#!/bin/bash

basedir=""

#check system,This script must be run on CentOS/RHEL only.
############################################################################
if [ ! -f /etc/redhat-release ]; then
    echo "[ERROR]: Sorry, this script is for CentOS/RHEL only."
    exit 1
fi
#check basedir
#############################################################################
if test -z "$basedir"
then
  basedir=/usr/local/mysqlmtop
else
  basedir="$basedir"
fi

arg=$1
mtop_process=`ps -ef|grep mtop |grep -v grep|wc -l`
case "$arg" in
  'status')
    #check mtop status
    if [ $mtop_process -ge "5" ];then
       echo "mysql mtop is run!"
    else
       echo "mysql mtop is not run!"
    fi
  ;;

  'start')
    #start mtop
    if [ $mtop_process -ge "5" ];then
       echo "mysql mtop is already run!"
    else
       cd $basedir && nohup ./mtopd.py & > /dev/null 2>&1
       sleep 1
       mtop_process=`ps -ef|grep mtop |grep -v grep|wc -l`
       if [ $mtop_process -ge "5" ];then
          echo "mysql mtop start success!"
       else
          echo "mysql mtop start fail!"
       fi
    fi
  ;;

  'stop')
    #stop mtop
    if [ $mtop_process -le "5" ];then
       echo "mysql mtop is not run..."
    else
       ps -ef |grep -i -E "mtopctl|mtopd.py"|grep -v -E "vi|grep"|awk '{print $2}' |while read line; do kill $line; echo "mtop processes id $line been stop"; done 
    fi
  ;;

  '--help')
    #for help
    echo "mysql mtop help:"
    echo "support-site:www.mtop.cc  www.ruzuojun.com"
    echo "===================================================================="
    echo "start        Start mysql mtop monitor server; Command: #mtopctl start"
    echo "stop         Stop mysql mtop monitor server; Command: #mtopctl stop"
    echo "status       Check mysql mtop monitor run status; Command: #mtopctl status"
  ;;
    *)
        echo "Please input  --help to read the help info."
    ;;

esac

exit 0