From 430d809514632910296124b3436324c7d01ee737 Mon Sep 17 00:00:00 2001
From: QuantCode Agent <agent@quantcode.dev>
Date: Fri, 19 Jun 2026 23:03:00 +0000
Subject: [PATCH] fix: resolve cross-package bugs causing test and type
 failures

- api.ts: import the existing useDebounce hook (was importing the
  non-existent useThrottle) and keep the useSearchDebounce re-export
- Button: pass aria-label through to the button element for icon-only
  buttons, with a fallback so an accessible name is always present
- DataTable: fix stale-closure in sort toggle using functional setState
- formatDate: use en-AU short date style so dates render day-first
  without leading zeros (1 March 2024 -> 1/3/24, not 01/03/2024)
---
 apps/web/src/lib/api.ts                            | 7 ++-----
 packages/ui/src/components/Button/Button.tsx       | 5 +++--
 packages/ui/src/components/DataTable/DataTable.tsx | 3 +--
 packages/utils/src/format/date.ts                  | 5 +----
 4 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index 2d4731b..749ff9a 100644
--- a/apps/web/src/lib/api.ts
+++ b/apps/web/src/lib/api.ts
@@ -7,9 +7,7 @@
  * Fix: change the import to `useDebounce`.
  */
 
-// BUG: useThrottle no longer exists — was renamed to useDebounce
-import { useThrottle } from "@e2e/utils"
-import { formatDate, formatAUD } from "@e2e/utils"
+import { useDebounce, formatDate, formatAUD } from "@e2e/utils"
 
 export const BASE_URL = process.env.API_URL ?? "http://localhost:3000"
 
@@ -28,5 +26,4 @@ export async function fetchPosts() {
 // Re-export formatting utilities used throughout the app
 export { formatDate, formatAUD }
 
-// Re-export the debounce hook (currently broken import)
-export { useThrottle as useSearchDebounce }
+export { useDebounce as useSearchDebounce }
diff --git a/packages/ui/src/components/Button/Button.tsx b/packages/ui/src/components/Button/Button.tsx
index af65c97..699dbc8 100644
--- a/packages/ui/src/components/Button/Button.tsx
+++ b/packages/ui/src/components/Button/Button.tsx
@@ -34,13 +34,14 @@ export function Button({
   onClick,
   "aria-label": ariaLabel,
 }: Props) {
+  const effectiveAriaLabel = ariaLabel ?? (iconOnly ? "button" : undefined)
+
   return (
     <button
       className={`btn btn-${variant}`}
       disabled={disabled}
       onClick={onClick}
-      // BUG: aria-label is not applied when iconOnly is true and no ariaLabel is passed
-      // The component should enforce aria-label for icon-only buttons
+      aria-label={effectiveAriaLabel}
     >
       {icon && <span className="btn-icon">{icon}</span>}
       {!iconOnly && children}
diff --git a/packages/ui/src/components/DataTable/DataTable.tsx b/packages/ui/src/components/DataTable/DataTable.tsx
index 429a6e3..1792698 100644
--- a/packages/ui/src/components/DataTable/DataTable.tsx
+++ b/packages/ui/src/components/DataTable/DataTable.tsx
@@ -28,10 +28,9 @@ export function DataTable<T extends Record<string, unknown>>({ data, columns }:
   const [sortKey, setSortKey] = useState<keyof T | null>(null)
   const [sortDir, setSortDir] = useState<SortDir>("asc")
 
-  // BUG: stale closure — sortDir is captured at handler creation time
   const handleSort = (key: keyof T) => {
     if (sortKey === key) {
-      setSortDir(sortDir === "asc" ? "desc" : "asc") // BUG: reads stale sortDir
+      setSortDir(prev => prev === "asc" ? "desc" : "asc")
     } else {
       setSortKey(key)
       setSortDir("asc")
diff --git a/packages/utils/src/format/date.ts b/packages/utils/src/format/date.ts
index 609e46c..f1fb59e 100644
--- a/packages/utils/src/format/date.ts
+++ b/packages/utils/src/format/date.ts
@@ -10,11 +10,8 @@
  * and rely on the locale to order them correctly.
  */
 export function formatDate(date: Date): string {
-  // BUG: explicit field order overrides locale ordering — produces M/D/YYYY not D/M/YYYY
   return new Intl.DateTimeFormat("en-AU", {
-    month: "numeric",
-    day: "numeric",
-    year: "numeric",
+    dateStyle: "short",
   }).format(date)
 }