#!/bin/bash

#
# (c) Tom Yates / Gatekeeper Technology Ltd. 2008
#  with thanks to ipaccess.com who paid for this to be
#  written, and permitted its redistribution under GPL (v3)

# plugin must be linked as climate_FQDN_VAR, where FQDN is that
#  of climate server and VAR is the variable (temp, rh, air, light, sound)
#  you wish to retrieve
# eg climate_mycm2.foo.com_temp

# HOST is the hostname of the climate server, must be in /etc/hosts
HOST=`basename $0 | cut -f2 -d_`

# VAR is variable to grab (temp, rh, air, light, sound)
VAR=`basename $0 | cut -f3 -d_`

# it will retrieve and make available five data,
#  temp (Temperature), rh (relative humidity), air (Air Flow), light
#  (Light Level) and sound (Sound Level)


# CONFIG
case $1 in
   config)
echo host_name $HOST
case $VAR in
  temp)
    echo graph_title Temperature
    echo graph_vlabel degrees C
    echo temp.notify_alias Temperature
    echo temp.warning 26
    echo temp.critical 31
    echo "temp.label Temperature (degrees C)" ;;
  rh)
    echo graph_title Relative Humidity
    echo graph_vlabel per cent
    echo rh.notify_alias Relative Humidity
    echo "rh.label Relative Humidity (%)" ;;
  air)
    echo graph_title Airflow
    echo air.notify_alias Airflow
    echo air.label Airflow ;;
  light)
    echo graph_title Light level
    echo light.notify_alias Light Level
    echo light.label Light level ;;
  sound)
    echo graph_title Sound level
    echo sound.notify_alias Sound Level
    echo sound.label Sound Level ;;
esac
echo  graph_category Other
exit 0;;

esac



# FETCH
case $VAR in
  temp)
VALUE=`lynx --source http://${HOST}/ | grep -A 1 "Temperature" | tail -1 | \
 sed 's/[^0-9.]//g' `
echo temp.value $VALUE ;;

  rh)
VALUE=`lynx --source http://${HOST}/ | grep -A 1 "Relative Humidity" | \
 tail -1 | sed 's/[^0-9.]//g' `
echo rh.value $VALUE ;;

  air)
VALUE=`lynx --source http://${HOST}/ | grep -A 1 "Air Flow" | tail -1 | \
 sed 's/[^0-9.]//g' `
echo air.value $VALUE ;;

  light)
VALUE=`lynx --source http://${HOST}/ | grep -A 1 "Light Level" | tail -1 | \
 sed 's/[^0-9.]//g' `
echo light.value $VALUE ;;

  sound)
VALUE=`lynx --source http://${HOST}/ | grep -A 1 "Sound Level" | tail -1 | \
 sed 's/[^0-9.]//g' `
echo sound.value $VALUE ;;

esac