#!/bin/bash

function fail {
	# Write to stderr
	echo "ERROR: $@" >&2
	exit 1
}

# what are we trying to install?
game_nm="DST"
game_id=343050

DST_SERVER_DIR=${DST_SERVER_DIR:-'server'}
dontstarve_dir="$HOME/.klei/DoNotStarveTogether"

# install game to this directory
installdir=/home/steam/games/$game_nm

# if path does not exist, create it
mkdir -p $installdir

if [[ -w $installdir ]] # can we write into the directory?
then
	# Install or update the game in /home/steam/games/[game name]
	/opt/steamcmd/steamcmd.sh \
		+login anonymous \
		+force_install_dir $installdir \
		+app_update $game_id validate \
		+quit
else
	# install dir maybe mounted read-only, simply
	# skip installing/updating and inform the user.
	echo "Skipped game installation."
fi

# if game dir does not exist, create it
mkdir -p ${dontstarve_dir}/${DST_SERVER_DIR}

if [[ ! -w ${dontstarve_dir}/${DST_SERVER_DIR} ]]
then
	fail "Not allowed to write to game dir as user $(id -u)"
fi

if [[ ! -f ${dontstarve_dir}/${DST_SERVER_DIR}/cluster_token.txt ]]
then
	mkdir -p ${dontstarve_dir}/${DST_SERVER_DIR}
	echo "${DST_CLUSTER_TOKEN}" > ${dontstarve_dir}/${DST_SERVER_DIR}/cluster_token.txt
fi

if [[ ! -f ${dontstarve_dir}/${DST_SERVER_DIR}/cluster.ini ]]
then
	mkdir -p ${dontstarve_dir}/${DST_SERVER_DIR}
	cat <<- EOF > ${dontstarve_dir}/${DST_SERVER_DIR}/cluster.ini
	[GAMEPLAY]
	game_mode = ${DST_GAME_MODE}
	max_players = ${DST_MAX_PLAYERS}
	pvp = ${DST_PVP}
	pause_when_empty = ${DST_}
	
	[NETWORK]
	cluster_description = ${DST_CLUSTER_DESCRIPTION}
	cluster_name = ${DST_CLUSTER_NAME}
	cluster_intention = ${DST_CLUSTER_INTENTION}
	cluster_password = ${DST_CLUSTER_PASSWORD}
	
	[MISC]
	console_enabled = true
	
	[SHARD]
	shard_enabled = true
	bind_ip = 127.0.0.1
	master_ip = 127.0.0.1
	master_port = 10889
	cluster_key = paul
	EOF
fi

if [[ ! -f ${dontstarve_dir}/${DST_SERVER_DIR}/Master/server.ini ]]
then
	mkdir -p ${dontstarve_dir}/${DST_SERVER_DIR}/Master
	cat <<- EOF > ${dontstarve_dir}/${DST_SERVER_DIR}/Master/server.ini
	[NETWORK]
	server_port = 11000

	[SHARD]
	is_master = true

	[STEAM]
	master_server_port = 27018
	authentication_port = 8768

	[ACCOUNT]
	encode_user_path = true
	EOF
fi

if [[ ! -f ${dontstarve_dir}/${DST_SERVER_DIR}/Caves/server.ini ]]
then
	mkdir -p ${dontstarve_dir}/${DST_SERVER_DIR}/Caves
	cat <<- EOF > ${dontstarve_dir}/${DST_SERVER_DIR}/Caves/server.ini
	[NETWORK]
	server_port = 11001
	
	[SHARD]
	is_master = false
	name = Caves
	id = 2521590582
	
	[STEAM]
	master_server_port = 27019
	authentication_port = 8769
	
	[ACCOUNT]
	encode_user_path = true
	EOF
fi


#mod support
if [[ ! -z "$DST_MODS" ]]
then
	echo $DST_MODS |sed -e "s/ /\n/g" |sed -e "s/^/ServerModSetup\(\"/g"| sed -e "s/$/\"\)/g" > $installdir/mods/dedicated_server_mods_setup.lua
	echo "return {" > ${dontstarve_dir}/${DST_SERVER_DIR}/Master/modoverrides.lua
	echo "return {" > ${dontstarve_dir}/${DST_SERVER_DIR}/Caves/modoverrides.lua

	echo $DST_MODS |sed -e "s/ /\n/g" |sed -e "s/^/\[\"workshop-/g"| sed -e "s/$/\"\] \= \{ enabled \= true \}\,/g" >> ${dontstarve_dir}/${DST_SERVER_DIR}/Master/modoverrides.lua
	echo $DST_MODS |sed -e "s/ /\n/g" |sed -e "s/^/\[\"workshop-/g"| sed -e "s/$/\"\] \= \{ enabled \= true \}\,/g" >> ${dontstarve_dir}/${DST_SERVER_DIR}/Caves/modoverrides.lua
	echo "}" >> ${dontstarve_dir}/${DST_SERVER_DIR}/Master/modoverrides.lua
	echo "}" >> ${dontstarve_dir}/${DST_SERVER_DIR}/Caves/modoverrides.lua
fi

# run the next commands from the installdir
cd $installdir/bin

run_shared=(./dontstarve_dedicated_server_nullrenderer)
run_shared+=(-console)
run_shared+=(-cluster "$DST_SERVER_DIR")
run_shared+=(-monitor_parent_process $$)

"${run_shared[@]}" -shard Caves  | sed 's/^/Caves:  /' &
"${run_shared[@]}" -shard Master | sed 's/^/Master: /'