import { mkdir } from "node:fs/promises";
import { dirname } from "node:path";
import { Database } from "bun:sqlite";

const source = process.env.DB_PATH || "./dev.sqlite";
const destination = Bun.argv[2];
if (!destination) {
  console.error("Usage: bun scripts/backup.ts /path/to/new-backup.sqlite");
  process.exit(1);
}
if (await Bun.file(destination).exists()) {
  console.error(`Backup already exists: ${destination}`);
  process.exit(1);
}

await mkdir(dirname(destination), { recursive: true });
const db = new Database(source);
try {
  db.query("VACUUM INTO ?").run(destination);
  console.log(`SQLite backup written to ${destination}`);
} finally {
  db.close();
}