From 8b0b6d5fca3853787e61c5e8e72fc775756e18f7 Mon Sep 17 00:00:00 2001
From: Bart de Water <bart.dewater@shopify.com>
Date: Thu, 6 Apr 2017 12:04:29 -0400
Subject: [PATCH] Add 2Checkout language support

---
 lib/offsite_payments/helper.rb                                | 4 ++++
 lib/offsite_payments/integrations/two_checkout.rb             | 4 ++++
 .../integrations/two_checkout/two_checkout_helper_test.rb     | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/lib/offsite_payments/helper.rb b/lib/offsite_payments/helper.rb
index fe99e189a..62207366c 100644
--- a/lib/offsite_payments/helper.rb
+++ b/lib/offsite_payments/helper.rb
@@ -97,6 +97,10 @@ def lookup_country_code(name_or_code, format = country_format)
       name_or_code
     end
 
+    def language_from_locale(locale)
+      locale[0..1].downcase
+    end
+
     def method_missing(method_id, *args)
       method_id = method_id.to_s.gsub(/=$/, '').to_sym
       # Return and do nothing if the mapping was not found. This allows
diff --git a/lib/offsite_payments/integrations/two_checkout.rb b/lib/offsite_payments/integrations/two_checkout.rb
index 9fdba9822..c18be7a54 100644
--- a/lib/offsite_payments/integrations/two_checkout.rb
+++ b/lib/offsite_payments/integrations/two_checkout.rb
@@ -114,6 +114,10 @@ def third_party_cart(params = {})
             add_field("c_#{key}_#{line_item_id}", value)
           end
         end
+
+        def locale(locale)
+          add_field 'lang', language_from_locale(locale)
+        end
       end
 
       class Notification < OffsitePayments::Notification
diff --git a/test/unit/integrations/two_checkout/two_checkout_helper_test.rb b/test/unit/integrations/two_checkout/two_checkout_helper_test.rb
index ac4c49ecc..06f8e8248 100644
--- a/test/unit/integrations/two_checkout/two_checkout_helper_test.rb
+++ b/test/unit/integrations/two_checkout/two_checkout_helper_test.rb
@@ -23,12 +23,14 @@ def test_extra_helper_fields
     @helper.return_url 'https://return.url/'
     @helper.cart_type 'shopify'
     @helper.purchase_step 'payment-method'
+    @helper.locale 'en-US'
 
     assert_field 'currency_code', 'ZAR'
     assert_field 'cart_order_id', '123'
     assert_field 'x_receipt_link_url', 'https://return.url/'
     assert_field '2co_cart_type', 'shopify'
     assert_field 'purchase_step', 'payment-method'
+    assert_field 'lang', 'en'
   end
 
   def test_customer_fields