From 4906b13a3806e6a6e64f277ec37a62f86c1c0b57 Mon Sep 17 00:00:00 2001
From: mwiegand <mwiegand@seibert-media.net>
Date: Sat, 12 Feb 2022 21:16:08 +0100
Subject: [PATCH] use uptime since last wake instead of boot

---
 bundles/wol-sleeper/files/suspend_if_idle | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/bundles/wol-sleeper/files/suspend_if_idle b/bundles/wol-sleeper/files/suspend_if_idle
index 1519321..6e452c4 100644
--- a/bundles/wol-sleeper/files/suspend_if_idle
+++ b/bundles/wol-sleeper/files/suspend_if_idle
@@ -1,10 +1,12 @@
 #!/bin/bash
 
-UPTIME=$(cat /proc/uptime | cut -d. -f1)
+WOKE=$(expr $(journalctl -t systemd-sleep -b 0 -o json MESSAGE="System resumed." -n1 | jq -r .__REALTIME_TIMESTAMP) / 1000000)
+NOW=$(date +%s)
+UPTIME=$(expr $NOW - $WOKE)
 MIN_UPTIME=$(expr 60 \* 20)
 if [[ "$UPTIME" -lt "$MIN_UPTIME" ]]
 then
-  echo "ABORT: uptime ($UPTIME) lower than min ($MIN_UPTIME)"
+  echo "ABORT: uptime ($UPTIME s) lower than minimum ($MIN_UPTIME s)"
   exit 0
 fi