#!/usr/bin/env node
"use strict";

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

const packageRoot = path.join(__dirname, "..");
const bundle = path.join(packageRoot, "dist", "app.mjs");

// `server-config update` self-updates the checkout: pull, reinstall deps, rebuild.
// It runs outside the TUI because it must not depend on (or fight with) the bundle
// it is about to replace.
if (process.argv[2] === "update") {
  runUpdate();
  return;
}

if (!fs.existsSync(bundle)) {
  process.stderr.write(
    "server-config: bundle not built. Run `npm run build` from the package root first.\n",
  );
  process.exit(1);
}

import(pathToFileURL(bundle).href).catch((error) => {
  process.stderr.write(`server-config: ${error?.stack || error}\n`);
  process.exit(1);
});

function runUpdate() {
  if (!fs.existsSync(path.join(packageRoot, ".git"))) {
    process.stderr.write(
      "server-config: cannot update — package root is not a git checkout.\n",
    );
    process.exit(1);
  }

  const npm = process.platform === "win32" ? "npm.cmd" : "npm";
  const steps = [
    ["git", ["pull", "--ff-only"]],
    [npm, ["install"]],
    [npm, ["run", "build"]],
  ];

  for (const [cmd, args] of steps) {
    process.stdout.write(`\n$ ${cmd} ${args.join(" ")}\n`);
    const result = spawnSync(cmd, args, { cwd: packageRoot, stdio: "inherit" });
    if (result.error) {
      process.stderr.write(`server-config: failed to run ${cmd}: ${result.error.message}\n`);
      process.exit(1);
    }
    if (result.status !== 0) {
      process.stderr.write(`server-config: \`${cmd} ${args.join(" ")}\` exited with code ${result.status}\n`);
      process.exit(result.status || 1);
    }
  }

  process.stdout.write("\nserver-config: update complete.\n");
}