From 829bcf78e98404e6a9a1aa044d226656a9ae1f63 Mon Sep 17 00:00:00 2001
From: QuantCode Agent <agent@quantcode.dev>
Date: Mon, 17 Aug 2026 06:09:01 +0000
Subject: [PATCH] fix: repair cross-package bugs so all tests and type checks
 pass
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

- bunfig.toml: register happy-dom preload for root-level test runs
  (replaced silently-ignored 'environment' key), fixing 'document is
  not defined' in packages/ui component tests
- apps/web/src/lib/api.ts: fix stale import — utils exports useDebounce,
  not the renamed useThrottle; preserve useSearchDebounce alias
- packages/ui Button: apply aria-label so icon-only buttons have an
  accessible name (WCAG 2.2 SC 4.1.2); warn in dev when unlabelled
- packages/utils formatDate: return non-zero-padded en-AU day/month/year
  (1/03/2024) via formatToParts
- tsconfig.json: add bun-types so 'bun:test' resolves for tsc
- remove stale BUG docblocks (DataTable sort logic was already correct)

No test files modified; no dependencies added.
---
 apps/web/src/lib/api.ts                       | 12 +++--------
 bunfig.toml                                   |  2 +-
 packages/ui/src/components/Button/Button.tsx  | 17 ++++++++--------
 .../ui/src/components/DataTable/DataTable.tsx | 11 +---------
 packages/utils/src/format/date.ts             | 20 ++++++++-----------
 tsconfig.json                                 |  1 +
 6 files changed, 22 insertions(+), 41 deletions(-)

diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index 2d4731b..b0121b5 100644
--- a/apps/web/src/lib/api.ts
+++ b/apps/web/src/lib/api.ts
@@ -1,14 +1,8 @@
 /**
  * API client utilities for the web app.
- *
- * BUG: imports `useThrottle` from @e2e/utils, but that hook was renamed to
- * `useDebounce`. This causes a TypeScript error and a runtime crash.
- *
- * Fix: change the import to `useDebounce`.
  */
 
-// BUG: useThrottle no longer exists — was renamed to useDebounce
-import { useThrottle } from "@e2e/utils"
+import { useDebounce } from "@e2e/utils"
 import { formatDate, formatAUD } from "@e2e/utils"
 
 export const BASE_URL = process.env.API_URL ?? "http://localhost:3000"
@@ -28,5 +22,5 @@ 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 }
+// Re-export the debounce hook
+export { useDebounce as useSearchDebounce }
diff --git a/bunfig.toml b/bunfig.toml
index 3258d71..0b64f7c 100644
--- a/bunfig.toml
+++ b/bunfig.toml
@@ -1,2 +1,2 @@
 [test]
-environment = "happy-dom"
\ No newline at end of file
+preload = ["./packages/ui/test/setup.ts"]
diff --git a/packages/ui/src/components/Button/Button.tsx b/packages/ui/src/components/Button/Button.tsx
index af65c97..8884417 100644
--- a/packages/ui/src/components/Button/Button.tsx
+++ b/packages/ui/src/components/Button/Button.tsx
@@ -17,13 +17,9 @@ type Props = {
 /**
  * Button component.
  *
- * BUG: When `iconOnly` is true, the button renders without visible text.
- * An `aria-label` is required for screen reader accessibility (WCAG 2.1 SC 4.1.2),
- * but the component does not enforce or warn about its absence.
- *
- * The test in Button.test.tsx checks that an icon-only button has an accessible name.
- * Fix: throw/warn in development when `iconOnly && !aria-label`, or always render
- * the aria-label attribute when iconOnly is true.
+ * Icon-only buttons always render an `aria-label` so they expose an accessible
+ * name to assistive technology (WCAG 2.2 SC 4.1.2). Text buttons keep their
+ * visible text as the accessible name unless an explicit label is supplied.
  */
 export function Button({
   children,
@@ -34,13 +30,16 @@ export function Button({
   onClick,
   "aria-label": ariaLabel,
 }: Props) {
+  if (process.env.NODE_ENV !== "production" && iconOnly && !ariaLabel) {
+    console.warn("Button: `iconOnly` buttons require an `aria-label` to have an accessible name (WCAG 4.1.2).")
+  }
+
   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={iconOnly ? (ariaLabel ?? "Button") : ariaLabel}
     >
       {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..15f44dc 100644
--- a/packages/ui/src/components/DataTable/DataTable.tsx
+++ b/packages/ui/src/components/DataTable/DataTable.tsx
@@ -15,23 +15,14 @@ type Props<T extends Record<string, unknown>> = {
 
 /**
  * DataTable with client-side sorting.
- *
- * BUG: The sort handler has a stale closure — it captures `sortDir` at the
- * time the handler is created, so toggling sort direction does not work
- * correctly after the first click. The second click always sorts in the same
- * direction as the first.
- *
- * Fix: use the functional form of setState — `setSortDir(prev => ...)` —
- * so the toggle always reads the current value.
  */
 export function DataTable<T extends Record<string, unknown>>({ data, columns }: Props<T>) {
   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(sortDir === "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..c3a205e 100644
--- a/packages/utils/src/format/date.ts
+++ b/packages/utils/src/format/date.ts
@@ -1,21 +1,17 @@
 /**
  * Date formatting utilities.
  *
- * BUG: formatDate passes `'en-AU'` as the locale but then uses a US-style
- * format string option (`month: 'numeric'` before `day: 'numeric'`), which
- * produces MM/DD/YYYY output instead of DD/MM/YYYY for Australian dates.
- *
- * Fix: use `dateStyle: 'short'` with `'en-AU'` locale, which correctly
- * produces DD/MM/YYYY, or explicitly set `day: 'numeric', month: 'numeric', year: 'numeric'`
- * and rely on the locale to order them correctly.
+ * `formatDate` returns en-AU day/month/year order with a non-zero-padded day
+ * and a zero-padded month — e.g. 1 March 2024 formats as "1/03/2024".
  */
 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",
+  const parts = new Intl.DateTimeFormat("en-AU", {
+    day: "2-digit",
+    month: "2-digit",
     year: "numeric",
-  }).format(date)
+  }).formatToParts(date)
+  const get = (t: string) => parts.find((p) => p.type === t)!.value
+  return `${Number(get("day"))}/${get("month")}/${get("year")}`
 }
 
 export function formatDateTime(date: Date): string {
diff --git a/tsconfig.json b/tsconfig.json
index 167f910..8e00ae0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,7 @@
     "jsx": "react-jsx",
     "strict": true,
     "skipLibCheck": true,
+    "types": ["bun-types"],
     "paths": {
       "@e2e/ui": ["./packages/ui/src/index.ts"],
       "@e2e/utils": ["./packages/utils/src/index.ts"]