Refactor API class instantiation

This is used by any class that interacts with the TaxJar API and is
meant to be able to be consumed by applications for custom needs, so
let's just make it exposed at the top level.

4 files changed, 6 insertions, 8 deletions

diff --git a/lib/super_good/solidus_taxjar.rb b/lib/super_good/solidus_taxjar.rb
index bdd2dcd..f45db80 100644
--- a/lib/super_good/solidus_taxjar.rb
+++ b/lib/super_good/solidus_taxjar.rb
@@ -25,6 +25,10 @@ module SuperGood
       attr_accessor :taxable_address_check
       attr_accessor :taxable_order_check
       attr_accessor :test_mode
+
+      def api
+        ::SuperGood::SolidusTaxJar::API.new
+      end
     end
 
     self.cache_duration = 3.hours
diff --git a/lib/super_good/solidus_taxjar/calculator_helper.rb b/lib/super_good/solidus_taxjar/calculator_helper.rb
index f8690b5..c4803a4 100644
--- a/lib/super_good/solidus_taxjar/calculator_helper.rb
+++ b/lib/super_good/solidus_taxjar/calculator_helper.rb
@@ -3,12 +3,6 @@ module SuperGood
     module CalculatorHelper
       extend ActiveSupport::Concern
 
-      class_methods do
-        def default_api
-          ::SuperGood::SolidusTaxJar::API.new
-        end
-      end
-
       def incomplete_address?(address)
         return true if address.is_a?(Spree::Tax::TaxLocation)
 
diff --git a/lib/super_good/solidus_taxjar/tax_calculator.rb b/lib/super_good/solidus_taxjar/tax_calculator.rb
index 520fffe..88eee2a 100644
--- a/lib/super_good/solidus_taxjar/tax_calculator.rb
+++ b/lib/super_good/solidus_taxjar/tax_calculator.rb
@@ -3,7 +3,7 @@ module SuperGood
     class TaxCalculator
       include CalculatorHelper
 
-      def initialize(order, api: self.class.default_api)
+      def initialize(order, api: SuperGood::SolidusTaxJar.api)
         @order = order
         @api = api
       end
diff --git a/lib/super_good/solidus_taxjar/tax_rate_calculator.rb b/lib/super_good/solidus_taxjar/tax_rate_calculator.rb
index 8f513a5..f9c996c 100644
--- a/lib/super_good/solidus_taxjar/tax_rate_calculator.rb
+++ b/lib/super_good/solidus_taxjar/tax_rate_calculator.rb
@@ -2,7 +2,7 @@ module SuperGood
   module SolidusTaxJar
     class TaxRateCalculator
       include CalculatorHelper
-      def initialize(address, api: self.class.default_api)
+      def initialize(address, api: SuperGood::SolidusTaxJar.api)
         @address = address
         @api = api
       end