From 28710d046237fe4f4280b46c1fc76ce6781059f6 Mon Sep 17 00:00:00 2001
From: Ralph Slooten <axllent@gmail.com>
Date: Sun, 10 Mar 2024 18:41:27 +1300
Subject: [PATCH] Fix: Prevent crash when calculating deleted space percentage
 (divide by zero)

---
 internal/storage/cron.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/internal/storage/cron.go b/internal/storage/cron.go
index 5a7bc60..0a39a32 100644
--- a/internal/storage/cron.go
+++ b/internal/storage/cron.go
@@ -27,7 +27,12 @@ func dbCron() {
 
 			if deletedSize > 0 {
 				total := totalMessagesSize()
-				deletedPercent := deletedSize * 100 / total
+				var deletedPercent int64
+				if total == 0 {
+					deletedPercent = 100
+				} else {
+					deletedPercent = deletedSize * 100 / total
+				}
 				// only vacuum the DB if at least 1% of mail storage size has been deleted
 				if deletedPercent >= 1 {
 					logger.Log().Debugf("[db] deleted messages is %d%% of total size, reclaim space", deletedPercent)