import amqp from "amqplib";

const PORT = process.argv[2];
const MPORT = process.argv[3];
const B = `http://127.0.0.1:${MPORT}`;
const AUTH = "Basic " + Buffer.from("guest:guest").toString("base64");

async function api(method, path, body) {
  const r = await fetch(B + path, {
    method,
    headers: { "content-type": "application/json", authorization: AUTH },
    body: body ? JSON.stringify(body) : undefined,
  });
  if (r.status >= 300 && r.status !== 404) throw new Error(`${method} ${path} -> ${r.status}`);
}

await api("PUT", "/api/exchanges/%2f/mesh.events.dead", { type: "topic", durable: true });
await api("PUT", "/api/users/al", { password: "s", tags: "" });

const Q = "anchor.al.events";
const D = "mesh.events.dead";
const q = Q.replace(/\./g, "\\.");
const d = D.replace(/\./g, "\\.");

// configure, write, read patterns per grant on the dead exchange
const combos = {
  "none":            { configure: `^${q}$`,          write: `^${q}$`,          read: `^${q}$` },
  "read-dead":       { configure: `^${q}$`,          write: `^${q}$`,          read: `^(${q}|${d})$` },
  "write-dead":      { configure: `^${q}$`,          write: `^(${q}|${d})$`,   read: `^${q}$` },
  "configure-dead":  { configure: `^(${q}|${d})$`,   write: `^${q}$`,          read: `^${q}$` },
  "read+write-dead": { configure: `^${q}$`,          write: `^(${q}|${d})$`,   read: `^(${q}|${d})$` },
};

let i = 0;
for (const [label, perms] of Object.entries(combos)) {
  await api("PUT", "/api/permissions/%2f/al", perms);
  const queue = `${Q}.${i++}`; // fresh each time
  try {
    const c = await amqp.connect(`amqp://al:s@127.0.0.1:${PORT}/`);
    const ch = await c.createChannel();
    ch.on("error", () => {});
    await ch.assertQueue(queue, { durable: true, deadLetterExchange: D });
    console.log(`${label}: declare-with-DLX OK`);
    await c.close();
  } catch (e) {
    console.log(`${label}: FAIL - ${String(e.message).slice(0, 70)}`);
  }
}