// One-off: merge workflow localization output into messages/{fa,en}.json under "auto",
// then report any auto.* namespaces referenced in src/ but missing from messages (orphans
// from failed batches that edited files without returning keys).
const fs = require("fs");
const path = require("path");
const cp = require("child_process");

const ROOT = path.resolve(__dirname, "..");
const outFile = process.argv[2];
if (!outFile) { console.error("usage: node merge-i18n.js <workflow-output-file>"); process.exit(1); }

// 1. Extract the result JSON from the workflow output file (whole file is valid JSON).
const raw = fs.readFileSync(outFile, "utf8");
const parsed = JSON.parse(raw);
const result = parsed.result || parsed;
const localized = result.localized || [];
console.log(`workflow result: localized=${localized.length} skipped=${(result.skipped||[]).length}`);

// 2. Merge into messages, preserving existing keys; create "auto" namespace.
for (const locale of ["fa", "en"]) {
  const file = path.join(ROOT, "messages", `${locale}.json`);
  const msg = JSON.parse(fs.readFileSync(file, "utf8"));
  msg.auto = msg.auto || {};
  let added = 0;
  for (const item of localized) {
    if (!item.pathKey) continue;
    const payload = locale === "fa" ? item.fa : item.en;
    if (payload && typeof payload === "object") { msg.auto[item.pathKey] = payload; added++; }
  }
  fs.writeFileSync(file, JSON.stringify(msg, null, 2) + "\n");
  console.log(`${locale}.json: merged ${added} namespaces (auto.* total=${Object.keys(msg.auto).length})`);
}

// 3. Find auto.* namespaces referenced in src but missing from merged en.json → orphans.
const en = JSON.parse(fs.readFileSync(path.join(ROOT, "messages", "en.json"), "utf8"));
const present = new Set(Object.keys(en.auto || {}));
const grep = cp.spawnSync(
  "grep",
  ["-rhoE", "(useTranslations|getTranslations)\\(\"auto\\.[a-zA-Z0-9]+\"", path.join(ROOT, "src")],
  { encoding: "utf8" }
);
const referenced = new Set();
for (const m of (grep.stdout || "").matchAll(/auto\.([a-zA-Z0-9]+)/g)) referenced.add(m[1]);
const orphans = [...referenced].filter((ns) => !present.has(ns));
console.log(`\nreferenced auto.* namespaces: ${referenced.size}`);
console.log(`ORPHANS (referenced but missing keys): ${orphans.length}`);
orphans.forEach((o) => console.log("  - auto." + o));