#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
INSTALL_DIR="${INSTALL_DIR:-$ROOT_DIR/.local/microdicom}"

usage() {
  cat <<'EOF'
Usage:
  scripts/setup-microdicom.sh --source-dir DIR [--install-dir DIR]

Behavior:
  - Copies a prepared MicroDicom directory into a local ignored directory.
  - Expected source contents include files like AUTORUN.INF, RUN.BAT, and MICROD/.
EOF
}

SOURCE_DIR=""
while [[ $# -gt 0 ]]; do
  case "$1" in
    --source-dir)
      SOURCE_DIR="${2:?missing value for --source-dir}"
      shift 2
      ;;
    --install-dir)
      INSTALL_DIR="${2:?missing value for --install-dir}"
      shift 2
      ;;
    -h|--help)
      usage
      exit 0
      ;;
    *)
      echo "Unknown argument: $1" >&2
      usage >&2
      exit 1
      ;;
  esac
done

[[ -n "$SOURCE_DIR" ]] || { echo "--source-dir is required" >&2; exit 1; }
[[ -d "$SOURCE_DIR" ]] || { echo "source directory does not exist: $SOURCE_DIR" >&2; exit 1; }
[[ -f "$SOURCE_DIR/AUTORUN.INF" ]] || { echo "missing AUTORUN.INF in source directory" >&2; exit 1; }
[[ -d "$SOURCE_DIR/MICROD" ]] || { echo "missing MICROD/ in source directory" >&2; exit 1; }

rm -rf "$INSTALL_DIR"
mkdir -p "$INSTALL_DIR"
cp -a "$SOURCE_DIR"/. "$INSTALL_DIR"/

echo "installed MicroDicom assets -> $INSTALL_DIR"
cat <<EOF

Done.
Set this config value:

iso:
  microdicom_path: "$INSTALL_DIR"
EOF