#!/bin/ksh

# this is free and unincumbered software released into the public domain 
# under the terms of the Unlicense <http://unlicense.org>

## battc -- a color-coded command-line battery monitor for Mac OS X (v. 0.1, July 2012)
# battc is a simple shell script for montitoring battery life on laptops running Mac OS X
# it is suitable for inclusion in a commandline prompt. battc displays whether a battery is 
# charging or discharging, the percent of charge the battery is currently holding, and the 
# time remaining until it is fully charged or fully discharged.

# /\ charching \/ discharging
# color code: dark green 100-76%; light green 75-51%; yellow: 50-26%; red: 25-6%; blinking red: 5-0%
# blinking not supported on iTerm2 (and probably not on iTerm).

# dependencies: pmset and ksh or bash

BATTSTAT=$(pmset -g batt | grep % | awk '/discharging/{if ($4 != "(no") {print "\/ " $2 " " $4} else {print "\/ " $2 " ?:??"}};\
!/discharging/{if ($4 != "(no") {print "/\\ " $2 " " $4} else {print "\/ " $2 " ?:??"}};')
BATTPER=${BATTSTAT:3}
BATTPER=${BATTPER%\%*}
if [[ $BATTPER -gt 75 ]] ; then
	echo $'\E[0;32m' ${BATTSTAT} $'\E[0m'
elif [[ $BATTPER -le 75 && $BATTPER -gt 50 ]] ; then
	echo $'\E[1;32m' ${BATTSTAT} $'\E[0m'
elif [[ $BATTPER -le 50 && $BATTPER -gt 25 ]] ; then
	echo $'\E[33m' ${BATTSTAT} $'\E[0m'
elif [[ $BATTPER -le 25 && $BATTPER -gt 5 ]] ; then
	echo $'\E[31m' ${BATTSTAT} $'\E[0m'
elif [[ $BATTPER -le 5 ]] ; then
	echo $'\E[5;31m' ${BATTSTAT} $'\E[0m'
fi