#!/bin/sh -x

set -e

SAVES=/factorio/saves
CONFIG=/factorio/config

mkdir -p $SAVES
mkdir -p /factorio/mods
mkdir -p $CONFIG

if [ ! -f $CONFIG/rconpw ]; then
  echo $(pwgen 15 1) > $CONFIG/rconpw
fi

if [ ! -f $CONFIG/server-settings.json ]; then
  cp /opt/factorio/data/server-settings.example.json $CONFIG/server-settings.json
fi

if [ ! -f $CONFIG/map-gen-settings.json ]; then
  cp /opt/factorio/data/map-gen-settings.example.json $CONFIG/map-gen-settings.json
fi

if [ ! -f $CONFIG/map-settings.json ]; then
  cp /opt/factorio/data/map-settings.example.json $CONFIG/map-settings.json
fi

if ! find -L $SAVES -iname \*.zip -mindepth 1 -print | grep -q .; then
  /opt/factorio/bin/x64/factorio \
    --create $SAVES/_autosave1.zip  \
    --map-gen-settings $CONFIG/map-gen-settings.json \
    --map-settings $CONFIG/map-settings.json
fi

exec /opt/factorio/bin/x64/factorio \
  --port $PORT \
  --start-server-load-latest \
  --server-settings $CONFIG/server-settings.json \
  --server-whitelist $CONFIG/server-whitelist.json \
  --server-banlist $CONFIG/server-banlist.json \
  --rcon-port $RCON_PORT \
  --rcon-password "$(cat $CONFIG/rconpw)" \
  --server-id /factorio/config/server-id.json