#!/bin/sh
# 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

echo "Installing SuperTuxKart ${stk_version}"

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

if [ -z ${stk_version} ] || [ "${stk_version}" = "latest" ]; then
  stk_version=$(curl -s https://api.github.com/repos/supertuxkart/stk-code/releases/latest | jq -r '.["tag_name"]')
fi

# Install SuperTuxKart
stk_dir="/opt/SuperTuxKart-${stk_version}"
mkdir -p ${stk_dir}
curl --location "https://github.com/supertuxkart/stk-code/releases/download/${stk_version}/SuperTuxKart-${stk_version}-linux-x86_64.tar.xz" | tar --extract --xz --no-same-owner --strip-components=1 --directory=${stk_dir}
ln -s ${stk_dir}/bin/supertuxkart /usr/games/supertuxkart

# Configuration
cp $(dirname $0)/../configs/supertuxkart.xml /etc/supertuxkart.xml

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

[Service]
ExecStart=${stk_dir}/run_game.sh --server-config=/etc/supertuxkart.xml --lan-server=onFOSS
Restart=on-failure
User=${systemuser}

[Install]
WantedBy=multi-user.target
EOF

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

# Add firewall rules
firewall-cmd --zone=public --add-port=2757/udp --permanent
firewall-cmd --zone=public --add-port=2759/udp --permanent