#!/bin/bash

function write_config {
 echo "$1"'='"$2" >> $CONFIG
}

#value key alt
function write_config_if_else {
 	if [ ! -z "$1" ]; then
		write_config "$2" "$1"
 	else
		if [ ! -z "$3" ]; then write_config "$2" "$3"; fi
 	fi
}

function wait_for_mysql {
	if [ ! -z "$TS3DB_TYPE" ] && [ "$TS3DB_TYPE" == "MYSQL" ]; then
		PORT=3306
		if [ ! -z "$TS3DB_PORT" ] ; then PORT="$TS3DB_PORT" ;fi
		while ! nc -q 1 $TS3DB_HOST $PORT < /dev/null; do sleep 3; done
	fi
	sleep 3
}

function main_config {
	CONFIG="$CONF_DIR/ts3server.ini"
	cp /tpl/$(basename $CONFIG) $CONFIG
	if [ ! -z "$TS3DB_TYPE" ] && [ "$TS3DB_TYPE" == "MYSQL" ]; then
		write_config 'dbplugin' 'ts3db_mysql'
		write_config 'dbpluginparameter' "$CONF_DIR/ts3db_mysql.ini"
		write_config 'dbsqlpath' "sql/"
		write_config 'dbsqlcreatepath' "create_mysql/"
	fi
}

function db_config {
	CONFIG="$CONF_DIR/ts3db_mysql.ini"
	if [ ! -z "$TS3DB_TYPE" ] && [ "$TS3DB_TYPE" == "MYSQL" ]; then
		cp /tpl/$(basename $CONFIG) $CONFIG
		write_config_if_else $TS3DB_HOST 'localhost' 'host'
		write_config_if_else $TS3DB_PORT '3306' 'port'
		write_config_if_else $TS3DB_USER 'root' 'username'
		write_config_if_else $TS3DB_PASS '' 'password'
		write_config_if_else $TS3DB_NAME 'ts3' 'database'
	fi
}

SERVER_DIR=/opt/teamspeak3
RUNSCRIPT=$SERVER_DIR/ts3server_minimal_runscript.sh
CONF_DIR=$SERVER_DIR

if [ ! -f "$RUNSCRIPT" ]; then
	echo Starting Initialization
        URL=http://dl.4players.de/ts/releases/$TS_VERSION/teamspeak3-server_linux_$ARCH-$TS_VERSION.tar.bz2
	TMPFILE=/tmp/server.tar.bz2
	wget $URL -O $TMPFILE
	if [ ! -z "$CHECKSUM" ]; then 
		ACTUAL=$(sha256sum $TMPFILE | cut -d " " -f1)
		if [ "$ACTUAL" != "$CHECKSUM" ]; then
			echo "Checksum mismatch!"
			echo "set CHECKSUM to \"\" to ignore or"
			echo "update CHECKSUM according to https://www.teamspeak.com/downloads"
			exit 1
		fi
	fi
	tar -xjvf $TMPFILE -C /opt
	mv /opt/teamspeak3-server_linux_$ARCH/* /opt/teamspeak3/
	rm -rf /opt/teamspeak3-server_linux_$ARCH
	rm -f $TMPFILE
	main_config
	db_config
 
fi
wait_for_mysql
$RUNSCRIPT inifile=$CONF_DIR/ts3server.ini