#!/usr/bin/env bash

save_name="default"  # Set this to the name of your save file.

# Don't change this unless you know what you're doing.
# Set this to the custom parameters you want the --create command to use.
extra_params_create=""

# Don't change this unless you know what you're doing.
# Set this to the custom parameters you want the --start_server command to use.
extra_params_start_server=""

# Retrieves the script's directory and cd's into it.
script_dir="$(cd "$(dirname "$0")" && pwd)"
cd ${script_dir}

# Check if the current directory is inside a Git repository.
if [ -d .git ] || git rev-parse --is-inside-work-tree > /dev/null 2>&1 ; then
    # Pull updated scripts from CoastalCommits.
    git pull
else
    # The current directory is not part of a Git repository.
    echo "WARNING: This directory is not a Git repository. Script updates will not be automatically fetched."
fi

# This handles automatically updating the Factorio binary.
wget https://factorio.com/get-download/stable/headless/linux64 -O factorio_headless.tar.xz
tar -xf factorio_headless.tar.xz --strip-components=1 --overwrite
rm -f factorio_headless.tar.xz

# This checks if the ./saves/$save_name.zip save file exists or not...
if [ ! -f "./saves/${save_name}.zip" ]; then
    # ...if not, create the save file
    ./bin/x64/factorio ${extra_params_create} --create "./saves/${save_name}.zip"
fi

# This creates a byobu session that starts the server.
byobu new-session -d -s factorio "./bin/x64/factorio ${extra_params_start_server} --start-server ./saves/${save_name}.zip"

# This attaches the current terminal to the byobu session.
# Comment this out if you don't want this functionality.
byobu attach -t factorio