#!/bin/sh

# Check battery state, save result to a file. Pop up notification if changed.
# Requires: battery-status, notify-battery

file="$XDG_DATA_HOME/batterystatus"
low=20
crit=15

new=$(battery-status)
level=$(echo "$new" | sed 's/%.*//')
status=$(echo "$new" | awk '{print $2}')

[ "$status" = "Discharging" ] && [ $level -le $low ]  && status="Low"
[ "$status" = "Discharging" ] && [ $level -le $crit ] && status="Critical"

if [ "$status" != "$(cat $file)" ] || [ "$status" = "Critical" ]; then
	notify-battery
fi

echo "$status" > "$file"