#!/bin/bash 

VERSION=$(curl http://files.teamspeak-services.com/releases/server/ | egrep -o '[0-9]+\.[0-9]+\.[0-9]+' | sort | uniq | sort --version-sort --field-separator=. | tail -n1)
LINK="http://files.teamspeak-services.com/releases/server/$VERSION/teamspeak3-server_linux_amd64-$VERSION.tar.bz2"

service_ts3="ts3server serveradmin"
ts3local="/opt/teamspeak/"

mkdir -p $ts3local
if (( $(ps -ef | grep -v grep | grep "$service_ts3" | wc -l) > 0)) 
	then
		alive_ts3=1
	else
		alive_ts3=0
fi


if (alive_ts3=1)
	then
		systemctl stop teamspeak 
fi

if (alive_ts3=0)
	then
		#CREATE BACKUP
		sudo mkdir -p /BACKUP/
		cp -rp /opt/ /BACKUP/opt-$(date +"%d-%m-%Y")/

		#DOWNLOAD NEWER VERSION OF TEAMSPEAK
		wget $LINK --quiet

		#UNTAR AND COPY FILES
		tar -jxf teamspeak3-server_linux_amd*.tar.bz2 

		cp -rp /opt/teamspeak3-server_linux_amd64/CHANGELOG $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/doc $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/ts3server $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/ts3server_minimal_runscript.sh $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/ts3server_startscript.sh $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/sql $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/redist $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/serverquerydocs $ts3local
		cp -rp /opt/teamspeak3-server_linux_amd64/libts3_ssh.so $ts3local

		#REMOVE FILES
		rm -rf teamspeak3-server_linux_amd*.tar.bz2 teamspeak3-server_linux_amd64* 

		#START TEAMSPEAK
		systemctl start teamspeak		

		if (( $(ps -ef | grep -v grep | grep "$service_ts3" | wc -l) > 0))
			then
				echo -e "\e[32m$service_ts3 is running!!!\e[0m"
			else
				echo -e "\e[31m$service_ts3 is not running!!!\e[0m"
				sleep 5
				systemctl start teamspeak
		fi
fi