#!/usr/bin/env bash
set -euo pipefail
# Deterministic hashing helper for DevPortal SDK snippet packs and offline bundle artefacts.
# Usage:
#   SNIPPET_DIR=src/DevPortal/StellaOps.DevPortal.Site/snippets \
#   OUT_SHA=src/DevPortal/StellaOps.DevPortal.Site/SHA256SUMS.devportal-stubs \
#   tools/devportal/hash-snippets.sh

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
SNIPPET_DIR="${SNIPPET_DIR:-$ROOT/src/DevPortal/StellaOps.DevPortal.Site/snippets}"
OUT_SHA="${OUT_SHA:-$ROOT/src/DevPortal/StellaOps.DevPortal.Site/SHA256SUMS.devportal-stubs}"

if [[ ! -d "$SNIPPET_DIR" ]]; then
  echo "Snippet dir not found: $SNIPPET_DIR" >&2
  exit 1
fi

mkdir -p "$(dirname "$OUT_SHA")"
: > "$OUT_SHA"

cd "$SNIPPET_DIR"
find . -type f -print0 | sort -z | while IFS= read -r -d '' f; do
  sha=$(sha256sum "$f" | cut -d' ' -f1)
  printf "%s  %s\n" "$sha" "${SNIPPET_DIR#$ROOT/}/$f" >> "$OUT_SHA"
  echo "hashed $f"
done

echo "Hashes written to $OUT_SHA"