#! /bin/sh

: <<=cut

=head1 NAME

battery_ - monitor battery status via the uevent API


=head1 CONFIGURATION

It is a wildcard plugin, symlink it into the plugins directory.

 [battery_*]
 env.percent no

By default the charge current is displayed as mAh, but you can also use percentage if you
prefer, by setting the environment variable "percent" to "yes".


=head1 AUTHORS

Copyright 2015 Steve Schnepp <steve.schnepp@pwkf.org>


=head1 LICENSE

GNU Library General Public License v2 only

SPDX-License-Identifier: GPL-2.0-only

=cut

battery_name=${0##*_}
percent=${percent:-"no"}

if [ "$1" = "config" ]
then
	echo "graph_title Battery $battery_name"
  echo "graph_category sensors"
	if [ "$percent" = "yes" ]
	then
		echo "graph_vlabel %"
	else
		echo "graph_vlabel mAh"
	fi

	echo "charge_design.label Design charge"
	echo "charge_design.draw AREA"
	[ "$percent" = "yes" ] && echo "charge_design.cdef charge_design,charge_design,/,100,*"

	echo "charge_full.label Full charge"
	echo "charge_full.draw AREA"
	[ "$percent" = "yes" ] && echo "charge_full.cdef charge_full,charge_design,/,100,*"
	echo "charge_now.label Current charge"
	echo "charge_now.draw AREA"
	[ "$percent" = "yes" ] && echo "charge_now.cdef charge_now,charge_design,/,100,*"

	exit 0
fi

# Crudely read all the vars into the current namespace
. /sys/class/power_supply/$battery_name/uevent

echo "charge_design.value $(( $POWER_SUPPLY_CHARGE_FULL_DESIGN / 1000 )) "
echo "charge_full.value $(( $POWER_SUPPLY_CHARGE_FULL / 1000 ))"
echo "charge_now.value $(( $POWER_SUPPLY_CHARGE_NOW / 1000 ))"

exit 0


:<< DATA
cat /sys/class/power_supply/$1/uevent
POWER_SUPPLY_NAME=CMB1
POWER_SUPPLY_STATUS=Charging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CYCLE_COUNT=0
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=10800000
POWER_SUPPLY_VOLTAGE_NOW=11418000
POWER_SUPPLY_CURRENT_NOW=2668000
POWER_SUPPLY_CHARGE_FULL_DESIGN=5200000
POWER_SUPPLY_CHARGE_FULL=5000000
POWER_SUPPLY_CHARGE_NOW=100000
POWER_SUPPLY_CAPACITY=2
POWER_SUPPLY_CAPACITY_LEVEL=Normal
POWER_SUPPLY_MODEL_NAME=CP293570
POWER_SUPPLY_MANUFACTURER=Fujitsu
DATA