#!/usr/bin/env node
import { spawnSync } from "node:child_process";
import path from "node:path";
import { fileURLToPath } from "node:url";

export function runLighthouse({ spawn = spawnSync, stdout = process.stdout, stderr = process.stderr } = {}) {
  const result = spawn("npx", ["--yes", "@lhci/cli@0.13.0", "autorun"], {
    encoding: "utf8",
  });

  if (result.stdout) stdout.write(result.stdout);
  if (result.stderr) stderr.write(result.stderr);

  if (result.error?.code === "ENOENT") {
    stdout.write("SKIP lhci not installable in this environment\n");
    return 0;
  }

  const combinedOutput = `${result.stdout ?? ""}\n${result.stderr ?? ""}`;
  if (combinedOutput.includes("Chrome installation not found")) {
    stdout.write("SKIP Chrome not installed; Lighthouse CI requires a local Chrome/Chromium binary.\n");
    return 0;
  }

  return result.status ?? 0;
}

const isCli = process.argv[1] && fileURLToPath(import.meta.url) === path.resolve(process.argv[1]);

if (isCli) {
  process.exit(runLighthouse());
}