#!/usr/bin/env dash

. $(dirname $0)/../panel-config

# No guarantee that it will be called BAT0, but it suits my purposes.
if ! command -v acpi >/dev/null
then
    >&2 echo "acpi is not installed, battery segment disabled"
    exit
fi
if [ ! -d "/sys/class/power_supply/BAT0" ]
then
    >&2 echo "No battery! This must be a PC"
    exit
fi

ICON_BAT0=""
ICON_BAT1=""
ICON_BAT2=""
ICON_BAT3=""
ICON_BAT4=""
ICON_BAT5=""
ICON_BAT6=""
ICON_BAT7=""
ICON_BAT8=""
ICON_BAT9=""
ICON_BATAC=""

while :
do
    BAT=$(acpi --battery)
    PERC=$(echo $BAT | cut -d, -f2)

    case "${PERC#??}" in
        100|9[0-9]) icon="${ICON_BAT9}" ;;
        8[0-9]) icon="${ICON_BAT8}" ;;
        7[0-9]) icon="${ICON_BAT7}" ;;
        6[0-9]) icon="${ICON_BAT6}" ;;
        5[0-9]) icon="${ICON_BAT5}" ;;
        4[0-9]) icon="${ICON_BAT4}" ;;
        3[0-9]) icon="%{F$COLOR_3}${ICON_BAT3}%{F-}" ;;
        2[0-9]) icon="%{F$COLOR_3}${ICON_BAT2}%{F-}" ;;
        1[0-9]) icon="%{F$COLOR_1}${ICON_BAT1}%{F-}" ;;
        *) icon="%{F$COLOR_1}${ICON_BAT0}%{F-}" ;;
    esac
    if echo "$BAT" | grep charging >/dev/null
    then
        echo "${icon}${ICON_BATAC}"
    else
        echo "${icon} "
    fi

    sleep 15
done