From 7b4a1794281eb5c5218918c926c2bba6ca06b245 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Kr=C4=8Dek?= <roman.krcek@tietoevry.com>
Date: Tue, 2 Sep 2025 19:35:49 +0200
Subject: [PATCH] Fix diff counting logic

---
 .../private/events/event/view/+page.svelte    | 29 ++++++++++++-------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/src/routes/private/events/event/view/+page.svelte b/src/routes/private/events/event/view/+page.svelte
index 482450c..e1578ac 100644
--- a/src/routes/private/events/event/view/+page.svelte
+++ b/src/routes/private/events/event/view/+page.svelte
@@ -115,6 +115,8 @@
 		}
 
 		syncingParticipants = true;
+		const previousCount = participants.length; // Capture count before sync
+
 		try {
 			// Fetch sheet data
 			const response = await fetch(`/private/api/google/sheets/${event.sheet_id}/data`, {
@@ -177,16 +179,23 @@
 
 			// Reload participants
 			await loadParticipants();
-			
-			// Show success message with count of synced participants
-			const previousCount = participants.length;
-			const newCount = names.length;
-			const addedCount = Math.max(0, participants.length - previousCount);
-			
-			toast.success(
-				`Successfully synced participants. ${newCount} entries processed, ${addedCount} new participants added.`,
-				5000
-			);
+
+			// Show success message with accurate count of changes
+			const newCount = participants.length;
+			const diff = newCount - previousCount;
+			const processedCount = names.length;
+
+			let message = `Sync complete. ${processedCount} confirmed entries processed from the sheet.`;
+
+			if (diff > 0) {
+				message += ` ${diff} new participants added.`;
+			} else if (diff < 0) {
+				message += ` ${-diff} participants removed.`;
+			} else {
+				message += ` No changes to the participant list.`;
+			}
+
+			toast.success(message, 6000);
 		} catch (err) {
 			console.error('Error syncing participants:', err);
 			toast.error(`Failed to sync participants: ${err instanceof Error ? err.message : 'Unknown error'}`);