#!/bin/bash

WORKSPACE=$(cd $(dirname $0)/; pwd)
cd $WORKSPACE

mkdir -p log conf

module=
appname=$(basename $WORKSPACE)
## 注意：这里每个应用的启动命令是不一样的，
## 启动命令必须在前端运行(即不需要nohup)运行，
## 系统会自动加上nohup运行 
## 例如：run_cmd=java -jar spring-hello.jar
run_cmd=./fileserver
conf=conf/cfg.json
pidfile=conf/app.pid
logfile=log/app.log

function check_pid() {
    if [ -f $pidfile ];then
        pid=`cat $pidfile`
        if [ -n $pid ]; then
            running=`ps -p $pid|grep -v "PID TTY" |wc -l`
            return $running
        fi
    fi
    return 0
}
#应用发布接口
function deploy() {
#自定义发布
#例如修改配置，移动文件夹等。。。
echo "请修改deploy接口，以满足你的发布需求。"

}

#应用启动接口
function start() {
    check_pid
    running=$?
    if [ $running -gt 0 ];then
        echo -n "$appname now is running already, pid="
          cat $pidfile
        return 1
    fi
    
    nohup $run_cmd   &> $logfile &
    echo $! > $pidfile
    #echo "$appname started..., pid=$!"
	sleep 3
	status
}
#停止应用接口
function stop() {
    pid=`cat $pidfile`
    kill $pid
    echo "$appname stoped..."
}

function restart() {
    stop
    sleep 1
    start
}
#应用状态检测接口
function status() {
    check_pid
    running=$?
    if [ $running -gt 0 ];then
        echo -n "$appname now is running, pid="
        cat $pidfile
		#注意：以下输出不能修改，程序会自动根据这个输出做状态判断 
		echo "app_status:running"
    else
	    #注意：以下输出不能修改，程序会自动根据这个输出做状态判断 
        echo "$appname is stoped"
		echo "app_status:stoped"
    fi
}

function tailf() {
    timeout 50 tail -f $logfile
}
#应用构建接口
function build() {
    # 注意：如果需要定制编译命令，可以修改这里
	git log -1 --pretty=%h > gitversion
	if [[ -f ./build.sh ]];then
		sh ./build.sh #custom
	elif [[ -f ./pom.xml ]];then
		mvn install #java
	elif [[ -f ./package.json ]];then
		npm install #node
		npm run product
	fi

    if [ $? -ne 0 ]; then
        exit $?
    fi
}

function pack() {
    build
    version=`cat gitversion`
    file_list="control $appname"
    tar zcf $appname-$version.tar.gz gitversion $file_list
}

function packbin() {
    build
    git log -1 --pretty=%h > gitversion
    version=`cat gitversion`
    tar zcvf $appname-bin-$version.tar.gz $appname gitversion
}

function help() {
    echo "$0 start|stop|restart|status|tail|build|pack|deploy|help"
}

if [ "$1" == "" ]; then
    help
elif [ "$1" == "stop" ];then
    stop
elif [ "$1" == "start" ];then
    start
elif [ "$1" == "build" ];then
    build
elif [ "$1" == "deploy" ];then
    deploy
elif [ "$1" == "restart" ];then
    restart
elif [ "$1" == "pack" ];then
    pack
elif [ "$1" == "status" ];then
    status
elif [ "$1" == "tail" ];then
    tailf
else
    help
fi