#!/bin/bash
# Installation Script
#
# Install dependencies
dpkg --add-architecture i386
apt update
apt -y --no-install-recommends install curl jq unzip libstdc++6 ca-certificates libsdl2-2.0-0:i386

## Get latest Nitrox-Mod build
#latest_NitroxMod=$(curl --silent "https://api.github.com/repos/SubnauticaNitrox/Nitrox/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')

#if [ -z "${NITROX_VERSION}" ] || [ "${NITROX_VERSION}" == "latest" ]; then
#  DL_VERSION=$latest_NitroxMod
#else
#  DL_VERSION=${NITROX_VERSION}
#fi

## get release info and download links
GITHUB_PACKAGE="SubnauticaNitrox/Nitrox"
VERSION=${NITROX_VERSION}
MATCH="Nitrox"

LATEST_JSON=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases/latest")
RELEASES=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases")

if [ -z "${VERSION}" ] || [ "${VERSION}" == "latest" ]; then
    DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url | grep -i ${MATCH})
else
    VERSION_CHECK=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .tag_name')
    if [ "${VERSION}" == "${VERSION_CHECK}" ]; then
        DOWNLOAD_URL=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .assets[].browser_download_url' | grep -i ${MATCH})
    else
        echo -e "defaulting to latest release"
        DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url)
    fi
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
cd /mnt/server/steamcmd

chown -R root:root /mnt
export HOME=/mnt/server


## Install game using steamcmd
GUARDCODE="${STEAM_GUARDCODE}"
if [ -z $GUARDCODE ]
then
    echo ""
    echo "### You did not specify a Steam Guardcode"
    echo "### A new one should be send to you shortly"
    echo "### Enter it in the startup-config after this installation is finished and reinstall the Server"
    sleep 10
    timeout 60 ./steamcmd.sh +login ${STEAM_USERNAME} ${STEAM_PASSWORD} +quit
    exit 1
fi

[ ! -d "$HOME/subnautica" ] && mkdir $HOME/subnautica
./steamcmd.sh +set_steam_guard_code ${STEAM_GUARDCODE} +login ${STEAM_USERNAME} ${STEAM_PASSWORD} +@sSteamCmdForcePlatformType windows +force_install_dir $HOME/subnautica +app_update ${APPID} ${EXTRA_FLAGS} validate +quit
status=$?

if [ $status -ne 0 ]
then
    echo ""
    echo "### The Download was not successful"
    echo "### Probably the entered Guardcode was wrong"
    echo "### A new one should be send to you shortly"
    echo "### Enter it in the startup-config after this installation is finished and reinstall the Server"
    sleep 10
    sleep 10
    timeout 30 ./steamcmd.sh +login ${STEAM_USERNAME} ${STEAM_PASSWORD} +quit
    exit 1
fi


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

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

## Download and extract Nitrox
[ -d "$HOME/nitrox" ] && rm -r $HOME/nitrox
mkdir $HOME/nitrox
cd $HOME/nitrox
curl -sL $DOWNLOAD_URL -o Nitrox.zip
unzip $HOME/nitrox/Nitrox.zip


## Create path files to Subnautica Install-Dir. Needed for versions pre 1.6.0
echo "/home/container/subnautica" > $HOME/path.txt

## Create mono registry entry for Subnautica Install-Dir. Needed for versions since 1.6.0
mkdir -p $HOME/.mono/registry/CurrentUser
    cat <<EOT > $HOME/.mono/registry/CurrentUser/values.xml
    <values>
    <value name="SOFTWARE\Nitrox\PreferredGamePath"
    type="string">/home/container/subnautica</value>
    </values>
EOT


## Create config
if [ -e $HOME/server.cfg ]; then
    echo "server settings exists"
else
    echo "writing server default settings"
    cat <<EOT > $HOME/server.cfg
    # Server settings can be changed here
    # Set to true to Cache entities for the whole map on next run. 
    # WARNING! Will make server load take longer on the cache run but players will gain a performance boost when entering new areas.
    CreateFullEntityCache=False
    # Leave blank for a random spawn position
    Seed=
    ServerPort=11000
    # Measured in milliseconds
    SaveInterval=120000
    # Command to run following a successful world save (e.g. .exe, .bat, or PowerShell script). 
    PostSaveCommandPath=
    MaxConnections=100
    InitialSyncTimeout=300000
    DisableConsole=False
    DisableAutoSave=False
    SaveName=world
    ServerPassword=
    AdminPassword=PleaseChangeMe
    # Possible values: SURVIVAL, FREEDOM, HARDCORE, CREATIVE
    GameMode=SURVIVAL
    # Possible values: PROTOBUF, JSON
    SerializerMode=JSON
    # Possible values: NONE, PLAYER, MODERATOR, ADMIN, CONSOLE
    DefaultPlayerPerm=PLAYER
    #
    # Default player stats below here
    DefaultOxygenValue=45
    DefaultMaxOxygenValue=45
    DefaultHealthValue=80
    DefaultHungerValue=50.5
    DefaultThirstValue=90.5
    # Recommended to keep at 0.1f which is the default starting value. If set to 0 then new players are cured by default.
    DefaultInfectionValue=0.1
    # If set to true, the server will try to open port on your router via UPnP
    AutoPortForward=False
EOT
fi