import assert from "node:assert/strict";
import path from "node:path";
import test from "node:test";
import { AcpWorker } from "../src/acp/worker.js";
import { parseConfig } from "../src/config.js";
import { RoleRegistry } from "../src/roles/role-registry.js";

const fixture = path.resolve("test/fixtures/fake-acp-agent.mjs");

function makeWorker(promptTimeoutMs = 80) {
  const config = parseConfig({
    configVersion: 2,
    acp: { promptTimeoutMs, cancelGraceMs: 30 },
    backends: [{ id: "kimi", command: process.execPath, args: [fixture] }],
    defaultRole: "assistant",
    roles: [{ id: "assistant", backend: "kimi", workspace: path.resolve("."), policy: { permissionMode: "deny" } }],
    platforms: {}
  });
  let crashes = 0;
  const worker = new AcpWorker(config.backends[0], new RoleRegistry(config).get(), config.acp, () => { crashes++; });
  return { worker, crashes: () => crashes };
}

test("worker times out a hung prompt and can be terminated", async () => {
  const { worker } = makeWorker();
  await worker.start();
  await assert.rejects(worker.prompt("hang"), /timed out/);
  await worker.terminate();
});

test("worker reports an unexpected ACP subprocess exit", async () => {
  const current = makeWorker(500);
  await current.worker.start();
  await assert.rejects(current.worker.prompt("crash"));
  await new Promise((resolve) => setTimeout(resolve, 20));
  assert.equal(current.crashes(), 1);
});