/**
 * Patch: make touchKeyFreshness() fire-and-forget in inbox-listeners.js.
 *
 * touchKeyFreshness() is non-critical tracking (records lastSeenAt on
 * ap_key_freshness). Under burst AP traffic, 11 parallel awaited upserts
 * compete for MongoDB write locks — profiling shows 8-second delays on
 * this single call while holding up inbox processing.
 *
 * Removing the await means inbox listeners don't block on the tracking
 * write. The .catch(() => {}) mirrors the existing error handling inside
 * the function itself.
 */

import { access, readFile, writeFile } from "node:fs/promises";

const candidates = [
  "node_modules/@rmdes/indiekit-endpoint-activitypub/lib/inbox-listeners.js",
  "node_modules/@indiekit/indiekit/node_modules/@rmdes/indiekit-endpoint-activitypub/lib/inbox-listeners.js",
];

const MARKER = "// [patch] key-freshness-nonblocking";

async function exists(p) {
  try { await access(p); return true; } catch { return false; }
}

let patched = false;
for (const filePath of candidates) {
  if (!(await exists(filePath))) continue;
  let src = await readFile(filePath, "utf8");
  if (src.includes(MARKER)) {
    console.log(`[postinstall] patch-ap-key-freshness-nonblocking: already applied in ${filePath}`);
    patched = true;
    break;
  }
  const before = src;
  // Replace all: await touchKeyFreshness(...) → touchKeyFreshness(...).catch(() => {})
  src = src.replace(
    /await touchKeyFreshness\(([^)]+)\);/g,
    `touchKeyFreshness($1).catch(() => {}); ${MARKER}`,
  );
  const count = (src.match(/key-freshness-nonblocking/g) || []).length;
  if (count === 0) {
    console.log(`[postinstall] patch-ap-key-freshness-nonblocking: target not found in ${filePath}`);
    continue;
  }
  await writeFile(filePath, src, "utf8");
  console.log(`[postinstall] patch-ap-key-freshness-nonblocking: applied to ${count} calls in ${filePath}`);
  patched = true;
  break;
}

if (!patched) {
  console.log("[postinstall] patch-ap-key-freshness-nonblocking: no target file found");
}