#!/bin/bash

### BEGIN INIT INFO
# Provides:          get_archives
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start/Stop get_archives server
### END INIT INFO
# chkconfig: 35 92 1

# SysV Init script
# Only for documentation DO NOT USE THIS


# script settings
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin

config=/usr/local/etc/get_archives.conf
daemon=/usr/local/bin/get_archives

serviceport=$(grep -i "^serviceport" $config | cut -d '=' -f 2)

function start_service() {
        if ! netstat -tan | grep $serviceport | grep -Eq "ESTABLISHED|LISTEN"; then
                $daemon $debug &
                sleep 1
                if netstat -tan | grep $serviceport | grep -Eq "LISTEN"; then
                        echo "$(basename $daemon) started and accepting connections on port $serviceport"
                        retval=0
                else
                        echo "$(basename $daemon) not started. Manual check needed"
                        retval=2
                fi
        else
                echo "FATAL ERROR : Cannot use ServicePort $serviceport for main service. Port already in use"
                retval=1
        fi
}

debug=""
[ "$1" == "--debug" ] && debug="--debug" && shift

case $1 in
        start)
                echo "Starting $(basename $daemon)"
                start_service
                ;;
        stop)
                echo "Stopping $(basename $daemon)"
                echo "EXIT_THIS" | nc localhost $serviceport 2> /dev/null
                retval=$?
                if [ $retval -ne 0 ]; then
                        echo "No instance of $daemon on port $serviceport found"
                fi
                ;;
        status)
                echo "Status $(basename $daemon)"
                echo "STATUS" | nc localhost $serviceport 2> /dev/null
                retval=$?
                if [ $retval -ne 0 ]; then
                        echo "No instance of $(basename $daemon) on port $serviceport found"
                fi
                ;;
        reload)
                echo "Reloading config of $(basename $daemon)"
                echo "RELOAD" | nc localhost $serviceport 2> /dev/null
                retval=$?
                if [ $retval -ne 0 ]; then
                        echo "No instance of $(basename $daemon) on port $serviceport found"
                else
                        echo "STATUS" | nc localhost $serviceport 2> /dev/null
                fi
                ;;
        restart)
                echo "Stopping $(basename $daemon)"
                echo "EXIT_THIS" | nc localhost $serviceport 2> /dev/null
                retval=$?
                if [ $retval -ne 0 ]; then
                        echo "No instance of $(basename $daemon) on port $serviceport found"
                        retval=0
                fi
                if [ $retval -eq 0 ]; then
                        sleep 1
                        echo "Starting $(basename $daemon)"
                        start_service
                        retval=$?
                fi
                ;;
        *)
                echo "Usage : $(basename $0) {start|stop|status|restart|reload}"
                retval=1
                ;;
esac

exit $retval