#!/bin/bash
# -*- bash -*-

: << =cut

=head1 NAME

haproxy_sessions_backend -Haproxy Sessions Backend

=head1 CONFIGURATION

[haproxy*]
  user root
  env.backend backend_name_1 backend_name_2 backend_name_3
  env.frontend frontend_name_1 frontend_name_2 frontend_name_3
  env.url  http://user:passwd@IP:port/admin?stats;csv

=head1 AUTHOR

Ricardo Fraile <rfrail3@yahoo.es>

=head1 LICENSE

GNU

=head1 MAGICK MARKERS

 #%# family=auto
 #%# capabilities=autoconf

=cut

. $MUNIN_LIBDIR/plugins/plugin.sh

function parse_url {
        # Modify ifs variable
        OIFS=$IFS;
        IFS=",";
        PXNAME="$1"
        SVNAME="$2"
        VALUE="$3"
        LINE1=`curl -s "$url" | head -1 | sed 's/# //'`
        LINE2=`curl -s "$url" | grep "$PXNAME,$SVNAME"`
        
        
        ARRAY1=($LINE1);

        # Find values
        for ((i=0; i<${#ARRAY1[@]}; ++i));
        do
                # Get data
                if [[ "${ARRAY1[$i]}" == "${VALUE}" ]]; then
                        o=$i;
                        o=`expr $o + 1`
                        echo ${LINE2} | cut -d" " -f $o
                fi
        done

        # Reset ifs
        IFS=$OIFS;
}


SVNAME='BACKEND'
LIST="$backend"


if [ "$1" = "autoconf" ]; then
	echo yes 
	exit 0
fi

if [ "$1" = "config" ]; then

	echo "graph_title Current sessions ${SVNAME}"
	echo 'graph_args --base 1000 -l 0 '
	echo 'graph_vlabel Sessions'
	echo 'graph_scale no'
	echo 'graph_category haproxy'
	echo "graph_info Current sessions ${SVNAME}"


	for i in ${LIST}; do
	        echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Current Sessions $i"
        	echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
	        echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
        	echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Current Sessions $i"

	        #echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Max $i"
        	#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
	        #echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
        	#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Max sessions $i"

	        echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Limit Sessions  $i"
        	echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
	        echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
        	echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Limit Sessions $i"
	done

	exit 0
fi
	for i in ${LIST}; do
		SCUR=`parse_url ${i} ${SVNAME} scur`
		#SMAX=`parse_url ${i} ${SVNAME} smax`
		SLIM=`parse_url ${i} ${SVNAME} slim`

	        echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SCUR"
        	#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SMAX"
        	echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SLIM"
	done