import { createRequire } from "node:module";
import { existsSync } from "node:fs";
import { lstat, readdir } from "node:fs/promises";
import path from "node:path";

const aliasesRoot = path.resolve("dist/.next/node_modules");
const aliases = (await readdir(aliasesRoot)).filter((entry) =>
  entry.startsWith("better-sqlite3-")
);
if (aliases.length === 0) {
  throw new Error("standalone build contains no better-sqlite3 external alias");
}
if (existsSync(path.resolve("dist/node_modules/better-sqlite3"))) {
  throw new Error("standalone build contains a build-platform SQLite binary");
}

const require = createRequire(import.meta.url);
for (const alias of aliases) {
  const aliasPath = path.join(aliasesRoot, alias);
  if ((await lstat(aliasPath)).isSymbolicLink()) {
    throw new Error(`${alias} is an npm-incompatible symbolic link`);
  }
  const Database = require(aliasPath);
  const database = new Database(":memory:");
  try {
    database.prepare("SELECT 1 value").get();
  } finally {
    database.close();
  }
}

console.log(`Verified ${aliases.length} portable better-sqlite3 alias(es).`);