#!/bin/bash
version="1.0.1";

appName=$2
if [ -z $appName ];then
    appName=`ls -t |grep .jar$ |head -n1`
fi

function start()
{
        count=`ps -ef |grep java|grep $appName|wc -l`
        if [ $count != 0 ];then
                echo "Maybe $appName is running, please check IT..."
        else
                echo "The $appName is starting..."
                nohup java -XMs512m -Xmx512m -Xmn256m -XLOGgc:./gc.log -verbose:gc -XX:+PRintGCDetails -XX:+PrintGCDatestamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -jar ./$appName > ./app-log.out 2>&1 &
        fi
}

function stop()
{
        appId=`ps -ef |grep java|grep $appName|awk '{print $2}'`
        if [ -z $appId ];then
            echo "Maybe $appName not running, please check it..."
        else
        echo "The $appName is stopping..."
        kill -9 $appId
        fi
}

function restart()
{
    # get release version
    releaseApp=`ls -t |grep .jar$ |head -n1`

    # get last version
    lastVersionApp=`ls -t |grep .jar$ |head -n2 |tail -n1`

    appName=$lastVersionApp
    stop
    for i in {5..1}
    do
        echo -n "$i "
        sleep 1
    done
    echo 0

    backup

    appName=$releaseApp
    start
}

function backup()
{
    # get backup version
    backupApp=`ls |grep -wv $releaseApp$ |grep .jar$`

    # create backup dir
    if [ ! -d "backup" ];then
        mkdir backup
    fi

    # backup
    for i in ${backupApp[@]}
    do
        echo "backup" $i
        mv $i backup
    done
}
function status()
{
    appId=`ps -ef |grep java|grep $appName|awk '{print $2}'`
        if [ -z $appId ]
        then
            echo -e "33[31m Not running 33[0m"
        else
            echo -e "33[32m Running [$appId] 33[0m"
        fi
}


function usage()
{
    echo "Usage: $0 {start|stop|restart|status|stop -f}"
    echo "Example: $0 start"
    exit 1
}

case $1 in
        start)
        start;;

        stop)
        stop;;

        restart)
        restart;;

        status)
        status;;

        *)
        usage;;
esac