#!/bin/bash
# chkconfig: 2345 55 25
# description: Elastic Drive startup script
# Modified on 7/31/2007

# this is variables declaration
BASEDIR=`dirname $0`
PID=`cat "$BASEDIR/elasticdrive.pid"`


# this is control code
if [[ "$1" == "help" ]]; then
       help_ed
fi
if [[ "$1" == "restart" ]] && [[ -e "$BASEDIR/elasticdrive.pid" ]]; then
        restart_ed
        exit $?
elif [[  "$1" == "restart" ]];then
        echo "Cannot stop elasticdrive. Not running."
        exit 1
fi
if [[ -e $BASEDIR/elasticdrive.pid ]] && [[ -e "$BASEDIR/elasticdrive.pid" ]]; then
        if [[ "$1" == "stop" ]];then
               stop_ed
        else
                echo "Elastic drive is already running with PID:`cat $BASEDIR/elasticdrive.pid`"
                echo "If this is a stale PID, just delete the file."
                exit 1
        fi
fi


# this is library of functions
function start_ed  {
        if check_ids ; then
                "$BASEDIR/elasticdrive" start
                python "$BASEDIR/s3_nbd_server.pyc" 2>>$BASEDIR/logs/elasticdrive.log 1>>$BASEDIR/logs/elasticdrive.log & PID$
                echo $PID > "$BASEDIR/elasticdrive.pid"
                echo "Started elasticdrive as pid $PID"
                exit 0
        else
        echo "Please enter your access id information in config.ini \n see AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY";
        exit 1
fi
}

function stop_ed  {
         echo "Killing $PID"
         kill $PID
         rm "$BASEDIR/elasticdrive.pid"
         exit 0
}

function restart_ed  {
        stop_ed
        start_ed
        exit 0
}

function help_ed {
        echo "Usage: elasticdrive [start|stop|restart]"
        exit 1
}

function check_ids {

        # get file handle
        if  [[ -e "$BASEDIR/config.ini" ]]; then
                echo "File config.ini is not found in $BASEDIR ! Exiting setup..."
                exit 0
        else
        # check whether ids are present
                if grep 'XXXX' $BASEDIR/config.ini; then
                        exit 0
                else
                        exit 1
                fi
fi
}

start_ed