#!/usr/bin/env node
// 🤖 Append one entry to a ledger stream (issue #1224) — the generic CLI over
// tools/ledgerstream.mjs. The payload is JSON on stdin; the chain (prev-hash
// fingerprints) is maintained for you.
//
//   echo '{"note":"hello"}' | node tools/ledger-append.mjs <ledger> --writer "Full Name"
//
// Reads need no credentials (the bucket is public-read); the write uses the
// ambient AWS profile — the scoped status-ledger-writer key or your own.
// Verify any stream end-to-end with tools/ledger-verify.mjs.
import { append } from "./ledgerstream.mjs";

const args = process.argv.slice(2);
const ledger = args.find((a) => !a.startsWith("--"));
const wi = args.indexOf("--writer");
const writer = wi >= 0 ? args[wi + 1] : null;
if (!ledger || !writer || !/^[a-z][a-z0-9-]*$/.test(ledger)) {
  console.error('usage: echo \'{"…"}\' | node tools/ledger-append.mjs <ledger> --writer "Full Name"');
  process.exit(1);
}

const stdin = [];
for await (const chunk of process.stdin) stdin.push(chunk);
const payload = JSON.parse(Buffer.concat(stdin).toString("utf8"));

const head = await append(ledger, writer, new Date().toISOString(), payload);
console.log(ledger + ": entry " + head.count + " appended, head " + head.head_sha256.slice(0, 12) + "…");