[CI Minutes] Link to new CI Minutes purchase route

ee/app/helpers/ee/namespaces_helper.rb

@@ -38,5 +38,11 @@ module EE
 
       current_user.can?(:admin_namespace, namespace.root_ancestor)
     end
+
+    def link_to_buy_additional_minutes_path(namespace)
+      return EE::SUBSCRIPTIONS_MORE_MINUTES_URL if ::Feature.disabled?(:new_route_ci_minutes_purchase, default_enabled: :yaml)
+
+      buy_minutes_subscriptions_path(selected_group: namespace.id)
+    end
   end
 end

ee/app/views/namespaces/pipelines_quota/_list.haml

@@ -7,7 +7,7 @@
     .col-sm-6.offset-sm-6
       - if ::Gitlab.com?
         = link_to s_('UsageQuota|Buy additional minutes'),
-        EE::SUBSCRIPTIONS_MORE_MINUTES_URL,
+        link_to_buy_additional_minutes_path(namespace),
         target: '_blank',
         class: 'gl-button btn btn-confirm float-right',
         data: { track_event: 'click_buy_ci_minutes', track_label: namespace.actual_plan_name, track_property: 'pipeline_quota_page' }

ee/spec/features/groups/usage_quotas_spec.rb

@@ -144,8 +144,6 @@ RSpec.describe 'Groups > Usage Quotas' do
     it 'has correct tracking setup and shows correct group quota and projects info' do
       visit_pipeline_quota_page
 
-      expect(page).to have_link('Buy additional minutes', href: EE::SUBSCRIPTIONS_MORE_MINUTES_URL)
-
       page.within('.pipeline-quota') do
         expect(page).to have_content("1000 / 500 minutes")
         expect(page).to have_content("200% used")
@@ -188,6 +186,28 @@ RSpec.describe 'Groups > Usage Quotas' do
     end
   end
 
+  describe 'new_route_ci_minutes_purchase feature flag' do
+    context 'when is disabled' do
+      before do
+        stub_feature_flags(new_route_ci_minutes_purchase: false)
+      end
+
+      it 'points to Customers Portal purchase flow' do
+        visit_pipeline_quota_page
+
+        expect(page).to have_link('Buy additional minutes', href: EE::SUBSCRIPTIONS_MORE_MINUTES_URL)
+      end
+    end
+
+    context 'when is enabled' do
+      it 'points to GitLab purchase flow' do
+        visit_pipeline_quota_page
+
+        expect(page).to have_link('Buy additional minutes', href: buy_minutes_subscriptions_path(selected_group: group.id))
+      end
+    end
+  end
+
   def visit_pipeline_quota_page
     visit group_usage_quotas_path(group)
   end

ee/spec/helpers/ee/namespaces_helper_spec.rb

@@ -172,4 +172,24 @@ RSpec.describe EE::NamespacesHelper do
       end
     end
   end
+
+  describe '#link_to_buy_additional_minutes_path' do
+    subject { helper.link_to_buy_additional_minutes_path(namespace) }
+
+    let_it_be(:namespace) { create(:namespace_with_plan) }
+
+    context 'new_route_ci_minutes_purchase' do
+      context 'when is disabled' do
+        before do
+          stub_feature_flags(new_route_ci_minutes_purchase: false)
+        end
+
+        it { is_expected.to be EE::SUBSCRIPTIONS_MORE_MINUTES_URL }
+      end
+
+      context 'when is enabled' do
+        it { is_expected.to eq buy_minutes_subscriptions_path(selected_group: namespace.id) }
+      end
+    end
+  end
 end