#!/usr/bin/env bash
# This file is part of FreePBX.
#
#    FreePBX 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 2 of the License, or
#    (at your option) any later version.
#
#    FreePBX 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 FreePBX.  If not, see <http://www.gnu.org/licenses/>.
#
#    Copyright 2007, Philippe Lindheimer
#
ROOT_UID=0	 # root uid is 0
E_NOTROOT=67	 # Non-root exit error

echo
# check to see if we are root
if [ "$UID" -ne "$ROOT_UID" ]
then
	echo "Sorry, you must be root to run this script."
	echo
	exit $E_NOTROOT
fi

check_asterisk() {
# check to see if asterisk is running
# Note, this isn't fool-proof.  If safe_asterisk is constantly restarting a dying asterisk, then there is a chance pidof will return non zero.  
# We call this twice to reduce chances of this happening
pid_length=`pidof asterisk|awk '{print length($0)}'`
	if [ "$pid_length" == "0" -a "$pid_length" != "" ]
		then
				killall -9 safe_asterisk
				killall -9 mpg123 > /dev/null
				echo
				echo "-----------------------------------------------------"
				echo "Asterisk could not start!"
				echo "Use 'tail $ASTLOGDIR/full' to find out why."
				echo "-----------------------------------------------------"
				exit 0
		fi
}

run_asterisk() {
# check to see if asterisk is running
echo
echo "STARTING ASTERISK"
pid_length=`pidof asterisk|awk '{print length($0)}'`
	if [ "$pid_length" != "0" -a "$pid_length" != "" ]
		then
			echo "Asterisk is already running"
		else
			# su - asterisk -c "export PATH=$PATH:/usr/sbin && export LD_LIBRARY_PATH=/usr/local/lib && /usr/sbin/safe_asterisk"
			export LD_LIBRARY_PATH=/usr/local/lib
			/usr/sbin/safe_asterisk -U asterisk -G asterisk
			sleep 5
			check_asterisk
			sleep 1
			check_asterisk
			echo "Asterisk Started"
		fi
}

stop_asterisk() {
echo
echo "STOPPING ASTERISK"
pid_length=`pidof asterisk|awk '{print length($0)}'`
	if [ "$pid_length" != "0" -a "$pid_length" != "" ]
		then
			/usr/sbin/asterisk -rx "stop gracefully"
			echo "Asterisk Stopped"
		fi
}

kill_amp() {
	echo
	echo "KILLING AMP PROCESSES"
	killall -9 safe_asterisk
	killall -9 asterisk
	killall -9 mpg123
	ps -ef | grep safe_opserver | grep -v grep | awk '{print $2}' | xargs kill -9
	killall -9 op_server.pl
}

case "$1" in
	start)
		run_asterisk
	;;
	stop)
		stop_asterisk
	;;
	restart)
		stop_asterisk
		sleep 1
		run_asterisk
	;;
	kill)
		kill_amp
	;;
	*)
		echo "-------------FreePBX Control Script-----------------------------------------------"
		echo
		echo "Usage:       amportal start|stop|restart|start_fop|stop_fop|restart_fop|kill|chown"
		echo
		echo "start:       Starts Asterisk and Flash Operator Panel server if enabled"
		echo "stop:        Gracefully stops Asterisk and the FOP server"
		echo "restart:     Stop and Starts"
		echo "kill:        Kills Asterisk and the FOP server"
		echo
		exit 1
	;;
esac