/**
 * Local stack: Next.js web + IMAP worker in one process group.
 * Usage: pnpm dev  /  pnpm dev:stack
 */
import { spawn } from "node:child_process";
import path from "node:path";
import { fileURLToPath } from "node:url";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const children = [];

function start(label, args) {
  const child = spawn("pnpm", args, {
    cwd: root,
    stdio: "inherit",
    shell: true,
    env: process.env,
  });
  child.on("exit", (code, signal) => {
    console.error(`[dev-stack] ${label} exited code=${code} signal=${signal}`);
    shutdown(code ?? 1);
  });
  children.push(child);
  return child;
}

let shuttingDown = false;
function shutdown(code = 0) {
  if (shuttingDown) return;
  shuttingDown = true;
  for (const child of children) {
    if (!child.killed) {
      try {
        child.kill("SIGTERM");
      } catch {
        /* ignore */
      }
    }
  }
  // Give children a moment, then force-exit so orphaned cmd.exe on Windows dies with parent intent
  setTimeout(() => process.exit(code), 500).unref();
}

process.on("SIGINT", () => shutdown(0));
process.on("SIGTERM", () => shutdown(0));

console.log("[dev-stack] starting web (next) + worker …");
// Use dev:web so this is never recursive with package.json "dev" = this script
start("web", ["run", "dev:web"]);
start("worker", ["run", "worker"]);