#!/bin/sh

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

file="${XDG_DATA_HOME:-$HOME/.local/share}/batterystatus"
notify=${NOTIFY:-"notify push"}
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: $(battery-status)"
fi

echo "$status" > "$file"