#!/bin/ash
# Factorio Installation Script
#
# Server Files: /mnt/server
apk add --no-cache curl tar xz

latest_stable=`curl https://updater.factorio.com/get-available-versions | grep stable | grep -o -E '([0-9]\.[0-9][0-9]\.[0-9][0-9]|[0-9]\.[0-9][0-9]\.[0-9])'`
latest_experimental=`curl https://www.factorio.com/download-headless/experimental | grep -m 1 -o -E '([0-9]\.[0-9][0-9]\.[0-9][0-9]|[0-9]\.[0-9][0-9]\.[0-9])'`

if [ -z "${FACTORIO_VERSION}" ] || [ "${FACTORIO_VERSION}" == "latest" ]; then
  DL_VERSION=$latest_stable
elif [ "${FACTORIO_VERSION}" == "experimental" ]; then
  DL_VERSION=$latest_experimental
else
  DL_VERSION=${FACTORIO_VERSION}
fi

echo -e "\n running 'curl -L https://www.factorio.com/get-download/${DL_VERSION}/headless/linux64 -o factorio-${DL_VERSION}.tar.gz' \n"

cd /mnt/server

curl -L https://www.factorio.com/get-download/${DL_VERSION}/headless/linux64 -o factorio-${DL_VERSION}.tar.gz

tar -xf factorio-${DL_VERSION}.tar.gz --strip-components=1 -C /mnt/server

rm factorio-${DL_VERSION}.tar.gz

if [ -e data/map-gen-settings.json ]; then
    echo "map-gen exists"
else
    echo "copying map-gen default settings"
    mv data/map-gen-settings.example.json data/map-gen-settings.json
fi

if [ -e data/server-settings.json ]; then
    echo "server settings exists"
else
    echo "copying server default settings"
    mv data/server-settings.example.json data/server-settings.json
fi

if [ -e map-settings.json ]; then
    echo "map settings exists"
else
    echo "copying map default settings"
    mv data/map-settings.example.json data/map-settings.json
fi

if [ -e ${SAVE_NAME}.zip ]; then
    echo "save file exists"
else
    ./bin/x64/factorio --create ${SAVE_NAME}
    chmod o+w ${SAVE_NAME}.zip
fi