From f1a9d129e6c5ada230002cca752222c05d069ce0 Mon Sep 17 00:00:00 2001
From: Stephen Adamson <popertots@gmail.com>
Date: Sun, 10 May 2026 11:57:05 +0100
Subject: [PATCH] fix: unique keys for time slot each block to prevent
 duplicate key errors

- Use type+startTime+endTime composite key instead of startTime alone
- Prevents collisions when available and unavailable slots share start times
---
 frontend/src/lib/components/booking/TimeSlotPicker.svelte | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frontend/src/lib/components/booking/TimeSlotPicker.svelte b/frontend/src/lib/components/booking/TimeSlotPicker.svelte
index 8681751..b464d60 100644
--- a/frontend/src/lib/components/booking/TimeSlotPicker.svelte
+++ b/frontend/src/lib/components/booking/TimeSlotPicker.svelte
@@ -52,7 +52,7 @@
 		{/if}
 
 		<div class="grid gap-2">
-			{#each groupedTimeSlots as slot (slot.startTime)}
+			{#each groupedTimeSlots as slot (slot.type + '-' + slot.startTime + '-' + slot.endTime)}
 				{#if slot.type === 'available'}
 					{@const protection = lunchProtectionStatus.get(slot.startTime)}
 					{#if protection?.isBlocked}