#!/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
ncpu="`getconf NPROCESSORS_ONLN || sysctl -n kern.smp.cpus`"
export LC_TIME=C
[ "`id -u`" = 0 ] && nice="nice -n 15" || nice=
$nice atopsar -c "$INTERVAL" | sed -ur -e 1,5d -e "s/^.{9}//" | while read -r line; do
	set -- $line
	[ "$1" = ----------------- ] && continue
	if [ $# -lt 10 ]; then
		echo "data error: # $# less than 10" 1>&2
		continue
	fi
	[ "$1" = cpu ] && continue
	if [ -n "$ncpu" ] && [ "$1" = all ]; then
		user=$(($2/ncpu))
		nice=$(($3/ncpu))
		system=$(($4/ncpu))
		irq=$(($5/ncpu))
		softirq=$(($6/ncpu))
		steal=$(($7/ncpu))
		guest=$(($8/ncpu))
		iowait=$(($9/ncpu))
		idle=$((${10}/ncpu))
		if [ -n "$INFLUXDB_BASE_URL" ]; then
			extra_data="cpustat,host=$HOSTNAME,cpu=avg user=$user,nice=$nice,system=$system,irq=$irq,softirq=$softirq,steal=$steal,guest=$guest,iowait=$iowait,idle=$idle"
		fi
		if [ -n "$CARBON_SERVER" ]; then
			printf '%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n' \
				"cpustat.$HOSTNAME.avg.user $user -1" \
				"cpustat.$HOSTNAME.avg.nice $nice -1" \
				"cpustat.$HOSTNAME.avg.system $system -1" \
				"cpustat.$HOSTNAME.avg.irq $irq -1" \
				"cpustat.$HOSTNAME.avg.softirq $softirq -1" \
				"cpustat.$HOSTNAME.avg.steal $steal -1" \
				"cpustat.$HOSTNAME.avg.guest $guest -1" \
				"cpustat.$HOSTNAME.avg.iowait $iowait -1" \
				"cpustat.$HOSTNAME.avg.idle $idle -1"
		fi
	else
		extra_data=
	fi
	if [ -n "$INFLUXDB_BASE_URL" ]; then
		http_post "${INFLUXDB_BASE_URL}write?db=$INFLUXDB_DB_NAME" \
			"cpustat,host=$HOSTNAME,cpu=$1 user=$2,nice=$3,system=$4,irq=$5,softirq=$6,steal=$7,guest=$8,iowait=$9,idle=${10}
$extra_data" 1>&2
	fi
	if [ -n "$CARBON_SERVER" ]; then
		printf '%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n' \
			"cpustat.$HOSTNAME.$1.user $2 -1" \
			"cpustat.$HOSTNAME.$1.nice $3 -1" \
			"cpustat.$HOSTNAME.$1.system $4 -1" \
			"cpustat.$HOSTNAME.$1.irq $5 -1" \
			"cpustat.$HOSTNAME.$1.softirq $6 -1" \
			"cpustat.$HOSTNAME.$1.steal $7 -1" \
			"cpustat.$HOSTNAME.$1.guest $8 -1" \
			"cpustat.$HOSTNAME.$1.iowait $9 -1" \
			"cpustat.$HOSTNAME.$1.idle ${10} -1"
	fi
done | send_carbon_lines
