#!/bin/sh
# Sample Event Script written by Bob Perry
#
# Enters via the avr_evtd daemon with the following command options:
#  0 - Special event following double press of the 'red' reset button
#  1 - AVR device has requested a halt due to error
#  2 - Shutdown request from timed shutdown logic
#  3 - User has released the power button
#  4 - User has pressed the power button
#  5 - User has released the 'red' reset button
#  6 - User has pressed the reset button
#  7 - User has held the power button > 3 seconds
#  8 - User has held the reset button > 3 seconds
#  9 - Disk used beyond DISKCHECK%
#  F - Fan failure event, fan stopped for > FANSTOP seconds
#  E - User selected EM-Mode
#  S - Five minute shutdown warning event
#  D - Error message handler

DEVICE=$2

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin
tag=avr-daemon
facility=user.info

. /etc/default/avr_evtd

if [ "$DEBUG" = "ON" ] && [ -d "$LOG" ]; then
  echo "`date` command is $1[$3] for $DEVICE" >> $LOG/avr_evtd.log
fi

if [ -f "/tmp/.inst-instflashing" ] ; then
  if [ ! -f "/tmp/.inst-instdone" ] ; then
    NOCMD="1"
  fi
fi

case "$1" in
  0)  case "$3" in
	1)  # Indicate this mode by flashing the DISK FULL LED
            echo -n "YYYY" > $DEVICE
  	    # Add an EM IP address or if no ethernet, start it up
	    FAIL=1
	    route -n | grep -q eth0 && FAIL=0
	    if [ "$FAIL" -eq 0 ]; then
	      FAIL=1
	      route -n | grep -q 192.168.11.0 && FAIL=0
	      if [ "$FAIL" -eq 1 ]; then
	        ifconfig eth0:EM 192.168.11.150 netmask 255.255.255.0 up
	      fi
	    else
	      /sbin/ifup --force -a -i /etc/avr_evtd/emergency_eth0
	      sleep 1
	      route add -net 192.168.11.0 netmask 255.255.255.255.0 eth0:EM
	    fi
            if [ -e /sbin/utelnetd ]; then
              utelnetd -p 1234 -l /bin/bash &
	    fi ;;
        3)  # Flash more lights to indicate we are desperate
            echo -n "SSSS" > $DEVICE
	    ;;
	*)  exit -2 ;;
	esac ;;
  3)  echo -n "[avr_evtd]: Power Button Up"
      ;;
  4)  echo -n "[avr_evtd]: Power Button Down"
      ;;
  5)  echo -n "[avr_evtd]: Reset Button Up"
      ;;
  6)  echo -n "[avr_evtd]: Reset Button Down"
      ;;
  1|2|7)  echo -n "[avr_evtd]: Shutdown"
      if [ ! "$NOCMD" = "1" ] ; then
	echo -n "EEEE" > $DEVICE
        halt 
      fi ;;
  8)  echo -n "[avr_evtd]: User demanded reset"
      if [ ! "$NOCMD" = "1" ] ; then
        echo -n "CCCC" > $DEVICE
        reboot
      fi ;;
  9)  if [ "$3" -eq 0 ]; then
        echo -n "[avr_evtd]: Disk usage now safe"
      else
        echo -n "[avr_evtd]: Disk used $3% > Monitored $DISKCHECK%"
      fi ;;
  E)  echo -n "[avr_evtd]: EM mode selected"
      ;;
  F)  echo -n "[avr_evtd]: Fan failure detected"
      if [ "$3" -eq 0 ]; then
        logger -p user.emerg 'AVR Detected fan fault'
      fi
      if [ "$3" -eq 4 ]; then
        # Illuminate relevant LED and wait for AVR halt message
        echo -n "iiii" > $DEVICE
      fi ;;
  S)  if [ "$3" -gt 100 ];  then 
        MESSAGE="System shutdown in less than 5 minutes"
      else
        MESSAGE="Shutdown delayed by $3 minutes"
      fi
      # Produce relevant message
      logger -p user.emerg $MESSAGE ;;
  D)  MESSAGE="[$3] Error with configuration file"
      logger -t $tag -p $facility $MESSAGE ;;
  *)  exit 1
      ;;
esac

exit 0