import fs from "node:fs/promises";
import path from "node:path";
import { spawn } from "node:child_process";
import { fileURLToPath } from "node:url";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const files = [];
async function walk(directory) {
  for (const entry of await fs.readdir(directory, { withFileTypes: true })) {
    const target = path.join(directory, entry.name);
    if (entry.isDirectory() && entry.name !== "vendor") await walk(target);
    else if (entry.isFile() && target.endsWith(".mjs")) files.push(target);
  }
}
await walk(root);
for (const file of files) {
  await new Promise((resolve, reject) => {
    const child = spawn(process.execPath, ["--check", file], { stdio: "inherit" });
    child.once("error", reject);
    child.once("exit", (code) => code === 0 ? resolve() : reject(new Error(`Syntax check failed: ${file}`)));
  });
}
console.log(`Checked ${files.length} JavaScript modules.`);