Process payments: Create new invoice by transaction to allow direct top ups

app/models/bank_transaction.rb

@@ -31,12 +31,18 @@ class BankTransaction < ApplicationRecord
     @registrar ||= Invoice.find_by(reference_no: parsed_ref_number)&.buyer
   end
 
+  def autobindable?
+    return false if binded?
+    return false unless registrar
+    return false unless invoice
+    return false unless invoice.payable?
+
+    true
+  end
+
   # For successful binding, reference number, invoice id and sum must match with the invoice
   def autobind_invoice(manual: false)
-    return if binded?
-    return unless registrar
-    return unless invoice
-    return unless invoice.payable?
+    return unless autobindable?
 
     channel = if manual
                 'admin_payment'

app/models/invoice.rb

@@ -112,6 +112,15 @@ class Invoice < ApplicationRecord
     e_invoice_sent_at.present?
   end
 
+  def self.create_from_transaction!(transaction)
+    registrar_user = Registrar.find_by(reference_no: transasction.parsed_ref_number)
+    return unless registrar_user
+
+    registrar_user.issue_prepayment_invoice(amount: transaction.sum,
+                                            description: 'Direct top-up via bank transfer',
+                                            paid: true)
+  end
+
   private
 
   def apply_default_buyer_vat_no

app/models/registrar.rb

@@ -54,7 +54,7 @@ class Registrar < ApplicationRecord
     end
   end
 
-  def issue_prepayment_invoice(amount, description = nil)
+  def issue_prepayment_invoice(amount, description = nil, paid: false)
     vat_rate = ::Invoice::VatRateCalculator.new(registrar: self).calculate
 
     invoice = invoices.create!(
@@ -99,7 +99,7 @@ class Registrar < ApplicationRecord
         }
       ]
     )
-    SendEInvoiceJob.enqueue(invoice.id)
+    SendEInvoiceJob.enqueue(invoice.id) unless paid
 
     invoice
   end

lib/tasks/invoices/process_payments.rake

@@ -36,6 +36,8 @@ namespace :invoices do
                                      reference_no: incoming_transaction.payment_reference_number,
                                      description: incoming_transaction.payment_description }
           transaction = bank_statement.bank_transactions.create!(transaction_attributes)
+          Invoice.create_from_transaction!(transaction) unless transaction.autobindable?
+
           transaction.autobind_invoice
         end
       end