#!/bin/sh

Green='\033[0;32m'
Color_off='\033[0m'
Red='\033[0;31m'
Yellow='\033[1;33m'

batteries=$(ls /sys/class/power_supply/ | grep BAT)

case "$1" in
    "-c")
        if [[ "$batteries" == "" ]]; then
            printf "$Yellow**$Red error:$Color_off no battery found\n"
            exit 1;
        fi
        for i in $batteries; do
            batfull=$(cat /sys/class/power_supply/$i/charge_full)
            batnow=$(cat /sys/class/power_supply/$i/charge_now)
            batperc=$((($batnow/($batfull/100))))

            if [[ "$batperc" -le "20" ]]; then
                printf "$Yellow**$Color_off $i: $Red$batperc$Color_off\n"
                exit 0
            fi

            if [[ "$batperc" -le "70" ]]; then
                printf "$Yellow**$Color_off $i: $Yellow$batperc$Color_off\n"
                exit 0
            fi

            printf "$Yellow**$Color_off $i: $Green$batperc$Color_off\n"
        done
        ;;
    "-j")
        if [[ "$batteries" == "" ]]; then
            echo no
            exit 1;
        fi
        for i in $batteries; do
            batfull=$(cat /sys/class/power_supply/$i/charge_full)
            batnow=$(cat /sys/class/power_supply/$i/charge_now)
            batperc=$((($batnow/($batfull/100))))

            printf "$batperc \n"
        done
        ;;
esac