#!/bin/bash

# Half-Life Linux dedicated server initscript
# Code by: Tomas Janousek <tomi@nomi.cz>
# This is GPL code.

if [ -z "$HLDS_CONF" ]; then
    . `dirname \`readlink -f "$0"\``/hlds.conf
else
    . $HLDS_CONF
fi

load_conf() {
    unload_conf
    ID=$2
    . $1
    unset ID
}

unload_conf() {
    unset SERVER_CFG EXEC_CFG LIBLIST_GAM HLDS_OPTS PRELOADS
}

update() {
    pushd $GAMEDIR >/dev/null
    ./steam -command update -game $GAME -dir . -username $STEAM_USERNAME -password $STEAM_PASS
    find . -maxdepth 1 -mindepth 1 -! '-(' -name dev -or -name etc -or -name lib '-)' -print0 | xargs -0 chown -R $USER:$USER
    find . -iregex '.*'/$GAME/$GAME'[0-9]+\.cfg' -maxdepth 2 -print0 | xargs -0 chown root:root
    popd >/dev/null
}

start() {
    if [ -f "$GAMEDIR/$GAME/$GAME$1.cfg" ]; then
	if [ -f "$GAMEDIR/$GAME$1.pid" ]; then
	    if [ -d "/proc/`cat $GAMEDIR/$GAME$1.pid`/" ]; then
		echo "This server is already running"
		return
	    else
		rm -f "$GAMEDIR/$GAME$1.pid"
		echo "Deleting pidfile"
	    fi
	fi
	echo "Starting HLDS #$1"
	load_conf "$GAMEDIR/$GAME/$GAME$1.cfg" "$1"
#	strace -f -o $GAME$1.trace \
#
	pushd $GAMEDIR >/dev/null
       	LD_LIBRARY_PATH="." \
	LD_PRELOAD="$DEDTOOLS/hlds/hlds_chroot.so $DEDTOOLS/hlds/hlds_custom_liblist.so $PRELOADS_GLOBAL $PRELOADS" \
	HLDS_USER="$USER" \
	HLDS_LOG="$GAME$1.log" \
	HLDS_LIBLIST_GAM="$LIBLIST_GAM" \
	HLDS_PORT=$[$BASEPORT - 1 + $1] \
       	./hlds_i686 -game $GAME -port $[$BASEPORT - 1 + $1] -pidfile "$GAME$1.pid" $HLDS_GLOBAL_OPTS $HLDS_OPTS +servercfgfile "$SERVER_CFG" +exec "$EXEC_CFG"
	popd >/dev/null
	unload_conf
    else
	echo "This server does not have config"
    fi
}

startall() {
    I=1
    while [ -f "$GAMEDIR/$GAME/$GAME$I.cfg" ]; do
	start $I
	echo "Sleeping 5 seconds"
	sleep 5
	I=$[$I+1]
    done
}

stop() {
    if [ -f "$GAMEDIR/$GAME$1.pid" ]; then
	echo "Stopping HLDS #$1" 
	kill `cat "$GAMEDIR/$GAME$1.pid"`
	rm -f "$GAMEDIR/$GAME$1.pid"
    else
	echo "This server does not seem to be running"
    fi
}

stopall() {
    I=1
    while [ -f "$GAMEDIR/$GAME$I.pid" ]; do
	stop $I
	I=$[$I+1]
    done
}

conf() {
    vim "$GAMEDIR/$GAME/$GAME$1.cfg"
}

check() {
    if $DEDTOOLS/hlds/hlds_check $[$BASEPORT - 1 + $1]; then
	echo "$GAME #$1 does not respond, restarting"
	stop $1 >/dev/null 2>&1
	start $1 >/dev/null 2>&1
    fi
}

checkall() {
    I=1
    while [ -f "$GAMEDIR/$GAME/$GAME$I.cfg" ]; do
	check $I
	I=$[$I+1]
    done
}

case "$1" in
    update)
    update
    ;;

    start)
    start $2
    ;;

    stop)
    stop $2
    ;;

    startall)
    startall
    ;;

    stopall)
    stopall
    ;;

    restartall)
    stopall
    startall
    ;;

    restart)
    stop $2
    start $2
    ;;

    conf)
    conf $2
    ;;

    check)
    check $2
    ;;
    
    checkall)
    checkall
    ;;

    *)
    echo "Usage: $0 {{start|stop|restart|conf|check} <number>|{startall|stopall|restartall|update|checkall}}"
    ;;
esac