"use strict";

const test = require("node:test");
const assert = require("node:assert/strict");
const crypto = require("node:crypto");
const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");

test("health surface stays read-only and identifies Chenglu Agent", async () => {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "chenglu-server-"));
  const { privateKey, publicKey } = crypto.generateKeyPairSync("ed25519");
  process.env.CHENGLU_STATE_PATH = path.join(dir, "state.json");
  process.env.CHENGLU_IDENTITY_KEY = path.join(dir, "identity.key");
  process.env.CHENGLU_IDENTITY_PUBLIC = path.join(dir, "identity.pub");
  fs.writeFileSync(process.env.CHENGLU_IDENTITY_KEY, privateKey.export({ type: "pkcs8", format: "pem" }));
  fs.writeFileSync(process.env.CHENGLU_IDENTITY_PUBLIC, publicKey.export({ type: "spki", format: "pem" }));
  fs.writeFileSync(process.env.CHENGLU_STATE_PATH, JSON.stringify({ version: 2, mode: "ONLINE_IDLE" }));
  const { createServer } = require("../src/server");
  const server = createServer().listen(0, "127.0.0.1");
  try {
    await new Promise(resolve => server.once("listening", resolve));
    const address = server.address();
    const health = await fetch(`http://127.0.0.1:${address.port}/health`).then(response => response.json());
    assert.deepEqual(health, { ok: true, agent_id: "CHENGLU-AGENT-001", mode: "ONLINE_IDLE" });
    const rejected = await fetch(`http://127.0.0.1:${address.port}/v1/identity`, { method: "DELETE" });
    assert.equal(rejected.status, 404);
  } finally { await new Promise(resolve => server.close(resolve)); fs.rmSync(dir, { recursive: true, force: true }); }
});