#!/bin/bash
set -euo pipefail

# BYOND_MAJOR and BYOND_MINOR can be explicitly set, such as in alt_byond_versions.txt
if [ -z "${BYOND_MAJOR+x}" ]; then
  source dependencies.sh
fi

if [ -d "$HOME/BYOND/byond/bin" ] && grep -Fxq "${BYOND_MAJOR}.${BYOND_MINOR}" $HOME/BYOND/version.txt;
then
  echo "Using cached directory."
else
  echo "Setting up BYOND."
  rm -rf "$HOME/BYOND"
  mkdir -p "$HOME/BYOND"
  cd "$HOME/BYOND"
  curl -H "User-Agent: tgstation/1.0 CI Script" "http://www.byond.com/download/build/${BYOND_MAJOR}/${BYOND_MAJOR}.${BYOND_MINOR}_byond_linux.zip" -o byond.zip
  unzip byond.zip
  rm byond.zip
  cd byond
  make here
  echo "$BYOND_MAJOR.$BYOND_MINOR" > "$HOME/BYOND/version.txt"
  cd ~/
fi