import test from "node:test";
import assert from "node:assert/strict";
import { spawn } from "node:child_process";
import { createServer } from "node:http";
import os from "node:os";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";

const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");

function listen(server, host = "127.0.0.1") {
  return new Promise((resolve, reject) => {
    server.once("error", reject);
    server.listen(0, host, () => {
      server.off("error", reject);
      resolve(server.address().port);
    });
  });
}

function readJsonBody(request) {
  return new Promise((resolve, reject) => {
    let raw = "";
    request.setEncoding("utf8");
    request.on("data", (chunk) => {
      raw += chunk;
    });
    request.on("end", () => {
      try {
        resolve(raw ? JSON.parse(raw) : {});
      } catch (error) {
        reject(error);
      }
    });
    request.on("error", reject);
  });
}

async function waitFor(predicate, timeoutMs = 5000) {
  const started = Date.now();
  while (Date.now() - started < timeoutMs) {
    if (await predicate()) return;
    await new Promise((resolve) => setTimeout(resolve, 50));
  }
  throw new Error("waitFor timeout");
}

test("local-agent forwards computer-use dialog intervention to control plane instead of completing task", async () => {
  const runtimeRoot = await mkdtemp(path.join(os.tmpdir(), "boss-local-agent-dialog-flow-"));
  const skillsDir = path.join(runtimeRoot, "skills");
  await mkdir(skillsDir, { recursive: true });

  const completeBodies = [];
  let claimCount = 0;
  const controlPlane = createServer(async (request, response) => {
    const url = request.url || "";
    if (request.method === "POST" && url === "/api/v1/master-agent/tasks/claim") {
      claimCount += 1;
      response.writeHead(200, { "content-type": "application/json" });
      response.end(
        JSON.stringify({
          ok: true,
          task:
            claimCount === 1
              ? {
                  taskId: "desktop-dialog-task",
                  taskType: "desktop_control",
                  projectId: "master-agent",
                  requestText: "打开系统设置并处理权限弹窗",
                  requestedByAccount: "krisolo",
                  deviceId: "mac-studio",
                  dispatchExecutionId: "dispatch-dialog-task",
                  targetThreadId: "thread-dialog",
                  requestedAt: "2026-05-11T10:00:00.000Z",
                  riskLevel: "high",
                }
              : null,
        }),
      );
      return;
    }
    if (
      request.method === "POST" &&
      url === "/api/v1/master-agent/tasks/desktop-dialog-task/complete"
    ) {
      completeBodies.push(await readJsonBody(request));
      response.writeHead(200, { "content-type": "application/json" });
      response.end(JSON.stringify({ ok: true }));
      return;
    }
    if (request.method === "POST" && url === "/api/device-heartbeat") {
      response.writeHead(200, { "content-type": "application/json" });
      response.end(JSON.stringify({ ok: true, token: "server-token" }));
      return;
    }
    if (request.method === "POST" && url === "/api/v1/app-logs") {
      response.writeHead(200, { "content-type": "application/json" });
      response.end(JSON.stringify({ ok: true }));
      return;
    }
    if (request.method === "POST" && url === "/api/v1/devices/mac-studio/skills") {
      response.writeHead(200, { "content-type": "application/json" });
      response.end(JSON.stringify({ ok: true }));
      return;
    }
    response.writeHead(404, { "content-type": "application/json" });
    response.end(JSON.stringify({ ok: false, message: "not_found", url }));
  });

  const controlPort = await listen(controlPlane);
  const agentServer = createServer();
  const agentPort = await listen(agentServer);
  await new Promise((resolve) => agentServer.close(resolve));

  const configPath = path.join(runtimeRoot, "local-agent-config.json");
  await writeFile(
    configPath,
    JSON.stringify({
      port: agentPort,
      bindHost: "127.0.0.1",
      controlPlaneUrl: `http://127.0.0.1:${controlPort}`,
      deviceId: "mac-studio",
      token: "local-token",
      name: "Mac Studio",
      account: "krisolo",
      status: "online",
      codexSessionDiscoveryEnabled: false,
      skillsDir,
      masterAgentEnabled: true,
      masterAgentPollIntervalMs: 60_000,
      heartbeatIntervalMs: 60_000,
      skillLifecycleEnabled: false,
      computerUseEnabled: true,
      computerUseCommand: process.execPath,
      computerUseArgs: ["tests/fixtures/computer-use-dialog-runtime.mjs"],
      computerUseWorkdir: repoRoot,
      computerUseTimeoutMs: 5000,
    }),
  );

  const child = spawn(process.execPath, ["local-agent/server.mjs", configPath], {
    cwd: repoRoot,
    env: process.env,
    stdio: ["ignore", "pipe", "pipe"],
  });

  try {
    await waitFor(() => completeBodies.length > 0);
    const body = completeBodies.at(0);
    assert.equal(body.status, "needs_user_action");
    assert.equal(body.kind, "dialog_intervention_required");
    assert.equal(body.dialogId, "dialog-system-permission");
    assert.equal(body.appName, "System Settings");
    assert.equal(body.platform, "darwin");
    assert.equal(body.risk, "high");
    assert.equal(body.summary, "System Settings 弹窗需要用户确认。");
    assert.deepEqual(body.availableActions, ["handled_on_device", "cancel_task"]);
    assert.equal(body.dispatchExecutionId, "dispatch-dialog-task");
    assert.equal(body.targetThreadId, "thread-dialog");
    assert.equal(body.replyBody, undefined);
  } finally {
    child.kill("SIGTERM");
    controlPlane.close();
    await rm(runtimeRoot, { recursive: true, force: true });
  }
});