#!/bin/bash

##################################
#  @program        smon
#  @description    simulation monitor
#  @copyright      Copyright “(c)2009 Centre National de la Recherche Scientifique CNRS. 
#                             All Rights Reserved”
#  @svn_file       $Id: failover 2545 2013-02-01 09:58:10Z jripsl $
#  @version        $Rev: 2545 $
#  @lastrevision   $Date: 2013-02-01 10:58:10 +0100 (Fri, 01 Feb 2013) $
#  @license        CeCILL (http://dods.ipsl.jussieu.fr/jripsl/smon/LICENSE)
##################################

# Notes
#   - bash required version: 3+
#   - "=" and " " are used as delimiter in scenario file (be sure note to use it in fields data)

# init

stack_file=$1
send_msg_cmd="/home/jripsl/snapshot/Monitoring/CNClient/sendAMQPMsg"
scenario_dir=scenario
g__mode="scenario"
g__stackfile=
g__scenario_file=

# func

curdate ()
{
    date '+%F %T'
}

msg ()
{
    l__code="$1"
    l__msg="$2"

    echo "$(curdate) - $l__code - $l__msg"
}

usage ()
{
	cat >&1 << EOF

USAGE: $(basename $0) [-m mode] [-s scenario] [-l] [-t file]

OPTIONS:
   -f              set stack file
   -l              print scenarios list 
   -m              set mode (if missing, "scenario" mode is used)
   -s              set scenario

EXAMPLES:

   To parse a stack file and send corressponding messages, do:

   $0 -m stackfile -f ../sample/stack_light

   To list scenarios, do:

   $0 -l

   To run scenario <scenario>, do:

   $0 -s <scenario>
EOF
	exit 2
}

list_scenarios ()
{
	echo ""
	echo "Scenarios list:"
	echo ""
	ls -1 $scenario_dir
	echo ""
	exit 2
}

# check

if [ $# -eq 0 ]; then
	usage
fi

# parse args

while getopts 'f:hlm:s:' OPTION
do
  case $OPTION in
  f)    g__stackfile="$OPTARG"
        ;;
  h)    usage
        ;;
  l)    list_scenarios
        ;;
  m)    g__mode="$OPTARG"
        ;;
  s)    l__scenario_file="$OPTARG"

		if [[ "$l__scenario_file" =~ "*/*" ]]; then
			# full/relative path was given with the filename

			g__scenario_file="$l__scenario_file"
		else
			# only the filename was given

			g__scenario_file="$scenario_dir/$l__scenario_file"
		fi

		;;
  ?)    exit 1 # we come here when a required option argument is missing (bash getopts mecanism)
        ;;
  esac
done

# mode switch
if [ "$g__mode" = "scenario" ]; then

	# check
	if [ ! -f "$g__scenario_file" ]; then
		msg "LIBIGCM-MOCK-ERR003" "scenario file not found"
		exit 1
	fi

	N=0
	while read LINE ; do

		N=$((N+1))

		l__JSON_msg_buf=

		# process fields (split on " " delimiter)
		for field in "$LINE"; do
			arr=(${LINE//=/ }) # process key/value (split on "=" delimiter)
			key=${arr[0]}
			val=${arr[1]}

			# base64 encoding

			# append to JSON message buffer
			l__JSON_msg_buf=$l__JSON_msg_buf

		done

		# message base64 encoding


		#callname=$(echo $line | awk -F" " '{print $4}' )

		# send AMQP message
		#$send_msg_cmd localhost 5672 string "$callname"
		echo

	done < $g__scenario_file

elif [ "$g__mode" = "stackfile" ]; then

	# check
	if [ ! -f $stack_file ]; then
		msg "LIBIGCM-MOCK-ERR001" "file not found"
		exit 1
	fi

	IFS=$'\n'
	for line in $(cat $stack_file); do
		#echo $line | awk -F" " '{print $4}'
		callname=$(echo $line | awk -F" " '{print $4}' )
		$send_msg_cmd localhost 5672 string "$callname"
	done
else
	msg "LIBIGCM-MOCK-ERR002" "incorrect mode"
	exit 1
fi

exit 0