import { spawn } from "node:child_process";
import fs from "node:fs";
import path from "node:path";

const projectDir = process.cwd();
const standaloneDir = path.join(projectDir, ".next", "standalone");
const standalonePublicDir = path.join(standaloneDir, "public");
const standaloneStaticDir = path.join(standaloneDir, ".next", "static");

fs.rmSync(standalonePublicDir, { recursive: true, force: true });
fs.rmSync(standaloneStaticDir, { recursive: true, force: true });
fs.cpSync(path.join(projectDir, "public"), standalonePublicDir, {
  recursive: true,
});
fs.mkdirSync(path.dirname(standaloneStaticDir), { recursive: true });
fs.cpSync(path.join(projectDir, ".next", "static"), standaloneStaticDir, {
  recursive: true,
});

const server = spawn(process.execPath, [path.join(standaloneDir, "server.js")], {
  cwd: standaloneDir,
  env: {
    ...process.env,
    HOSTNAME: "127.0.0.1",
    PORT: "3100",
  },
  stdio: "inherit",
});

const stopServer = (signal) => {
  if (!server.killed) server.kill(signal);
};

process.once("SIGINT", () => stopServer("SIGINT"));
process.once("SIGTERM", () => stopServer("SIGTERM"));
server.once("exit", (code, signal) => {
  process.exitCode = signal ? 1 : (code ?? 1);
});