const { createServer } = require("http");
const path = require("path");
const { parse } = require("url");

const dev = process.env.NODE_ENV !== "production";
// HOSTNAME in K8s is the pod name — always bind to 0.0.0.0
const hostname = "0.0.0.0";
const port = parseInt(process.env.PORT || "3100", 10);

// In production, load the standalone config to avoid webpack dependency
if (!dev) {
  try {
    const configPath = path.join(__dirname, "next-config.json");
    const nextConfig = JSON.parse(require("fs").readFileSync(configPath, "utf8"));
    process.env.__NEXT_PRIVATE_STANDALONE_CONFIG = JSON.stringify(nextConfig);
  } catch {
    // Config not found (local dev) — next() will load config normally
  }
}

const next = require("next");
const { attachPtyWebSocket } = require("./pty-server");

const app = next({ dev, hostname, port, dir: __dirname });
const handle = app.getRequestHandler();

app.prepare().then(() => {
  const server = createServer((req, res) => {
    const parsedUrl = parse(req.url || "/", true);
    handle(req, res, parsedUrl);
  });

  attachPtyWebSocket(server);

  server.listen(port, hostname, () => {
    console.log(`> Harness ready on http://${hostname}:${port}`);
  });
});