Bind specific invoice when paid via Banklink / EveryPay

Fix styling issues

Move redundant logic to shared base

app/controllers/registrar/payments_controller.rb

@@ -27,6 +27,8 @@ def back
       opts = { response: params }
       @payment = ::PaymentOrders.create_with_type(params[:bank], invoice, opts)
       if @payment.valid_response_from_intermediary? && @payment.settled_payment?
+        Rails.logger.info("User paid invoice ##{invoice.number} successfully")
+
         @payment.complete_transaction
 
         if invoice.paid?

app/models/bank_transaction.rb

@@ -48,6 +48,7 @@ def bind_invoice(invoice_no)
     end
 
     invoice = Invoice.find_by(number: invoice_no)
+    @registrar = invoice.buyer
 
     unless invoice
       errors.add(:base, I18n.t('invoice_was_not_found'))

app/models/payment_orders/bank_link.rb

@@ -51,11 +51,7 @@ def valid_response_from_intermediary?
     def complete_transaction
       return unless valid_successful_transaction?
 
-      transaction = BankTransaction.find_by(
-        description: invoice.order,
-        currency: invoice.currency,
-        iban: invoice.seller_iban
-      )
+      transaction = compose_or_find_transaction
 
       transaction.sum             = response['VK_AMOUNT']
       transaction.bank_reference  = response['VK_T_NO']
@@ -65,7 +61,12 @@ def complete_transaction
       transaction.paid_at         = Time.parse(response["VK_T_DATETIME"])
 
       transaction.save!
-      transaction.autobind_invoice
+      transaction.bind_invoice(invoice.number)
+      if transaction.errors.empty?
+        Rails.logger.info("Invoice ##{invoice.number} was marked as paid")
+      else
+        Rails.logger.error("Failed to bind invoice ##{invoice.number}")
+      end
     end
 
     def settled_payment?

app/models/payment_orders/base.rb

@@ -26,6 +26,32 @@ def create_transaction
       transaction.save!
     end
 
+    def compose_or_find_transaction
+      transaction = BankTransaction.find_by(base_transaction_params)
+
+      # Transaction already autobinded (possibly) invalid invoice
+      if transaction.binded?
+        Rails.logger.info("Transaction #{transaction.id} is already binded")
+        Rails.logger.info('Creating new BankTransaction record.')
+
+        transaction = new_base_transaction
+      end
+
+      transaction
+    end
+
+    def new_base_transaction
+      BankTransaction.new(base_transaction_params)
+    end
+
+    def base_transaction_params
+      {
+        description: invoice.order,
+        currency: invoice.currency,
+        iban: invoice.seller_iban,
+      }
+    end
+
     def form_url
       ENV["payments_#{type}_url"]
     end

app/models/payment_orders/every_pay.rb

@@ -20,6 +20,7 @@ def form_fields
 
     def valid_response_from_intermediary?
       return false unless response
+
       valid_hmac? && valid_amount? && valid_account?
     end
 
@@ -30,18 +31,19 @@ def settled_payment?
     def complete_transaction
       return unless valid_response_from_intermediary? && settled_payment?
 
-      transaction = BankTransaction.find_by(
-        description: invoice.order,
-        currency:    invoice.currency,
-        iban:        invoice.seller_iban
-      )
+      transaction = compose_or_find_transaction
 
       transaction.sum = response[:amount]
       transaction.paid_at = Date.strptime(response[:timestamp], '%s')
       transaction.buyer_name = response[:cc_holder_name]
 
       transaction.save!
-      transaction.autobind_invoice
+      transaction.bind_invoice(invoice.number)
+      if transaction.errors.empty?
+        Rails.logger.info("Invoice ##{invoice.number} marked as paid")
+      else
+        Rails.logger.error("Failed to bind invoice ##{invoice.number}")
+      end
     end
 
     private

test/models/payment_orders/bank_link_test.rb

@@ -114,7 +114,9 @@ def test_complete_transaction_calls_methods_on_transaction
     mock_transaction.expect(:paid_at= , Date.parse('2018-04-01 00:30:00 +0300'), [Time.parse('2018-04-01T00:30:00+0300')])
     mock_transaction.expect(:buyer_name=, 'John Doe', ['John Doe'])
     mock_transaction.expect(:save!, true)
-    mock_transaction.expect(:autobind_invoice, AccountActivity.new)
+    mock_transaction.expect(:binded?, false)
+    mock_transaction.expect(:bind_invoice, AccountActivity.new, [1])
+    mock_transaction.expect(:errors, [])
 
     BankTransaction.stub(:find_by, mock_transaction) do
       @completed_bank_link.complete_transaction

test/models/payment_orders/every_pay_test.rb

@@ -72,7 +72,9 @@ def test_complete_transaction_calls_methods_on_transaction
     mock_transaction.expect(:paid_at= , Date.strptime('1524136727', '%s'), [Date.strptime('1524136727', '%s')])
     mock_transaction.expect(:buyer_name=, 'John Doe', ['John Doe'])
     mock_transaction.expect(:save!, true)
-    mock_transaction.expect(:autobind_invoice, AccountActivity.new)
+    mock_transaction.expect(:binded?, false)
+    mock_transaction.expect(:bind_invoice, AccountActivity.new, [1])
+    mock_transaction.expect(:errors, [])
 
     BankTransaction.stub(:find_by, mock_transaction) do
       @every_pay.complete_transaction