#!/bin/sh

# Copyright 2015-2020 Rivoreo

# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:

# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
# FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

if [ -z "${PROGRAM_DIR+set}" ]; then
	echo "You should not run this script directly" 1>&2
	exit 255
fi
export LC_TIME=C
atopsar -ai "$INTERVAL" | sed -ur -e 1,5d -e "s/^.{9}//" | while read -r line; do
	set -- $line
	if [ $# -lt 9 ]; then
		echo "data error: # $# less then 9" 1>&2
		continue
	fi
	[ "$1" = interf ] && continue
	case "$6" in
		*.?)
			tx_rate=$((${6%.*}${6##*.}*1024/10))
			;;
		*)
			tx_rate=$(($6*1024))
			;;
	esac
	case "$5" in
		*.?)
			rx_rate=$((${5%.*}${5##*.}*1024/10))
			;;
		*)
			rx_rate=$(($5*1024))
			;;
	esac
	if [ -n "$INFLUXDB_BASE_URL" ]; then
		http_post "${INFLUXDB_BASE_URL}write?db=$INFLUXDB_DB_NAME" \
			"traffic,host=$HOSTNAME,interface=$1 receive_rate=$rx_rate,transmit_rate=$tx_rate"
	fi
	if [ -n "$CARBON_SERVER" ]; then
		printf '%s\n%s\n' \
			"traffic.$HOSTNAME.$1.receive_rate $rx_rate -1" \
			"traffic.$HOSTNAME.$1.transmit_rate $tx_rate -1"
	fi
done | send_carbon_lines
