#!/bin/bash

APP_NAME=baoshi-measure-cargo
APP_PATH=/bssoft/baoshi-measure-cargo
cd $APP_PATH

#使用说明，用来提示输入参数
usage() {
    echo "Usage: sh demo.sh [start|stop|restart|status]"
    exit 1
}

#检查程序是否在运行
is_exist() {
    pid=$(ps -ef | grep "$APP_NAME" | grep -v grep | grep -vF "$0" | awk '{print $2}')
    #如果不存在返回1，存在返回0
    if [ -z "${pid}" ]; then
      return 1
    else
      return 0
    fi
}

#启动方法
start() {
   is_exist
   if [ $? -eq "0" ]; then
     echo "${APP_NAME} is already running. pid=${pid} ."
   else
     export API_PORT=8080
     export ROI_WIDTH_CM=10 # cm
     export ROI_HEIGHT_CM=10 # cm
     export MIN_DEPTH=50 # cm
     export MAX_DEPTH=400 # cm

     source env/bin/activate
     nohup python $APP_PATH/main.py > output.log 2>&1 &
   fi
}

#停止方法
stop() {
   is_exist
   if [ $? -eq "0" ]; then
     kill -9 $pid
   else
     echo "${APP_NAME} is not running"
   fi
}

#输出运行状态
status() {
   is_exist
   if [ $? -eq "0" ]; then
     echo "${APP_NAME} is running. Pid is ${pid}"
   else
     echo "${APP_NAME} is not running."
   fi
}

#重启
restart() {
   stop
   start
}

#根据输入参数，选择执行对应方法，不输入则执行使用说明
case "$1" in
   "start")
     start
     ;;
   "stop")
     stop
     ;;
   "status")
     status
     ;;
   "restart")
     restart
     ;;
   *)
     usage
     ;;
esac