PKG_DIR="."
OUTPUT_DIR="${PKG_DIR}/site"
DEST_DIR=${1:-/data}

if [[ -d "$DEST_DIR" ]]; then
  echo "${DEST_DIR} already exists." 1>&2
  exit 1
fi

# Install mkdocs and dependencies
apt-get update
apt-get install -y python3-pip

pip3 install mkdocs mkdocs-material mkdocs-git-revision-date-localized-plugin || exit 1

mkdocs build || exit 1

if [[ ! -d "$OUTPUT_DIR" ]]; then
  echo "Missing output directory: $OUTPUT_DIR" 1>&2
  exit 1
fi

mv "$OUTPUT_DIR" "$DEST_DIR"