Revert "Remove unused ExtraLocaleController extension"

This reverts commit 37c18ff324.

extensions/extra_locales_controller.rb

@@ -0,0 +1,16 @@
+module ExtraLocalesControllerCustomWizard
+  def show
+    if request.referer && URI(request.referer).path.include?('/w/')
+      bundle = params[:bundle]
+        
+      if params[:v]&.size == 32
+        hash = ::ExtraLocalesController.bundle_js_hash(bundle)
+        immutable_for(1.year) if hash == params[:v]
+      end
+      
+      render plain: ::ExtraLocalesController.bundle_js(bundle), content_type: "application/javascript"
+    else
+      super
+    end
+  end
+end

plugin.rb

@@ -77,6 +77,7 @@ after_initialize do
     ../serializers/custom_wizard/wizard_step_serializer.rb
     ../serializers/custom_wizard/wizard_serializer.rb
     ../serializers/custom_wizard/log_serializer.rb
+    ../extensions/extra_locales_controller.rb
     ../extensions/invites_controller.rb
     ../extensions/users_controller.rb
     ../extensions/wizard_field.rb
@@ -157,6 +158,7 @@ after_initialize do
     redirect_to_wizard_if_required if current_user
   end
   
+  ::ExtraLocalesController.prepend ExtraLocalesControllerCustomWizard
   ::InvitesController.prepend InvitesControllerCustomWizard
   ::UsersController.prepend CustomWizardUsersController
   ::Wizard::Field.prepend CustomWizardFieldExtension

spec/extensions/extra_locales_controller_spec.rb

@@ -0,0 +1,26 @@
+require 'rails_helper'
+
+describe ExtraLocalesControllerCustomWizard, type: :request do
+  before do
+    CustomWizard::Template.save(
+      JSON.parse(File.open(
+        "#{Rails.root}/plugins/discourse-custom-wizard/spec/fixtures/wizard.json"
+      ).read),
+    skip_jobs: true)
+  end
+  
+  before do
+    @controller = ExtraLocalesController.new
+  end
+  
+  it "returns locales when requested by wizard" do
+    @controller.request = ActionController::TestRequest.create(@controller.class)
+    @controller.request.env['HTTP_REFERER'] = "/w/super-mega-fun-wizard"
+
+    expect(
+      ExtraLocalesController.url("wizard")
+    ).to eq(
+      "#{Discourse.base_path}/extra-locales/wizard?v=#{ExtraLocalesController.bundle_js_hash("wizard")}"
+    )
+  end
+end