fix(uplifts): show an unavailable count pill while a queue is loading or failed

src/app/(protected)/uplifts/index.tsx

@@ -18,6 +18,7 @@ import { useAuthContext } from "@/providers/auth-context";
 import { useUpliftApprovalController } from "@/domain/uplifts/use-cases/use-uplift-approval-controller";
 import { useUpliftsQueue } from "@/domain/uplifts/use-cases/use-uplifts-queue";
 import { Text } from "@/components/ui/text";
+import type { UpliftsQueueResult } from "@/domain/uplifts/types/uplift";
 
 const PAGE_SIZE = 25;
 
@@ -47,13 +48,33 @@ const TAB_LABELS: Record<UpliftApprovalTab, string> = {
   rejected: "Rejected",
 };
 
+// A tab's total is only known once its queue has loaded without error; until then the
+// pill must not claim a count (a loading or failed queue is not an empty one).
+function knownTotal(query: {
+  data?: UpliftsQueueResult | undefined;
+  error: unknown;
+}): number | null {
+  if (query.error || !query.data) return null;
+  return query.data.totalCount;
+}
+
+function TabCountPill({ tab, count }: { tab: UpliftApprovalTab; count: number | null }) {
+  return (
+    <Chip
+      size="small"
+      label={count ?? "—"}
+      aria-label={count == null ? `${tab} uplift count unavailable` : `${count} ${tab} uplifts`}
+    />
+  );
+}
+
 function UpliftApprovalsTabs({
   tab,
   counts,
   onChange,
 }: {
   tab: UpliftApprovalTab;
-  counts: Record<UpliftApprovalTab, number>;
+  counts: Record<UpliftApprovalTab, number | null>;
   onChange: (_event: unknown, value: string) => void;
 }) {
   return (
@@ -65,11 +86,7 @@ function UpliftApprovalsTabs({
           label={
             <Stack direction="row" spacing={1} sx={{ alignItems: "center" }}>
               <span>{TAB_LABELS[value]}</span>
-              <Chip
-                size="small"
-                label={counts[value]}
-                aria-label={`${counts[value]} ${value} uplifts`}
-              />
+              <TabCountPill tab={value} count={counts[value]} />
             </Stack>
           }
         />
@@ -152,9 +169,9 @@ export default function UpliftQueuePage() {
   const activeQuery = queries[tab];
   const rows = activeQuery.data?.items ?? [];
   const counts = {
-    pending: pendingQuery.data?.totalCount ?? 0,
-    approved: approvedQuery.data?.totalCount ?? 0,
-    rejected: rejectedQuery.data?.totalCount ?? 0,
+    pending: knownTotal(pendingQuery),
+    approved: knownTotal(approvedQuery),
+    rejected: knownTotal(rejectedQuery),
   };
   const pendingExposureTotal = pendingQuery.data?.pendingExposureTotal ?? null;
 

src/test/app/(protected)/uplifts/uplift-approvals-rejected-tab.test.tsx

@@ -9,7 +9,8 @@ import { formatDateTime } from "@/lib/time-utils";
 import { renderWithProviders } from "@/test/test-utils";
 
 const queueState = vi.hoisted(() => ({
-  byStatus: {} as Record<string, UpliftsQueueResult>,
+  byStatus: {} as Record<string, UpliftsQueueResult | undefined>,
+  errorByStatus: {} as Record<string, Error | undefined>,
   requestedStatuses: [] as Array<string | undefined>,
 }));
 
@@ -92,11 +93,13 @@ function page(items: UpliftQueueItem[], totalCount = items.length): UpliftsQueue
 vi.mock("@/domain/uplifts/use-cases/use-uplifts-queue", () => ({
   useUpliftsQueue: (params: UpliftsQueueParams) => {
     queueState.requestedStatuses.push(params.status);
+    const data = queueState.byStatus[params.status ?? ""];
+    const error = queueState.errorByStatus[params.status ?? ""] ?? null;
     return {
-      data: queueState.byStatus[params.status ?? ""] ?? null,
-      isLoading: false,
+      data,
+      isLoading: data === undefined && error === null,
       isFetching: false,
-      error: null,
+      error,
       refetch: vi.fn(),
     };
   },
@@ -127,6 +130,7 @@ async function openRejectedTab() {
 describe("Uplift Approvals rejected tab", () => {
   beforeEach(() => {
     queueState.requestedStatuses = [];
+    queueState.errorByStatus = {};
     queueState.byStatus = {
       Pending: page([pendingItem]),
       Approved: page([approvedItem]),
@@ -145,6 +149,21 @@ describe("Uplift Approvals rejected tab", () => {
     expect(queueState.requestedStatuses).toContain("Rejected");
   });
 
+  it("never claims a count for a queue that is still loading or failed to load", async () => {
+    queueState.byStatus.Rejected = undefined;
+    queueState.errorByStatus.Rejected = new Error("Forbidden");
+    queueState.byStatus.Approved = undefined;
+    const { default: UpliftQueuePage } = await import("@/app/(protected)/uplifts/index");
+    renderWithProviders(<UpliftQueuePage />);
+
+    const rejectedPill = screen.getByLabelText("rejected uplift count unavailable");
+    expect(rejectedPill).toHaveTextContent("—");
+    expect(screen.getByLabelText("approved uplift count unavailable")).toHaveTextContent("—");
+    expect(screen.queryByLabelText("0 rejected uplifts")).not.toBeInTheDocument();
+    expect(screen.queryByLabelText("0 approved uplifts")).not.toBeInTheDocument();
+    expect(screen.getByLabelText("1 pending uplifts")).toBeInTheDocument();
+  });
+
   it("lists only rejected uplifts, in the server's most-recently-rejected order", async () => {
     const table = await openRejectedTab();