From 79e1afd8c866977f18e7e03a27228eb36fd9148c Mon Sep 17 00:00:00 2001
From: Agbasimere <agbasimerekingsley06@gmail.com>
Date: Thu, 23 Jul 2026 22:02:29 +0100
Subject: [PATCH] perf(calendar): memoize recurring-event expansion (#982)

---
 src/components/Calendar.tsx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/components/Calendar.tsx b/src/components/Calendar.tsx
index 2e02c03a..3dc53455 100644
--- a/src/components/Calendar.tsx
+++ b/src/components/Calendar.tsx
@@ -1,6 +1,6 @@
 'use client';
 
-import { useCallback } from 'react';
+import { useCallback, useMemo } from 'react';
 import { Calendar as BigCalendar, dateFnsLocalizer, SlotInfo, Views } from 'react-big-calendar';
 import { format, parse, startOfWeek, getDay, addWeeks, addDays } from 'date-fns';
 import { enUS } from 'date-fns/locale/en-US';
@@ -48,7 +48,7 @@ interface CalendarProps {
 }
 
 export default function Calendar({ events, onSelectSlot, onSelectEvent }: CalendarProps) {
-  const expanded = events.flatMap(expandRecurring);
+  const expanded = useMemo(() => events.flatMap(expandRecurring), [events]);
 
   const eventStyleGetter = useCallback(
     (event: CalendarEvent) => ({