#!/bin/sh

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home
export PATH=$JAVA_HOME/bin:$PATH

workspace="$(cd "$(dirname "$0")" && pwd -P)"
cd "${workspace}"
app=springboot-demo.jar
logfile=var/app.log
pidfile=var/app.pid
cfg=dev
JVM_ARGS="-server -Xms2G -Xmx2G -XX:+UseG1GC -XX:+DisableExplicitGC -XX:MaxGCPauseMillis=500 -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintTenuringDistribution -XX:+PrintHeapAtGC -Djava.awt.headless=true -Xloggc:logs/gc.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=logs -XX:ErrorFile=logs/hs_err_pid%p.log"

#默认使用dev的配置
function setconfig(){
    local clusterfile="$workspace/.deploy/service.cluster.txt"
    if [[ -f "$clusterfile" ]]; then
         local cluster=`cat $clusterfile`
       if [ $cluster == "hnc-pre-v" ]; then
                cfg="pre"
            elif [ $cluster == "hnc-v" ]; then
                cfg="prod"
            fi
    else
        echo "set config error:$clusterfile "
    fi
}


start() {
    setconfig
    exec java -jar ${JVM_ARGS} -Dspring.profiles.active=${cfg} ${workspace}/springboot-demo.jar > /dev/null 2>&1
}

stop() {
    i=0
    while [ $i -lt 60 ]; do
        if check_pid; then
            echo "" >${pidfile}
            echo "${app} is stopped"
            exit 0
        fi
        pid="$(get_pid)"
        if [ "x" = "x${pid}" ]; then
            echo "${app} is stopped, can't find pid on ${pidfile}"
            exit 0
        fi
        kill "${pid}" >/dev/null 2>&1
        if check_pid; then
            echo "" >${pidfile}
            echo "${app} stop ok"
            exit 0
        fi
        sleep 1
        i=$((i + 1))
    done
    echo "stop timeout"
    exit 1
}

status() {
    if ! check_pid; then
        echo "${app} is started, pid=$(get_pid)"
    else
        echo "${app} is stopped"
    fi
    exit 0
}

get_pid() {
    pid=""
    if [ -f ${pidfile} ]; then
        pid=$(cat ${pidfile})
    fi
    echo "$pid"
}

check_pid() {
    pid=$(get_pid)
    if [ "x" != "x${pid}" ]; then
        # shellcheck disable=SC2009
        running=$(ps -p "${pid}" | grep -c -v "PID TTY")
        return "${running}"
    fi
    return 0
}

action=$1
case ${action} in
"start")
    start
    ;;
"stop")
    stop
    ;;
"status")
    status
    ;;
*)
    echo "unknown command"
    exit 1
    ;;
esac