Merge pull request #2531 from internetee/68-creating-syncronization-of-invoice-changes

creating sync with billing

app/models/concerns/invoice/cancellable.rb

@@ -31,4 +31,22 @@ module Invoice::Cancellable
   def not_cancelled?
     !cancelled?
   end
+
+  def cancel_manualy
+    account_activity = AccountActivity.find_by(invoice_id: id)
+    account_activity_dup = account_activity.dup
+    account_activity_dup.sum = -account_activity.sum.to_f
+    account_activity_dup.save
+    account_activity.update(invoice_id: nil)
+    account_activity_dup.update(invoice_id: nil)
+    mark_cancelled_payment_order
+    account_activity.save && account_activity_dup.save
+  end
+
+  private
+
+  def mark_cancelled_payment_order
+    payment_order = payment_orders.last
+    payment_order.update(notes: 'Cancelled')
+  end
 end

app/models/concerns/invoice/payable.rb

@@ -23,4 +23,34 @@ module Invoice::Payable
   def unpaid?
     !paid?
   end
+
+  def process_payment(**options)
+    payment = options[:payment_type].constantize.new(invoice: self)
+    payment.response = options[:everypay_response]
+    payment.status = options[:payment_status]
+    payment.save!
+
+    bank_transaction = payment.base_transaction(sum: options[:sum],
+                                                paid_at: options[:transaction_time] || Time.zone.now,
+                                                buyer_name: buyer_name)
+    bank_transaction.bind_invoice(number)
+  end
+
+  def autobind_manually
+    return if paid?
+
+    bank_statement = BankStatement.new(
+      bank_code: Setting.registry_bank_code,
+      iban: Setting.registry_iban
+    )
+    bank_statement.bank_transactions.build(
+      description: description,
+      sum: total,
+      reference_no: reference_no,
+      paid_at: Time.zone.now.to_date,
+      currency: 'EUR'
+    )
+    bank_statement.save!
+    bank_statement.bind_invoices(manual: true)
+  end
 end

app/models/invoice_state_machine.rb

@@ -0,0 +1,53 @@
+class InvoiceStateMachine
+  attr_reader :invoice, :status
+
+  def initialize(invoice:, status:)
+    @invoice = invoice
+    @status = status.to_sym
+  end
+
+  def call
+    case status
+    when :paid
+      mark_as_paid
+    when :cancelled
+      mark_as_cancel
+    when :unpaid
+      mark_as_unpaid
+    else
+      push_error
+    end
+  end
+
+  private
+
+  def mark_as_paid
+    return push_error unless invoice.payable?
+    return true if invoice.paid?
+
+    invoice.autobind_manually
+    invoice
+  end
+
+  def mark_as_cancel
+    return push_error unless invoice.cancellable?
+    return true if invoice.cancelled?
+
+    invoice.cancel
+    invoice
+  end
+
+  def mark_as_unpaid
+    return push_error if invoice.paid? && invoice.payment_orders&.last&.payment_reference? || invoice.cancelled?
+    return true unless invoice.paid?
+
+    invoice.cancel_manualy
+    invoice
+  end
+
+  def push_error
+    invoice.errors.add(:base, "Inavalid state #{status}")
+
+    false
+  end
+end

app/models/payment_order.rb

@@ -64,6 +64,10 @@ class PaymentOrder < ApplicationRecord
     false
   end
 
+  def payment_reference?
+    response && response['payment_reference'].present?
+  end
+
   def base_transaction(sum:, paid_at:, buyer_name:)
     BankTransaction.new(
       description: invoice.order,