From 8e929bd44420ed9a3bc0b6a030cebbdfcafebf4d Mon Sep 17 00:00:00 2001
From: Timmy Keller <tjk@tjkeller.xyz>
Date: Sat, 10 Aug 2024 23:22:29 -0500
Subject: initial commit

---
 shlowbat | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 shlowbat

(limited to 'shlowbat')

diff --git a/shlowbat b/shlowbat
new file mode 100755
index 0000000..a02ce56
--- /dev/null
+++ b/shlowbat
@@ -0,0 +1,26 @@
+#!/bin/sh
+psupath=/sys/class/power_supply
+warning_level=0  # 0 = not warned, 1 = warned, 2 = warned critical
+
+sum_props() {
+	for prop in $(cat $psupath/*/$1); do sum=$(( $sum + $prop )); done
+	echo $sum
+}
+is_discharging() { cat $psupath/*/status | grep "Discharging" > /dev/null ; }
+
+while true; do
+	capacity=$(( $(sum_props energy_now) * 100 / $(sum_props energy_full) ))
+
+	if is_discharging; then
+		if   [ $capacity -le  5 ] && [ $warning_level -lt 2 ]; then
+			notify_send "Critical Low Battery Warning" "${capacity}% remains"
+		elif [ $capacity -le 20 ] && [ $warning_level -lt 1 ]; then
+			notify_send "Low Battery Warning" "${capacity}% remains"
+		fi
+	else
+		warning_level=0
+	fi
+
+	printf "\r%d%%" $capacity
+	sleep 3
+done
-- 
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