#! /bin/bash
#
# Start the Counter-Strike dedicated server.
#
# AUTHORS :
#
# Julien Escario ( pandemik@azilog.net )
# &
# Cedric Rochat ( crochat@younics.org )
# &
# Cmdr._Firewalker ( cmdr._firewalker@web.de )
#
# ===========================================
#
# What you need:
#
# Linux :)
# awk
# screen
# the hlds_l & cstrike files (obtainable via steam)
#
# How to use:
#
# Edit the CS_USER-Var to the user running your cs-servers
# Edit the DIR-Var to fit your system (just contains the path to the dir that contains hlds_run)
# Edit the PARAMS-Var to fit your needs
# - standard is startup as internet server
# if you use multiple scripts on one system you should change the NAME-var (otherwise  
#   all will be stopped if you run the script with "stop", and status will be useless)
#
# When this is done, copy the file to /etc/rc.d/init.d (or whereever your system stores the
# scripts for starting the services) and set the execute permission.
# Now you can link the script to your runlevel-dir, here's an example for runlevel 3:
# ln -s /etc/rc.d/init.d/hlds /etc/rc.d/rc3.d/S90hlds
# ln -s /etc/rc.d/init.d/hlds /etc/rc.d/rc3.d/K50hlds
# or use update-rc.d if you got a system using that tool (like Debian, see manpage)
#
# Or use it manually like:
# ./hlds start
# ./hlds stop
#
# To see the server-console start the script with the parameter "watch".
#
# DOC by jwm (jwm@counter-strike.de)

# !!!!!!!!!!!!!! CHANGE THIS TO THE USER YOU USE FOR YOUR SERVER !!!!!!!!!!!!!!!
CS_USER=csserveruser

PATH=/bin:/usr/bin:/sbin:/usr/sbin

# # DON'T FORGET TO CHANGE THE PATH TO YOUR NEEDS!
DIR=/hlds

DAEMON=hlds_run

# LAN server:
# PARAMS="-game cstrike -nomaster -insecure +sv_lan 1 +maxplayers 16 +map de_dust"
# Internet server:
PARAMS="-game cstrike +map de_dust +maxplayers 12 -port 27015"

NAME=csserver
DESC="CS dedicated server"

# No edits (should be) necessary beyond this line

if [ ! -x `which awk` ]; then echo "You need awk for this script"; exit 1; fi
if [ ! -x `which screen` ]; then echo "You need screen (the program, moron!) for this script"; exit 1; fi

if [ `whoami` = root ]
then
 usagetype=root
else
 usagetype=nonroot
fi

start() {
   if [ ! -d $DIR ]; then echo " ... No such directory: $DIR!";  exit 1; fi
   if [ ! -x $DIR/$DAEMON ]; then echo "$DIR/$DAEMON does not exist or is not executable!"; exit 1; fi
   if status; then echo " ... $DESC: $NAME is already running!"; exit 1; fi

   case "$usagetype" in
   root)
    su - $CS_USER -c "cd $DIR ; screen -AmdS $NAME ./$DAEMON $PARAMS"
   ;;
   nonroot)
    cd $DIR ; screen -AmdS $NAME ./$DAEMON $PARAMS
   ;;
   esac

}

stop () {
   if ! status; then echo " ... $DESC $NAME could not be found. Probably not running."; exit 1; fi

   case "$usagetype" in
   root)
    tmp=$(su - $CS_USER -c "screen -ls" | awk -F . "\$2 ~ /^$NAME[[:space:]].*/ {print \$1}" | awk '{print $1}')
    su - $CS_USER -c "screen -r $tmp -X quit"
   ;;
   nonroot)
    screen -r $(screen -ls | awk -F . "\$2 ~ /^$NAME[[:space:]].*/ {print \$1}" | awk '{print $1}') -X quit
   ;;
   esac
}

status () {
   case "$usagetype" in
   root)
    su - $CS_USER -c "screen -ls" | grep [.]$NAME[[:space:]] > /dev/null
   ;;
   nonroot)
    screen -ls | grep [.]$NAME[[:space:]] > /dev/null
   ;;
   esac
}

watch () {
   if ! status; then echo "$DESC $NAME could not be found. Probably not running."; exit 1; fi

   case "$usagetype" in
   root)
    tmp=$(su - $CS_USER -c "screen -ls" | awk -F . "\$2 ~ /^$NAME[[:space:]].*/ {print \$1}" | awk '{print $1}')
    su - $CS_USER -c "screen -r $tmp"
   ;;
   nonroot)
    screen -r $(screen -ls | awk -F . "\$2 ~ /^$NAME[[:space:]].*/ {print \$1}" | awk '{print $1}')
   ;;
   esac
}

case "$1" in
 start)
  echo "Starting $DESC: $NAME"
  start
  echo " ... done."
 ;;

 stop)
  echo "Stopping $DESC: $NAME"
  stop
  echo " ... done."
 ;;

 restart)
  echo "Restarting $DESC: $NAME"
  status && stop
  start
  echo " ... done."
 ;;

 status)
  if status
  then echo "$DESC: $NAME is UP" 
  else echo "$DESC: $NAME is DOWN"
  fi
 ;;
 watch)
  watch
 ;;

 *)
   echo "Usage: $0 {start|stop|status|restart|watch}\nWhile watching press ctrl-a, ctrl-d to stop watching without stopping the server."
   exit 1
   ;;

esac


exit 0