#!/bin/bash
# Collection of scripts to deploy a server hosting several open-source games
# Copyright (C) 2022  Jarno van der Kolk
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

set -e

if [ -e /etc/systemd/system/fteqw.service ]; then
  systemctl stop fteqw
fi

# MAPS: https://maps.rcmd.org/quake1/
# GAMEDATA: https://github.com/MissLavender-LQ/LibreQuake

# Install FTEQW
mkdir /opt/fteqw -p
curl --location 'https://www.fteqw.org/dl/fteqw-sv_linux64.zip' > /opt/fteqw/fteqw-sv_linux64.zip
unzip -o -d /opt/fteqw /opt/fteqw/fteqw-sv_linux64.zip
rm /opt/fteqw/fteqw-sv_linux64.zip /opt/fteqw/readme.txt

git clone --depth=1 https://github.com/MissLavender-LQ/LibreQuake.git ${TMPDIR:-/tmp}/LibreQuake
if [ -d /opt/fteqw/lq1 ]; then
  rm -rf /opt/fteqw/lq1
fi
mv ${TMPDIR:-/tmp}/LibreQuake/lq1 /opt/fteqw
rm -rf ${TMPDIR:-/tmp}/LibreQuake

# Compile the maps
curl --location 'https://github.com/ericwa/ericw-tools/releases/download/2.0.0-alpha6/ericw-tools-2.0.0-alpha6-Linux.zip' > /tmp/ericw-tools.zip
unzip -o -d ${TMPDIR:-/tmp}/ericw-tools ${TMPDIR:-/tmp}/ericw-tools.zip
rm /tmp/ericw-tools.zip

cd /opt/fteqw/lq1/maps
./make.sh -m QBSP_PATH="/tmp/ericw-tools/qbsp" LIGHT_PATH="/tmp/ericw-tools/light" VIS_PATH="/tmp/ericw-tools//vis"
cd -
rm -rf /tmp/ericw-tools

# Compile progs.dat
curl --location 'https://www.fteqcc.org/dl/fteqcc_linux64.zip' > /opt/fteqw/ftecc_linux64.zip
unzip -o -d /opt/fteqw /opt/fteqw/ftecc_linux64.zip fteqcc64
rm /opt/fteqw/ftecc_linux64.zip

mkdir -p ${TMPDIR:-/tmp}/progs
git clone --depth=1 https://github.com/fte-team/fteqw.git ${TMPDIR:-/tmp}/progs/fteqw
cd ${TMPDIR:-/tmp}/progs/fteqw/quakec/basemod
/opt/fteqw/fteqcc64
cp qwprogs.dat /opt/fteqw/lq1
cd -
rm -rf ${TMPDIR:-/tmp}/progs

if [ -e /opt/fteqw/lq1/maplist.cfg ]; then
  ## Delete the current maplist.cfg file so that there is not double (or more) entries
  rm /opt/fteqw/lq1/maplist.cfg
fi

## Generate the map list
cd /opt/fteqw/lq1/maps
declare -a mapfiles=(lqdm*.bsp)
for (( i = 0; i < ${#mapfiles[*]}; ++ i )); do
 ## Need to remove the .bsp from map name
 echo serverinfo \"$(basename --suffix=.bsp "${mapfiles[$i-1]}")\" \"$(basename --suffix=.bsp "${mapfiles[$i]}")\" >> /opt/fteqw/lq1/maplist.cfg
done
cd -

# Configuration based on https://gist.github.com/kwadroke/fa978290d86a606de3875fa853d79334
cat > /opt/fteqw/lq1/autoexec.cfg <<EOF
sv_public "0"
sv_antilag "2"
sv_nqplayerphysics "0"
allow_download "1"
maxclients "32"
sv_motd1 "Welcome to the onFOSS server!"
admin_password "${systempassword}"
timelimit "10"
deathmatch "1"
fraglimit "20"
pausable "0"
map "$(basename --suffix=.bsp "${mapfiles[0]}")"
exec maplist.cfg
EOF

# Create SystemD unit
cat > /etc/systemd/system/fteqw.service <<EOF
[Unit]
Description=FTEQW server
After=network.target

[Service]
ExecStart=/opt/fteqw/fteqw-sv64
Restart=on-failure
User=${systemuser}

[Install]
WantedBy=multi-user.target
EOF


systemctl daemon-reload
systemctl enable --now fteqw.service

# Add firewall rules
firewall-cmd --zone=public --add-port=27500/udp --permanent