#!/usr/bin/env bash
set -euo pipefail
# Allow CI to fall back to a deterministic test key when MIRROR_SIGN_KEY_B64 is unset,
# but forbid this on release/tag builds when REQUIRE_PROD_SIGNING=1.
# Throwaway dev key (Ed25519) generated 2025-11-23; matches the value documented in
# docs/modules/mirror/signing-runbook.md. Safe for non-production smoke only.
DEFAULT_TEST_KEY_B64="LS0tLS1CRUdJTiBQUklWQVRFIEtFWS0tLS0tCk1DNENBUUF3QlFZREsyVndCQ0lFSURqb3pDRVdKVVFUdW1xZ2gyRmZXcVBaemlQbkdaSzRvOFZRTThGYkZCSEcKLS0tLS1FTkQgUFJJVkFURSBLRVktLS0tLQo="
if [[ -z "${MIRROR_SIGN_KEY_B64:-}" ]]; then
  if [[ "${REQUIRE_PROD_SIGNING:-0}" == "1" ]]; then
    echo "[error] MIRROR_SIGN_KEY_B64 is required for production signing; refusing to use test key." >&2
    exit 1
  fi
  echo "[warn] MIRROR_SIGN_KEY_B64 not set; using embedded test key (non-production) for CI signing" >&2
  MIRROR_SIGN_KEY_B64="$DEFAULT_TEST_KEY_B64"
fi
ROOT=$(cd "$(dirname "$0")/../.." && pwd)
KEYDIR="$ROOT/out/mirror/thin/tuf/keys"
mkdir -p "$KEYDIR"
KEYFILE="$KEYDIR/ci-ed25519.pem"
printf "%s" "$MIRROR_SIGN_KEY_B64" | base64 -d > "$KEYFILE"
chmod 600 "$KEYFILE"
# Export public key for TUF keyid calculation
openssl pkey -in "$KEYFILE" -pubout -out "$KEYDIR/ci-ed25519.pub" >/dev/null 2>&1
STAGE=${STAGE:-$ROOT/out/mirror/thin/stage-v1}
CREATED=${CREATED:-$(date -u +%Y-%m-%dT%H:%M:%SZ)}
SIGN_KEY="$KEYFILE" STAGE="$STAGE" CREATED="$CREATED" "$ROOT/src/Mirror/StellaOps.Mirror.Creator/make-thin-v1.sh"