---
// Which commit this build came from, in margin space: one short id, and
// nothing else. The site has no live personal data server to read a real
// record feed from (see plan/site.md on the origin problem this build sits
// on top of), and `git log` is the one real stream a static build has — but
// a commit *subject* is prose written for a reviewer, not for the marketing
// origin, so only the id ships. If git is unavailable for any reason (no
// `.git`, no `git` binary) this renders nothing — never a fabricated
// substitute.
import { execSync } from "node:child_process";

function readCommit(): string {
  try {
    const repoRoot = new URL("../../..", import.meta.url);
    return execSync("git rev-parse --short HEAD", {
      cwd: repoRoot,
      encoding: "utf8",
    }).trim();
  } catch {
    return "";
  }
}

const commit = readCommit();
---
{commit && (
  <p class="build-stamp"><code>{commit}</code></p>
)}

<style>
  .build-stamp {
    position: fixed;
    right: 0;
    bottom: 0;
    margin: 0;
    padding: 8px 10px;
    font-size: 11px;
    color: var(--ink-dim);
    pointer-events: none;
  }
  .build-stamp code {
    color: var(--accent);
    opacity: 0.8;
  }
  @media (max-width: 900px) {
    .build-stamp { display: none; }
  }
</style>