Fix diff counting logic

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'}`);