#!/bin/bash
# steamcmd Base Installation Script
#
# Server Files: /mnt/server
apt update
apt install -y zstd
## just in case someone removed the defaults.
if [[ "${STEAM_USER}" == "" ]] || [[ "${STEAM_PASS}" == "" ]]; then
    echo -e "steam user is not set.\n"
    echo -e "Using anonymous user.\n"
    STEAM_USER=anonymous
    STEAM_PASS=""
    STEAM_AUTH=""
else
    echo -e "user set to ${STEAM_USER}"
fi

## download and install steamcmd
cd /tmp
mkdir -p /mnt/server/steamcmd
curl -sSL -o steamcmd.tar.gz https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz
tar -xzvf steamcmd.tar.gz -C /mnt/server/steamcmd
mkdir -p /mnt/server/steamapps # Fix steamcmd disk write error when this folder is missing
cd /mnt/server/steamcmd

# SteamCMD fails otherwise for some reason, even running as root.
# This is changed at the end of the install process anyways.
chown -R root:root /mnt
export HOME=/mnt/server

## install game using steamcmd
./steamcmd.sh +force_install_dir /mnt/server +login ${STEAM_USER} ${STEAM_PASS} ${STEAM_AUTH} $( [[ "${WINDOWS_INSTALL}" == "1" ]] && printf %s '+@sSteamCmdForcePlatformType windows' ) +app_update ${SRCDS_APPID} $( [[ -z ${SRCDS_BETAID} ]] || printf %s "-beta ${SRCDS_BETAID}" ) $( [[ -z ${SRCDS_BETAPASS} ]] || printf %s "-betapassword ${SRCDS_BETAPASS}" ) ${INSTALL_FLAGS} validate +quit ## other flags may be needed depending on install. looking at you cs 1.6

## set up 32 bit libraries
mkdir -p /mnt/server/.steam/sdk32
cp -v linux32/steamclient.so ../.steam/sdk32/steamclient.so

## set up 64 bit libraries
mkdir -p /mnt/server/.steam/sdk64
cp -v linux64/steamclient.so ../.steam/sdk64/steamclient.so

## download TF2C from website
cd /mnt/server
which unzip
L_V=$(curl -s https://wiki.tf2classic.com/kachemak/versions.json | jq -r '.versions | to_entries | max_by(.key | tonumber) | .value.file') # tf2classic-2.1.3.tar.zst

if [ -z "${GAMEVERSION}" ] || [ "${GAMEVERSION}" == "latest" ]; then
    DOWNLOAD_URL="https://wiki.tf2classic.com/kachemak/$L_V"
else
    DOWNLOAD_URL="https://wiki.tf2classic.com/kachemak/tf2classic-${GAMEVERSION}.tar.zst"
fi


# Check if the URL returns a 404 status code
if curl -s --head "$DOWNLOAD_URL" | head -n 1 | grep "404 Not Found" > /dev/null; then
    echo "URL returned 404. Setting to alternative URL."
    DOWNLOAD_URL="https://wiki.tf2classic.com/kachemak/$L_V"
fi

echo "Downloading tf2classic, This will take some time" 
echo "Download URL is: ${DOWNLOAD_URL}"
curl -sSL -o tf2classic.tar.zst ${DOWNLOAD_URL}

#tar -xf tf2classic.tar.zst

tar --use-compress-program=unzstd -xvf tf2classic.tar.zst
rm -rf tf2classic.tar.zst
## fix issue /w symlink
cd /mnt/server/bin
ln -s vphysics_srv.so vphysics.so
ln -s studiorender_srv.so studiorender.so
ln -s soundemittersystem_srv.so soundemittersystem.so
ln -s shaderapiempty_srv.so shaderapiempty.so
ln -s scenefilecache_srv.so scenefilecache.so
ln -s replay_srv.so replay.so
ln -s materialsystem_srv.so materialsystem.so

cd /mnt/server/tf2classic/bin
## fix server as of 2.0.4 crashing on start
rm -rf server_srv.so
ln -s server.so server_srv.so

## install end
echo "-----------------------------------------"
echo "Installation completed..."
echo "-----------------------------------------"