Multi-currency support (#425)

* Initial foundational pass at multi-currency

* Default format currency

* More work on currency and exchanging

* Re-build currencies on change

* Currency import/setup

* Background job overhaul + cheaper OXR plan support

* Lint fixes

* Test fixes

* Multi-currency setup instructions

* Allow decimals in the balance field

* Spacing fix for form

---------

Signed-off-by: Josh Pigford <josh@joshpigford.com>

test/fixtures/accounts.yml

@@ -1,14 +1,14 @@
 dylan_checking:
   family: dylan_family
   name: Bob's Checking
-  balance_cents: 1200
+  original_balance: 1200
 
 dylan_roth:
   family: dylan_family
   name: Bob's Roth IRA
-  balance_cents: 1200
+  original_balance: 1200
 
 richards_savings:
   family: richards_family
   name: Keef's HYSA
-  balance_cents: 1500
+  original_balance: 1500

test/fixtures/currencies.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# one:
+#   name: MyString
+#   iso_code: MyString
+
+# two:
+#   name: MyString
+#   iso_code: MyString

test/fixtures/exchange_rates.yml

@@ -0,0 +1,13 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  base_currency: one
+  converted_currency: one
+  rate: 9.99
+  date: 2024-02-09
+
+two:
+  base_currency: two
+  converted_currency: two
+  rate: 9.99
+  date: 2024-02-09

test/jobs/convert_currency_job_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class ConvertCurrencyJobTest < ActiveJob::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/jobs/daily_exchange_rate_job_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class DailyExchangeRateJobTest < ActiveJob::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/models/account_test.rb

@@ -3,7 +3,7 @@ require "test_helper"
 class AccountTest < ActiveSupport::TestCase
   def setup
     depository = Account::Depository.create!
-    @account = Account.create!(family: families(:dylan_family), name: "Explicit Checking", balance_cents: 1200, accountable: depository)
+    @account = Account.create!(family: families(:dylan_family), name: "Explicit Checking", original_balance: 1200, accountable: depository)
   end
 
   test "new account should be valid" do
@@ -11,21 +11,4 @@ class AccountTest < ActiveSupport::TestCase
     assert_not_nil @account.accountable_id
     assert_not_nil @account.accountable
   end
-
-  test "balance returns Money object" do
-    @account.balance = 10
-    assert_instance_of Money, @account.balance
-    assert_equal :usd, @account.balance.currency.id
-  end
-
-  test "correctly assigns Money objects to the attribute" do
-    @account.balance = Money.new(2500, "USD")
-    assert_equal 2500, @account.balance_cents
-  end
-
-  test "balance_cents can be updated" do
-    new_balance = Money.new(10000, "USD")
-    @account.balance = new_balance
-    assert_equal new_balance, @account.balance
-  end
 end

test/models/currency_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class CurrencyTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/models/exchange_rate_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class ExchangeRateTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end