 200,00 €'
       assert_text 'Pay invoice'
     end
+  end
 
   def test_create_new_invoice_fails_when_amount_is_0
     visit registrar_invoices_path

test/system/registrar_area/invoices_test.rb

@@ -8,9 +8,13 @@ class RegistrarAreaInvoicesTest < ApplicationSystemTestCase
     @invoice = invoices(:one)
 
     ActionMailer::Base.deliveries.clear
+    eis_response = OpenStruct.new(body: "{\"payment_link\":\"http://link.test\"}")
+    Spy.on_instance_method(EisBilling::AddDeposits, :send_invoice).and_return(eis_response)
   end
 
   def test_cancels_an_invoice
+    Spy.on(EisBilling::SendInvoiceStatus, :send_info).and_return(true)
+
     @invoice.account_activity = nil
     assert @invoice.cancellable?
 
@@ -40,4 +44,18 @@ class RegistrarAreaInvoicesTest < ApplicationSystemTestCase
     assert_current_path registrar_invoice_path(@invoice)
     assert_text 'Invoice has been sent'
   end
+
+  def test_if_invoice_unpaid_and_not_generated_link_comes_then_should_render_no_everypay_link
+    invoice = invoices(:unpaid)
+    visit registrar_invoice_url(invoice)
+
+    assert_text 'No everypay link'
+  end
+
+  def test_if_invoice_aldready_paid_there_should_not_any_everypay_link
+    visit registrar_invoice_url(@invoice)
+
+    assert_no_text 'No everypay link'
+    assert_no_text 'Everypay link'
+  end
 end

test/tasks/invoices/process_payments_test.rb

@@ -77,6 +77,23 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
   end
 
   def test_if_invoice_is_overdue_than_48_hours
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+
+      Spy.on_instance_method(SendEInvoiceTwoJob, :perform_now).and_return(true)
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
       assert_not @invoice.paid?
 
       @account_activity.update(activity_type: "add_credit", bank_transaction: nil, created_at: Time.zone.today - 3.days, creator_str: 'AdminUser')
@@ -89,6 +106,7 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
         end
       end
     end
+  end
 
   def test_doubles_are_valid
     assert Lhv::ConnectApi.method_defined?(:credit_debit_notification_messages)
@@ -143,7 +161,23 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
     assert payment_order.failed?
   end
 
-  def test_credits_registrar_account_without_invoice_beforehand
+  def test_credits_registrar_athout_invoice_beforehand
+    if Feature.billing_system_integrated?
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}")
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      Spy.on_instance_method(SendEInvoiceTwoJob, :perform_now).and_return(true)
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
       registrar = registrars(:bestnames)
 
       assert_changes -> { registrar.accounts.first.balance } do
@@ -154,6 +188,7 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
         run_task
       end
     end
+  end
 
   def test_topup_creates_invoice_with_total_of_transactioned_amount
     registrar = registrars(:bestnames)
@@ -163,6 +198,20 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
   end
 
   def test_topup_creates_invoice_and_send_it_as_paid
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
       registrar = registrars(:bestnames)
       @invoice.payment_orders.destroy_all
       @invoice.destroy
@@ -183,6 +232,7 @@ class ProcessPaymentsTaskTest < ActiveJob::TestCase
 
       assert_equal 0.1, registrar.invoices.last.total
     end
+  end
 
   def test_output
     assert_output "Transactions processed: 1\n" do

test/tasks/registrars/reload_balance_test.rb

@@ -5,6 +5,7 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
 
   setup do
     @registrar = registrars(:bestnames)
+    Spy.on_instance_method(EisBilling::BaseController, :authorized).and_return(true)
   end
 
   def test_issues_invoice_when_auto_reload_is_enabled_and_threshold_reached
@@ -20,6 +21,20 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
   end
 
   def test_issues_invoice_when_auto_reload_is_enabled_and_threshold_reached
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+      to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+      to_return(status: 200, body: "", headers: {})
+
       reload_amount = 100
       registrar = registrar_with_auto_reload_enabled_and_threshold_reached(reload_amount)
 
@@ -30,6 +45,7 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
       invoice = registrar.invoices.last
       assert_equal Time.zone.today, invoice.e_invoice_sent_at.to_date
     end
+  end
 
   def test_skips_issuing_invoice_when_threshold_is_not_reached
     registrar = registrar_with_auto_reload_enabled_and_threshold_not_reached
@@ -50,6 +66,20 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
   end
 
   def test_marks_registrar_as_pending_balance_reload
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+        
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+  
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       registrar = registrar_with_auto_reload_enabled_and_threshold_reached
 
       capture_io { run_task }
@@ -57,8 +87,23 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
 
       assert registrar.settings['balance_auto_reload']['pending']
     end
+  end
 
   def test_output
+    if Feature.billing_system_integrated?
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_generator").
+        to_return(status: 200, body: "{\"everypay_link\":\"http://link.test\"}", headers: {})
+
+      invoice_n = Invoice.order(number: :desc).last.number
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/invoice_generator/invoice_number_generator").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}", headers: {})
+
+      stub_request(:put, "https://registry:3000/eis_billing/e_invoice_response").
+        to_return(status: 200, body: "{\"invoice_number\":\"#{invoice_n + 3}\"}, {\"date\":\"#{Time.zone.now-10.minutes}\"}", headers: {})
+
+      stub_request(:post, "https://eis_billing_system:3000/api/v1/e_invoice/e_invoice").
+        to_return(status: 200, body: "", headers: {})
+
       reload_amount = 100
       registrar = registrar_with_auto_reload_enabled_and_threshold_reached(reload_amount)
       assert_equal 'Best Names', registrar.name
@@ -67,6 +112,7 @@ class ReloadBalanceTaskTest < ActiveSupport::TestCase
         run_task
       end
     end
+  end
 
   private