#!/bin/bash

## Copyright (C) 2012 Robert Kilian <robertkilian@ostechnologies.net> 
##
## This file is part of the Xastir plugin for Munin.
##
## Xastir-Munin is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public
## License as published by the Free Software Foundation;
## either version 3 of the License, or (at your option) any
## later version.
##
## Xastir-Munin is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied
## warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
## PURPOSE.  See the GNU General Public License for more
## details.
##
## You should have received a copy of the GNU General Public
## License along with Xastir-Munin; see the file COPYING.  If not,
## see <http://www.gnu.org/licenses/>.
##
## Version 0.1 -- 07.26.12
##

## Be sure to correctly edit the STATION_CALL, XASTIRDIR, and LOGDIR variables
##
## STATION_CALL: The callsign used by Xastir (include suffix if one is in use)
## XASTIRDIR: The directory where Xastir's data, config, etc files are found.  Typically ~/.xastir
## LOGDIR:  Logs are typically stored in ~/.xastir/logs.  Ensure that permissions are set appropriately to allow the munin user to read these logs

# Location of active instance of Xastir
XASTIRDIR="/home/USERNAME/.xastir"

# Grab the station's callsign from Xastir config
# this currently does not derive the station call correctly when called by the server, but works using munin-run...
#STATION_CALL=`grep ^STATION_CALLSIGN:.* $XASTIRDIR/config/xastir.cnf | awk -F":" '{print $2}'`
STATION_CALL=""

# Location of Xastir's logs (this can be a symlink to where Xastir actually writes the logs)
LOGDIR="/var/log/xastir/logs"


case $1 in
   config)
        cat <<'EOM'

graph_title Xastir Packet Stats
graph_vlabel Packets
graph_category radio
graph_scale no
graph_printf %.0lf

igatetonet.label IGate - RF to Net
igatetonet.type COUNTER
igatetonet.min 0
igatetonet.max 500
igatetonet.LINE1

message.label Message RX
message.type COUNTER
message.min 0
message.max 500
message.draw LINE1

messagetx.label Message TX
messagetx.type COUNTER
messagetx.min 0
messagetx.max 500
messagetx.draw LINE1

net.label Net RX
net.type COUNTER
net.min 0
net.max 500
net.draw LINE1

nettx.label Net TX
nettx.type COUNTER
nettx.min 0
nettx.max 500
nettx.draw LINE1

tnc.label TNC RX
tnc.type COUNTER
tnc.min 0
tnc.max 500
tnc.draw LINE1

tnctx.label TNC TX
tnctx.type COUNTER
tnctx.min 0
tnctx.max 500
tnctx.draw LINE1

EOM
        exit 0;;
esac

# Parse logs for various values
IGATETONET=`cat $LOGDIR/igate.log | grep -e '^IGATE RF' | wc -l`
MESSAGE=`cat $LOGDIR/message.log | grep -v '^\#' | grep -v ^$STATION_CALL | wc -l`
MESSAGETX=`cat $LOGDIR/message.log | grep -v '^\#' | grep ^$STATION_CALL | wc -l`
NET=`cat $LOGDIR/net.log | grep -v '^\#' | grep -v ^$STATION_CALL | wc -l`
NETTX=`cat $LOGDIR/net.log | grep -v '^\#' | grep ^$STATION_CALL | wc -l`
TNC=`cat $LOGDIR/tnc.log | grep -v '^\#' | grep -v ^$STATION_CALL | wc -l`
TNCTX=`cat $LOGDIR/tnc.log | grep -v '^\#' | grep ^$STATION_CALL | wc -l`

# Display values 
echo "igatetonet.value $IGATETONET"
echo "message.value $MESSAGE"
echo "messagetx.value $MESSAGETX"
echo "net.value $NET"
echo "nettx.value $NETTX"
echo "tnc.value $TNC"
echo "tnctx.value $TNCTX"