#!/usr/bin/env node
// Start mnote-web (mock Pi) on a free port and run S2–S7 acceptance smokes.
// Does not touch unrelated workspace state. Prefer existing BASE if set.

"use strict";

const { spawn } = require("node:child_process");
const fs = require("node:fs");
const net = require("node:net");
const os = require("node:os");
const path = require("node:path");
const { pathToFileURL } = require("node:url");

const REPO = path.resolve(__dirname, "..");
const RUST_DIR = path.join(REPO, "rust");
const BINARY = path.join(RUST_DIR, "target/debug/mnote-web");
const TIMEOUT_MS = Number(process.env.MNOTE_S2_S7_TIMEOUT_MS || 120_000);
const EXTERNAL_BASE = (process.env.MNOTE_PI_LAB_BASE || process.env.MNOTE_S2_BASE || "").replace(
  /\/+$/,
  "",
);

const SMOKES = [
  "task-s2-skills-mcp-delete-no-ghost-smoke.js",
  "task-s3-directory-grants-allowed-roots-smoke.js",
  "task-s4-pi-abort-idempotent-smoke.js",
  "task-s5-rag-health-summary-filetree-smoke.js",
  "task-s6-pi-resume-history-hydrate-smoke.js",
  "task-s7-agent-target-dirty-guard-smoke.js",
];

function findFreePort() {
  return new Promise((resolve, reject) => {
    const server = net.createServer();
    server.listen(0, "127.0.0.1", () => {
      const address = server.address();
      if (!address || typeof address === "string") {
        server.close(() => reject(new Error("无法分配测试端口")));
        return;
      }
      const port = address.port;
      server.close(() => resolve(port));
    });
    server.on("error", reject);
  });
}

async function waitForGateway(baseUrl) {
  const deadline = Date.now() + TIMEOUT_MS;
  let lastError = null;
  while (Date.now() < deadline) {
    try {
      const response = await fetch(`${baseUrl}/api/gateway/health`, {
        redirect: "manual",
        cache: "no-store",
      });
      if (response.ok && response.headers.get("x-mnote-web-owner") === "mnote-web") {
        return;
      }
      lastError = new Error(`gateway health: ${response.status}`);
    } catch (error) {
      lastError = error;
    }
    await new Promise((r) => setTimeout(r, 300));
  }
  throw lastError || new Error("gateway health 未就绪");
}

function startGateway(port, controlPlaneDb) {
  const env = {
    ...process.env,
    MNOTE_WEB_ALLOW_DEV_FIXTURES: "1",
    MNOTE_WEB_BIND: `127.0.0.1:${port}`,
    MNOTE_WEB_PUBLIC_BIND: `127.0.0.1:${port}`,
    MNOTE_CONTROL_PLANE_BACKEND: "libsql-local",
    MNOTE_TURSO_LOCAL_PATH: controlPlaneDb,
    MNOTE_PAGE_AI_PI_LAB: "1",
    MNOTE_PAGE_AI_PI_LAB_RUNTIME: "mock",
    MNOTE_PAGE_AI_PI_WARMUP: "0",
    MNOTE_PAGE_AI_PI_WARMUP_SEND: "0",
    RUST_LOG: process.env.RUST_LOG || "warn",
  };
  const cmd = fs.existsSync(BINARY)
    ? [BINARY]
    : ["cargo", "run", "-q", "-p", "mnote-web", "--bin", "mnote-web"];
  const child = spawn(cmd[0], cmd.slice(1), {
    cwd: RUST_DIR,
    env,
    stdio: ["ignore", "pipe", "pipe"],
  });
  let stderr = "";
  child.stderr.on("data", (chunk) => {
    stderr += chunk.toString();
    if (stderr.length > 20_000) stderr = stderr.slice(-20_000);
  });
  child.stdout.on("data", () => {});
  child._s2s7Stderr = () => stderr;
  return child;
}

function runSmoke(script, base) {
  return new Promise((resolve, reject) => {
    const env = {
      ...process.env,
      MNOTE_PI_LAB_BASE: base,
      MNOTE_S2_BASE: base,
      MNOTE_S3_BASE: base,
      MNOTE_S4_BASE: base,
      MNOTE_S5_BASE: base,
      MNOTE_S6_BASE: base,
      MNOTE_S7_BASE: base,
    };
    const child = spawn(process.execPath, [path.join(__dirname, script)], {
      cwd: REPO,
      env,
      stdio: ["ignore", "pipe", "pipe"],
    });
    let out = "";
    let err = "";
    child.stdout.on("data", (c) => {
      out += c.toString();
      process.stdout.write(c);
    });
    child.stderr.on("data", (c) => {
      err += c.toString();
      process.stderr.write(c);
    });
    child.on("exit", (code) => {
      if (code === 0) resolve({ script, out });
      else reject(new Error(`${script} exited ${code}\n${err || out}`));
    });
  });
}

async function main() {
  let child = null;
  let base = EXTERNAL_BASE;
  const tmpDbDir = fs.mkdtempSync(path.join(os.tmpdir(), "mnote-s2s7-cp-"));
  const controlPlaneDb = path.join(tmpDbDir, "control-plane-s2s7.db");

  try {
    if (!base) {
      const port = await findFreePort();
      base = `http://127.0.0.1:${port}`;
      console.log(`\n🚀 starting mnote-web mock on ${base}\n`);
      child = startGateway(port, controlPlaneDb);
      child.on("exit", (code, signal) => {
        if (code && code !== 0) {
          console.error(`mnote-web exited code=${code} signal=${signal}`);
          console.error(child._s2s7Stderr && child._s2s7Stderr());
        }
      });
      await waitForGateway(base);
      console.log("  gateway ready\n");
    } else {
      console.log(`\n🔗 using external BASE ${base}\n`);
      await waitForGateway(base);
    }

    const results = [];
    for (const script of SMOKES) {
      console.log(`── ${script} ──`);
      await runSmoke(script, base);
      results.push(script);
    }
    console.log(`\n✅ S2–S7 all passed (${results.length}):\n  ${results.join("\n  ")}\n`);
  } finally {
    if (child && !child.killed) {
      child.kill("SIGTERM");
      await new Promise((r) => setTimeout(r, 500));
      try {
        child.kill("SIGKILL");
      } catch {
        /* ignore */
      }
    }
  }
}

main().catch((err) => {
  console.error("\n❌ S2–S7 runner failed:", err.message || err);
  process.exit(1);
});