#!/usr/bin/env bash
# Drift gate for the committed admin SPA build (D-04). Rebuilds admin/ from
# the committed lockfile into a temporary directory and fails when the result
# differs from modules/boardwalk/dist, the tree the Go binary embeds. After
# changing the SPA, rebuild with `npm --prefix admin run build` and commit the result.
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT"

if [[ ! -d admin/node_modules ]]; then
  npm --prefix admin ci
fi

npm --prefix admin run typecheck

TMP="$(mktemp -d)"
trap 'rm -rf "$TMP"' EXIT

(cd admin && node_modules/.bin/vite build --outDir "$TMP/dist" --emptyOutDir --logLevel warn)

if ! diff -r "$TMP/dist" modules/boardwalk/dist; then
  echo "check-admin-dist: modules/boardwalk/dist is stale; run npm --prefix admin run build and commit modules/boardwalk/dist" >&2
  exit 1
fi
echo "check-admin-dist: modules/boardwalk/dist matches a fresh build"